KR20230032818A - Wireless power transmission device for detecting external object and the method thereof - Google Patents

Abstract

According to various embodiments, an electronic device comprises: a resonator in which a first slot is formed; a first inverter connected to first and second points on the first slot of the resonator, and configured to provide power to the first slot for foreign matter detection, wherein first point and the second point on the first slot are located opposite each other with the first slot therebetween; a second inverter connected to third and fourth points of the resonator which are different from the first and second points connected to the first inverter, and configured to transmit power to the resonator; and a controller. The controller controls the first inverter to apply the first power with a first frequency to the first slot, and controls the second inverter to determine at least one first impedance for the first point and the second point while the first power is applied to the first slot, to determine an external object adjacent to the electronic device based on the at least one first impedance, and to apply second power having a second frequency different from the first frequency to the third and fourth points, in order to wirelessly provide power to an external wireless power receiving device during a period at least partially overlapping with a period during which the first power is applied to the resonator. The present invention prevents wireless power transmission efficiency from being reduced.

Description

Wireless power transmission device and method for detecting external objects

Various embodiments relate to a wireless power transmission device and method for detecting an external object.

Wireless power transmission technology is a method of transmitting power using an electromagnetic field induced in a coil. An electromagnetic field is generated by applying a current to a transmitting coil, and an induced current is formed in a receiving coil by the generated electromagnetic field to supply electrical energy. there is.

The wireless power transmitter may transmit power to the wireless power receiver by receiving direct current (DC) power, converting it into alternating current (AC) power, and generating an electromagnetic field through a resonator.

In the case where a foreign substance is present on the wireless power transmission, the wireless power transmission efficiency of the wireless power transmission device may be reduced or the wireless power transmission device may be damaged due to the foreign substance.

Therefore, there is a need for a technique for detecting an object present on a wireless power transmission device and determining whether the object is a power transmission target.

A wireless power transmission device and method for detecting an external object according to various embodiments may detect an external object (eg, a foreign substance) present on the wireless power transmission device and determine the type of the detected external object. there is.

According to various embodiments, an electronic device is connected to a resonator having a first slot, a first point and a second point on the first slot of the resonator, and is configured to provide power to the first slot for foreign matter detection. 1 inverter—the first point and the second point on the first slot are located on opposite sides with the first slot interposed therebetween—, the first point and the second point connected to the first inverter; and a second inverter coupled to a third point and a fourth point of the resonator and configured to transmit power to the resonator, and a controller configured to transmit a first power having a first frequency to the first slot Controls the first inverter to apply the first power to the first slot, checks at least one first impedance for the first point and the second point while the first power is applied to the first slot, and To identify an external object adjacent to the electronic device based on the first impedance, and wirelessly provide power to an external wireless power receiver during a period at least partially overlapping a period in which the first power is applied to the resonator The second inverter may be controlled to apply a second power having a second frequency different from the first frequency to the third point and the fourth point.

According to various embodiments, a resonator included in an electronic device includes a first slot, the resonator is formed in a loop shape, and the first slot has a specified shape by a specified first length along a loop direction of the resonator. wherein the electronic device controls a first inverter connected to a first point and a second point of the resonator to provide a first power having a first frequency to the resonator for foreign matter detection; A first point and the second point are located on opposite sides of the first slot, and at least one of the first point and the second point, which is confirmed while the first power is applied to the resonator. To identify an external object adjacent to the electronic device based on the first impedance of and to provide power to an external wireless power receiver during a period at least partially overlapping with a period in which the first power is applied to the resonator, A third point connected to a third point and a fourth point of the resonator different from the first point and the second point connected to the first inverter to apply a second power having a second frequency different from the first frequency. 2 can be set to control the inverter.

According to various embodiments, a wireless power transmission device and method for detecting an external object may be provided. Accordingly, by detecting an external object present on the wireless power transmission device, it is possible to prevent reduction in wireless power transmission efficiency and damage to the wireless power transmission device.

According to various embodiments, an external object existing on the wireless power transmission device may be detected, and transmission of wireless power may be stopped when the detected external object is not a wireless power transmission target.

1 illustrates a block diagram of an electronic device and a wireless power receiver according to various embodiments.
2 is a schematic configuration diagram of a wireless charging system according to various embodiments.
3 is a block diagram illustrating a wireless charging system according to various embodiments.
4A shows a block diagram of an electronic device, in accordance with various embodiments.
4B shows a block diagram of an electronic device, in accordance with various embodiments.
5 is a flowchart illustrating an operation of an electronic device according to various embodiments.
6 is a diagram illustrating a resonator included in an electronic device according to various embodiments.
7 is a diagram illustrating a resonator included in an electronic device according to various embodiments.
8 is a diagram for explaining an operation of an electronic device according to various embodiments.
9A is a diagram for describing an operation of an electronic device according to various embodiments.
9B is a diagram for describing an operation of an electronic device according to various embodiments.
10 is a diagram for describing an operation of an electronic device according to various embodiments.
11 is a diagram for describing an operation of an electronic device according to various embodiments.
12A is a diagram for describing an operation of an electronic device according to various embodiments.
12B is a diagram for describing an operation of an electronic device according to various embodiments.
13 is a flowchart illustrating an operation of an electronic device according to various embodiments.
14 is a diagram for describing an operation of an electronic device according to various embodiments.
15 is a flowchart illustrating an operation of an electronic device according to various embodiments.
16 is a diagram illustrating a resonator included in an electronic device according to various embodiments.
17 is a diagram illustrating a resonator included in an electronic device according to various embodiments.
18 is a diagram for describing an operation of an electronic device according to various embodiments.
19 is a diagram for describing an operation of an electronic device according to various embodiments.
20 is a diagram for describing an operation of an electronic device according to various embodiments.
21 is a diagram for describing an operation of an electronic device according to various embodiments.
22 is a diagram for describing an operation of an electronic device according to various embodiments.
23 is a diagram for explaining an operation of an electronic device according to various embodiments.
24 is a diagram for explaining an operation of an electronic device according to various embodiments.
25 is a diagram illustrating a resonator included in an electronic device according to various embodiments.
26 shows a block diagram of an electronic device, in accordance with various embodiments.
27 shows a block diagram of an electronic device, in accordance with various embodiments.
28 is a flowchart illustrating an operation of an electronic device according to various embodiments.

1 illustrates a block diagram of an electronic device and a wireless power receiver according to various embodiments.

Referring to FIG. 1 , an electronic device 101 according to various embodiments may wirelessly transmit power 103 to a wireless power receiver 195 . In one example, the electronic device 101 may transmit power 103 according to an induction method. When the electronic device 101 is inductive, the electronic device 101 includes, for example, a power source, a DC-AC conversion circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, at least one coil, and communication. A modulation/demodulation circuit may be included. At least one capacitor may constitute a resonant circuit together with at least one coil. The electronic device 101 may be implemented in a manner defined in a wireless power consortium (WPC) standard (or Qi standard). In another example, the electronic device 101 may transmit power 103 according to a resonance method. In the case of a resonance method, the electronic device 101 includes, for example, a power source, a DC-AC conversion circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, at least one coil, and an out-of-band communication circuit. (eg, a bluetooth low energy (BLE) communication circuit) and the like. At least one capacitor and at least one coil may constitute a resonant circuit. The electronic device 101 may be implemented in a manner defined in the Alliance for Wireless Power (A4WP) standard (or air fuel alliance (AFA) standard). The electronic device 101 may include a coil capable of generating an induced magnetic field when a current flows according to a resonance method or an induction method. A process of generating an induced magnetic field by the electronic device 101 may be expressed as the electronic device 101 transmitting power 103 wirelessly. In addition, the wireless power receiver 195 may include a coil in which induced electromotive force is generated by a magnetic field whose size changes with time formed around it. A process of generating an induced electromotive force through a coil may be expressed as that the wireless power receiver 195 wirelessly receives the power 103 . For example, the electronic device 101 is a method defined in the airFuel inductive (eg, PMA (power matters alliance)) or airfuel resonant (eg, rezence) standard, or defined in the Qi standard, as a standard for wireless power transmission. It can be implemented in a way that

The electronic device 101 according to various embodiments may communicate with the wireless power receiver 195 . For example, the electronic device 101 may communicate with the wireless power receiver 195 according to an in-band method. The electronic device 101 may perform modulation according to, for example, a frequency shift keying (FSK) modulation method for data to be transmitted, and the wireless power receiver 195 may perform modulation according to an amplitude shift keying (ASK) modulation method. Modulation can be performed accordingly. The electronic device 101 and/or the wireless power receiver 195 may determine data transmitted from the other device based on the frequency and/or amplitude of the current, voltage, or power of the coil. An operation of performing modulation based on the ASK modulation scheme and/or the FSK modulation scheme may be understood as an operation of transmitting data according to an in-band communication scheme. An operation of determining data to be transmitted from an external device by performing demodulation based on the magnitude of frequency and/or amplitude of current, voltage, or power of a coil is an operation of receiving data according to an in-band communication method. can be understood For example, the electronic device 101 may communicate with the wireless power receiver 195 according to an out-of-band method. The electronic device 101 or the wireless power receiver 195 may transmit and receive data using a communication circuit (eg, a BLE communication module) provided separately from a coil or patch antenna.

In this document, the electronic device 101 or the wireless power receiver 195 performing a specific operation is various hardware included in the electronic device 101 or the wireless power receiver 195, for example, a processor (eg For example, it may mean that a control circuit such as a transmission IC and/or a micro controlling unit (MCU) or a coil performs a specific operation. Alternatively, when the electronic device 101 or the wireless power receiver 195 performs a specific operation, the processor may control other hardware to perform the specific operation. Alternatively, when the electronic device 101 or the wireless power receiver 195 performs a specific operation, the specific operation stored in a storage circuit (eg, memory) of the electronic device 101 or the wireless power receiver 195 It may also mean causing a processor or other hardware to perform a particular action as at least one instruction to perform is executed.

2 is a schematic configuration diagram of a wireless charging system according to various embodiments.

Referring to FIG. 2 , a wireless charging system according to various embodiments may include an electronic device 101 and at least one wireless power receiver 195-1, 195-2, and 195-3. Each of the at least one wireless power receiver 195 - 1 , 195 - 2 , and 195 - 3 may be an electronic device of the same type as the wireless power receiver 195 .

According to various embodiments, the electronic device 101 may be a device that wirelessly transmits power based on power supplied from a charger (eg, TA, travel adapter). According to another embodiment, the electronic device 101 is a device including a wireless power transmission function, and may be implemented as, for example, a smart phone, and the implementation form is not limited. The wireless power receiver 195 may be an electronic device such as a smart phone or a wearable device, and there is no limitation in its implementation.

Referring to FIG. 2 , the electronic device 101 may include a base housing 210 and at least one resonator 230 or 240 . In addition, at least one of the wireless power receivers 195 - 1 , 195 - 2 , and 195 - 3 may be freely mounted around the electronic device 101 .

According to various embodiments, a coordinate axis indicated in the drawings of this document may indicate a direction in which a certain element is directed. The coordinate axis here may be a coordinate axis (X-axis, Y-axis, Z-axis) in a 3-dimensional space. Referring to FIG. 2 , the X axis may be an axis parallel to the horizontal direction (or length direction) of the electronic device 101, and the Y axis may be an axis parallel to the vertical direction (or width direction) of the electronic device 101. The Z-axis may be an axis parallel to the height direction of the electronic device 101 . The coupling relationship of each component may be described with reference to various drawings disclosed in this document and coordinate axes included therein. The shape of the electronic device 101 disclosed in FIG. 2 is exemplary, and the shape of the electronic device 101 is not limited.

The base housing 210 is a part forming the exterior of the electronic device 101 together with at least one of the resonator housings 231 and 241, and various electronic components included in the electronic device 101 are located in the inner space of the base housing 210. can accommodate them. According to an embodiment, the various electronic components may be integrated and accommodated in a system module of the electronic device 101 . The shape of the base housing 210 of the electronic device 101 according to various embodiments of the present disclosure is not limited to any specific embodiment. For example, in the embodiment shown in FIG. 2 , the base housing 210 may have a cylindrical cylindrical shape as a whole, but is not necessarily limited thereto. Various other embodiments may be applied, such as a polyhedron including a hexahedron.

The electronic device 101 may include resonators 230 and 240 . The resonators 230 and 240 include a first resonator 230 including at least one coil and at least one capacitor and surrounded by a first resonator housing 231, at least one coil and at least one capacitor, and It may include a second resonator 240 surrounded by two resonator housings 241 .

According to various embodiments, the resonators 230 and 240 may be ring-shaped resonators having a hollow inside. The first resonator 230 and the second resonator 240 have the same size, shape, and internal configuration (eg, an internal configuration including at least one capacitor and at least one coil) of the housings 231 and 241, and the like. or otherwise formed.

The base housing 210 may form a structure capable of supporting the first resonator housing 231 and the second resonator housing 241 . Here, the first resonator housing 231 may be placed on the base housing 210 in a horizontal direction, and the second resonator housing 241 may be placed on the base housing 210 in a vertical direction. For example, the first resonator housing 231 may be coupled to the cylindrical outer periphery of the base housing 210 in a laid-down state, and the second resonator housing 241 is the central portion of the upper surface 211 of the base housing 210 It can be built by being coupled to the groove 212 formed in.

According to one embodiment, the first resonator 230 and the second resonator 240 are formed to be interchangeable, and cross arrangement may be possible. For example, the second resonator housing 241 may be mounted on the base housing 210 at a position where the first resonator housing 231 is mounted, and the first resonator may be mounted on a position where the second resonator housing 241 is mounted. The housing 231 may be mounted. Hereinafter, for convenience of explanation, the first resonator housing 231 is mounted horizontally with respect to the base housing 210 (or with respect to the ground), and the second resonator housing 241 is with respect to the base housing 210 (or with respect to the ground) It should be noted that the description is centered on the vertically mounted embodiment, but is not limited thereto.

According to various embodiments, the first resonator 230 mounted horizontally on the base housing 210 is mainly coupled to wireless power receivers placed on the floor near the electronic device 101 to transmit wireless power. can do. In addition, the second resonator 240 mounted vertically with respect to the base housing 210 is erected near the electronic device 101 or wireless power reception disposed at a predetermined distance from the floor in the height direction of the electronic device 101. It is mainly coupled to the devices to transmit wireless power. However, it is not necessarily limited thereto, and according to an embodiment, wireless power is provided to wireless power receivers built near the electronic device 101 or disposed at a predetermined distance from the floor using the first resonator 230. It is also possible to transmit wireless power to wireless power receivers placed on the floor using the second resonator 240 . However, charging the wireless power receivers placed on the floor using the first resonator 230 and charging the wireless power receivers erected or placed at a predetermined distance from the floor using the second resonator 230 is transmission. From an efficiency point of view, it may be more advantageous.

According to the embodiment shown in FIG. 2, the first resonator housing 231 may be formed so that the entire portion (eg, the circumferential portion) of the first resonator housing 231 is exposed to the outside of the base housing 210, but the second resonator housing 231 may be exposed. The resonator housing 241 may be formed such that at least a portion is inserted into the base housing 210 and the remaining portion is exposed to the outside. Since at least a portion of the second resonator housing 241 is inserted into the base housing 210, the second resonator housing 241 can be stably installed. However, shapes related to the base housing 210, the first resonator housing 231, and the second resonator housing 241 are not limited thereto and may vary.

