WO2018155881A1

WO2018155881A1 - Wireless power transmitter, electronic device receiving power wirelessly, and method for operating same

Info

Publication number: WO2018155881A1
Application number: PCT/KR2018/002066
Authority: WO
Inventors: 여성구; 김창용; 이준현; 권상욱; 박성범; 박재현
Original assignee: 삼성전자 주식회사
Priority date: 2017-02-22
Filing date: 2018-02-20
Publication date: 2018-08-30
Also published as: KR102392887B1; KR20180097111A

Abstract

A wireless power transmitter according to various embodiments of the present invention can comprise a plurality of patch antennas, a coil and a processor. The processor can control such that an electronic device is detected, the plurality of patch antennas and/or the coil is selected as a power transmission circuit for transmitting power for charging the electronic device, and power is transmitted by means of the plurality of patch antennas and/or the coil in accordance with the selection.

Description

Wireless power transmitter, electronic device for wirelessly receiving power and method of operation thereof

Various embodiments of the present invention relate to a wireless power transmission apparatus for wirelessly transmitting power, an electronic device for wirelessly receiving power, and a method of operating the same.

For many people in modern times, portable digital communication devices have become an essential element. Consumers want to be provided with various high quality services they want anytime and anywhere. In addition, due to the IoT (Internet of Thing), various sensors, home appliances, and communication devices that exist in our lives are being networked into one. In order to operate the various sensors smoothly, a wireless power transmission system is required.

Wireless power transmission includes magnetic induction, magnetic resonance, and electromagnetic waves. Magnetic induction or magnetic resonance is advantageous for charging an electronic device located at a relatively short distance from a wireless power transmission device. The electromagnetic wave method is more advantageous for long distance power transmission of several m to the magnetic induction or the magnetic resonance method. Electromagnetic wave method is mainly used for long distance power transmission, and can locate power receiver in remote place and transmit power most efficiently.

The position of the wireless power transmitter is mainly fixed, and thus the distance from the wireless power transmitter to the electronic device is frequently changed. For example, a user may have an electronic device, such as a mobile device, be located close to the wireless power transmission device, or may be located far from the wireless power transmission device.

If the wireless power transmitter performs charging according to one charging method, a problem may occur that charging is performed at a relatively low efficiency according to the distance between the wireless power transmitter and the electronic device. For example, when the wireless power transmitter uses an electromagnetic wave method that is advantageous for long distance power transmission, the electromagnetic wave method should be used even when the electronic device is in close proximity. However, when the electronic device is in close proximity, the induction method or the resonance method may have higher transmission efficiency.

Various embodiments of the present invention can provide a wireless power transmission apparatus and an operation method thereof, including a power transmission circuit of the electromagnetic wave method for the long-distance transmission, and a power transmission circuit of the induction or resonance method for the short-range transmission. According to various embodiments of the present disclosure, an electronic device including an electromagnetic wave type power reception circuit for remote transmission and an induction type or resonance type power reception circuit for short range transmission may be provided.

According to various embodiments of the present disclosure, an apparatus for transmitting power wirelessly may include a plurality of patch antennas; coil; And a processor, wherein the processor detects an electronic device, selects at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device, and selects the selection. According to at least one of the plurality of patch antennas or the coil, it can be controlled to transmit the power.

An electronic device according to various embodiments of the present disclosure may include a plurality of patch antennas, coils, communication circuits, and processors, and the processor may be configured to power at least one of the plurality of patch antennas or the coils from a wireless power transmitter. Is selected as a power receiving circuit for receiving, and information about the selected power receiving circuit is transmitted to the wireless power transmitter through the communication circuit, and at least one of the plurality of patch antennas or the coils according to the selection. Through one, it may be controlled to receive the power.

According to various embodiments of the present disclosure, an operation method of a wireless power transmission apparatus including a plurality of patch antennas and coils may include: detecting an electronic device; Selecting at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device; And controlling to transmit the power through at least one of the plurality of patch antennas or the coils according to the selection.

According to various embodiments of the present disclosure, a method of operating an electronic device including a plurality of patch antennas and coils may include: a power receiving circuit for receiving power from a wireless power transmitter from at least one of the plurality of patch antennas or the coils; Selecting to; Transmitting information about the selected power receiving circuit to the wireless power transmitter; And receiving the power through at least one of the plurality of patch antennas or the coils according to the selection.

According to various embodiments of the present disclosure, a wireless power transmitter and a method of operating the same may be provided that transmit power according to an electromagnetic wave method, a resonance method, or an induction method according to a distance. According to various embodiments of the present disclosure, not only the distance but also the charging scheme supported by the electronic device, information related to power received by the electronic device, charging related information of the electronic device, wireless power transmission efficiency, wireless power transmission related protocol, and obstacle location An apparatus for transmitting power and a method of operating the same may be provided in accordance with at least one of electromagnetic waves, resonance, and induction. According to various embodiments of the present disclosure, an electronic device and a method of operating the same may be provided that receive power according to an electromagnetic wave method, a resonance method, or an induction method according to a distance. According to various embodiments of the present disclosure, not only the distance but also the charging scheme supported by the electronic device, information related to power received by the electronic device, charging related information of the electronic device, wireless power transmission efficiency, wireless power transmission related protocol, and obstacle location An electronic device and a method of operating the same may be provided that receive power according to at least one of an electromagnetic wave method, a resonance method, and an induction method according to various information such as whether or not.

1 is a conceptual diagram illustrating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

2 is a conceptual diagram illustrating a wireless power transmission system according to various embodiments of the present disclosure.

3A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

3B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

4A is a block diagram of a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

4B is a block diagram of a wireless power transmission apparatus according to various embodiments of the present disclosure.

4C is a block diagram of a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

4D is a block diagram of a wireless power transmission apparatus according to various embodiments of the present disclosure.

5 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.

6A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

6B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

7A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

7B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

7C is a diagram illustrating a user interface for inputting a charging method selection of an electronic device according to various embodiments of the present disclosure.

8A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

8B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

9 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.

10A is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.

10B is a conceptual diagram illustrating an arrangement of a wireless power transmitter and a living body according to various embodiments of the present disclosure.

11 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.

12 is a view illustrating a user interface for inducing a change in a charging scheme of a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.

13 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.

14 illustrates information associated with a charging scheme displayed on an electronic device according to various embodiments of the present disclosure.

15 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.

16A to 16C are conceptual views illustrating a charging method change process according to various embodiments of the present disclosure.

17 is a flowchart illustrating an operation method of a wireless power transmitter and a plurality of electronic devices according to various embodiments of the present disclosure.

18 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.

19 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.

20A is a conceptual diagram illustrating a charging of an electronic device of a wireless power transmitter according to various embodiments of the present disclosure.

20B and 20C illustrate conceptual diagrams for describing RF wave formation for a plurality of positions according to various embodiments of the present disclosure.

21 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure.

22A to 22F illustrate conceptual diagrams for describing an arrangement of a wireless power transmission apparatus according to various embodiments of the present disclosure.

23 is a conceptual diagram illustrating a criterion for determining near-field charging and far-field charging according to various embodiments of the present disclosure.

24A is a plan view illustrating a position of a coil and patch antenna array according to various embodiments of the present disclosure.

FIG. 24B is a first side view of the coil and the patch antenna array viewed in a first direction to describe a position of the coil and patch antenna array according to various embodiments of the present disclosure; FIG.

24C is a perspective view illustrating a position of a coil and a patch antenna array according to various embodiments of the present disclosure.

24D illustrates a second side view, viewed from a second direction, for explaining the position of the coil and patch antenna array according to various embodiments of the present disclosure.

24E illustrates an RF wave formed by a patch antenna array according to various embodiments of the present invention.

24F illustrates a magnetic field formed by a coil in accordance with various embodiments of the present invention.

25 is a conceptual diagram illustrating a position of a coil and patch antenna array according to various embodiments of the present disclosure.

Hereinafter, various embodiments of the present disclosure will be described with reference to the accompanying drawings. The examples and terms used herein are not intended to limit the techniques described in this document to specific embodiments, but should be understood to include various modifications, equivalents, and / or alternatives to the examples. In connection with the description of the drawings, similar reference numerals may be used for similar components. Singular expressions may include plural expressions unless the context clearly indicates otherwise. In this document, expressions such as "A or B" or "at least one of A and / or B" may include all possible combinations of items listed together. Expressions such as "first," "second," "first," or "second," etc. may modify the components, regardless of order or importance, to distinguish one component from another. Used only and do not limit the components. When any (eg first) component is said to be "connected" or "connected" to another (eg second) component, the other component is said other The component may be directly connected or connected through another component (eg, a third component).

In this document, "configured to" is modified to have the ability to "suitable," "to," "to," depending on the circumstances, for example, hardware or software. Can be used interchangeably with "made to", "doing", or "designed to". In some situations, the expression “device configured to” may mean that the device “can” together with other devices or components. For example, the phrase “processor configured (or configured to) perform A, B, and C” may be implemented by executing a dedicated processor (eg, an embedded processor) to perform its operation, or one or more software programs stored in a memory device. It may mean a general purpose processor (eg, a CPU or an application processor) capable of performing the corresponding operations.