The first resonator housing 231 and the second resonator housing 241 may be detachably coupled from the base housing 210 . Any one of the first resonator housing 231 or the second resonator housing 241 is spaced apart from the base housing 210 of the electronic device 101 by a predetermined distance, and the spaced resonator is used as a repeater so that the electronic device 101 ) may expand the wireless power charging range.

Referring to FIG. 2 , the electronic device 101 may include a power supply unit 250 in a base housing 210 .

The power feeder 250 may be electromagnetically coupled with the resonators 230 and 240, and the resonators 230 and 240 receiving power through coupling with the power feeder 250 may be used for wireless power receiving devices. It can be output or transmitted as power in the form of an electromagnetic field. For example, a power supply unit 250 is disposed on one side of the base housing 210 to generate an electromagnetic field, and the generated electromagnetic field is coupled to the first resonator 230 and the second resonator 240 simultaneously or selectively can make it The power supply unit 250 may be composed of a series/parallel connection of a coil having a loop of at least 1 turn and a capacitor. According to various embodiments, the power feeding unit 250 is disposed in the base housing 210, and at least a portion of the power feeding unit 250 may be exposed to the outside of the base housing 210.

According to various embodiments, the power supply unit 250 may be disposed at various angles at which coupling may occur with the resonators 230 and 240, and may be provided in plurality according to embodiments.

According to various embodiments of the present disclosure, power output for at least one wireless power receiver 195-1, 195-2, 195-3 using the electronic device 101 according to the various embodiments described above Alternatively, it may perform a transmission function.

According to various embodiments of the present disclosure, not only the power output or transmission function using the electronic device 101, but also the at least one wireless power receiver 195-1, 195-2, 195- 3) Various display methods (eg, LED light, sound, text message, voice, etc.) can be provided so that the charging state monitoring information can be recognized intuitively.

Here, the charging state monitoring information includes at least one of voltage information, current information, state of charge (SOC) information, and state of health (SOH) information indicating whether charging is possible or not. can do. A power state of the wireless power receiver may be checked through voltage information or current information. The power state may mean the amount of electrical energy remaining until the batteries of the wireless power receivers 195-1, 195-2, and 195-3 are discharged. For example, the power state may be expressed as a percentage such as 0%, 10%, 50%, and 100%. The state of charge (SOC) may represent whether the wireless power receivers 195-1, 195-2, and 195-3 are being charged or not. Using the electronic device 101 of the present disclosure, state information (SOH) may also be displayed as to whether the wireless power receivers 195-1, 195-2, and 195-3 can be charged or not. The charge state monitoring information is not limited thereto.

The electronic device 101 may obtain location information about at least one wireless power receiver 195-1, 195-2, or 195-3 located around 360 degrees. In order to obtain location information, the above-described phased array coil or UWB radar sensor may be used. Alternatively, a phased array coil and a UWB radar sensor may be used together to further increase the accuracy of location information. Charge state monitoring information may be acquired through the short-range communication module 103 of the electronic device 101 .

Method for displaying information about a power transmission method and position of at least one wireless power receiver 195-1, 195-2, 195-3 disposed around an electronic device 101, and a charging state according to an embodiment, according to an embodiment A schematic flow of a method of displaying information about may be as follows. First, the electronic device 101 transmits a load detection beacon and/or a power beacon, and feedbacks various information including voltage/wattage information from the wireless power receiver in response to the load detection beacon and/or power beacon. can receive Information received as feedback from the wireless power receiver and information about the wireless power receiver obtained through the short-range communication module 103 may be mapped. Unique IDs for at least one wireless power receiver 195-1, 195-2, and 195-3 may be identified using the short-range communication module 103 included in the electronic device 101. Furthermore, a pairing operation may be performed with respect to a wireless power receiver having an authenticated ID. The paired electronic device 101 and the wireless power receiver may transmit and receive various data about, for example, a power state and a charging state. Further, location information on at least one wireless power receiver 195-1, 195-2, and 195-3 disposed around the electronic device 101 may be roughly obtained.

The electronic device 101 according to an embodiment uses a resonance method as a power transmission method for at least one wireless power receiver 195-1, 195-2, and 195-3 located 360 degrees around the electronic device 101. It may be adopted (eg, application of the first resonator 230 and the second resonator 240 of FIG. 2 ). Assuming that the electronic device 101 is fixed at a certain location, power can be transmitted only when the wireless power receivers 195-1, 195-2, and 195-3 are placed within a designated distance from the electronic device 101. . For example, an effective distance for wireless power transmission between the wireless power transmitter 100 and the wireless power receivers 195-1, 195-2, and 195-3 may be 50 cm or less, preferably 30 cm or less. 2 shows a first effective distance A as an example of an effective distance for wireless power transmission. According to the embodiment shown in FIG. 2, the first wireless power receiver 195-1 and the second wireless power receiver 195-2 have an effective distance for wireless power transmission (eg, a first effective distance A )), the charging operation can be performed normally. In contrast, since the third wireless power receiver 195-3 is disposed outside the effective distance, charging may not be performed or charging efficiency may be very low.

3 is a block diagram illustrating a wireless charging system according to various embodiments.

Referring to FIG. 3 , a wireless charging system according to various embodiments may include an electronic device 101 and a wireless power receiver 195 . When the wireless power receiver 195 is mounted on the electronic device 101, the electronic device 101 can wirelessly supply power to the wireless power receiver 195.

According to various embodiments, the electronic device 101 may include a power transmission circuit 311 , a control circuit 312 , a communication circuit 313 , or a sensing circuit 314 .

According to various embodiments, the power transmission circuit 311 includes a power adapter 311a that receives power (or power) from the outside and appropriately converts the voltage of the input power, and a power generation circuit 311b that generates power. ), or a matching circuit 311c that improves efficiency between the transmitting coil 311L and the receiving coil 321L.

According to various embodiments, the power transmission circuit 311 includes a power adapter 311a to transmit power to at least one wireless power receiver (eg, a first wireless power receiver and a second wireless power receiver); At least one of a power generation circuit 311b, a transmission coil 311L, or a matching circuit 311c may be included.

According to various embodiments, the control circuit 312 may perform overall control of the electronic device 101, generate various messages (eg, instructions) required for wireless power transmission, and transmit them to the communication circuit 313. In one embodiment, the control circuit 312 may calculate power (or amount of power) to be transmitted to the wireless power receiver 195 based on information received from the communication circuit 313 . In one embodiment, the control circuit 312 may control the power transmission circuit 311 so that the power generated by the transmission coil 311L is transmitted to the wireless power receiver 195.

According to various embodiments, the communication circuit 313 may include at least one of a first communication circuit 313a and a second communication circuit 313b. The first communication circuit 313a is connected to the first communication circuit 323a of the wireless power receiver 195 using, for example, a frequency identical to or adjacent to a frequency used by the transmission coil 311L for power transmission. - Can communicate based on in-band (IB) communication method.

The first communication circuit 313a may communicate with the first communication circuit 323a of the wireless power receiver 195 using the transmission coil 311L. Data (or communication signals) generated by the first communication circuit 313a may be transmitted using the transmission coil 311L. The first communication circuit 313a may transmit data to the wireless power receiver 195 using a frequency shift keying (FSK) modulation technique. According to various embodiments, the first communication circuit 313a communicates with the first communication circuit 323a of the wireless power receiver 195 by changing the frequency of the power signal transmitted through the transmission coil 311L. can do. Alternatively, the first communication circuit 313a may communicate with the first communication circuit 323a of the wireless power receiver 195 by allowing data to be included in the power signal generated by the power generation circuit 311b. For example, the first communication circuit 313a may perform modulation by increasing or decreasing the frequency of the power transmission signal. The wireless power receiver 195 may check data from the electronic device 101 by performing demodulation based on the frequency of the signal measured by the receiving coil 321L.

The second communication circuit 313b uses, for example, a frequency different from the frequency used for power transmission by the transmission coil 311L to transmit out-of-order with the second communication circuit 323b of the wireless power receiver 195. - Can communicate based on out-of-band (OOB) communication method. For example, the second communication circuit 313b performs second communication using any one of various short-range communication methods such as Bluetooth, Bluetooth low energy (BLE), Wi-Fi, or near field communication (NFC). Information related to the charge state from the circuit 323b (eg, voltage value after rectifier, rectified voltage value (eg, Vrect) information, current information flowing in the coil 321L or rectifier circuit 321b (eg, Iout), various packets, authentication information and/or messages).

According to various embodiments, the sensing circuit 314 may include one or more sensors, and may detect at least one state of the power transmission device 301 using the one or more sensors.

According to various embodiments, the sensing circuit 314 may include at least one of a temperature sensor, a motion sensor, a magnetic field sensor (hall sensor), or a current (or voltage) sensor, and the electronic device ( 101), the motion state of the electronic device 101 can be detected using a motion sensor, and whether or not it is coupled to the wireless power receiver 195 can be detected using a magnetic field sensor. , A state of an output signal of the electronic device 101, for example, a current level, a voltage level, and/or a power level may be sensed using a current (or voltage) sensor.

According to one embodiment, the current (or voltage) sensor may measure a signal from the power transmission circuit 311 . The current (or voltage) sensor may measure a signal in at least a partial region of the matching circuit 311c or the power generation circuit 311b. For example, the current (or voltage sensor) may include a circuit for measuring a signal at a front end of the coil 311L.

According to various embodiments, the sensing circuit 314 may be a circuit for foreign object detection (eg, foreign object detection (FOD)).

According to various embodiments, the wireless power receiving device 195 includes a power receiving circuit 321, a processor 322, a communication circuit 323, sensors 324, a display 325, or a sensing circuit 326. can include The sensors 324 may include a sensing circuit 326 .

According to various embodiments, the power receiving circuit 321 includes a receiving coil 321L that wirelessly receives power from the electronic device 101, an Rx IC 327, and a charging circuit 321d (eg, PMIC, DCDC converter). , a switched capacitor, or a voltage divider), or a battery 321e (eg, the battery 189). In one embodiment, the Rx IC 327 includes a matching circuit 321a coupled to the receiving coil 321L, a rectifying circuit 321b to rectify the received AC power to DC, or a regulating circuit to adjust the charging voltage (e.g., LDO) (321c) may be included.

According to various embodiments, the processor 322 may perform overall control of the wireless power receiver 195, generate various messages required for wireless power reception, and transmit them to the communication circuit 323.

According to various embodiments, the communication circuit 323 may include at least one of a first communication circuit 323a and a second communication circuit 323b. The first communication circuit 323a may communicate with the electronic device 101 through the receiving coil 321L.

The first communication circuit 323a may communicate with the first communication circuit 313a of the electronic device 101 by using the receiving coil 321L. Data (or communication signals) generated by the first communication circuit 323a may be transmitted using the receiving coil 321L. The first communication circuit 323a may transmit data to the electronic device 101 using amplitude shift keying (ASK) modulation. For example, the first communication circuit 323a may change the load of the electronic device 101 according to the modulation method. Accordingly, at least one of voltage, current, or power measured by the transmission coil 311L may be changed. The first communication circuit 313a of the electronic device 101 may check data by the wireless power receiver 195 by demodulating the size change. The second communication circuit 323b may communicate with the electronic device 101 using any one of various short-range communication methods such as Bluetooth, BLE, Wi-Fi, or NFC.

In this document, packets, information, or data transmitted and received between the electronic device 101 and the wireless power receiver 195 may use at least one of the first communication circuit 323a or the second communication circuit 323b.

According to various embodiments, the sensors 324 may include at least some of a current/voltage sensor, a temperature sensor, an illuminance sensor, or an acceleration sensor. In one embodiment, sensors 324 may be the same as or separate components from sensor module 1376 of FIG. 13 .

According to various embodiments, the display 325 may display various types of display information required for wireless power transmission and reception.

According to various embodiments, the sensing circuit 326 may sense the electronic device 101 by detecting a search signal or received power from the electronic device 101 . The sensing circuit 326 changes the signal of the input/output terminal of the coil 321L, the matching circuit 321a, or the rectifier circuit 321b by the coil 321L signal generated by the signal output from the electronic device 101. can detect According to various embodiments, the sensing circuit 326 may be included in the receiving circuit 321 .

4A shows a block diagram of an electronic device, in accordance with various embodiments. 4B shows a block diagram of an electronic device, in accordance with various embodiments.

Referring to FIG. 4A , an electronic device 101 according to various embodiments includes a controller 430, a first inverter 410, a second inverter 420, a resonator 440, and a sensor 450. can do.

According to various embodiments, an inverter (eg, the first inverter 410 or the second inverter 420) may receive direct current (DC) power from a power provider (not shown). For example, a power provider (not shown) that provides direct current (DC) power to the first inverter 410 and a power provider (not shown) that provides direct current (DC) power to the second inverter 420 , may be the same or different. Here, provision of direct current (DC) power may be understood as at least one of application of a direct current voltage or application of a direct current. The power provider (not shown) may receive power from at least one of a direct current power source and an alternating current (AC) power source, and output direct current power. The power provider (not shown) may be controlled by the controller 430, and the controller 430 may use an inverter (eg, the first inverter 410 or the second inverter 420) based on the set output level. It is possible to control a power provider (not shown) to provide power to.

According to various embodiments, an inverter (eg, the first inverter 410 or the second inverter 420) outputs AC power using DC power received from a power provider (not shown). can Here, the output of AC power may be understood as at least one of application of an AC voltage or application of an AC current. An inverter (eg, the first inverter 410 or the second inverter 420 ) may provide AC power to the resonator 440 . The inverter (eg, the first inverter 410 or the second inverter 420) may be controlled by the controller 430, and the controller 430 supplies power to the resonator 440 based on the set output level. It is possible to control an inverter (eg, the first inverter 410 or the second inverter 420) to provide An inverter (eg, the first inverter 410 or the second inverter 420) may control at least one of a width, a duty cycle, or a power level of an output pulse. Alternatively, the controller 430 may control an output level (eg, a driving voltage VDD of an inverter) from a power provider (not shown).

According to various embodiments, the resonator 440 may transmit wireless power to the outside based on the AC power received from the inverter (eg, the second inverter 420). For example, the resonator 440 may be the first resonator 230 or the second resonator 240 of FIG. 2 . Alternatively, for example, the resonator 440 may transmit wireless power like the transmitting coil 311L of FIG. 3 . Or, for example, the resonator 440 may include the transmitting coil 311L of FIG. 3 . Or, for example, the resonator 440 may be the transmitting coil 311L of FIG. 3 . Or, for example, the resonator 440 may include the transmitting coil 311L of FIG. 3 . According to various embodiments, the resonator 440 may include at least one slot (eg, slot 441). Here, the expression including a slot may mean, for example, that a slot is formed in a material constituting the resonator 440, and at least one slot included in the resonator 440 (eg, the slot 441 )) will be described with reference to FIGS. 6, 7, 16, 17, and 25. For example, as the resonator 440 receives AC power from an inverter (eg, the first inverter 410), an electric field formed by at least one slot (eg, the slot 441) An external object adjacent to the electronic device 101 may be identified based on (or a magnetic field). For example, the controller 430 may identify an external object adjacent to the electronic device 101 using the resonator 440 . For example, the slot 441 may mean an empty space formed in the resonator 440 . For example, one region of the resonator 440 in which the slot 441 is formed may mean a boundary region between the resonator 440 and an empty space (eg, the slot 441) formed in the resonator 440. there is. For example, at least one point included in one area of the resonator 440 in which the slot 441 is formed refers to the resonator 440 and an empty space formed in the resonator 440 (eg, the slot 441). It may mean at least one point included in the boundary area of . For example, that a certain component is connected to the slot 441 means that a certain component is connected to at least one point among at least one point included in a region of the resonator 440 in which the slot 441 is formed. can For example, applying power to the slot 441 may mean that power is applied to at least one point included in a region of the resonator 440 in which the slot 441 is formed. For example, checking the impedance of the slot 441 may mean checking the impedance of at least one point included in a region of the resonator 440 in which the slot 441 is formed.