The wireless power transmitter or electronic device according to various embodiments of the present disclosure may be, for example, a smartphone, a tablet PC, a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a workstation, It may include at least one of a server, a PDA, a portable multimedia player (PMP), an MP3 player, a medical device, a camera, and a wearable device. Wearable devices may be accessory (e.g. watches, rings, bracelets, anklets, necklaces, eyeglasses, contact lenses, or head-mounted-devices (HMDs), textiles or clothing integrated (e.g. electronic clothing), And may include at least one of a body-attachable (eg, skin pad or tattoo), or bio implantable circuit In certain embodiments, a wireless power transmitter or electronic device may be, for example, a television, a digital DVD (DVD). player, audio, refrigerator, air conditioner, cleaner, oven, microwave, washing machine, air purifier, set-top box, home automation control panel, security control panel, media box, game console, electronic dictionary, electronic key, camcorder Or at least one of an electronic picture frame.

In another embodiment, the wireless power transmission device or electronic device may include a variety of medical devices (e.g., various portable medical devices (such as blood glucose meters, heart rate monitors, blood pressure meters, or body temperature meters), magnetic resonance angiography (MRA), MRI ( magnetic resonance imaging (CT), computed tomography (CT), imagers, or ultrasounds), navigation devices, global navigation satellite systems (GNSS), event data recorders (EDRs), flight data recorders (FDRs), automotive infotainment Devices, ship electronics (e.g. ship navigation devices, gyro compasses, etc.), avionics, security devices, vehicle head units, industrial or household robots, drones, ATMs in financial institutions, POS point of sales, or Internet of Things devices (e.g. light bulbs, sensors, sprinkler devices, fire alarms, thermostats, street lights, toasters, exercise equipment, hot water tanks, heaters, boilers, etc.) Also it may include one. According to some embodiments, a wireless power transmission device or electronic device is a part of a furniture, building / structure or automobile, an electronic board, an electronic signature receiving device, a projector, or a variety of measurement devices (eg : Water, electricity, gas, or radio wave measuring instrument). In various embodiments, the wireless power transmission device or electronic device may be flexible or a combination of two or more of the various devices described above. The wireless power transmission device or the electronic device according to the embodiment of the present document is not limited to the above-described devices. In this document, the term user may refer to a person who uses an electronic device or a wireless power transmission device or a device (eg, an artificial intelligence electronic device) that uses an electronic device.

The apparatus 100 for transmitting power wirelessly may include a first power transmission circuit 101 and a second power transmission circuit 102. The first power transmission circuit 101 may be implemented by, for example, a power transmission circuit by an induction method. When implemented with a power transmission circuit by an induction method, the first power transmission circuit 101 may be, for example, a power source, a DC-AC converter circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, at least one Coils, communication modulation and demodulation circuits, and the like. At least one capacitor may form a resonant circuit together with at least one coil. The first power transmission circuit 101 may be implemented in a manner defined in a wireless power consortium (WPC) standard (or Qi standard). The first power transmission circuit 101 may be implemented with, for example, a power transmission circuit by a resonance method. When implemented as a power transmission circuit by a resonance method, the first power transmission circuit 101 may include, for example, a power source, a DC-AC converter circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, and at least one Coils, out-band communication circuits (eg, Bluetooth low energy (BLE) communication circuits), and the like. At least one capacitor and at least one coil may constitute a resonant circuit. The first power transmission circuit 101 may be implemented in a manner defined in the Alliance for Wireless Power (A4WP) standard (or, the air fuel alliance (AFA) standard). The first power transmission circuit 101 may include a coil capable of generating the induction magnetic field 130 when a current flows according to a resonance method or an induction method. According to an embodiment, the first power transmission circuit 101 may include both a power transmission circuit by an induction method and a power transmission circuit by a resonance method.

The second power transmission circuit 102 may be implemented as a power transmission circuit by, for example, an electromagnetic wave method. The second power transmission circuit 102 is, for example, a power source, a DC-AC converter circuit, an amplifier circuit, a distribution circuit, a phase shifter, an antenna array for power transmission including a plurality of patch antennas, an out-band communication module. (Eg, BLE communication module). Each of the plurality of patch antennas may form a radio frequency (RF) wave.

For example, when the electronic device 150 is located away from the wireless power transmitter 100 by a first distance X1, the wireless power transmitter 100 may transmit power through the first power transmitter circuit 101. It may transmit to the electronic device 150. The magnetic field 130 generated from the coil included in the first power transmission circuit 101 may be transmitted to the electronic device 150. Accordingly, the transmission of the power 130 through the coil may include a magnetic field (via the coil). 130 may be referred to as generating. The magnetic field 130 may change in size with time. In addition, transmitting power through the coil may be referred to as transferring energy through the coil. The electronic device 150 may include a coil, and the induced electromotive force may be generated in the coil by the magnetic field 130 whose size is changed according to the time generated in the vicinity. The process of generating induced electromotive force may be referred to as the electronic device 150 receiving power or energy through a coil. When the first distance (X1) is separated, the wireless power transmission apparatus 100 may determine that the power is transmitted through the first power transmission circuit 101 according to the induction method or the resonance method, or the electronic device ( 150 may decide.

For example, when the electronic device 150 is located away from the wireless power transmitter 100 by a second distance X2, the wireless power transmitter 100 may transmit power through the second power transmitter circuit 102. It may transmit to the electronic device 150. The RF wave 131 generated from the plurality of patch antennas included in the second power transmission circuit 102 may be transmitted to the electronic device 150. Accordingly, transmitting power through the plurality of patch antennas may include a plurality of patches. It may be referred to as generating an RF wave 131 through two patch antennas. The RF wave 131 may change in size with time. In addition, transmitting power through the plurality of patch antennas may be referred to as transferring energy through the plurality of patch antennas. The formation of the RF wave 131 will be described in more detail with reference to FIG. 2. The electronic device 150 may include a plurality of patch antennas for reception, and the patch antenna may generate a current or a voltage by the RF wave 131 whose size is changed according to a time generated in the vicinity. The process of generating current or voltage by the plurality of patch antennas may be referred to as the electronic device 150 receiving power or energy through the plurality of patch antennas. When the second distance (X2) is separated by, the wireless power transmission apparatus 100 may determine that the power is transmitted through the second power transmission circuit 102 according to the electromagnetic wave method, or the electronic device 150 You can also decide.

According to various embodiments of the present disclosure, when the electronic device 150 is positioned away from the first distance X1 and then moved away from the second distance X2, the wireless power transmitter 100 may transmit power. May be changed from the first power transmission circuit 101 to the second power transmission circuit 102.

According to various embodiments of the present disclosure, the wireless power transmitter 100 may include a first power transmitter circuit 101 and a second power transmitter circuit when the electronic device 150 is located at a distance of a first distance X1. 102 may be used to transmit energy. For example, when rapid charging of the electronic device 150 is required, the wireless power transmitter 100 may transmit energy using a plurality of power transmitter circuits.

According to various embodiments of the present disclosure, the wireless power transmitter 100 may transmit energy in an electromagnetic manner through the second power transmitter circuit 102 even when the electronic device 150 is located at a distance of the first distance X1. You can also send. For example, when the electronic device 150 supports only the electromagnetic wave method, the wireless power transmitter 100 may transmit energy through the second power transmitter circuit 102 based on the information about the support scheme. . The wireless power transmitter 100 or the electronic device 150 may include a charging scheme supported by the electronic device, information related to power received by the electronic device, charging related information of the electronic device, wireless power transmission efficiency, and wireless power transmission related protocol. , The charging method may be determined according to various information such as the location of the obstacle. The apparatus 100 for transmitting power wirelessly may transmit energy using a power transmission circuit corresponding to the determined charging method.

The second power transmission circuit 102 may wirelessly transmit power to the at least one

electronic device

150, 160. In various embodiments of the present invention, the second power transmission circuit 102 may include a plurality of patch antennas 111-126. The patch antennas 111 to 126 are not limited as long as they are each antennas capable of generating an

RF wave

131 or 132. At least one of an amplitude and a phase of the RF wave generated by the patch antennas 111 to 126 may be adjusted by a processor of the second power transmission circuit 102 or the wireless power transmission apparatus 100. For convenience of description, the RF wave generated by each of the patch antennas 111 to 126 will be referred to as a sub-RF wave.

In various embodiments of the present invention, the second power transmission circuit 102 may adjust at least one of the amplitude and phase of each of the sub-RF waves generated by the patch antennas 111 through 126. Meanwhile, sub-RF waves may interfere with each other. For example, at one point the sub-RF waves may constructively interfere with each other, and at another point the sub-RF waves may cancel each other. In the second power transmission circuit 102 according to various embodiments of the present disclosure, the patch antennas 111 to 126 may generate sub-RFs so that the sub-RF waves may constructively interfere with each other at the first point (x1, y1, z1). At least one of the amplitude and phase of each of the RF waves may be adjusted.