According to various embodiments, the sensor 450 may sense at least one of voltage, current, power, or impedance applied to the resonator 440 . For example, the sensor 450 may sense the impedance of at least one point of the resonator 440 . Although FIG. 4A is shown as including one sensor (eg, sensor 450), sensor 450 may include at least one sensor (eg, a first sensor, and/or a second sensor). can include For example, as shown in FIG. 4A, one sensor (eg, sensor 450) may perform sensing on at least one point of the resonator 440, or a sensor included in the sensor 450 may perform sensing. The first sensor performs sensing on at least one point (eg, at least one first point) of the resonator 440, and the second sensor included in the sensor 450 performs sensing on at least one other point of the resonator 440. Sensing may be performed on one point (eg, at least one second point). For example, the controller 430 may sense at least one of voltage, current, power, or impedance applied to at least one point of the resonator 440 using the sensor 450 .

According to various embodiments, the controller 430 may be the control circuit 312 of FIG. 3 . For example, the controller 430 may control the first inverter 410 and/or the second inverter 420 to apply power to at least one point of the resonator 440 . For example, the controller 430 may control the first inverter 410 to apply the first power to the resonator 440 . For example, the controller 430 may control the second inverter 420 to apply the second power to the resonator 440 . For example, the controller 430 controls the first inverter 410 connected to the first point and the second point of the resonator 440 to apply a first power having a first frequency to the resonator 440 . can do. For example, the first inverter may be connected to a first point and a second point of the resonator 440, and the first point and the second point may be located on opposite sides with the slot 441 interposed therebetween. For example, the controller 430 determines the impedance of the first point and the second point of the resonator 440, to which the first inverter 410 is connected, to the sensor 450 (for example, the sensor 450). It can be confirmed using the first sensor included in). For example, the controller 430 checking the impedance of the slot 441 means that the controller 430 determines the first and second points of the resonator 440 located on opposite sides with the slot 441 interposed therebetween. It can be understood as checking the impedance for According to various embodiments, the controller 430 is configured to apply a second power having a second frequency different from the first frequency to the resonator 440 , at least different from the first and second points of the resonator 440 . The second inverter 420 connected to one point (eg, a third point and a fourth point) may be controlled. For example, the controller 430 determines the impedance of at least one point (eg, a third point and a fourth point) of the resonator 440 to which the second inverter 420 is connected, the sensor 450 ) (eg, the second sensor included in the sensor 450).

Referring to FIG. 4B , the electronic device 101 according to various embodiments includes a first inverter 410, a coupler 451, a converter 452, a phase detector 453, and a slot 441 (eg, , a slot 441 included in the resonator 440 of FIG. 4A). For example, the sensor 450 of FIG. 4A may include the coupler 451, the converter 452, and the phase detector 453 of FIG. 4B.

According to various embodiments, the coupler 451 may connect the first inverter 410 and the resonator 440 . For example, the coupler 451 may be connected to the first inverter 410 . For example, coupler 451 may be connected to resonator 440 . For example, the coupler 451 may be connected to the slot 441 of the resonator 440 . For example, that the coupler 451 is connected to the slot 441 means that the coupler 451 is connected to the first and second points of the resonator 440 located on opposite sides with the slot 441 interposed therebetween. can be understood as being For example, coupler 451 may be connected to converter 452 . For example, the coupler 451 may transfer at least a portion of power provided from the first inverter 410 to the resonator 440 (eg, the slot 441 of the resonator 440). For example, the coupler 451 may transfer at least a portion of power provided from the first inverter 410 to the converter 452 . For example, the coupler 451 may transfer at least a portion of power transmitted from the resonator 440 (eg, the slot 441 of the resonator 440) to the converter 452. For example, the coupler 451 serves as a passage through which power is transferred between the first inverter 410, the resonator 440 (eg, the slot 441 of the resonator 440), and the transformer 452. can do.

According to various embodiments, the converter 452 may receive power from the coupler 451 . For example, converter 452 provides a first power (e.g., a first voltage or a first current) from coupler 451 (e.g., provided to coupler 451 from first inverter 410). at least a portion of power) may be delivered. For example, converter 452 may transmit a second power (e.g., a second voltage or a second current) from coupler 451 (e.g., to resonator 440 (e.g., At least a portion of the power provided to the coupler 451 from the slot 441 may be transferred. For example, the converter 452 may provide a signal obtained by converting power (eg, voltage and/or current) received from the coupler 451 to the phase detector 453 . For example, the converter 452 converts the first power (eg, at least a portion of the power provided from the first inverter 410 to the coupler 451) to the phase detector 453. A second signal obtained by converting the second power (eg, at least a portion of the power provided to the coupler 451 from the resonator 440 (eg, the slot 441 of the resonator 440)) can be provided to the phase detector (453).

According to various embodiments, the phase detector 453 may receive the converted signal from the converter 452 . For example, the phase detector 453 may compare a plurality of converted signals transmitted from the converter 452 to detect a phase difference. For example, the controller 430 may determine the first and second positions of the resonator 440 in the slot 441 of the resonator 440 (eg, located on opposite sides with the slot 441 therebetween). The first impedance at the point) can be identified, and the phase of the first impedance can be detected using the phase detector 453 . For example, the controller 430 uses the phase detector 453 to convert at least a portion of the power provided to the coupler 451 from the first signal (eg, the first inverter 410) to the converter 452. At least a portion of the power provided to the coupler 451 from the second signal (e.g., the resonator 440 (e.g., the slot 441 of the resonator 440)) is converted to the converter 452. ) in the slot 441 of the resonator 440 (e.g., the first point and the second The phase of the impedance at the point) can be detected. The controller 430 uses the sensor 450 (eg, the coupler 451, the converter 452, and the phase detector 453 included in the sensor 450) to detect at least one of the resonator 440. A method of detecting the impedance (or the phase of the impedance) for a point is exemplary, and is not limited thereto. For example, the controller 430 using the sensor 450 (or the phase detector 453) to check the phase of the impedance means that the controller 430 uses the sensor 450 (or the phase detector 453). It may mean checking the slope of the impedance by using For example, when the impedance Z=R+jX, the phase of the impedance can be defined as arctan(X/R). For example, when the impedance Z=R+jX, the slope of the impedance may be defined as X/R. For example, when the impedance Z=R+jX at the resonant frequency, the Q factor may be defined as X/R.

5 is a flowchart illustrating an operation of an electronic device according to various embodiments. 5 will be described with reference to FIGS. 4a, 4b, 6, and 7 . 6 is a diagram illustrating a resonator included in an electronic device according to various embodiments. 7 is a diagram illustrating a resonator included in an electronic device according to various embodiments.

6 is a top view of a resonator 610 included in the electronic device 101 according to various embodiments. For example, a resonator included in the electronic device 101 (eg, the resonator 610 of FIG. 6 , the resonator 1610 of FIG. 16 , or the resonator 2510 of FIG. 25 ) may be configured as a plane. there is. For example, the resonator (eg, the resonator 610 of FIG. 6 , the resonator 1610 of FIG. 16 , or the resonator 2510 of FIG. 25 ) may be formed on a printed circuit board (PCB). can For another example, a resonator included in the electronic device 101 (eg, the resonator 710 of FIG. 7 or the resonator 1710 of FIG. 17 ) may be formed three-dimensionally in space. For example, the resonator (eg, the resonator 710 of FIG. 7 or the resonator 1710 of FIG. 17 ) may be formed in a donut shape. For example, FIG. 6 (eg, resonator 610), FIG. 16 (eg, resonator 1610), or FIG. 25 (eg, resonator 2510) illustrates the resonator of FIG. 7 ( 710), the resonator 1710 of FIG. 17, or the resonator 2510 of FIG. 25 three-dimensionally formed in space) may be viewed from the top. For example, the resonator 610 of FIG. 6 may be the resonator 710 of FIG. 7 , and the resonator 1610 of FIG. 16 may be the resonator 1710 of FIG. 17 . For example, the resonator (eg, the resonator 710 of FIG. 7 or the resonator 1710 of FIG. 17 ) may be formed in a donut shape filled with an inside. For another example, a resonator (eg, resonator 710 in FIG. 7 or resonator 1710 in FIG. 17 ) may include a slot (eg, slot 720 in FIG. 7 or slot 1720 in FIG. 17 ). ) is formed (eg, 740 in FIG. 7 or most of the region in FIG. 17) is formed in a donut shape in which the inside of the resonator is filled, but a part where a slot is not formed (eg, 730 in FIG. 7) is formed. ) may be formed in the form of a tube in which the inside of the resonator is not filled. For example, resonators (e.g., resonator 610 of FIG. 6, resonator 710 of FIG. 7, resonator 1610 of FIG. 16, resonator 1710 of FIG. 17, and resonator 2510 of FIG. 25) ) of slots (eg, slot 620 of FIG. 6 , slot 720 of FIG. 7 , slot 1620 of FIG. 16 , slot 1720 of FIG. 17 , and first slot 2520 of FIG. 25 ) , the second slot 2530) may be formed in the central portion of the resonator. For another example, a resonator (eg, resonator 610 of FIG. 6 , resonator 710 of FIG. 7 , resonator 1610 of FIG. 16 , resonator 1710 of FIG. 17 , and resonator 2510 of FIG. 25 ) )) of slots (eg, slot 620 of FIG. 6 , slot 720 of FIG. 7 , slot 1620 of FIG. 16 , slot 1720 of FIG. 17 , and first slot 2520 of FIG. 25 ). ), the second slot 2530) may be formed in an outer region of the resonator. For example, resonators (e.g., resonator 610 in FIG. 6, resonator 710 in FIG. 7, resonator 1610 in FIG. 16, resonator 1710 in FIG. 17, and resonator 2510 in FIG. 25) ) of slots (eg, slot 620 of FIG. 6 , slot 720 of FIG. 7 , slot 1620 of FIG. 16 , slot 1720 of FIG. 17 , and first slot 2520 of FIG. 25 ) , the second slot 2530) being formed in the outer region of the resonator may mean that the distance between the slot of the resonator and the inner surface of the resonator is greater than the distance between the slot of the resonator and the outer surface of the resonator. . The shape of the resonator (e.g., resonator 610 in FIG. 6, resonator 710 in FIG. 7, resonator 1610 in FIG. 16, resonator 1710 in FIG. 17, and resonator 2510 in FIG. 25) may be As an example, the shape of the resonator is not limited, and those skilled in the art can understand that the embodiments disclosed herein can be applied regardless of the shape of the resonator. For example, the resonator 710 of FIG. 7 and the resonator 1710 of FIG. 17 are illustrated as having at least a portion of an angular shape, but this is exemplary, and the resonator is a loop in which a smooth circular surface is continuous. It may be formed into a shape.

Referring to FIG. 6 , according to various embodiments, the electronic device 101 may include the resonator 610 of FIG. 6 . For example, the resonator 610 may be formed in a loop shape. For example, the resonator 610 may be formed in a loop shape starting from one end 612 of the resonator 610 and extending to the other end 611 . For example, the resonator 610 may form an empty space of the first length 632 between one end 612 and the other end 611 of the resonator 610 . For example, the resonator 610 may include a capacitor in a region between one end 612 and the other end 611 (eg, a region corresponding to an empty space of the first length 632 shown in FIG. 6 ). may be The position of the capacitor included in the resonator 610 is not limited. For example, the resonator 610 has a region other than the region between the one end 612 and the other end 611 (eg, the region corresponding to the empty space of the first length 632 shown in FIG. 6). It may be connected to a capacitor disposed on. For example, it can be understood that capacitors disposed in other regions are included in the resonator 610 . For example, the resonator 610 may resonate by connecting a loop-shaped portion and a capacitor. The description of the shape, empty space, and capacitor of the above-described resonator 610 is the resonator (eg, the resonator 710 of FIG. 7, the resonator 1610 of FIG. 16, and the resonator 1710 of FIG. 17) to be described later. ), and the resonator 2510 of FIG. 25).

According to various embodiments, the resonator 610 may include a slot 620 . For example, the slot 620 may be formed along the loop direction 631 of the resonator 610 . For example, the slot 620 may be formed in a designated shape by a designated length 641 along a loop direction 631 of the resonator 610 . For example, the slot 620 includes a first sub-slot 627 extending in a first direction (eg, a vertical direction in FIG. 6 ) and a second direction different from the first direction (eg, a vertical direction in FIG. 6 ). 6), and a third sub-slot 628 between the first sub-slot 627 and the second sub-slot 629. For example, the third sub-slot 628 may have a curved shape according to the shape of the resonator 610 . For example, the slot 620 includes a first sub-slot 627 having a first length 647, a second sub-slot 629 having a second length 649, and a third length 648. The branch may form a designated length 641 by including the third sub-slot 628 . The length (eg, designated length 641) of the slot (eg, slot 620) and the subslot (eg, first subslot) included in the slot (eg, slot 620) 627, the second sub-slot 629, and the third sub-slot 628 are applicable to the resonators of FIGS. 7, 16, 17, and 25. Those skilled in the art can understand that.

The embodiment of FIG. 5 described below is applicable not only to FIG. 6, but also to the resonators disclosed in FIGS. 16 and 25, and also various types of slots not disclosed in the drawings (eg, in the first direction (eg, For example, those skilled in the art can understand that the embodiment of FIG. 5 is applicable to a resonator including a slot extending in a vertical direction in FIG. 6).

Referring to FIG. 5 , in operation 501, according to various embodiments, the electronic device 101 (eg, the controller 430 of the electronic device 101) applies first power having a first frequency to a resonator. (For example, the first inverter 410 may be controlled to apply the voltage to the resonator 610 of FIG. 6 ). For example, referring to FIG. 6 , the first inverter 410 may be connected to a first point 621 and a second point 622 of the resonator 610 . For example, the first point 621 and the second point 622 of the resonator 610 may be located on opposite sides with the slot 620 of the resonator 610 therebetween. For example, the first point 621 and the second point 622 of the resonator 610 are spaced apart from one end 623 of the slot 620 by a specified distance (eg, the first distance 642). can be located in a given location. The designated distance (eg, the first distance 642) will be described with reference to FIGS. 9A and 9B. Meanwhile, the positions of the first point 621 and the second point 622 are illustrative, and the positions of the first point 621 and the second point 622 are not limited. For example, the electronic device 101 may determine a first frequency of the first power applied by the first inverter 410 . A method of determining the frequency by the electronic device 101 will be described later. For example, the frequency may be a designated value, and in this case, the operation of the electronic device 101 to determine the frequency may be omitted.

In operation 503, according to various embodiments, the electronic device 101 determines a first point (eg, FIG. 621) and at least one impedance for the second point (eg, 622 of FIG. 6) may be checked. For example, referring to FIG. 6 , while the first power is applied to the resonator 610, the electronic device 101 periodically or continuously determines the first point 621 and the second point 622. At least one impedance can be identified. For example, at least one impedance may refer to an impedance confirmed at one point in time or a plurality of impedances measured in time series.

In operation 505, according to various embodiments, the electronic device 101 provides at least one information for a first point (eg, 621 of FIG. 6 ) and a second point (eg, 622 of FIG. 6 ). Based on the impedance, an external object (eg, 1130 or 1140 of FIG. 11 ) adjacent to the electronic device 101 may be identified. For example, the electronic device 101 determines the slope (or phase) of at least one impedance with respect to a first point (eg, 621 of FIG. 6 ) and a second point (eg, 622 of FIG. 6 ). Based on , an external object (eg, 1130 or 1140 of FIG. 11 ) adjacent to the electronic device 101 may be identified. For example, the electronic device 101 determines the slope (or phase) of at least one impedance with respect to a first point (eg, 621 of FIG. 6 ) and a second point (eg, 622 of FIG. 6 ). An external object (eg, 1130 or 1140 in FIG. 11 ) adjacent to the electronic device 101 may be identified based on the change in . For example, the electronic device 101 determines the electronic device 101 based on impedances at a point in time with respect to a first point (eg, 621 of FIG. 6 ) and a second point (eg, 622 of FIG. 6 ). It is possible to check whether an external object (eg, 1130 or 1140 in FIG. 11 ) is disposed adjacent to the device 101 and/or identification information of the external object. A method of identifying an external object (eg, 1130 or 1140 in FIG. 11 ) adjacent to the electronic device 101 will be described later with reference to FIGS. 11, 12a, 12b, 13, and 14 .

8 is a diagram for explaining an operation of an electronic device according to various embodiments.

8 is a graph of the reflection coefficient according to the frequency of power applied to a slot (eg, slot 620 of FIG. 6 ) included in a resonator (eg, 610 of FIG. 6 ) of the electronic device 101 shows

Referring to FIG. 8 , according to various embodiments, a slot (eg, slot 620 of FIG. 6 ) included in a resonator (eg, 610 of FIG. 6 ) of an electronic device 101 has a first When first power having a frequency (eg, 1.13 GHz in FIG. 8) is applied or second power having a second frequency (eg, 2.3 GHz in FIG. 8) is applied, resonance occurs. You can check. For example, the first frequency (eg, 1.13 GHz in FIG. 8 ) and the second frequency (eg, 2.3 GHz in FIG. 8 ) are the resonator of the electronic device 101 (eg, in FIG. 6 610) may be determined according to the length and/or shape of the slot (eg, the slot 620 of FIG. 6). For example, based on the length and/or shape of a slot (eg, the slot 620 of FIG. 6) included in the resonator (eg, 610 of FIG. 6) of the electronic device 101, the electronic The device 101 (eg, the controller 430 of the electronic device 101 ) may determine a frequency of power applied to a slot (eg, the slot 620 of FIG. 6 ). For example, the electronic device 101 transmits power having a frequency designated based on the length and/or shape of the slot (eg, the slot 620 of FIG. 6 ), the slot (eg, the slot 620 of FIG. 6 ) It is possible to control the first inverter 410 to apply to the slot 620 of

9A is a diagram for describing an operation of an electronic device according to various embodiments. 9B is a diagram for describing an operation of an electronic device according to various embodiments. 10 is a diagram for describing an operation of an electronic device according to various embodiments.

9A shows a frequency assigned to a slot 920 (eg, the slot 620 of FIG. 6 ) included in the resonator 910 (eg, the resonator 610 of FIG. 6 ) of the electronic device 101 . It is a diagram showing the current distribution of the resonator 910 when power having is applied. For example, in (a) of FIG. 9A , first power having a first frequency (eg, 1.13 GHz in FIG. 8 ) is applied to a slot 920 included in a resonator 910 of the electronic device 101 . It is a diagram showing the current distribution of the resonator 910 when applied. For example, in (a) of FIG. 9A, at a first point 931 located at a designated distance from one end of the slot 920 and a third position 933 located at a designated distance from the other end of the slot 920. It can be confirmed that the current has a maximum value, and it can be confirmed that the current has a minimum value at the second point 932 located at the center of the slot 920 . For example, in (b) of FIG. 9A , second power having a second frequency (eg, 2.3 GHz in FIG. 8 ) is applied to a slot 920 included in a resonator 910 of the electronic device 101 . It is a diagram showing the current distribution of the resonator 910 when applied. For example, in (b) of FIG. 9A, a first point 941 located at a designated distance from one end of the slot 920, a third point 943 located at the center of the slot 920, and the slot 920 It can be seen that the current has the maximum value at the fifth point 945 located at a designated distance from the other end of the slot 920, and the current has the minimum value at the second point 942 and the fourth point 944 of the slot 920. It can be confirmed that it has

Although not shown, when power having a specified frequency is applied to the slot 920 included in the resonator 910 of the electronic device 101 in a manner similar to (a) and (b) of FIG. 9A, the resonator 910 ) voltage distribution can be obtained.

According to various embodiments, the first point 621 and the second point 622 of the slot 620 included in the resonator 610 of FIG. 6 are the current distribution of the resonator 910 disclosed in FIG. 9A, and Based on the voltage distribution obtained in a similar way, it can be determined. For example, current distribution and voltage distribution of the resonator 910 may be determined according to the length and shape of the slot (eg, 620 in FIG. 6 ), and accordingly, the first inverter 410 of the electronic device 101 A first point (eg, 621 of FIG. 6 ) and a second point (eg, 622 of FIG. 6 ) of the resonator (eg, 610 of FIG. 6 ) to be connected to may be determined.

9B is a diagram illustrating the distribution of an electric field formed around the resonator 910 when power having a specified frequency is applied to the slot 920 included in the resonator 910 of the electronic device 101. For example, in (a) of FIG. 9B , first power having a first frequency (eg, 1.13 GHz in FIG. 8 ) is applied to a slot 920 included in a resonator 910 of the electronic device 101 . It is a diagram showing the distribution of the electric field formed around the resonator 910 when applied. For example, in (a) of FIG. 9B, a first point 931 located at a designated distance from one end of the slot 920 and a third point 933 located at a designated distance from the other end of the slot 920. It can be confirmed that the electric field has a minimum value near it, and it can be confirmed that the electric field has a maximum value near the second point 932 located at the center of the slot 920 . For example, in (b) of FIG. 9B , second power having a second frequency (eg, 2.3 GHz in FIG. 8 ) is applied to a slot 920 included in a resonator 910 of the electronic device 101 . It is a diagram showing the distribution of the electric field formed around the resonator 910 when applied. For example, in (b) of FIG. 9B, a first point 941 located at a designated distance from one end of the slot 920, a third point 943 located at the center of the slot 920, and the slot 920 It can be seen that the electric field has a minimum value around the fifth point 945 located at a designated distance from the other end of the slot 920, and around the second point 942 and the fourth point 944 of the slot 920. It can be seen that the electric field has a minimum value.

10 is a diagram illustrating a distribution 1030 of an electric field formed around the resonator 1010 when power having a specified frequency is applied to the slot 1020 included in the resonator 1010 of the electronic device 101. am. For example, the distribution 1030 of the electric field formed around the resonator 1010 may vary according to the length and/or shape of the slot 1020 included in the resonator 1010 .

11 is a diagram for describing an operation of an electronic device according to various embodiments. 12A is a diagram for describing an operation of an electronic device according to various embodiments. 12B is a diagram for describing an operation of an electronic device according to various embodiments.

FIG. 11 illustrates a case where an external object (eg, 1130 or 1140) exists around the resonator 1110 included in the electronic device 101. For example, the first external object 1130 may be a conductor. For example, the second external object 1140 may be a human body. According to various embodiments, the electronic device 101 (eg, the controller 430 of the electronic device 101) applies power to the slot 1120 formed in the resonator 1110, thereby providing an external object (eg, the controller 430). For example, 1130 or 1140) can be checked. For example, the electronic device 101 determines the type of external object (eg, 1130 or 1140) and/or whether the external object (eg, 1130 or 1140) is getting closer or farther away from the electronic device 101. can determine whether there is

FIG. 12A shows a change in the impedance value measured in the slot 1120 formed in the resonator 1110 as the distance between the external object (eg, 1130 or 1140) of FIG. 11 and the electronic device 101 changes. It is a drawing that represents For example, the electronic device 101 determines at least one impedance for two points (eg, 621 and 622 of FIG. 6 ) of the resonator 1110 located on opposite sides with the slot 1120 therebetween. It can be confirmed, and if this is represented as a graph, Fig. 12a can be obtained. For example, in FIG. 12A, 1201 and 1202 are real numbers of impedance (Z=R+jX) when the first external object 1130 (eg, conductor) moves near the electronic device 101, respectively. It can be a value (R) and an imaginary value (X). For example, in FIG. 12A, 1203 and 1204 are real numbers of impedance (Z=R+jX) when the second external object 1140 (eg, human body) moves near the electronic device 101, respectively. It can be a value (R) and an imaginary value (X). For example, the electronic device 101 may identify an external object (eg, 1130 or 1140) within a designated distance (eg, 10 mm in FIG. 12A) with reference to FIG. 12A.

FIG. 12B shows a change in the reflection coefficient value measured at the slot 1120 formed in the resonator 1110 as the distance between the external object (eg, 1130 or 1140) of FIG. 11 and the electronic device 101 changes. It is a drawing showing that For example, the electronic device 101 has at least one reflection coefficient for two points (eg, 621 and 622 of FIG. 6 ) of the resonator 1110 located on opposite sides with the slot 1120 interposed therebetween. It can be confirmed, and if it is represented as a graph, Fig. 12b can be obtained. For example, (a) of FIG. 12B shows a case in which first power having a first frequency (eg, 1.13 GHz in FIG. 8 ) is applied to the slot 1120 formed in the resonator 1110 . For example, in (a) of FIG. 12B , 1211 may be a reflection coefficient value when the first external object 1130 (eg, a conductor) moves near the electronic device 101 . For example, in (a) of FIG. 12B, 1212 may be a reflection coefficient value when the second external object 1140 (eg, a human body) moves near the electronic device 101. For example, (b) of FIG. 12B shows a case in which second power having a second frequency (eg, 2.3 GHz in FIG. 8 ) is applied to the slot 1120 formed in the resonator 1110 . For example, in (b) of FIG. 12B , 1221 may be a reflection coefficient value when the first external object 1130 (eg, a conductor) moves near the electronic device 101 . For example, in (b) of FIG. 12B, 1222 may be a reflection coefficient value when the second external object 1140 (eg, a human body) moves near the electronic device 101. For example, with reference to FIG. 12B , the electronic device 101 may determine whether an external object (eg, 1130 or 1140) moves away or approaches within a designated distance (eg, 10 mm in FIG. 12A). there is.

13 is a flowchart illustrating an operation of an electronic device according to various embodiments. 13 will be described with reference to FIG. 14 . 14 is a diagram for explaining an operation of an electronic device according to various embodiments.

Referring to FIG. 13 , in operation 1301 , according to various embodiments, the electronic device 101 (eg, the controller 430 of the electronic device 101 ), in a slot (eg, 620 of FIG. 6 ) At least one first impedance for a first point (eg, 621 of FIG. 6 ) and a second point (eg, 622 of FIG. 6 ) of the resonator (eg, 610 of FIG. 6 ) formed thereon. At least one first slope (eg, X/R) of (eg, Z=R+jX) may be identified. For example, the electronic device 101 uses a sensor (eg, 450 in FIG. 4A ) (or a phase detector (eg, 453 in FIG. 4B )) to determine the first point (eg, 450 in FIG. 4B ). 621) and at least one first slope (eg, X of at least one first impedance (eg, Z=R+jX) for a second point (eg, 622 of FIG. 6). /R).

For example, (a) of FIG. 14 shows a first point (eg, 621 of FIG. 6 ) of a resonator (eg, 610 of FIG. 6 ) in which a slot (eg, 620 of FIG. 6 ) is formed. and when the first power having a first frequency (eg, 1.13 GHz in FIG. 8) is applied to a second point (eg, 622 in FIG. 6), an external location located around the electronic device 101 At least one of at least one impedance (eg, Z=R+jX) according to a distance between an object (eg, an external object (eg, 1130 or 1140) of FIG. 11) and the electronic device 101 It is a diagram showing the slope (eg, X / R) of For example, in (a) of FIG. 14, 1411 is a result related to the first external object 1130 (eg, conductor) of FIG. 11, and 1412 is a result related to the second external object 1140 (eg, conductor) of FIG. For example, it may be a result related to the human body). For example, referring to 1411 in (a) of FIG. 14 , the first external object 1130 (eg, a conductor) is within a reference distance (eg, 30 mm in FIG. 14 ) the electronic device 101 As , at least one slope (eg, X/R) of at least one impedance (eg, Z=R+jX) may increase. For example, referring to 1412 in (a) of FIG. 14 , the second external object 1140 (eg, human body) is within a reference distance (eg, 30 mm in FIG. 14 ) of the electronic device 101. As , at least one slope (eg, X/R) of at least one impedance (eg, Z=R+jX) may decrease.

For example, (b) of FIG. 14 shows a first point (eg, 621 of FIG. 6 ) of a resonator (eg, 610 of FIG. 6 ) in which a slot (eg, 620 of FIG. 6 ) is formed. and when second power having a second frequency (eg, 2.3 GHz in FIG. 8 ) is applied to a second point (eg, 622 in FIG. 6 ), an external device located around the electronic device 101 At least one of at least one impedance (eg, Z=R+jX) according to a distance between an object (eg, an external object (eg, 1130 or 1140) of FIG. 11) and the electronic device 101 It is a diagram showing the slope (eg, X / R) of For example, in (b) of FIG. 14, 1421 is a result related to the first external object 1130 (eg, conductor) of FIG. 11, and 1422 is a result related to the second external object 1140 (eg, conductor) of FIG. For example, it may be a result related to the human body). For example, referring to 1421 in (b) of FIG. 14 , the first external object 1130 (eg, a conductor) approaches the electronic device 101 within a reference distance (eg, 30 mm). Accordingly, at least one slope (eg, X/R) of at least one impedance (eg, Z=R+jX) may increase. For example, referring to 1422 in (b) of FIG. 14 , the second external object 1140 (eg, human body) approaches the electronic device 101 within a reference distance (eg, 30 mm). Accordingly, at least one slope (eg, X/R) of at least one impedance (eg, Z=R+jX) may decrease.

In operation 1303, according to various embodiments, the electronic device 101 determines at least one first slope (eg, X/R) and a reference value (eg, X/R) of at least one impedance identified in operation 1301. The first reference value or the second reference value) may be compared. For example, in (a) of FIG. 14 , the reference value may be a first reference value (eg, 420) that is a divergence point between 1411 and 1412 at or below the reference distance (eg, 30 mm). For example, in (b) of FIG. 14 , the reference value may be a second reference value (eg, 480) that is a divergence point between 1421 and 1422 at or below the reference distance (eg, 30 mm).