For example, the apparatus 100 for transmitting power wirelessly may determine that the electronic device 150 is disposed at the first points x1, y1, and z1. Here, the position of the electronic device 150 may be, for example, a point where the power reception antenna of the electronic device 150 is located. The wireless power transmitter 100 may determine the location of the electronic device 150 according to various methods. For example, the wireless power transmitter 100 may determine the location of the electronic device 150 according to vision recognition or radar recognition. For example, the wireless power transmitter 100 may receive a communication signal (for example, a BLE communication signal) received from the electronic device 150 through a plurality of communication antennas, and a reception time point of each of the plurality of communication antennas. The location of the electronic device 150 may be determined by using the information about. The apparatus 100 for transmitting power wirelessly may determine a direction in which the electronic device 150 is located in various ways, such as a time difference of arrival (TDOA) or a frequency difference of arrival (FDOA). The wireless power transmitter 100 may determine a distance between the wireless power transmitter 100 and the electronic device 150 based on a difference between the transmission strength included in the communication signal and the reception strength received by the communication antenna. Can be. The apparatus 100 for transmitting power wirelessly may determine the position of the electronic device 150 based on the determined direction and the determined distance. For example, the wireless power transmission apparatus 100 may form a test RF wave according to a plurality of directions and a plurality of distances. The electronic device 150 may report the information on the magnitude of the received power (for example, information such as a voltage at an output terminal of the rectifier of the electronic device 150) to the wireless power transmitter 100. The apparatus 100 for transmitting power wirelessly may determine that the electronic device 150 is located at a position reported to receive optimal power. The electronic device 150 may first determine a direction in which the electronic device 150 is located according to a communication signal, and form a test RF wave in the corresponding direction. For example, the apparatus 100 for transmitting power wirelessly may modulate the test RF wave to include at least one of identification information on a direction or identification information on a distance in the test RF wave. The electronic device 150 may demodulate the received test RF wave, and report at least one of identification information on a direction included in the demodulation result or identification information on a distance to the wireless power transmitter 100 through a communication circuit. can do. The apparatus 100 for transmitting power wirelessly may determine the location of the electronic device 150 based on at least one of identification information on a direction or identification information on a distance included in a report result. The apparatus 100 for transmitting power wirelessly may form pilot RF waves in a plurality of directions, and may store information (eg, phase error, time of flight, etc.) regarding the reflected waves as reference information. The apparatus 100 for transmitting power wirelessly may form a pilot RF wave periodically or non-periodically and receive a reflected wave, and if it is detected that the information on the reflected wave is different from the previously stored reference information, It may be determined that the electronic device 150 is located. For example, the wireless power transmitter 100 may receive information about the location of the electronic device 150 from another external electronic device. For example, the wireless power transmitter 100 may receive information about a location directly from the electronic device 150. The method of determining the position of the electronic device 150 of the wireless power transmitter 100 described above is merely exemplary, and any technology capable of determining the position may be easily understood by those skilled in the art.

In order for the electronic device 150 to wirelessly receive power with high transmission efficiency, sub-RF waves must constructively interfere at the first point (x1, y1, z1). Accordingly, the second power transmission circuit 102 may control the patch antennas 111 to 126 such that the sub-RF waves are constructive interference with each other at the first points x1, y1, and z1. Here, controlling the patch antennas 111 to 126 means controlling the magnitude of a signal input to each of the patch antennas 111 to 126, or a phase (or delay) of a signal input to each of the patch antennas 111 to 126. ) May mean controlling. On the other hand, those skilled in the art will readily understand beam forming, which is a technique for controlling the RF wave to constructively interfere at a specific point. In addition, there is no limitation on the type of beam-forming used in the present invention. For example, various beamforming methods may be used, as disclosed in US Patent Publication 2016/0099611, US Patent Publication 2016/0099755, US Patent Publication 2016/0100124, and the like. The form of the RF wave formed by beam-forming may be referred to as pockets of energy.

Accordingly, the RF wave 131 formed by the sub-RF waves may have a maximum amplitude at the first point (x1, y1, z1), and thus the electronic device 150 may wirelessly transmit power with high efficiency. Can be received. Meanwhile, the second power transmission circuit 102 may detect that the electronic device 160 is disposed at the second points x2, y2, and z2. The second power transmission circuit 102 may control the patch antennas 111 to 126 such that the sub-RF waves are constructive interference at the second points x2, y2, and z2 to charge the electronic device 160. Accordingly, the RF wave 132 formed by the sub-RF waves may have a maximum amplitude at the second point (x2, y2, z2), and the electronic device 160 may receive wireless power with high transmission efficiency. Can be.

In more detail, the electronic device 150 may be disposed on the right side. In this case, the second power transmission circuit 102 may apply a larger delay to the sub-RF waves formed from the patch antennas (eg, 114, 118, 122, 126) disposed on the right side. That is, the sub-RF waves formed from the patch antennas (for example, 111, 115, 119, 123) disposed on the left side are first formed, and then the patch antennas (for example, 114, 118, 122, 126) disposed on the right side after a predetermined time passes. A sub-RF wave can be generated from. Accordingly, the sub-RF waves may meet simultaneously at the point on the right side, that is, the sub-RF waves at the point on the right side may be constructively interfered. If beam-forming is performed at a relatively central point, the second power transmission circuit 102 may have a patch antenna on the left side (eg, 111, 115, 119, 123) and a patch antenna on the right side (eg, 114, 118, 122, 126). Substantially the same delay can be applied. In addition, when beam-forming is performed at a point on the left side, the second power transmission circuit 102 has a patch antenna on the left side (eg, 111, 115, 119, 123) than a patch antenna on the right side (eg, 114, 118, 122, 126). A larger delay can be applied. On the other hand, in another embodiment, the second power transmission circuit 102 may oscillate the sub-RF waves substantially simultaneously throughout the patch antennas 111-126, and beam-forming by adjusting the phase corresponding to the delay described above. You can also do As described above, the wireless power transmitter 100 may transmit power or energy to the electronic device 150 located through the plurality of patch antennas 111 to 126 included in the second power transmitter circuit 102. have.

In operation 301, the wireless power transmitter 100 may detect the electronic device 150. In this document, the wireless power transmitter 100 or the electronic device 150 may perform a specific operation by various hardware included in the wireless power transmitter 100 or the electronic device 150, such as a processor. It may mean that the control circuit performs a specific operation. Alternatively, performing the specific operation by the wireless power transmitter 100 or the electronic device 150 may mean that the processor controls other hardware to perform the specific operation. Alternatively, when the wireless power transmitter 100 or the electronic device 150 performs a specific operation, the wireless power transmitter 100 or the electronic device 150 may perform a specific operation that is stored in a storage circuit (eg, a memory) of the wireless power transmitter 100 or the electronic device 150. As an instruction to perform is performed, it may mean causing a processor or other hardware to perform a particular operation. The wireless power transmitter 100 may detect the electronic device 150 according to various methods. For example, the wireless power transmitter 100 may detect the electronic device 150 according to vision recognition or radar recognition. For example, the wireless power transmitter 100 may detect the electronic device 150 according to a method defined in a standard of a resonance method or a standard of an induction method. In the case of conforming to the WCP standard (or Qi standard), the wireless power transmitter 100 transmits a ping signal and receives a response according to the in-band communication, and the electronic device 150 detects it. It can be judged. The apparatus 100 for transmitting power wirelessly may obtain a response by performing on / off keying demodulation on a current or voltage applied to a coil. In the case of conforming to the A4WP standard (or AFA standard), the wireless power transmitter 100 may apply a beacon for detecting the electronic device 150 to a coil (or a resonant circuit). Here, the beacons cause short beacons or communication circuitry of an electronic device to detect load changes caused by objects placed in the charging region, for example defined in the AFA standard, to cause a predetermined signal (e.g., , A long beacon used to transmit an Advertisement signal in a BLE communication scheme. The apparatus 100 for transmitting power wirelessly may detect a load change during a beacon application period, receive an advertisement signal defined by the BLE standard, or receive an intensity of an advertisement signal (eg, RSSI ( The electronic device 150 may be detected based on various conditions or a combination of conditions, such as a condition in which received signal strength indication) is greater than or equal to a threshold. According to the electromagnetic wave method, the electronic device 150 may be detected by receiving a communication signal (for example, an advertisement signal) or analyzing the reflected wave with respect to the pilot RF wave. The wireless power transmitter 100 according to various embodiments of the present disclosure may detect the electronic device 150 using a combination of the above-described detection methods of the various electronic devices 150. For example, the wireless power transmitter 150 may detect that the electronic device 150 is located in a chargeable area by vision recognition or radar recognition, and then, by forming electromagnetic waves and using reflected waves reflected therein. You can also get a more accurate location. Alternatively, the wireless power transmitter 150 may detect that the electronic device 150 is located in a chargeable area in response to a ping signal, and then determine a more accurate position by forming an electromagnetic wave and using reflected waves reflected. It may be. There is no limitation on the detection method of the electronic device 150.