In operation 1305, according to various embodiments, the electronic device 101 determines that at least one first slope (eg, X/R) of at least one impedance identified in operation 1301 is a reference value (eg, An external object (eg, 1130 in FIG. 11 ) adjacent to the electronic device 101 may be identified as an object of the first type (eg, conductor) based on a value equal to or greater than the first reference value or the second reference value. For example, the electronic device 101 determines that at least one first slope (eg, X/R) of at least one impedance identified in operation 1301 is a reference value (eg, a first reference value or a second reference value). ) or more, and based on an increase in at least one first slope (eg, X / R) of at least one impedance identified in operation 1301, an object of a first type (eg, a conductor) and electrons It can be determined that the distance between devices 101 decreases.

In operation 1307, according to various embodiments, the electronic device 101 determines that at least one first slope (eg, X/R) of at least one impedance identified in operation 1301 is a reference value (eg, An external object (eg, 1140 in FIG. 11 ) adjacent to the electronic device 101 may be identified as a second type (eg, human body) object based on a value less than the first reference value or the second reference value. For example, the electronic device 101 determines that at least one first slope (eg, X/R) of at least one impedance identified in operation 1301 is a reference value (eg, a first reference value or a second reference value). ), and based on an increase in at least one first slope (eg, X/R) of at least one impedance identified in operation 1301, a second type (eg, human body) object and electron It can be determined that the distance between the devices 101 increases.

15 is a flowchart illustrating an operation of an electronic device according to various embodiments. 15 will be described with reference to FIGS. 4 and 6 .

Referring to FIG. 15 , in operation 1501 , according to various embodiments, the electronic device 101 (eg, the controller 430 of the electronic device 101) operates a resonator (eg, 440 of FIG. 4 ). Alternatively, 610 of FIG. 6 has a first power (eg, a first frequency applied to the first point 621 and the second point 622 of the resonator 610 by the first inverter 410). During a period at least partially overlapping a period in which the first power) is applied, second power having a second frequency different from the first frequency is applied to at least one point (eg, 610 in FIG. 6 ) of the resonator. The second inverter 420 may be controlled to apply to 653 and 654 of FIG. 6 . For example, the first inverter 410 may be connected to the first point 621 and the second point 622 of the resonator 610, and the second inverter 420 may be connected to the third point 621 of the resonator 610. Point 653 and fourth point 654 may be connected. For example, the electronic device 101 applies first power (eg, sensing power) having a first frequency to the first point 621 and the second point 622 of the resonator 610 . By controlling the first inverter 410, external objects (eg, 1130 and 1140 in FIG. 11 ) adjacent to the electronic device 101 may be identified, and simultaneously or separately, the third The electronic device ( Wireless power may be transmitted to a wireless power receiver (eg, 195 of FIG. 1 ) located around 101 ). For example, while applying the second power having the second frequency to the third point 653 and the fourth point 654 of the resonator 610, the electronic device 101 periodically The first inverter 410 may be controlled to apply first power having a first frequency different from the second frequency to the first point 621 and the second point 622 . For example, while the electronic device 101 applies second power having a second frequency to the third point 653 and the fourth point 654 of the resonator 610, an event (eg, external When an object detection request event) occurs, a first inverter (1) applies a first power having a first frequency different from the second frequency to the first point 621 and the second point 622 of the resonator 610 ( 410) can be controlled.

In operation 1503, according to various embodiments, while the first power is applied, the electronic device 101 determines at least one impedance of the first point 621 and the second point 622 of the resonator 610. Based on , the external object (eg, 1140 of FIG. 11 ) may be identified as a second type (eg, human body) object.

In operation 1505, according to various embodiments, the electronic device 101 selects an external object (eg, 1140 of FIG. 11 ) adjacent to the electronic device 101 as a second type (eg, human body) object. Based on the confirmation with , it is possible to stop providing the second power having the second frequency applied to the third point 653 and the fourth point 654 of the resonator 610 .

According to various embodiments, the electronic device 101 determines an external object (eg, 1130 of FIG. 11 ) adjacent to the electronic device 101 as an object of the first type (eg, a conductor). Based on this, provision of the second power (eg, power for charging) that was stopped may be resumed.

16 is a diagram illustrating a resonator included in an electronic device according to various embodiments. 17 is a diagram illustrating a resonator included in an electronic device according to various embodiments.

16 is a top view of a resonator 1610 included in the electronic device 101 according to various embodiments. For example, as described above, the resonator 1610 included in the electronic device 101 may be configured as a plane (eg, formed on a printed circuit board (PCB)). For example, FIG. 16 may be a top view of the resonator 1610 configured as a plane. For another example, as described above, the resonator 1610 included in the electronic device 101 (eg, the resonator 1710 of FIG. 17 ) may be three-dimensionally formed in space. For example, FIG. 16 may be a top view of a resonator 1610 (eg, the resonator 1710 of FIG. 17 ) formed three-dimensionally in space. Resonator 1610 (eg, resonator 1710 of FIG. 17 ) in a shape (eg, donut shape, and/or tube shape), and resonator 1610 (eg, resonator 1710 in FIG. 17 ). )), the position of the slot 1620 (eg, the slot 1720 of FIG. 17) has been described above along with the description of FIGS. 6 and 7 . For example, the slot 1620 (eg, the slot 1720 of FIG. 17 ) formed in the resonator 1610 (eg, the resonator 1710 of FIG. 17 ) is For example, it may be formed in the outer region of the resonator 1710 of FIG. 17 . For example, the slot 1620 being formed in the outer region of the resonator 1610 means that the distance between the slot 1620 of the resonator 1610 and the inner surface (eg, 1692) of the resonator 1610 is, It may mean greater than the distance between the slot 1620 of the resonator 1610 and the outer surface (eg, 1691) of the resonator 1610.

Referring to FIG. 16 , according to various embodiments, the electronic device 101 may include the resonator 1610 of FIG. 16 . For example, the resonator 1610 may be formed in a loop shape. For example, the resonator 1610 may be formed in a loop shape starting from one end 1612 of the resonator 1610 and extending to the other end 1611 . For example, the resonator 1610 may form an empty space of the first length 1632 between one end 1612 and the other end 1611 of the resonator 1610 . For example, the resonator 1610 may include a capacitor in a region between one end 1612 and the other end 1611 (eg, a region corresponding to an empty space of the first length 1632 shown in FIG. 16 ). may be The position of the capacitor included in the resonator 1610 is not limited. For example, the resonator 1610 is located in a region other than the region between one end 1612 and the other end 1611 (eg, the region corresponding to the empty space of the first length 1632 shown in FIG. 16). It may be connected to a capacitor disposed on. For example, it can be understood that a capacitor disposed in another region is included in the resonator 1610 . For example, the resonator 1610 may resonate by connecting a loop-shaped portion and a capacitor.

According to various embodiments, the resonator 1610 may include a slot 1620 . For example, the slot 1620 may be formed along a loop direction 1631 of the resonator 1610 . For example, the slot 1620 may be formed in a designated shape by a designated length 1642 along a loop direction 1631 of the resonator 1610 . For example, the slot 1620 includes a first sub-slot starting from one end 1623 of the slot 1620 and extending in a first direction (eg, a horizontal right direction in FIG. 16 ), and A second sub-slot extending in a different second direction (for example, a vertical upward direction in FIG. 16), a third sub-slot between the first sub-slot and the second sub-slot, and a third direction different from the second direction. a fourth sub-slot extending in a direction parallel to the first direction (eg, a horizontal left direction in FIG. 16), a fifth sub-slot between the second sub-slot and the fourth sub-slot, and A sixth sub-slot extending in a fourth direction different from the three directions (eg, a vertical downward direction in FIG. 16, consequently a direction parallel to the second direction) and between the fourth sub-slot and the sixth sub-slot a seventh sub-slot and a slot 1620 extending in a fifth direction different from the fourth direction (eg, as the transverse right direction in FIG. 16 , consequently in a direction parallel to the third direction and the same as the first direction) It may include an eighth subslot ending at the other end 1624 and a ninth subslot between the sixth and eighth subslots. For example, the third sub-slot, fifth sub-slot, seventh sub-slot, and ninth sub-slot included in the slot 1620 may have a curved shape according to the shape of the resonator 1610 . For example, the slot 1620 includes a first subslot having a first length, a second subslot having a second length, a third subslot having a third length, a fourth subslot having a fourth length, A 5th subslot having a 5th length, a 6th subslot having a 6th length, a 7th subslot having a 7th length, an 8th subslot having an 8th length, and a 9th subslot having a 9th length. By including , it is possible to form a designated length 1642 .

Referring to FIG. 16 , the embodiment of FIG. 5 may be applied to the resonator 1610 according to various embodiments.

For example, in the embodiment of FIG. 4 , resonator 440 may be resonator 1610 and slot 441 may be slot 1620 . For example, referring to FIGS. 4 and 16 , the first inverter 410 may be connected to a first point 1621 and a second point 1622 of the resonator 1610 . For example, the first point 1621 and the second point 1622 may be located on opposite sides with the slot 1620 of the resonator 1610 therebetween. For example, the first point 1621 and the second point 1622 of the resonator 1610 are spaced apart from one end 1623 of the slot 1620 by a specified distance (eg, the first distance 1641 ). can be located in a given location. The designated distance (eg, the first distance 1641) will be described with reference to FIGS. 19 and 20 . Meanwhile, the positions of the first point 1621 and the second point 1622 are exemplary, and the positions of the first point 1621 and the second point 1622 are not limited. For example, the second inverter 420 may include at least one point different from the first point 1621 and the second point 1622 of the resonator 1610 (eg, the third point 1653 and the fourth point 1653). point 1654). For example, the fourth point 1654 of the resonator 1610 may be located around one end 1612 of the resonator 1610, and the third point 1653 of the resonator 1610 may be It may be located around the other end 1611.

For example, the electronic device 101 (eg, the controller 430 of the electronic device 101) may use the first inverter 410 to apply first power having a first frequency to the resonator 1610. You can control it. For example, the electronic device 101 may determine the magnitude of the first frequency of the first power applied by the first inverter 410 . A method of determining the size of the frequency by the electronic device 101 will be described later.

For example, the electronic device 101 may check at least one impedance of the first point 1621 and the second point 1622 while the first power is applied to the resonator 1610 . For example, while the first power is applied to the resonator 1610, the electronic device 101 periodically or continuously checks at least one impedance of the first point 1621 and the second point 1622. can

For example, the electronic device 101 may determine an external object (eg, FIG. 11 ) adjacent to the electronic device 101 based on at least one impedance of the first point 1621 and the second point 1622 . 1130 or 1140 of) can be confirmed. For example, the electronic device 101 may determine an external object adjacent to the electronic device 101 based on a slope (or phase) of at least one impedance with respect to the first point 1621 and the second point 1622. For example, 1130 or 1140 of FIG. 11) can be checked. For example, the electronic device 101 may, based on a change in the slope (or phase) of at least one impedance with respect to the first point 1621 and the second point 1622, externally adjacent to the electronic device 101. An object (eg, 1130 or 1140 in FIG. 11 ) may be identified. A method of identifying an external object (eg, 1130 or 1140 in FIG. 11 ) adjacent to the electronic device 101 will be described later with reference to FIGS. 22 , 23 , and 24 .

18 is a diagram for describing an operation of an electronic device according to various embodiments.

18 is a graph of the reflection coefficient according to the frequency of power applied to a slot (eg, slot 1620 of FIG. 16 ) included in a resonator (eg, 1610 of FIG. 16 ) of the electronic device 101 shows

Referring to FIG. 18 , according to various embodiments, a slot (eg, slot 1620 of FIG. 16 ) included in a resonator (eg, 1610 of FIG. 16 ) of an electronic device 101 has a first When the first power having a frequency (eg, 333 MHz in FIG. 18) is applied or the second power having a second frequency (eg, 668 MHz in FIG. 18) is applied, it can be confirmed that resonance occurs. there is. For example, the first frequency (eg, 333 MHz in FIG. 18 ) and the second frequency (eg, 668 MHz in FIG. 18 ) are the resonator (eg, 1610 in FIG. 16 ) of the electronic device 101 . It may be determined according to the length and/or shape of the slot included in (eg, the slot 1620 of FIG. 16). For example, based on the length and/or shape of a slot (eg, the slot 1620 of FIG. 16 ) included in the resonator (eg, 1610 of FIG. 16 ) of the electronic device 101, the electronic The device 101 (eg, the controller 430 of the electronic device 101) may determine a frequency of power applied to a slot (eg, the slot 1620 of FIG. 16 ). For example, the electronic device 101 transmits power having a frequency designated based on the length and/or shape of the slot (eg, the slot 1620 of FIG. 16 ) to the slot (eg, the slot 1620 of FIG. 16 ). The first inverter 410 may be controlled to apply to the slot 1620 of

19 is a diagram for describing an operation of an electronic device according to various embodiments. 20 is a diagram for describing an operation of an electronic device according to various embodiments. 21 is a diagram for describing an operation of an electronic device according to various embodiments.

19 shows a frequency assigned to a slot 1920 (eg, the slot 1620 of FIG. 16 ) included in the resonator 1910 (eg, the resonator 1610 of FIG. 16 ) of the electronic device 101 . It is a diagram showing the current distribution of the resonator 1910 when power having is applied. For example, in (a) of FIG. 19 , first power having a first frequency (eg, 333 MHz in FIG. 18 ) is applied to a slot 1920 included in a resonator 1910 of the electronic device 101 . It is a diagram showing the current distribution of the resonator 1910 when For example, in (a) of FIG. 19, at a first point 1931 located at a designated distance from one end of the slot 1920 and a third position 1933 located at a designated distance from the other end of the slot 1920. It can be confirmed that the current has a maximum value, and it can be confirmed that the current has a minimum value at the second point 1932 located at the center of the slot 1920 . For example, in (b) of FIG. 19 , second power having a second frequency (eg, 668 MHz in FIG. 18 ) is applied to the slot 1920 included in the resonator 1910 of the electronic device 101 . It is a diagram showing the current distribution of the resonator 1910 when For example, in (b) of FIG. 19 , a first point 1941 located at a designated distance from one end of the slot 1920, a third point 1943 located at the center of the slot 1920, and a slot 1920 It can be seen that the current has the maximum value at the fifth point 1945 located at a designated distance from the other end of the slot 1920, and the current has the minimum value at the second point 1942 and the fourth point 1944 of the slot 1920. It can be confirmed that it has

Although not shown, when power having a specified frequency is applied to the slot 1920 included in the resonator 1910 of the electronic device 101 in a manner similar to (a) and (b) of FIG. 19 , the resonator 1910 ) voltage distribution can be obtained.

According to various embodiments, the first point 1621 and the second point 1622 of the slot 1620 included in the resonator 1610 of FIG. 16 are the current distribution of the resonator 1910 disclosed in FIG. 19, and Based on the voltage distribution obtained in a similar way, it can be determined. For example, current distribution and voltage distribution of the resonator 1910 may be determined according to the length and shape of the slot (eg, 1620 of FIG. 16 ), and accordingly, the first inverter 410 of the electronic device 101 A first point (eg, 1621 of FIG. 16 ) and a second point (eg, 1622 of FIG. 16 ) of the resonator (eg, 1610 of FIG. 16 ) to be connected to may be determined.