In operation 303, the wireless power transmitter 100 may select whether to charge the electronic device 150 using a plurality of patch antennas or to charge the electronic device 150 using a coil for short-range charging. The wireless power transmitter 100 according to various embodiments of the present disclosure may include a plurality of patch antennas capable of transmitting power according to an electromagnetic wave method, and at least one coil capable of transmitting power according to an induction method or a resonance method. It may include. That is, the apparatus 100 for transmitting power wirelessly may select a charging method, and determine the power transmission circuit corresponding to the selected charging method as at least one of a plurality of patch antennas or coils. For example, the wireless power transmitter 100 may obtain a distance to the electronic device 150, and determine a charging method based on the distance. In another example, the wireless power transmitter 100 may include a charging scheme supported by the electronic device, information related to power received by the electronic device, charging related information of the electronic device, wireless power transmission efficiency, wireless power transmission related protocol, The charging method may be selected based on various information such as the location of the obstacle. Embodiments of the wireless power transmitter 100 selecting a charging method based on various information will be described later in more detail.

In operation 305, the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit. In operation 307, the electronic device 150 may perform charging by using energy from the wireless power transmission device. For example, the electronic device 150 may receive information on the selected charging method from the wireless power transmitter 100, and may select a power receiving circuit according to the received information. Alternatively, the electronic device 150 may receive power by using a plurality of power transmission circuits, and may select and charge a power reception circuit for receiving power having a large magnitude as a result of the reception. In various embodiments of the present disclosure, the apparatus 100 for transmitting power wirelessly may transmit information on the selected charging method to the electronic device 150 before or after transmitting energy in operation 305. The apparatus 100 for transmitting power wirelessly transmits information required for performing a selected charging scheme with the electronic device 150 (for example, information to be defined in a standard) before or after transmitting energy in operation 305. ) Can be exchanged. The wireless power transmitter 100 and the electronic device 150 may perform an operation (eg, a preparation operation for charging defined in a standard) required by the selected charging method.

As described above, a charging scheme or a power transmission circuit for transmitting energy may be selected by the wireless power transmission apparatus 100.

In operation 311, the wireless power transmitter 100 may detect the electronic device 150. In operation 313, the wireless power transmitter 100 may obtain information related to a distance from the wireless power transmitter 100 to the electronic device 150. For example, the wireless power transmitter 100 may determine the distance to the electronic device 150 based on the vision recognition or radar recognition result. For example, the wireless power transmitter 100 receives a communication signal from the electronic device 150, and compares the strength of the received communication signal with a transmission strength included in the communication signal to the electronic device 150. You can determine the distance. For example, the wireless power transmitter 100 may receive information about the location of the electronic device 150 from the electronic device 150 or another electronic device, and based on the information about the location of the electronic device 150. The distance from the wireless power transmitter 100 to the electronic device 150 may be determined. For example, the indoor location measuring device may measure coordinates in the room of the electronic device 150, and may transmit the location information to the wireless power transmitter 100. The indoor location measuring device may be an electronic device specialized in vision recognition or a radar method, and more accurately measure information on the location of the electronic device 150. The wireless power transmitter 100 may receive information on a location directly from the electronic device 150. The electronic device 150 may determine the current location according to various methods such as Wi-Fi signal-based indoor positioning technology, indoor positioning technology using a geomagnetic map, and indoor positioning technology using an NFC tag method. It may also transmit to the device 100. The apparatus 100 for transmitting power wirelessly may determine a distance to the electronic device 150 by comparing its indoor coordinates with the indoor coordinates of the received electronic device 150. As described above, the wireless power transmitter 100 may determine the distance to the electronic device 100 according to various methods, and the method of determining the distance is not limited.

In various embodiments of the present disclosure, the information related to the distance may also include information dependent on the distance between the wireless power transmitter 100 and the electronic device 150. For example, as the electronic device 150 is located farther from the wireless power transmitter 100, the magnitude of power or energy that the electronic device 150 receives from the wireless power transmitter 100 wirelessly may decrease. have. Accordingly, information on the magnitude of power received by the electronic device 150 may also be information related to a distance, which may be referred to as received power related information. The received power related information is information related to power received by the electronic device from the wireless power transmitter, and for example, voltage, current, power at a specific point of the electronic device 150 (for example, an output terminal of the rectifier or an input terminal of the rectifier). It may be the size and the like. For example, the electronic device 150 may transmit the information about the voltage at the output terminal of the rectifier to the wireless power transmitter 100, and the wireless power transmitter 100 may be applied to the voltage at the output terminal of the rectifier. You can also choose the charging method. On the other hand, it will be readily understood by those skilled in the art that there is no limit to a specific point for measuring the magnitude of voltage, current, and power.

In operation 315, the wireless power transmitter 100 may select whether to charge the electronic device by using the plurality of patch antennas or the electronic device by using a coil for short-term charging by using the obtained information. That is, the wireless power transmitter 100 may select whether to charge the electronic device 100 by the electromagnetic wave method or the electronic device 100 by the resonance method or the induction method by using the obtained information. For example, if it is determined that the distance from the wireless power transmitter 100 to the electronic device 150 exceeds a threshold, the wireless power transmitter 100 will charge the electronic device 150 by an electromagnetic wave method. That is, it can be selected to charge using a plurality of patch antennas. For example, if it is determined that the distance from the wireless power transmitter 100 to the electronic device 150 is less than or equal to the threshold, the wireless power transmitter 100 may charge the electronic device 150 in an inductive or resonant manner. That is, it may be selected to charge using a coil provided for near charge.

In operation 317, the wireless power transmission apparatus 100 may transmit information related to a charging scheme corresponding to the selected power transmission circuit to the electronic device. In operation 319, the electronic device 150 may select a power receiving circuit to receive energy using the received information. In operation 321, the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit. In operation 323, the electronic device 150 may perform charging by using energy from the wireless power transmission device 100. The electronic device 150 may convert energy into current, voltage, or power through the selected power receiving circuit.

As described above, the apparatus 100 for transmitting power wirelessly may select a charging method using information related to the distance to the electronic device 150. According to another embodiment, the electronic device 150 may determine the distance between the wireless power transmitter 100 and the electronic device 150, and the electronic device 150 selects a charging method, and the wireless power transmitter 100 may be notified. The apparatus 100 for transmitting power wirelessly may select a power transmission circuit according to the notified charging method.

3C is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.

In operation 331, the electronic device 150 may select whether to receive energy from a plurality of patch antennas or to receive energy from a coil. The electronic device 150 according to various embodiments of the present disclosure includes a plurality of patch antennas capable of receiving power according to an electromagnetic wave method and at least one coil capable of receiving power according to an induction method or a resonance method. can do. That is, the electronic device 150 may select a charging method, and determine the power receiving circuit corresponding to the selected charging method as at least one of a plurality of patch antennas or coils. For example, the wireless power transmitter 100 may transmit test power according to a plurality of charging methods. The apparatus 100 for transmitting power wirelessly may transmit first test power according to a resonance method, and may transmit second test power according to an electromagnetic wave method sequentially or simultaneously. In various embodiments of the present disclosure, the apparatus 100 for transmitting power wirelessly may determine the position of the electronic device 150 in advance, thereby controlling the RF wave to be beamformed at the position of the electronic device 150. . The electronic device 150 may receive the first test power and the second test power sequentially or simultaneously. The electronic device 150 may select a charging method for transmitting a larger power by comparing the received power (eg, current, voltage, or power).

In operation 333, the electronic device 150 may transmit information about the selected charging method to the wireless power transmitter 100. As the test power is provided, even when the battery of the electronic device 150 is completely discharged, the electronic device 150 may be driven to transmit information. In operation 335, the wireless power transmitter 100 may transmit energy by using a power transmission circuit corresponding to the received information. In operation 337, the electronic device 101 may receive energy by using a power reception circuit corresponding to the selected charging method. As described above, the subject of selection of the charging method may be the electronic device 150.

The wireless power transmitter 100 according to various embodiments of the present disclosure may include a first power source 401, a first amplifying circuit 402, a distribution circuit 403, and a phase shifter 404. ), An antenna array 405 for power transmission, a processor 410, a communication circuit 420, a memory 430, a second power source 411, a second amplifying circuit 421, and a coil 422. Can be. The electronic device 150 includes an antenna 451 for receiving power, a first rectifying circuit 452, a first converting circuit 453, a charger 454, a processor 455, a memory 457, and communication. The circuit 460 may include a first sensing circuit 461, a second sensing circuit 466, a coil 471, a second rectifying circuit 472, and a second converting circuit 473.

The first power source 401 may provide AC power having a frequency (eg, 5.8 GHz) corresponding to the electromagnetic wave method. The first power source 401 may include, for example, an apparatus for providing direct current power and an inverter (not shown) for converting the direct current power into alternating current power. The processor 410 may, for example, control the output of the first power source 401. The first amplifier circuit 402 may amplify the received power and provide it to the distribution circuit 403. The processor 410 may control the amplification gain of the received power. The first amplifier circuit 402 may include at least one amplifier. The first amplifying circuit 402 and the second amplifying circuit 421 may be implemented by various amplifiers such as a drive amplifier (DA), a high power amplifier (HPA), a Gain Block Amplifier (GBA), or a combination thereof. There is no limit to the example. The distribution circuit 403 can distribute the power output from the first amplifier circuit 402 into a plurality of paths. There is no limitation as long as the circuit can distribute the input power or signal to a plurality of paths. For example, the distribution circuit 403 may distribute power in as many paths as the number of patch antennas included in the power transmission antenna array 405.

The phase shifter 404 may shift the phase (or delay) of each of the plurality of AC powers provided from the distribution circuit 403. There may be a plurality of phase shifters 404, for example, the number of patch antennas included in the antenna array 405 for power transmission. The phase shifter 404 may be a hardware element such as, for example, HMC642 or HMC1113. The shift degree of each of the phase shifters 404 may be controlled by the processor 410. The processor 410 may determine the location of the electronic device 150, and the sub-RF waves may be generated at the location of the electronic device 150 (or the location of the antenna 451 for receiving power of the electronic device 150). The phase of each of the plurality of AC powers may be shifted so that constructive interference. Each of the plurality of patch antennas included in the power transmission antenna array 405 may generate sub-RF waves based on the received power. The RF wave interfering with the sub-RF wave may be converted into a current, a voltage or a power in the power receiving antenna 451 and output.

The power receiving antenna 451 may include a plurality of patch antennas, and may generate current, voltage, or power of an AC waveform by using an RF wave formed around the electromagnetic wave, that is, an electromagnetic wave, which may be referred to as received power. Can be. The first rectifier circuit 452 may rectify the received power into a direct current waveform. The first converting circuit 453 may increase or decrease the voltage of the power of the DC waveform to a predetermined value and output the same. The charger 454 may charge the battery by adjusting the magnitude of the voltage or the magnitude of the converted power. In some implementations, the charger 454 may not be included in the electronic device 150. In this case, the first converting circuit 453 may adjust the magnitude of the voltage or current of the power to be suitable for charging the battery. You can also charge directly.

The first sensing circuit 461 may sense a magnitude of a voltage, a magnitude of a current, or a magnitude of power at an output terminal of the first rectifier circuit 452. For example, the first sensing circuit 461 may include various types of voltmeters, such as an electrodynamic instrument voltmeter, an electrostatic voltmeter, and a digital voltmeter, or various types of ammeters such as a direct current ammeter, an alternating current ammeter, a digital ammeter, or the like. Or an analog to digital converter (ADC). The processor 455 may check the magnitude of the current, the magnitude of the voltage, or the magnitude of the power sensed by the first sensing circuit 461. The processor 455 may provide the magnitude of the sensed current, the magnitude of the voltage, or the magnitude of the power to the communication circuit 460 as first received power related information. The communication circuit 460 may transmit a communication signal including the first reception power related information to the communication circuit 420 of the wireless power transmission apparatus 100. The processor 455 or the processor 410 may be implemented in various circuits capable of performing operations such as a general purpose processor such as a CPU, a minicomputer, a microprocessor, a micro controlling unit (MCU), a field programmable gate array (FPGA), and the like. Can be, and there is no limit to the kind.

The processor 410 receives power transmitted from the power transmission antenna array 405 on the electronic device 150 based on the first received power related information included in the communication signal received by the communication circuit 420. Information about the size can be determined.

The second power source 411 may provide AC power having a frequency (eg, 6.78 MHz) corresponding to the resonance method or a frequency (100 to 205 kHz) corresponding to the induction method. The second power source 411 may include, for example, an apparatus for providing direct current power and an inverter (not shown) for converting the direct current power into alternating current power. The processor 410 may, for example, control the output of the second power source 411. The second amplifying circuit 421 may amplify the received power and provide it to the coil 422. The processor 410 may control the amplification gain of the received power. The second amplifying circuit 421 may include at least one amplifier. The coil 422 may generate a magnetic field using the received power. For example, when an alternating current flows through the coil 422, an induced magnetic field that changes in size with time may be generated. Although not shown, at least one capacitor may be connected to the coil 422, and the coil 422 and the capacitor may form a resonant circuit. The resonance circuit may have a resonance frequency corresponding to the frequency of the resonance method or the induction method. The second power source 411 may be designed to be merged with the first power source 401.

In the coil 471 of the electronic device 150, an induced electromotive force may be generated based on a magnetic field whose magnitude changes with time generated in the surroundings, and may be referred to as received power. The AC power output from the coil 471 may be rectified by the second rectifier circuit 472. The second converting circuit 473 may adjust the magnitude of the voltage or current of the rectified power and output it to the charger 454. Although not shown, for example, the electronic device 150 may further include a combiner for summing power from the first converting circuit 453 and the second converting circuit 473. In this case, the combined DC power in the combiner may be provided to the charger 454. According to an implementation, when the charger 454 is not included in the electronic device 150, the second converting circuit 473 may directly charge the battery by adjusting the magnitude of the current or the magnitude of the voltage to be suitable for charging the battery. It may be. The second sensing circuit 466 may sense a magnitude of a current, a magnitude of a voltage, or a magnitude of power at an output terminal of the second rectifying circuit 472. The processor 455 may check the magnitude of the current sensed by the second sensing circuit 466, the magnitude of the voltage, or the magnitude of the power. The processor 455 may provide the magnitude of the sensed current, the magnitude of the voltage, or the magnitude of the power to the communication circuit 460 as second received power related information. The communication circuit 460 may transmit a communication signal including the second received power related information to the communication circuit 420 of the wireless power transmitter 100. The communication circuit 460 may include and transmit the first received power related information and the second received power related information in one communication signal, or may include and transmit the first received power related information and the second received power related information in another communication signal. The processor 410 may be configured to determine, based on the second received power related information included in the communication signal received by the communication circuit 420, the power transmitted through the coil 422 about the magnitude of the power received by the electronic device 150. Information can be judged.

According to various embodiments of the present disclosure, the processor 410 may be configured such that the power transmitted through the antenna array 405 for power transmission is received by the electronic device 150 and the power transmitted through the coil 422. The size received at 150 may be compared. The processor 410 may choose to perform charging using a power transmission circuit corresponding to a larger size. That is, the processor 410 may select a charging method and transmit information about the selected charging method to the electronic device 150 through the communication circuit 420. The processor 455 may select one of the power reception antenna 451 and the coil 471 as a power reception circuit to receive power based on the information received through the communication circuit 460.

The processor 455 according to various embodiments of the present disclosure may compare the first received power related information with the second received power related information and select a direct charging method. The processor 455 may provide the communication circuit 460 with information about the selected charging method, and the communication circuit 460 may transmit a communication signal including the information about the selected charging method to the communication circuit 420. have. The processor 410 may select either the power transmission antenna array 405 or the coil 422 as a power transmission circuit to transmit power by using the received charging information.

In the memory 430 or the memory 457, instructions that cause the processor 410 or the processor 455 to perform the above-described operation may be stored. The memory 430 may be implemented in various forms, such as read only memory (ROM), random access memory (RAM), or flash memory, and the like. The wireless power transmitter 100 as shown in FIG. 4A may also be referred to as a passive wireless power transmitter.

The processor 410 or the processor 455 according to various embodiments of the present disclosure may include a distance between the wireless power transmitter 100 and the electronic device 150, a charging scheme supported by the electronic device 150, and an electronic device ( The charging method may be selected according to various information such as charging related information, wireless power transmission efficiency, wireless power transmission protocol, and obstacle location.

Referring to FIG. 4B, the apparatus for transmitting power wirelessly includes an MCU 461, a decoder 462, an I / O expander 463, and a digital-to-analog converter DAC. 464, a power amplifier (PA) 465, a phase shifter 466, a 6.78 MHz amplifier 467, an antenna array 470 for power transmission including a plurality of patch antennas, and It may include a coil 472.

The MCU 461 may be, for example, a type of processor 410 in FIG. 4A, and outputs address related information of the I / O expander 463 to the decoder 462. can do. For example, the MCU 461 may output address related information through a general-purpose input / output (GPIO). The decoder 462 may decode the received address related information and control the I / O expander 463 for each address by using the address related information as a result of the decoding. The MCU 461 may output the phase adjustment information to the I / O expander 463. The MCU 461 may transmit phase adjustment information through, for example, a serial peripheral interface (SPI). The I / O expander 463 may digitize the received phase adjustment information and output it to the DAC 464. The I / O expander 463 may output digital phase adjustment information to the DAC 464 through a greater number of output channels than the input channel. For example, if there are 16 channels between the I / O expander 463 and the decoder 462, there may be 64 channels of the I / O expander 463 and the DAC 464. The number of patch antennas included in the DAC 464, the phase shifter 466, and the power transmission antenna array 470 may be, for example, 64. The I / O expander 463 may output, for example, digital phase adjustment information to the DAC 464 via GPIO. The DAC 464 may convert the received digital phase adjustment information into an analog form and output the analog phase adjustment information to the phase shifter 466. The phase shifter 466 may be, for example, a pin-diode based phase shifter. The phase shifter 466 is an alternating current power according to an electromagnetic wave method from the RF PA 465, for example, an alternating current power of 5.8 GHz. The phase shifter 466 may adjust the phase of each of the plurality of powers received through the plurality of channels by using the received phase adjustment information. The phase-adjusted power may be output to each of the plurality of patch antennas of the power transmission antenna array 470. Each of the plurality of patch antennas may receive each of the phase-adjusted powers to form sub-RF waves. And the RF wave 471 may be formed by beam-forming or interfering the sub-RF wave, as described above, by patching the power from the RF PA 465 by phase shifting the patch antenna. The 6.78 MHz amplifier 467 may provide an AC power of 6.78 MHz to the coil 472 according to a resonance method (eg, an AFA method), and may be referred to as a passive method. The coil 472 may use this to form a magnetic field 473.