20 shows a frequency assigned to a slot 2020 (eg, slot 1620 of FIG. 16 ) included in a resonator 2010 (eg, resonator 1610 of FIG. 16 ) of the electronic device 101 . It is a diagram showing the distribution of the electric field formed around the resonator 2010 when power having is applied. For example, in (a) of FIG. 20 , first power having a first frequency (eg, 333 MHz in FIG. 18 ) is applied to a slot 2020 included in a resonator 2010 of the electronic device 101 . It is a diagram showing the distribution of the electric field formed around the resonator 2010 when For example, in (a) of FIG. 20, a first point 2031 located at a designated distance from one end of the slot 2020 and a third point 2033 located at a designated distance from the other end of the slot 2020. It can be confirmed that the electric field has a minimum value near it, and it can be confirmed that the electric field has a maximum value near the second point 2032 located at the center of the slot 2020. For example, in (b) of FIG. 20 , second power having a second frequency (eg, 668 MHz in FIG. 18 ) is applied to the slot 2020 included in the resonator 2010 of the electronic device 101 . It is a diagram showing the distribution of the electric field formed around the resonator 2010 when For example, in (b) of FIG. 20 , a first point 2041 located at a designated distance from one end of the slot 2020, a third point 2043 located at the center of the slot 2020, and a slot 2020 It can be confirmed that the electric field has a minimum value around the fifth point 2045 located at a designated distance from the other end of the slot 2020, and around the second point 2042 and the fourth point 2044 of the slot 2020. It can be seen that the electric field has a minimum value.

21 is a diagram illustrating a distribution 2130 of an electric field formed around a resonator 2110 when power having a specified frequency is applied to a slot 2120 included in the resonator 2110 of the electronic device 101. am. For example, the distribution 2130 of the electric field formed around the resonator 2110 may vary according to the length and/or shape of the slot 2120 included in the resonator 2110 .

22 is a diagram for describing an operation of an electronic device according to various embodiments.

22 is a slot formed in a resonator (eg, 1610 of FIG. 16 ) as the distance between an external object (eg, external objects 1130 and 1140 of FIG. 11 ) and the electronic device 101 changes. It is a diagram showing that the phase of the impedance measured at (eg, 1620 in FIG. 16) changes. For example, in FIG. 22 , frequencies (eg, 324 MHz, 333 MHz, and 340 MHz) of power applied to a slot (eg, 1620 of FIG. 16 ) formed in a resonator (eg, 1610 of FIG. 16 ) Accordingly, it can be confirmed that the phase of the impedance measured in the slot (eg, 1620 of FIG. 16 ) changes.

23 is a diagram for explaining an operation of an electronic device according to various embodiments. 23 will be described with reference to FIGS. 13 and 16 .

Referring to FIG. 16 , the embodiment of FIG. 13 may be applied to the resonator 1610 according to various embodiments.

According to various embodiments, the electronic device 101 (eg, the controller 430 of the electronic device 101) may include a resonator (eg, FIG. At least one first impedance (eg, Z=R+jX) for a first point (eg, 1621 of FIG. 16 ) and a second point (eg, 1622 of FIG. 16 ) of 1610 of FIG. 16 ) At least one first slope (eg, X / R) of ) may be identified. For example, the electronic device 101 uses a sensor (eg, 450 in FIG. 4A ) (or a phase detector (eg, 453 in FIG. 4B )) to determine the first point (eg, 450 in FIG. 4B ). 16 of 16) and at least one first slope of at least one first impedance (eg, Z=R+jX) (eg, X /R).

For example, FIG. 23 shows a first point (eg, 1621 of FIG. 16 ) and a second point of a resonator (eg, 1610 of FIG. 16 ) in which a slot (eg, 1620 of FIG. 16 ) is formed. When first power having a first frequency (eg, 333 MHz in FIG. 18) is applied to (eg, 1622 of FIG. 16), an external object (eg, 333 MHz in FIG. 18) located around the electronic device 101 , at least one slope of at least one impedance (eg, Z=R+jX) according to a distance between the external object (eg, 1130 or 1140) of FIG. 11 and the electronic device 101 (eg, For example, it is a diagram showing X/R). For example, in FIG. 23 , 2341 is a result related to a first external object (eg, the first external object 1130 (eg, conductor) in FIG. 11 ), and 2342 is a result related to a second external object (eg, a conductor). For example, it may be a result related to the second external object 1140 (eg, human body) of FIG. 11 . For example, referring to 2342 in FIG. 23 , the second external object (eg, the second external object 1140 of FIG. 11 (eg, human body)) is at a reference distance (eg, in FIG. 23 ). 50 mm), at least one slope (eg, X/R) of at least one impedance (eg, Z=R+jX) may decrease as the electronic device 101 is approached.

For example, the electronic device 101 includes a first point (eg, 1621 of FIG. 16 ) of a resonator (eg, 1610 of FIG. 16 ) in which a slot (eg, 1620 of FIG. 16 ) is formed and At least one slope (eg, X/R) of at least one impedance with respect to the second point (eg, 1622 of FIG. 16 ) may be compared with a reference value. For example, in FIG. 23 , the reference value may be a first reference value (eg, 390) that is a divergence point between 2341 and 2342 at or below the reference distance (eg, 50 mm).

For example, the electronic device 101 includes a first point (eg, 1621 of FIG. 16 ) of a resonator (eg, 1610 of FIG. 16 ) in which a slot (eg, 1620 of FIG. 16 ) is formed and At least one slope (eg, X/R) of at least one impedance with respect to the second point (eg, 1622 of FIG. 16) is a reference value (eg, a first reference value (eg, 390)). ), an external object (eg, 1130 of FIG. 11 ) adjacent to the electronic device 101 may be identified as a first type (eg, conductor) object.

For example, the electronic device 101 includes a first point (eg, 1621 of FIG. 16 ) of a resonator (eg, 1610 of FIG. 16 ) in which a slot (eg, 1620 of FIG. 16 ) is formed and At least one slope (eg, X/R) of at least one impedance with respect to the second point (eg, 1622 of FIG. 16) is a reference value (eg, a first reference value (eg, 390)). ), an external object (eg, 1140 of FIG. 11 ) adjacent to the electronic device 101 may be identified as a second type (eg, human body) object. For example, the electronic device 101 includes a first point (eg, 1621 of FIG. 16 ) of a resonator (eg, 1610 of FIG. 16 ) in which a slot (eg, 1620 of FIG. 16 ) is formed and At least one slope (eg, X / R) of at least one impedance with respect to the second point (eg, 1622 of FIG. 16 ) is less than a reference value (eg, a first reference value or a second reference value), and , based on the increase of at least one first slope (eg, X/R) identified in operation 1301, the distance between the second type (eg, human body) and the electronic device 101 is can be judged to increase.

Referring to FIG. 16 , the embodiment of FIG. 15 may be applied to the resonator 1610 according to various embodiments.

For example, the electronic device 101 (eg, the controller 430 of the electronic device 101) supplies a first power (eg, 440 in FIG. 4 or 1610 in FIG. 16 ) to a resonator. For example, a period at least partially overlapping a period during which the first power having a first frequency applied to the first point 1621 and the second point 1622 of the resonator 1610 by the first inverter 410 is applied. while applying the second power having a second frequency different from the first frequency to at least one point (eg, 1653 and 1654 of FIG. 16 ) of the resonator (eg, 1610 of FIG. 16 ). (420) can be controlled. For example, the first inverter 410 may be connected to the first point 1621 and the second point 1622 of the resonator 1610, and the second inverter 420 may be connected to a third point of the resonator 1610. It can be connected to point 1653 and fourth point 1654 . For example, the electronic device 101 applies first power (eg, power for sensing) having a first frequency to the first point 1621 and the second point 1622 of the resonator 1610. By controlling the first inverter 410, external objects (eg, 1130 and 1140 in FIG. 11 ) adjacent to the electronic device 101 may be identified, and simultaneously or separately, the third The electronic device ( Wireless power may be transmitted to a wireless power receiver (eg, 195 of FIG. 1 ) located around 101 ). For example, while applying the second power having the second frequency to the third point 1653 and the fourth point 1654 of the resonator 1610, the electronic device 101 periodically The first inverter 410 may be controlled to apply the first power having a first frequency different from the second frequency to the first point 1621 and the second point 1622 . For example, while the electronic device 101 applies the second power having the second frequency to the third point 1653 and the fourth point 1654 of the resonator 1610, an event (eg, external A first inverter to apply a first power having a first frequency different from the second frequency to the first point 1621 and the second point 1622 of the resonator 1610 as an object detection request event) occurs ( 410) can be controlled.

For example, the electronic device 101, while the first power is applied, based on at least one impedance of the first point 1621 and the second point 1622 of the resonator 1610, the external object ( For example, 1140 of FIG. 11) may be identified as an object of the second type (eg, human body).

For example, based on identifying an external object (eg, 1140 in FIG. 11 ) adjacent to the electronic device 101 as an object of the second type (eg, a human body), Supply of the second power having the second frequency applied to the third point 1653 and the fourth point 1654 of the resonator 1610 may be stopped.

According to various embodiments, the electronic device 101 determines an external object (eg, 1130 of FIG. 11 ) adjacent to the electronic device 101 as an object of the first type (eg, a conductor). Based on this, provision of the second power (eg, power for charging) that was stopped may be resumed.

24 is a diagram for explaining an operation of an electronic device according to various embodiments. 24 will be described with reference to FIG. 16 .

24 shows a resonator (eg, 1130 or 1140 of FIG. 11 ) and the electronic device 101 in a state in which the distance is fixed (eg, 50 mm, 30 mm, or 10 mm). , as the frequency of the power applied to the slot (eg, 1620 of FIG. 16) formed in the slot (eg, 1610 of FIG. 16) changes, the slot (eg, 1610 of FIG. 16) formed in the resonator (eg, It is a diagram showing that the slope value of the impedance measured at 1620 of 16) changes. For example, the electronic device 101 has two points (eg, 1610 in FIG. 16 ) of resonators (eg, 1610 in FIG. 16 ) positioned on opposite sides of the slot (eg, 1620 in FIG. 16 ). At least one impedance for 1621 and 1622 of FIG. 16 can be checked, and if the slope of the checked at least one impedance is graphed, FIG. 24 can be obtained.

According to various embodiments, in (a) of FIG. 24, when the frequency changes around 370 MHz, the distance between the external object (eg, 1130 or 1140 of FIG. 11) and the electronic device 101 becomes closer. Accordingly, it can be seen that the slope value of the impedance measured in the slot (eg, 1620 of FIG. 16 ) formed in the resonator (eg, 1610 of FIG. 16 ) changes more rapidly. For example, referring to FIG. 24(a) , the electronic device 101 shows the amount of power applied to a slot (eg, 1620 of FIG. 16 ) formed in a resonator (eg, 1610 of FIG. 16 ). By sweeping the frequency around 370 MHz, it may be determined whether the distance between the external object (eg, 1130 or 1140 in FIG. 11 ) and the electronic device 101 is getting closer or further. For example, the electronic device 101 reduces the frequency of power applied to a slot (eg, 1620 of FIG. 16 ) formed in a resonator (eg, 1610 of FIG. 16 ) in a range greater than 370 MHz. A first change in at least one slope value of at least one impedance measured in a slot (eg, 1620 of FIG. 16 ) for one period and a frequency of power applied to the slot (eg, 1620 of FIG. 16 ) A second change in at least one slope value of at least one impedance measured in a slot (eg, 1620 in FIG. 16 ) during a second period of decreasing in a range smaller than 370 MHz may be compared, and the second change may be compared with the first change. 2 , it may be determined that the distance between the external object (eg, 1130 or 1140 in FIG. 11 ) and the electronic device 101 is getting closer.

According to various embodiments, in (a) of FIG. 24, when the frequency changes around 300 MHz, the distance between the external object (eg, 1130 or 1140 of FIG. 11) and the electronic device 101 increases. Accordingly, it can be seen that the slope value of the impedance measured in the slot (eg, 1620 of FIG. 16 ) formed in the resonator (eg, 1610 of FIG. 16 ) changes more rapidly. For example, referring to FIG. 24(a) , the electronic device 101 shows the amount of power applied to a slot (eg, 1620 of FIG. 16 ) formed in a resonator (eg, 1610 of FIG. 16 ). By sweeping the frequency around 300 MHz, it may be determined whether the distance between the external object (eg, 1130 or 1140 in FIG. 11 ) and the electronic device 101 is getting closer or further. For example, the electronic device 101 reduces the frequency of power applied to a slot (eg, 1620 of FIG. 16 ) formed in a resonator (eg, 1610 of FIG. 16 ) in a range greater than 300 MHz. A first change in at least one slope value of at least one impedance measured in a slot (eg, 1620 of FIG. 16 ) for one period and a frequency of power applied to the slot (eg, 1620 of FIG. 16 ) A second change in at least one slope value of at least one impedance measured in a slot (eg, 1620 in FIG. 16) during a second period of decreasing in a range of less than 300 MHz may be compared, and the second change may be compared with the first change. 2 , it may be determined that the distance between the external object (eg, 1130 or 1140 in FIG. 11 ) and the electronic device 101 increases.

25 is a diagram illustrating a resonator included in an electronic device according to various embodiments.

25 is a top view of a resonator 2510 included in the electronic device 101 according to various embodiments. For example, referring to FIG. 25 , the electronic device 101 may include a resonator 2510 in which a plurality of slots (eg, 2520 and 2530) are formed. For example, as described above, the resonator 2510 included in the electronic device 101 may be configured as a plane (eg, formed on a printed circuit board (PCB)). For example, FIG. 25 may be a top view of the resonator 2510 configured as a plane. For another example, as described above, the resonator 2510 included in the electronic device 101 may be three-dimensionally formed in space. For example, FIG. 25 may be a top view of the resonator 2510 formed three-dimensionally in space. 6 and 7 for the shape of the resonator 2510 (eg, donut shape, and/or tube shape) and the location of slots (eg, 2520 and 2530) formed in the resonator 2510. It has been described above with an explanation.

Referring to FIG. 25 , the electronic device 101 may include a resonator 2510 according to various embodiments. For example, the resonator 2510 may be formed in a loop shape. For example, the resonator 2510 may be formed in a loop shape starting from one end 2512 of the resonator 2510 and extending to the other end 2511 . For example, the resonator 2510 may form an empty space of the first length 2542 between one end 2512 and the other end 2511 of the resonator 2510 . For example, the resonator 2510 may include a capacitor in a region between one end 2512 and the other end 2511 (eg, a region corresponding to an empty space of the first length 2542 shown in FIG. 25). may be The position of the capacitor included in the resonator 2510 is not limited. For example, the resonator 2510 has a region other than the region between one end 2512 and the other end 2511 (eg, the region corresponding to the empty space of the first length 2542 shown in FIG. 25). It may be connected to a capacitor disposed on. For example, it may be understood that a capacitor disposed in another region is included in the resonator 2510 . For example, the resonator 2510 may resonate by connecting a loop-shaped portion and a capacitor.

According to various embodiments, the resonator 2510 may include a first slot 2520 and a second slot 2530 . For example, the first slot 2520 may be formed along a loop direction 2541 of the resonator 2510 . For example, the first slot 2520 may be formed in a designated shape by a designated length 2551 along a loop direction 2541 of the resonator 2510 . For example, the first slot 2520 includes a first sub-slot starting from one end 2523 of the first slot 2520 and extending in a first direction (eg, a vertical upward direction in FIG. 25 ); It may include a second sub-slot extending in a second direction different from the first direction (eg, a horizontal left direction in FIG. 25 ), and a third sub-slot between the first sub-slot and the second sub-slot. For example, the second sub-slot included in the first slot 2520 may have a curved shape according to the shape of the resonator 2510 . For example, the first slot 2520 includes a first sub-slot having a first length, a second sub-slot having a second length, and a third sub-slot having a third length, so that the designated length 2551 ) can be formed. For example, the second slot 2530 may be formed along a loop direction 2541 of the resonator 2510 . For example, the second slot 2530 may be formed in a designated shape by a designated length 2561 along a loop direction 2541 of the resonator 2510 . For example, the second slot 2530 includes a fourth sub-slot starting from one end 2533 of the second slot 2530 and extending in a fourth direction (eg, a horizontal left direction in FIG. 25 ); A fifth subslot extending in a fifth direction different from the fourth direction (eg, a vertical upward direction in FIG. 25 ) and a sixth subslot between the fourth and fifth subslots. For example, the sixth sub-slot included in the second slot 2530 may have a curved shape according to the shape of the resonator 2510 . For example, the second slot 2530 includes a 4th subslot having a 4th length, a 5th subslot having a 5th length, and a 6th subslot having a 6th length, so that the designated length 2561 ) can be formed.

26 shows a block diagram of an electronic device, in accordance with various embodiments. 27 shows a block diagram of an electronic device, in accordance with various embodiments. 26 and 27 will be described with reference to FIG. 25 .

Referring to FIG. 26 , an electronic device 101 according to various embodiments includes a controller 2640, a first inverter 2610, a second inverter 2620, a third inverter 2630, a resonator 2650, and a sensor 2660. For example, the resonator 2650 may be the first resonator 230 or the second resonator 240 of FIG. 2 . For example, the resonator 2650 of FIG. 26 may be the resonator 2510 of FIG. 25 . For example, the resonator 2650 of FIG. 26 may include a first slot 2651 and a second slot 2652 . For example, the first slot 2651 and the second slot 2652 of FIG. 26 may be the first slot 2520 and the second slot 2530 of FIG. 25 , respectively. For example, the sensor 2660 of FIG. 26 may include a first sensor, a second sensor, and a third sensor. For example, a first sensor included in the sensor 2660 may sense information related to the first slot 2651 of the resonator 2650 . For example, a second sensor included in the sensor 2660 may sense information related to the second slot 2652 of the resonator 2650 . For example, a third sensor included in the sensor 2660 may sense information about an area different from an area including the first slot 2651 and the second slot 2651 of the resonator 2650 . According to another example, the sensor 2660 may include a single sensor, and the configuration of the sensor 2660 is not limited.

For example, referring to FIGS. 25 and 26 , the first inverter 2610 may apply power to the first slot 2651 (eg, the first slot 2520). For example, the first inverter 2610 may be connected to the first point 2521 and the second point 2522 of the resonator 2510 of FIG. 25 . For example, the first point 2521 and the second point 2522 of the resonator 2510 in FIG. 25 are the first slot 2520 in FIG. 25 (eg, the first slot 2651 in FIG. 26 ). ) can be located on opposite sides with a gap between them.

For example, referring to FIGS. 25 and 26 , the second inverter 2620 may apply power to the second slot 2652 (eg, the second slot 2530). For example, the second inverter 2620 may be connected to the third point 2531 and the fourth point 2532 of the resonator 2510 of FIG. 25 . For example, the third point 2531 and the fourth point 2532 of the resonator 2510 of FIG. 25 are the second slot 2530 of FIG. 25 (eg, the second slot 2652 of FIG. 26). ) can be located on opposite sides with a gap between them.

For example, referring to FIGS. 25 and 26 , the third inverter 2630 may apply power to the resonator 2650 (eg, the resonator 2510). For example, the third inverter 2630 is different from the first point 2521, the second point 2522, the third point 2531, and the fourth point 2532 of the resonator 2510 of FIG. , power may be applied to at least one point (eg, a fifth point 2573 and a sixth point 2574) of the resonator 2510.

Referring to FIG. 27 , an electronic device 101 according to various embodiments includes a first inverter 2610, a first coupler 2711, a first converter 2712, a first phase detector 2713, a first Slot 2651 (for example, the first slot 2651 included in the resonator 2650 of FIG. 26), the second inverter 2620, the second coupler 2721, the second converter 2722, the second A phase detector 2723 and a second slot 2652 (eg, the first slot 2652 included in the resonator 2650 of FIG. 26) may be included. For example, the sensor 2660 of FIG. 26 includes the first coupler 2711, the first converter 2712, the first phase detector 2713, the second coupler 2721, and the second converter 2722 of FIG. ), and a second phase detector 2723. For example, the first sensor included in the sensor 2660 of FIG. 26 may include the first coupler 2711, the first converter 2712, and the first phase detector 2713 of FIG. 27 . For example, the second sensor included in the sensor 2660 of FIG. 26 may include the second coupler 2721, the second converter 2722, and the second phase detector 2723 of FIG. 27 . 27 included in the sensor 2660 of FIG. 26, the first coupler 2711, the first converter 2712, the first phase detector 2713, the second coupler 2721, the second converter 2722, And each connection form and each function of the second phase detector 2723 can be understood with reference to the description of FIGS. 4A and 4B. For example, the electronic device 101 may include a first sensor included in the sensor 2660 of FIG. 26 (eg, the first coupler 2711 of FIG. 27 , the first converter 2712, and the first phase Information on the first slot 2651 (eg, the first slot 2520 of FIG. 26 ) may be sensed using the detector 2713 . For example, the electronic device 101 may include a second sensor included in the sensor 2660 of FIG. 26 (eg, the second coupler 2721 of FIG. 27 , the second converter 2722, and the second phase Information on the second slot 2652 (eg, the second slot 2530 of FIG. 26 ) may be sensed using the detector 2723 .

25, 26, and 27, according to various embodiments, the embodiment of FIG. 5, the embodiment of FIG. 13, and the embodiment of FIG. 15 may be applied to the resonator 2510, and a plurality of slots ( For example, for the embodiment of FIG. 5, the embodiment of FIG. 13, and the embodiment of FIG. 15 applied to the resonator 2510 in which 2520 and 2530 are formed, the embodiment of FIG. 5 and the embodiment of FIG. 13 described above. And it can be understood by referring to the description of the embodiment of FIG. 15 .

28 is a flowchart illustrating an operation of an electronic device according to various embodiments. 28 will be described with reference to FIG. 25 .

Referring to FIG. 28 , in operation 2801, according to various embodiments, the electronic device 101 (eg, the controller 430 of the electronic device 101) supplies first power having a first frequency to a resonator. (For example, the first inverter 2610 may be controlled to apply the voltage to the resonator 2510 of FIG. 25 ). For example, referring to FIG. 25 , a first inverter 2610 may be connected to a first point 2521 and a second point 2522 of the resonator 2510 . For example, the first point 2521 and the second point 2522 of the resonator 2510 may be located on opposite sides with the first slot 2520 of the resonator 2510 therebetween. For example, the first point 2521 and the second point 2522 of the resonator 2510 are a specified distance (eg, the first distance 2552) from one end 2523 of the first slot 2520. It may be located at a spaced apart position. Meanwhile, the positions of the first point 2521 and the second point 2522 are exemplary, and the positions of the first point 2521 and the second point 2522 are not limited. For example, the electronic device 101 may determine a first frequency of the first power applied by the first inverter 2610 . For example, the frequency may be a designated value, and in this case, the operation of the electronic device 101 to determine the frequency may be omitted.

In operation 2803, according to various embodiments, the electronic device 101 sets a first point (eg, FIG. 2521 of 25) and at least one first impedance for the second point (eg, 2522 of FIG. 25) may be checked. For example, referring to FIG. 25 , while the first power is applied to the resonator 2510, the electronic device 101 periodically or continuously generates a first point 2521 and a second point 2522 At least one first impedance may be identified. For example, the at least one first impedance may refer to an impedance confirmed at one point in time or a plurality of impedances measured in time series. While the electronic device 101 is applying a first power to a resonator (eg, the resonator 2510 of FIG. 25 ), a first point (eg, 2521 of FIG. 25 ) and a second point (eg, the resonator 2510 of FIG. 25 ) , 2522 of FIG. 25) means that while the first power is applied to the resonator (eg, the resonator 2510 of FIG. This may mean checking at least one first slope of at least one first impedance with respect to 2521 of FIG. 25) and a second point (eg, 2522 of FIG. 25).

Referring to FIG. 28 , in operation 2805, according to various embodiments, the electronic device 101 (eg, the controller 430 of the electronic device 101) supplies second power having a second frequency to the resonator. (For example, the second inverter 2620 may be controlled to apply the voltage to the resonator 2510 of FIG. 25 ). For example, referring to FIG. 25 , the second inverter 2620 may be connected to a third point 2531 and a fourth point 2532 of the resonator 2510 . For example, the third point 2531 and the fourth point 2532 of the resonator 2510 may be located on opposite sides with the second slot 2530 of the resonator 2510 therebetween. For example, the third point 2531 and the fourth point 2532 of the resonator 2510 are a designated distance (eg, a second distance 2562) from one end 2533 of the second slot 2530. It may be located at a spaced apart position. Meanwhile, the positions of the third point 2531 and the fourth point 2532 are illustrative, and the positions of the third point 2531 and the fourth point 2532 are not limited. For example, the electronic device 101 may determine a second frequency of the second power applied by the second inverter 2620 . For example, the frequency may be a designated value, and in this case, the operation of the electronic device 101 to determine the frequency may be omitted.

In operation 2807, according to various embodiments, the electronic device 101 determines a third point (eg, the resonator 2510 of FIG. At least one second impedance for 2531 of 25) and the fourth point (eg, 2532 of FIG. 25) may be checked. For example, referring to FIG. 25 , while the second power is applied to the resonator 2510, the electronic device 101 periodically or continuously determines the third and fourth points 2531 and 2532. At least one second impedance may be identified. For example, the at least one second impedance may refer to an impedance confirmed at one point in time or a plurality of impedances measured in time series. While the second power is applied to the resonator of the electronic device 101 (eg, the resonator 2510 of FIG. 25 ), a third point (eg, 2531 of FIG. 25 ) and a fourth point (eg, the resonator 2510 of FIG. 25 ) , 2532 of FIG. 25) means that while the second power is applied to the resonator (eg, the resonator 2510 of FIG. 25), a third point (eg, It may mean checking at least one second slope of at least one second impedance with respect to 2531 of FIG. 25) and a fourth point (eg, 2532 of FIG. 25).

In operation 2809, according to various embodiments, the electronic device 101 determines the first point (eg, 2521 of FIG. 25) and the second point (eg, 2522 of FIG. 25) of the resonator 2510. Based on at least one first impedance for , and at least one second impedance for a third point (eg, 2531 in FIG. 25 ) and a fourth point (eg, 2532 in FIG. 25 ), An external object (eg, 1130 or 1140 in FIG. 11 ) adjacent to the device 101 may be identified. For example, the electronic device 101 may generate at least one first point (eg, 2521 of FIG. 25 ) and a second point (eg, 2522 of FIG. 25 ) of the resonator 2510 . At least one first slope (or first phase) of the impedance, and at least one second point for the third point (eg, 2531 in FIG. 25 ) and the fourth point (eg, 2532 in FIG. 25 ). An external object (eg, 1130 or 1140 of FIG. 11 ) adjacent to the electronic device 101 may be identified based on at least one second slope (or second phase) of the impedance. For example, the electronic device 101 may generate at least one first point (eg, 2521 of FIG. 25 ) and a second point (eg, 2522 of FIG. 25 ) of the resonator 2510 . A change (eg, first change) of at least one first slope (or first phase) of impedance, and a third point (eg, 2531 in FIG. 25 ) and a fourth point (eg, FIG. Based on a change (eg, second change) of at least one second slope (or second phase) of at least one second impedance with respect to 2532 of 25, an external object adjacent to the electronic device 101 ( For example, 1130 or 1140 of FIG. 11) can be checked. For example, the electronic device 101 has an impedance at a point in time with respect to a first point (eg, 2521 in FIG. 25 ) and a second point (eg, 2522 in FIG. 25 ) of the resonator 2510 . Based on , it is possible to check whether an external object (eg, 1130 or 1140 in FIG. 11 ) is disposed adjacent to the electronic device 101 and/or identification information of the external object. For example, the electronic device 101 has an impedance at a point in time with respect to a third point (eg, 2531 in FIG. 25 ) and a fourth point (eg, 2532 in FIG. 25 ) of the resonator 2510 . Based on , it is possible to check whether an external object (eg, 1130 or 1140 in FIG. 11 ) is disposed adjacent to the electronic device 101 and/or identification information of the external object. For example, the electronic device 101 may provide one viewpoint (eg, 2521 in FIG. 25 ) and a second point (eg, 2522 in FIG. 25 ) of the resonator 2510 . For example, a first impedance at a first time point, and one time point (eg, 2531 in FIG. 25 ) and a fourth point (eg, 2532 in FIG. 25 ). Based on the second impedance at the second viewpoint), whether an external object (eg, 1130 or 1140 in FIG. 11 ) is disposed adjacent to the electronic device 101 and/or identification information of the external object may be checked. In this case, the first viewpoint and the second viewpoint may be the same or different.

Those skilled in the art can understand that the various embodiments described in this specification can be organically applied to each other within the applicable range.

According to various embodiments, the electronic device (eg, the electronic device 101) may include a first slot (eg, 441 in FIG. 4 , 620 in FIG. 6 , 720 in FIG. 7 , 1620 in FIG. 16 , FIG. 1720, 2520 in FIG. 25, or 2650 in FIG. 26) is formed (eg, 440 in FIG. 4, 610 in FIG. 6, 710 in FIG. 7, 1610 in FIG. 16, 1710 in FIG. 17, or FIG. 2510 in FIG. 25), a first point (e.g., 621 in FIG. 6, 1621 in FIG. 16, or 2521 in FIG. 25) and a second point (e.g., 622 in FIG. 6) on the first slot of the resonator. A first inverter (eg, 410 in FIG. 4 or 2610 in FIG. 26 ) connected to 1622 in FIG. 16 or 2522 in FIG. 25 and configured to provide power to the first slot for foreign matter detection - the The first point and the second point on the first slot are located on opposite sides with the first slot interposed therebetween, and the resonator is different from the first point and the second point connected to the first inverter. A second inverter (eg, 653 and 654 in FIG. 6 , 1653 and 1654 in FIG. 16 , or 2573 and 2574 in FIG. 25 ) configured to transfer power to the resonator ( For example, 420 of FIG. 4A or 2630 of FIG. 26 ) and a controller (eg, 430 of FIG. 4 or 2640 of FIG. 26 ), wherein the controller includes a first power having a first frequency. Controls the first inverter to apply to the first slot, and while the first power is applied to the first slot, checks at least one first impedance for the first point and the second point, , Based on the at least one first impedance, an external object (eg, 1130 or 1140 in FIG. 11 ) adjacent to the electronic device is identified, and a period during which the first power is applied to the resonator and During at least a partial overlapping period, second power having a second frequency different from the first frequency is supplied to the external wireless power receiver (eg, 195) wirelessly at the third and fourth points. It may be set to control the second inverter to apply to.