4C is a block diagram of a wireless power transmitter and an electronic device according to various embodiments of the present disclosure. In contrast to the wireless power transmitter of FIG. 4A, the wireless power transmitter of FIG. 4C may include an attenuator 407 and a third amplification circuit 409. The AC power amplified by the first amplifier circuit 402 may be provided to the plurality of phase shifters 404 through the distribution circuit 403. In addition, each of the plurality of attenuators 407 may be connected to each of the plurality of phase shifters 404. As described above, the processor 410 may adjust at least one of the phase or amplitude of the AC power input to each of the plurality of patch antennas of the power transmission antenna array 405 to be beamformed at a specific point. The processor 410 adjusts at least one of the degree of shifting of each of the plurality of phase shifters 404 or the amount of attenuation of each of the attenuators 407 to thereby adjust the phase or amplitude of AC power input to each of the plurality of patch antennas. At least one of can be adjusted. Attenuator 407 may operate digitally. An I / O expander (not shown) may be connected to the processor 410, and a phase shifter 404 and an attenuator 407 may be connected to the I / O expander (not shown). Accordingly, the signal from the processor 410 is extended to a plurality, and each of the extended signals may be transmitted to each of the plurality of phase shifters 404 or the plurality of attenuators 407. The plurality of alternating current powers in which at least one of an amplitude or a phase is adjusted may be input to the third amplifying circuit 409, and the third amplifying circuit 409 may amplify the plurality of alternating current powers provided to the antenna array for power transmission. Each of the plurality of patch antennas included in 405 may be transmitted. The wireless power transmitter 100 as shown in FIG. 4C may be referred to as an active wireless power transmitter.

Referring to FIG. 4D, the wireless power transmitter includes a control circuit 483, a phase shifter 484, an RF PA 485, a DC-DC controller 486, a 6.78 MHz PA 487, and a power transmission. A credit antenna array 490 and coil 492 may be included. The control circuit 483 may include an MCU 481 and a control box 482. The MCU 481 may determine at least one of phase adjustment information or amplitude adjustment information of an electrical signal input to each of the patch antennas included in the power transmission antenna array 490, which is output to the control box 482. can do. The control box 482 may output a control signal for phase adjustment to the phase shifter 484, and may output a control signal for amplitude adjustment to the RF PA 485. Accordingly, at least one of the phase or amplitude of the electrical signal input to each of the patch antennas included in the power transmission antenna array 490 may be adjusted, so that the beam-forming position of the RF wave 491 may be controlled. . As described above, a method in which at least one of a phase or an amplitude of an electrical signal input to the patch antenna is adjusted may be referred to as an active method.

The MCU 481 may determine the size information of the power applied to the coil to adjust the size of the magnetic field 493 according to the resonance method, and may transmit it to the control box 482. The control box 482 may transmit a coil applied power magnitude control signal to the DC-DC controller 486, and the DC-DC controller 486 may output power from the 6.78 MHz PA 487 using the control signal. You can control the size of. Accordingly, the size of the magnetic field 493 formed from the coil 492 can be controlled.

In operation 501, the wireless power transmitter 100 may detect the electronic device 150. In operation 503, the wireless power transmitter 100 may determine a distance from the wireless power transmitter 100 to the electronic device 150. In operation 505, the apparatus 100 for transmitting power wirelessly may determine whether the distance exceeds a threshold. The threshold value may be a numerical value determined through an experiment or the like as to transmit power in an electromagnetic wave method is more advantageous than in a resonance method or an induction method. For example, the distance when the efficiency when transmitting power in an electromagnetic wave manner is the same as the efficiency when transmitting power in a resonance manner or an induction manner may be set as a threshold. Alternatively, the distance when the reception intensity when transmitting power by the electromagnetic wave method is the same as the reception intensity when transmitting power by the resonance method or the induction method may be set as a threshold. The threshold may be set by various conditions.

If it is determined that the distance exceeds the threshold, in operation 507, the wireless power transmitter 100 may transmit power using a plurality of patch antennas. That is, the wireless power transmitter 100 may select the charging method as the electromagnetic wave method. If the distance is determined to be less than or equal to the threshold, in operation 509, the wireless power transmitter 100 may transmit power using a coil or a resonance circuit. That is, the apparatus 100 for transmitting power wirelessly may select a charging method as a resonance method or an induction method.

In operation 601, the wireless power transmitter 100 may detect the electronic device 150. In operation 603, the wireless power transmitter 100 may transmit test power according to a plurality of charging methods. For example, the wireless power transmitter 100 may transmit first test power through a plurality of patch antennas according to an electromagnetic wave method, and may simultaneously or sequentially through a coil (or a resonant circuit) according to a resonance method. The second test power may be transmitted.

In operation 605, the electronic device 150 may receive power through a plurality of power receiving circuits. The electronic device 101 may receive the first test power through the plurality of patch antennas and the second test power through the coil (or the resonant circuit). In operation 607, the electronic device 150 may detect at least one of voltage, current, or power associated with the plurality of power receiving circuits. As described above, the electronic device 150 may detect at least one of a voltage, a current, or a magnitude of power output from the plurality of power receiver circuits, for example, rectification connected to each of the plurality of power receiver circuits. One skilled in the art will readily understand that at least one of the magnitude of the voltage, current, or power at the input or output of the circuit may be detected, and there is no limit to the detection point.

In operation 609, the electronic device 150 may select a charging method based on a comparison result of the detected numerical value. The electronic device 150 may include, for example, a second rectifying circuit (eg, a magnitude of a voltage at an output terminal of a first rectifying circuit (eg, 452 in FIG. 4A) that rectifies the first test power). If it is determined that the voltage is greater than the voltage at the output terminal 472 of FIG. 4A, the electronic device 150 may select the electromagnetic wave method corresponding to the first test power as the charging method. Alternatively, the electronic device 150 may include, for example, a second rectifying circuit whose magnitude of the voltage at the output terminal of the first rectifying circuit (for example, 452 of FIG. 4A) rectifies the second test power. For example, if it is determined to be smaller than the magnitude of the voltage at the output terminal 472 of FIG. 4A, the electronic device 150 may select a resonance method or an induction method corresponding to the second test power as the charging method. The charging method in which the power is received with the largest size is selected, which may be the charging method having the shortest charging time. That is, the wireless power transmitter 100 or the electronic device 150 may select a charging method that is expected to have the shortest charging time.

In various embodiments of the present disclosure, the electronic device 150 may select a charging method according to a threshold comparison method. If the magnitude of the voltage at the output of the first rectifier circuit (eg, 452 of FIG. 4A) exceeds a threshold, the electronic device 150 may select the electromagnetic wave method as the charging method. When the electronic device 150 determines that the magnitude of the voltage at the output terminal of the second rectifying circuit (eg, 472 of FIG. 4A) that rectifies the second test power is greater than the threshold, an induction scheme corresponding to the second test power. Alternatively, the resonance method may be selected as the charging method. The magnitude of the voltage at the output of the first rectifying circuit (eg, 452 of FIG. 4A) and the magnitude of the voltage at the output of the second rectifying circuit (eg, 472 of FIG. 4A) of rectifying the second test power are both threshold values. If exceeded, the electronic device 150 may select two electromagnetic wave methods, and an induction method or a resonance method as the charging method. In various embodiments of the present disclosure, the threshold corresponding to the voltage at the output of the first rectifying circuit (eg, 452 in FIG. 4A) and the threshold at the output of the second rectifying circuit (eg, 472 in FIG. 4A) may be determined. They may be the same or different. For example, the lowest voltage value for using the electromagnetic wave method and the lowest voltage value for using the induction method or the resonance method may be different from each other. In various embodiments of the invention, the voltage at the output of the first rectifying circuit (eg, 452 of FIG. 4A) and at the output of a second rectifying circuit (eg, 472 of FIG. 4A) that rectify the second test power. When the magnitudes of the voltages are all less than or equal to the threshold, the wireless power transmitter 100 may not perform charging or may select a charging method having a larger voltage value according to a relative comparison method.

In operation 611, the electronic device 150 may transmit information about the selected charging method to the wireless power transmitter 100. The network for transmitting the information may be different depending on the selected charging scheme. For example, in the case of a resonance method or an electromagnetic wave method, the electronic device 150 may transmit information through hardware for out-band communication such as a BLE communication module. For example, in the case of the induction method, the electronic device 150 may transmit information according to the on / off switch for the on / off keying modulation scheme disposed therein. In operation 613, the wireless power transmitter 100 may select a power transmitter circuit to transmit power based on the received information. In operation 615, the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit. In operation 617, the electronic device 150 may receive energy using a power receiving circuit corresponding to the selected charging method.