According to various embodiments, the first point and the second point connected to the first inverter may be one end of the first slot (eg, 623 in FIG. 6 , 1624 in FIG. 16 , or 2523 in FIG. 25 ). ) may be located at a position spaced apart from the designated first distance.

According to various embodiments, the resonator is formed in a loop shape, and the first slot is along a loop direction (eg, 631 in FIG. 6 , 1631 in FIG. 16 , or 2541 in FIG. 25 ) of the resonator. It may be formed in a designated shape by a designated length. The first slot of the designated form includes a first sub-slot (eg, 627 in FIG. 6 ) extending in a first direction and a second sub-slot (eg, 627 in FIG. 6 ) extending in a second direction different from the first direction. , 629 of FIG. 6), and a third subslot (eg, 628 of FIG. 6) between the first subslot and the second subslot.

According to various embodiments, a distance between one end of the first slot (eg, 1623 of FIG. 16 ) and one end of the resonator (eg, 1612 of FIG. 16 ), and the other end of the first slot (eg, 1612 of FIG. 16 ). For example, a distance between 1624 of FIG. 16 ) and the other end of the resonator (eg, 1611 of FIG. 16 ) may be less than or equal to the specified second distance.

According to various embodiments, a distance between the first slot and an inner surface of the resonator may be greater than a distance between the first slot and an outer surface of the resonator.

According to various embodiments, the electronic device 101 may include a first sensor (eg, 450 in FIG. 4A , or A first sensor 2660 in FIG. 26) is further included, and the first sensor includes a first coupler (eg, 451 in FIG. 4B or 2711 in FIG. 27) connecting the first inverter and the resonator; A first converter (eg, 452 of FIG. 4B or 2712 of FIG. 27 ) connected to the first coupler, and a first phase detector (eg, 453 of FIG. 4B or 2712 of FIG. 27 ) connected to the first converter. 2713 of FIG. 27) may be included. The controller may check at least one first slope of the at least one first impedance with respect to the first point and the second point using the first phase detector.

According to various embodiments, the controller checks at least one first slope of the at least one first impedance, and determines that the at least one first slope is greater than or equal to a first reference value, and the external object (eg For example, 1130 of FIG. 11) is identified as a first type (eg, conductor) object, and the external object (eg, FIG. 1140 of) may be set to identify an object of the second type (eg, a human body).

According to various embodiments of the present disclosure, the controller determines whether the first type of object and the electronic device are connected based on the fact that the at least one first slope is equal to or greater than the first reference value and the at least one first slope increases. It is determined that the distance of is decreasing, the at least one first slope is less than the first reference value, and based on the fact that the at least one first slope is increasing, the distance between the second type of object and the electronic device is determined. It may be set to determine that the distance increases.

According to various embodiments, the controller determines that the external object (eg, 1140 of FIG. 11 ) is of a second type (eg, based on the at least one first impedance checked while the first power is applied). In response to being identified as an object (for example, a human body), provision of the second power may be stopped.

According to various embodiments, the electronic device 101 is connected to the third point (eg, 2531 of FIG. 25 ) and the fourth point (eg, 2532 of FIG. 25 ) of the resonator to form the resonator. A third inverter (eg, 2620 of FIG. 26 ) configured to provide power may be further included. The third point and the fourth point of the resonator may be positioned opposite to each other with the second slot (eg, 2530 in FIG. 25 or 2652 in FIG. 26 ) of the resonator interposed therebetween. The controller controls the third inverter to apply a third power having a third frequency to the resonator, and while the third power is applied to the resonator, at least for the third point and the fourth point One second impedance may be identified, and based on the at least one first impedance and the at least one second impedance, the external object adjacent to the electronic device may be further configured to be identified.

According to various embodiments, the electronic device 101 may include a second sensor (for example, the second sensor 2660 of FIG. 26 ) for checking the at least one second impedance with respect to the third point and the fourth point. sensor), and the second sensor includes a second coupler (eg, 2721 of FIG. 27 ) connecting the second inverter and the resonator, and a second converter (eg, 2721 of FIG. 27 ) connected to the second coupler. For example, 2722 of FIG. 27), and a second phase detector (eg, 2723 of FIG. 27) connected to the second converter. The controller may check at least one second slope of the at least one second impedance with respect to the third point and the fourth point using the second phase detector.

According to various embodiments, a resonator (eg, 440 in FIG. 4 , 610 in FIG. 6 , 710 in FIG. 7 , 1610 in FIG. 16 , 17 in FIG. 17 ) included in an electronic device (eg, the electronic device 101 ). 1710 in or 2510 in FIG. 25 ) is a first slot (eg, 441 in FIG. 4 , 620 in FIG. 6 , 720 in FIG. 7 , 1620 in FIG. 16 , 1720 in FIG. 17 , 2520 in FIG. 25 , or 2650 in FIG. 26), the resonator is formed in a loop shape, and the first slot follows a loop direction (eg, 631 in FIG. 6, 1631 in FIG. 16, or 2541 in FIG. 25) of the resonator. is formed in a specified shape by a specified length according to a specified length, and the electronic device is configured to apply a first power having a first frequency to the resonator at a first point (eg, 621 of FIG. , 1621 in FIG. 16 or 2521 in FIG. 25) and a first inverter (eg, 2522 in FIG. 25) connected to a second point (eg, 622 in FIG. 6, 1622 in FIG. 16, or 2522 in FIG. Control 410 of (or 2610 of FIG. 26) - the first point and the second point are located on opposite sides with the first slot interposed therebetween -, check while the first power is applied to the resonator Based on the at least one first impedance for the first point and the second point, an external object (eg, 1130 or 1140 in FIG. 11 ) adjacent to the electronic device is identified, and the resonator During a period at least partially overlapping a period in which the first power is applied, second power having a second frequency different from the first frequency is supplied to provide power to an external wireless power receiver (eg, 195). third points and fourth points (eg, 653 and 654 of FIG. 6 and 1653 and 1654 of FIG. 16 ) of the resonator different from the first and second points connected to the first inverter to apply , or a second inverter (eg, 420 in FIG. 4A or 2630 in FIG. 26 ) connected to 2573 and 2574 in FIG. 25 .

According to various embodiments, the first point and the second point connected to the first inverter may be one end of the first slot (eg, 623 in FIG. 6 , 1624 in FIG. 16 , or 2523 in FIG. 25 ). ) may be located at a position spaced apart from the designated first distance.

According to various embodiments, the first slot of the designated shape includes a first sub-slot (eg, 627 in FIG. 6 ) extending in a first direction and a second sub-slot extending in a second direction different from the first direction. A subslot (eg, 629 of FIG. 6 ) and a third subslot (eg, 628 of FIG. 6 ) between the first subslot and the second subslot may be included.

According to various embodiments, a distance between one end of the first slot (eg, 1623 of FIG. 16 ) and one end of the resonator (eg, 1612 of FIG. 16 ), and the other end of the first slot (eg, 1612 of FIG. 16 ). For example, a distance between 1624 of FIG. 16 ) and the other end of the resonator (eg, 1611 of FIG. 16 ) may be less than or equal to the specified second distance.

According to various embodiments, a distance between the first slot and an inner surface of the resonator may be greater than a distance between the first slot and an outer surface of the resonator.

According to various embodiments, the resonator further includes a second slot (eg, 2530 in FIG. 25 or 2652 in FIG. 26 ), and the second slot extends along the loop direction of the resonator to the first slot. It is formed at a position different from that of the resonator, and the distance between one end of the resonator (eg, 2512 in FIG. 25) and the first slot (eg, 2520 in FIG. 25) is the other end of the resonator (eg, 2520 in FIG. 2511) and the second slot (eg, 2530 of FIG. 25).

According to various embodiments, the electronic device may apply third power having a third frequency different from the first frequency of the first power to the resonator at a third point of the resonator (eg, FIG. 25 ). 2531) and a third inverter (eg, 2620 in FIG. 26 ) connected to a fourth point (eg, 2532 in FIG. 25 )—the third point and the fourth point are the second located on opposite sides with a slot therebetween-, the at least one first impedance with respect to the first point and the second point, identified while the first power is applied to the resonator, and the resonator with the The external object adjacent to the electronic device may be further configured to be identified based on at least one second impedance with respect to the third point and the fourth point, which is identified while the third power is applied.

Electronic devices according to various embodiments disclosed in this document may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. An electronic device according to an embodiment of the present document is not limited to the aforementioned devices.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise. In this document, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A Each of the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish a given component from other corresponding components, and may be used to refer to a given component in another aspect (eg, importance or order) is not limited. A (e.g., first) component is said to be "coupled" or "connected" to another (e.g., second) component, with or without the terms "functionally" or "communicatively." When mentioned, it means that the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logical blocks, parts, or circuits. can be used as A module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document provide one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (eg, the program 140) including them. For example, a processor (eg, the processor 120 ) of a device (eg, the electronic device 101 ) may call at least one command among one or more instructions stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' only means that the storage medium is a tangible device and does not contain a signal (e.g. electromagnetic wave), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

According to one embodiment, the method according to various embodiments disclosed in this document may be included and provided in a computer program product. Computer program products may be traded between sellers and buyers as commodities. A computer program product is distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play Store ^TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) online, directly between smart phones. In the case of online distribution, at least part of the computer program product may be temporarily stored or temporarily created in a device-readable storage medium such as a manufacturer's server, an application store server, or a relay server's memory.

According to various embodiments, each component (eg, module or program) of the above-described components may include a single object or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. there is. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component among the plurality of components prior to the integration. . According to various embodiments, the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

Claims (18)

In electronic devices,
a resonator having a first slot;
A first inverter connected to a first point and a second point on the first slot of the resonator and configured to provide power to the first slot for foreign matter detection - the first point and the second point on the first slot is located on the opposite side with the first slot interposed therebetween-,
a second inverter connected to a third point and a fourth point of the resonator different from the first point and the second point connected to the first inverter and configured to transfer power to the resonator; and
including a controller, the controller comprising:
Controlling the first inverter to apply a first power having a first frequency to the first slot;
Checking at least one first impedance with respect to the first point and the second point while the first power is applied to the first slot;
Identifying an external object adjacent to the electronic device based on the at least one first impedance,
During a period at least partially overlapping with a period in which the first power is applied to the resonator, second power having a second frequency different from the first frequency is supplied to an external wireless power receiver wirelessly to the third frequency. set to control the second inverter to apply to a point and the fourth point,
electronic device.
According to claim 1,
The first point and the second point connected to the first inverter are located at positions spaced apart from one end of the first slot by a designated first distance,
electronic device.
According to claim 1,
The resonator is formed in a loop shape,
The first slot is formed in a designated shape by a designated length along the loop direction of the resonator—the first slot of the designated shape includes a first sub-slot extending in a first direction and a second sub-slot extending in a first direction and a second slot different from the first direction. a second sub-slot extending in a direction, and a third sub-slot between the first sub-slot and the second sub-slot;
electronic device.
According to claim 1,
The distance between one end of the first slot and one end of the resonator, and the distance between the other end of the first slot and the other end of the resonator are less than or equal to a specified second distance,
electronic device.
According to claim 1,
The distance between the first slot and the inner surface of the resonator is greater than the distance between the first slot and the outer surface of the resonator,
electronic device.
According to claim 1,
a first sensor for checking the at least one first impedance with respect to the first point and the second point;
The first sensor includes a first coupler connecting the first inverter and the resonator, a first converter connected to the first coupler, and a first phase detector connected to the first converter,
The controller,
Checking at least one first slope of the at least one first impedance with respect to the first point and the second point using the first phase detector,
electronic device.
According to claim 1,
The controller,
Checking at least one first slope of the at least one first impedance,
Identifying the external object as a first type object based on the at least one first slope being greater than or equal to a first reference value;
Based on that the at least one first slope is less than a first reference value, the external object is set to be identified as a second type object.
electronic device.
According to claim 7,
The controller,
determining that the distance between the first type object and the electronic device decreases based on the at least one first slope being greater than or equal to the first reference value and the at least one first slope increasing;
The at least one first slope is less than the first reference value, and based on the increase of the at least one first slope, it is set to determine that the distance between the second type object and the electronic device increases ,
electronic device.
According to claim 1,
The controller,
Set to stop providing the second power in response to the external object being identified as a second type object based on the at least one first impedance identified while the first power is applied.
electronic device.
According to claim 1,
a third inverter connected to a third point and a fourth point of the resonator and configured to provide power to the resonator;
The third point and the fourth point of the resonator are located on opposite sides with the second slot of the resonator therebetween,
The controller,
Controlling the third inverter to apply a third power having a third frequency to the resonator;
Checking at least one second impedance with respect to the third point and the fourth point while the third power is applied to the resonator;
Further configured to identify the external object adjacent to the electronic device based on the at least one first impedance and the at least one second impedance.
electronic device.
According to claim 10,
Further comprising a second sensor for checking the at least one second impedance with respect to the third point and the fourth point,
The second sensor includes a second coupler connecting the second inverter and the resonator, a second converter connected to the second coupler, and a second phase detector connected to the second converter,
The controller,
Checking at least one second slope of the at least one second impedance with respect to the third point and the fourth point using the second phase detector,
electronic device.
In the resonator included in the electronic device,
including a first slot;
The resonator is formed in a loop shape,
The first slot is formed in a designated shape by a designated length along the loop direction of the resonator,
The electronic device,
Controls a first inverter connected to a first point and a second point of the resonator so as to apply a first power having a first frequency to the resonator for detecting foreign matter, wherein the first point and the second point are Located on the opposite side with the first slot interposed therebetween-,
Identifying an external object adjacent to the electronic device based on at least one first impedance for the first point and the second point, which is identified while the first power is applied to the resonator;
Applying second power having a second frequency different from the first frequency to provide power to an external wireless power receiver during a period at least partially overlapping a period in which the first power is applied to the resonator; configured to control a second inverter connected to a third point and a fourth point of the resonator different from the first point and the second point connected to the first inverter;
resonator.
According to claim 12,
The first point and the second point connected to the first inverter are located at positions spaced apart from one end of the first slot by a designated first distance,
resonator.
According to claim 12,
The first slot of the designated form is between a first sub-slot extending in a first direction and a second sub-slot extending in a second direction different from the first direction, and between the first sub-slot and the second sub-slot. Including the third subslot of
resonator.
According to claim 12,
The distance between one end of the first slot and one end of the resonator, and the distance between the other end of the first slot and the other end of the resonator are less than or equal to a specified second distance,
resonator.
According to claim 12,
The distance between the first slot and the inner surface of the resonator is greater than the distance between the first slot and the outer surface of the resonator,
resonator.
According to claim 12,
Further comprising a second slot,
The second slot is formed at a different position from the first slot along the loop direction of the resonator,
The distance between one end of the resonator and the first slot is greater than the distance between the other end of the resonator and the second slot,
resonator.
18. The method of claim 17,
The electronic device,
Control a third inverter connected to a third point and a fourth point of the resonator to apply a third power having a third frequency different from the first frequency of the first power to the resonator - the third point and the fourth point is located on the opposite side with the second slot interposed therebetween;
The at least one first impedance for the first point and the second point, which is checked while the first power is applied to the resonator, and the third power, which is checked while the third power is applied to the resonator. Further configured to identify the external object adjacent to the electronic device based on the at least one second impedance for the third point and the fourth point.
resonator.

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