6B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure. Since operations 601 to 607 have been described with reference to FIG. 6A, descriptions thereof will be omitted.

In operation 621, the electronic device 101 may include the detected value in a communication signal and transmit the same to the wireless power transmitter 100. In operation 623, the apparatus 100 for transmitting power wirelessly may select a charging method based on a result of comparing the detected numerical value. As described in FIG. 6A, for example, the magnitude of the voltage at the output terminal of the first rectifying circuit (for example, 452 in FIG. 4A) for rectifying the first test power is equal to the second rectifying circuit (for example, for rectifying the second test power). If it is determined that the voltage is greater than the magnitude of the voltage at the output terminal 472 of FIG. 4A, the wireless power transmitter 100 may select an electromagnetic wave method corresponding to the first test power as the charging method.

In operation 625, the wireless power transmission apparatus 100 may select a power transmission circuit to transmit power corresponding to the selected charging scheme. For example, when the electromagnetic wave method is selected as the charging method, the wireless power transmitter 100 may select a plurality of patch antennas as a power transmission circuit for transmitting power. In operation 627, the apparatus 100 for transmitting power wirelessly may transmit information about the selected charging scheme. In operation 629, the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit. In operation 631, the electronic device 150 may receive energy using a power receiving circuit corresponding to the selected charging scheme.

As described with reference to FIGS. 6A and 6B, the charging method may be selected by the wireless power transmitter 100 or the electronic device 150 that receives power according to various embodiments.

In operation 701, the electronic device 150 may transmit information on a charging method supported by the electronic device 150. For example, when the electronic device 150 includes a BLE-based communication circuit, the electronic device 150 may include information about a charging scheme in an advertisement signal defined in the BLE standard and transmit the information. The electronic device 150 may code and transmit information about a charging method. According to various embodiments of the present disclosure, the electronic device 150 may include information on a charging scheme in another signal defined in the BLE standard and transmit the information. Alternatively, the electronic device 150 may include information about a charging method in a signal defined in various communication methods and transmit the same.

In operation 703, the wireless power transmitter 100 may charge the electronic device 150 using a plurality of patch antennas or charge the electronic device 150 using a coil for short-range charging based on the received information. You can choose whether or not. For example, when the electronic device 150 supports only the resonance method, the wireless power transmission apparatus 100 may perform the resonance method even when the distance to the electronic device 150 exceeds the threshold described with reference to FIG. 5. You can choose the charging method. In operation 705, the apparatus 100 for transmitting power wirelessly may transmit energy using the selected power transmission circuit. In operation 707, the electronic device 150 may perform charging by using energy from the wireless power transmission device 150.

7B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure. The embodiment of FIG. 7B will be described in more detail with reference to FIG. 7C. 7C is a diagram illustrating a user interface for inputting a charging method selection of an electronic device according to various embodiments of the present disclosure.

In operation 710, the electronic device 150 may receive a charging method selection. For example, as shown in FIG. 7C, the electronic device 150 may display a user interface 730 for inputting a charging method selection on a touch screen. In various embodiments of the present disclosure, the electronic device 150 may receive information about a charging method supported by the wireless power transmitter 100, and a charging method and the electronic device supported by the wireless power transmitter 100. The user interface 730 may be configured as common charging methods among the charging methods supported by the 150. The user interface 730 may include charging

scheme identification information

731 and 733 and

keys

732 and 734 for selecting a charging scheme. The user interface 730 may include a buffer estimated time corresponding to the charging method in the charging

method identification information

731 and 733 fields. In FIG. 7C, near-field charging may be selected to perform charging in a charging manner.

In operation 711, the electronic device 150 may transmit information about the selected charging method to the wireless power transmitter 100. In operation 713, the wireless power transmitter 100 may charge the electronic device 150 using a plurality of patch antennas based on the received information, or may charge the electronic device 150 using a coil for short-range charging of the electronic device 150. You can choose whether or not. For example, when the user selects near charging, the wireless power transmitter 100 may select a resonance method or an induction method as a charging method. In operation 715, the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit. In operation 717, the electronic device 150 may perform charging by using energy from the wireless power transmission device 150.

In operation 801, the wireless power transmitter 100 may detect an electronic device. In operation 803, the apparatus 100 for transmitting power wirelessly may transmit test power simultaneously or sequentially according to a plurality of charging schemes. For example, the wireless power transmitter may transmit the first test power by the electromagnetic wave method and the second test power by the resonance method. In operation 805, the electronic device 150 may receive power through a plurality of power receiving circuits. In operation 807, the electronic device 150 may detect at least one of magnitudes of voltages, currents, or powers associated with the plurality of power receiving circuits.

In operation 809, the apparatus 100 for transmitting power wirelessly may transmit information on energy transmission strength. For example, the apparatus 100 for transmitting power wirelessly transmits information on the transmission strength of the first test power and information on the transmission strength of the second test power to the electronic device 150 as one communication signal or a plurality of communication signals. I can send it. In operation 811, the electronic device 150 may determine the efficiency of each of the plurality of charging methods by using the detected numerical value and the information on the energy transmission intensity. In another embodiment, the electronic device 150 may measure the reception intensity of energy and may determine the transmission efficiency using the energy transmission intensity and the energy reception intensity.

In operation 813, the electronic device 150 may select a charging method based on the determined efficiency. For example, the electronic device 150 may select a charging method having a higher efficiency. In operation 815, the electronic device 150 may transmit information about the selected charging method to the wireless power transmitter 100. In operation 817, the apparatus 100 for transmitting power wirelessly may select a power transmission circuit to transmit power based on the received information. That is, the apparatus 100 for transmitting power wirelessly may select a charging method based on the received information. In operation 819, the apparatus 100 for transmitting power wirelessly may transmit energy using the selected power transmission circuit. In operation 821, the electronic device 150 may receive energy by using a power receiving circuit corresponding to the selected charging method. As described above, power may be transmitted at an optimum efficiency, and thus power saving management may be possible.

8B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure. Since operations 801 to 807 have been described with reference to FIG. 8A, descriptions thereof will be omitted.

In operation 831, the electronic device 150 may transmit a detection result. According to various embodiments of the present disclosure, the electronic device 150 may detect a reception strength of energy and transmit the reception strength of power to the wireless power transmission apparatus 100. In operation 833, the apparatus 100 for transmitting power wirelessly may determine the efficiency of each of the plurality of charging schemes using the energy transmission strength and the received detection result. Alternatively, the wireless power transmitter 100 may determine the transmission efficiency based on the energy transmission intensity and the reception intensity of the energy in the electronic device 150. In operation 835, the apparatus 100 for transmitting power wirelessly may select a charging method based on the determined efficiency. For example, the apparatus 100 for transmitting power wirelessly may select a charging method having higher efficiency. In operation 837, the wireless power transmitter 100 may transmit information about the selected charging method. In operation 839, the apparatus 100 for transmitting power wirelessly may select a power transmission circuit to transmit power based on the received information. In operation 841, the wireless power transmission apparatus 100 may transmit energy using the selected power transmission circuit. In operation 843, the electronic device 150 may receive energy by using a power receiving circuit corresponding to the selected charging method.

As described with reference to FIGS. 8A and 8B, according to various embodiments, the charging method may be selected by the wireless power transmitter 100 or the electronic device 150 receiving power based on a transmission efficiency.

In operation 901, the wireless power transmission device 100 may detect the electronic device 150. In operation 903, as described above, the wireless power transmitter 100 may include at least one of a distance between the wireless power transmitter 100 and the electronic device 150, a magnitude of energy received from the electronic device 150, or an efficiency. Based on one, the first charging method may be selected from among the plurality of charging methods.

In operation 905, the apparatus 100 for transmitting power wirelessly may determine whether the wireless power transmission apparatus violates an agreement relating to an electric field or a magnetic field. For example, organizations such as the Federal Communications Commission (FCC) have distributed protocols related to electromagnetic or electromagnetic interference (EMI), and the wireless power transmitter 100 must comply with the related protocols. In addition, wireless charging standards (eg, WPC standard or A4WP standard) also regulate the maximum transmission amount or the minimum transmission amount, and the wireless power transmitter 100 must comply with the regulations. Accordingly, the wireless power transmitter 100 may determine whether the wireless power transmission apparatus violates a related protocol when transmitting according to the determined first charging scheme. Parameters for the relevant protocol and conditions for the numerical value of the parameter may be stored in advance in the wireless power transmission apparatus 100, and the wireless power transmission apparatus 100 detects a numerical value corresponding to the previously stored parameter, and detects the result. By judging whether or not satisfies a pre-stored condition, it is possible to determine whether or not to comply with the protocol.

In operation 907, the wireless power transmitter 100 may perform charging according to the selected first charging method. If it is determined that the protocol is violated, in operation 909, the wireless power transmitter 100 may change from the first charging method to the second charging method and perform charging according to the second charging method.

In various embodiments of the present disclosure, the apparatus 100 for transmitting power wirelessly may determine to perform charging using both the first charging method and the second charging method. For example, when the electronic device 150 requires rapid charging, the wireless power transmitter 100 may transmit power to the electronic device 150 using a plurality of charging methods simultaneously. When it is determined that the simultaneous charging condition for the electronic device 150 is satisfied, the wireless power transmitter 100 may determine to perform charging using both the first charging method and the second charging method. Even when simultaneously transmitting power by a plurality of charging methods, the wireless power transmitter 100 may determine whether a violation of a related protocol is found. If it is determined that it is in violation of a related protocol, at least one of a plurality of charging methods may be charged. The power transmission using the scheme may be stopped, and the power may be transmitted using the remaining charging scheme.

10A is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure. 10A will be described in more detail with reference to FIG. 10B. 10B is a conceptual diagram illustrating an arrangement of a wireless power transmitter and a living body according to various embodiments of the present disclosure.

In operation 1001, the wireless power transmitter 100 may detect the electronic device 150. In operation 1003, the wireless power transmitter 100 may be based on at least one of a distance between the wireless power transmitter 100 and the electronic device 150, a magnitude of energy received from the electronic device 150, or an efficiency. The first charging method may be selected among the plurality of charging methods.

In operation 1005, the wireless power transmitter 100 may determine whether it affects a living body when charging is performed by the first charging method. For example, as shown in FIG. 10B, the living body 1030 may be located around the wireless power transmitter 100. The apparatus 100 for transmitting power wirelessly may determine the location of the living body 1030 according to various methods such as vision recognition or radar recognition. If it is determined that the living body is not affected, in operation 1007, the wireless power transmitter 100 may perform charging according to the first charging method. If determined to affect the living body, in operation 1009, the wireless power transmitter 100 may perform charging according to the second charging method.

For example, as shown in FIG. 10B, the apparatus 100 for transmitting power wirelessly may be located near the TV 1011. When the electronic device 150 is positioned in the first range 1022, the wireless power transmitter 100 charges the electronic device 150 through a resonance method, and moves out of the first range 1022 to the second range 1023. In the case where the electronic device 150 is located, the electronic device 150 may be set to charge the electronic device 150 through an electromagnetic wave method. Since the electronic device 150 is determined to be included in the first range 1022, the wireless power transmitter 100 may form a magnetic field 1021 based on a resonance method. However, when it is determined that the magnetic field 1021 affects the living body 1030, the wireless power transmitter 100 may determine to charge the electronic device 150 through an electromagnetic wave method as shown in the right side of FIG. 10B. . The apparatus 100 for transmitting power wirelessly may form an RF wave 1024, and the RF wave 1024 may be beam-formed at a location of the electronic device 150, and thus may not affect the living body 1030. Although not shown, the wireless power transmission apparatus 100 may select the charging method by the electromagnetic wave method and change the charging method by the resonance method. For example, the apparatus 100 for transmitting power wirelessly may detect that a living body is located in a direction in which a beamformed RF wave is formed. In this case, the apparatus 100 for transmitting power wirelessly may transmit power to the electronic device 150 by changing the charging method in a resonance manner.

In various embodiments of the present disclosure, the wireless power transmission apparatus or the electronic device does not change the selected charging method if it is determined that the specific absorption rate (SAR) related protocol suggested by the FCC body is not violated even if a living body is detected. It may transmit power.

11 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure. The embodiment of FIG. 11 will be described in more detail with reference to FIG. 12. 12 is a view illustrating a user interface for inducing a change in a charging scheme of a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.

In operation 1101, the wireless power transmitter 100 or the electronic device 150 may perform charging according to the first charging method. The wireless power transmitter 100 may transmit power through a power transmission circuit corresponding to the first charging scheme, and the electronic device 150 may receive power through a power receiving circuit corresponding to the first charging scheme. Can be. In operation 1103, the wireless power transmitter 100 or the electronic device 150 may provide a UI for inducing a second charging scheme. The wireless power transmitter 100 or the electronic device 150 has a transmission efficiency less than a threshold value when the first charging method is less than the threshold, or the strength of the power received from the electronic device 150 by the first charging method is less than the threshold value. A UI for switching to the second charging method may be provided. Alternatively, the wireless power transmitter 100 or the electronic device 150 may provide a UI for switching to the second charging method when the battery remaining amount of the electronic device 150 is less than the reference value. Alternatively, when the power consumption of the electronic device 150 increases, the wireless power transmitter 100 or the electronic device 150 may provide a UI for switching to the second charging method. In this case, even while the application is in use, the electronic device 150 may provide a UI for switching to the second charging method. Alternatively, the wireless power transmitter 100 or the electronic device 150 switches to the second charging method when the amount of power that can be charged by the second charging method in the wireless power transmitter 100 exceeds a threshold. It can provide a UI for. For example, if the wireless power transmitter 100 charges another electronic device using the second charging method, and the other electronic device is fully charged, the wireless power transmitter 100 may provide a UI for switching to the second charging method.

For example, as shown in FIG. 12, the apparatus 100 for transmitting power wirelessly may transmit data 1211 to the TV 1210. The apparatus 100 for transmitting power wirelessly may transmit data 1211 including a command to display the UI 1232 to induce a switch to the second charging scheme to the TV 1210. If the wireless power transmitter 100 includes a display, the wireless power transmitter 100 may display a UI for inducing a switch to the second charging scheme. Alternatively, the apparatus 100 for transmitting power wirelessly may transmit data 1200 including a command to display the UI 1231 for inducing a switch to the second charging scheme to the electronic device 150. For example, the “one-connect box” may be a model name of a device including the wireless power transmitter 100, and the UI 1231 may be configured with a user-friendly name. Alternatively, the electronic device 150 may use the second charging method when the transmission efficiency by the first charging method is less than the threshold or when the intensity of power received by the electronic device 150 by the first charging method is less than the threshold. The UI 1231 may be displayed for switching. In various embodiments of the present disclosure, the apparatus 100 for transmitting power wirelessly may provide a UI that induces switching to the second charging method through various methods such as sound, vibration, and LED blinking as well as a screen.

In operation 1105, the wireless power transmitter 100 or the electronic device 150 may determine whether a charging method change condition is satisfied. For example, the condition for changing the charging method is that the distance between the wireless power transmitter 100 and the electronic device 150 is less than or equal to the threshold and exceeds the threshold, or the wireless power transmitter 100 and the electronic device 150 are above the threshold. ) May be above the threshold and then decrease below the threshold. The user may check the UI and move the electronic device 150 to the wireless power transmitter 100. Accordingly, the electronic device 150 may be located relatively close to the wireless power transmission device 100. The wireless power transmitter 100 or the electronic device 150 may determine that the distance between the wireless power transmitter 100 and the electronic device 150 is equal to or less than a threshold. In operation 1107, the wireless power transmitter 100 or the electronic device 150 may perform charging according to the second charging method.

13 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure. The embodiment of FIG. 13 will be described in more detail with reference to FIG. 14. 14 illustrates information associated with a charging scheme displayed on an electronic device according to various embodiments of the present disclosure.

In operation 1301, the wireless power transmitter 100 or the electronic device 150 may perform charging according to the first charging method. For example, the wireless power transmitter 100 may transmit power through a plurality of patch antennas according to the electromagnetic wave method, and the electronic device 150 may receive power through the plurality of patch antennas according to the electromagnetic wave method. have. In operation 1303, the wireless power transmitter 100 or the electronic device 150 may display information associated with the first charging scheme and information associated with the second charging scheme. For example, as shown in FIG. 14, the electronic device 150 may display

information

1401 and 1403 associated with charging methods. The information 1401 associated with the first charging method may include identification information indicating an electromagnetic wave method (for example, remote charging), information indicating whether the battery is being charged according to the electromagnetic wave method (for example, charging), information indicating a charging rate (for example, 83), and the like. %), Expected buffer time (e.g., complete charging after about 59 minutes), and the like. The information 1402 associated with the second charging method may include identification information indicating a resonance method (eg, resonant fast charging), information indicating whether the resonance type charging is possible (eg, chargeable), and an estimated time for buffering (eg, after about 9 minutes). Complete charging), and the like. Although not shown, the wireless power transmission apparatus 100 may also control to display information related to a charging scheme directly or through another electronic device such as a TV. Alternatively, the magnitude, sensitivity, etc. of the charging power may also be displayed.

In operation 1305, the wireless power transmitter 100 or the electronic device 150 may determine whether a wireless charging method change command is input. For example, in FIG. 14B, the user may specify information 1402 associated with the second charging scheme. The electronic device 150 may preset the information associated with the charging scheme to be changed by changing the charging scheme in the designated manner. Accordingly, in response to designation of the information 1402 associated with the second charging method, the electronic device 150 may change the charging method from the first charging method to the second charging method. In operation 1307, the electronic device 150 may perform charging according to the second charging method.

In various embodiments of the present disclosure, the electronic device 150 may display the information as shown in FIG. 14 as an animation at the start of charging or may display the information as shown in the status bar. The electronic device 150 may display related information even while executing another application.

In operation 1501, the wireless power transmitter 100 or the electronic device 150 may perform charging according to the first charging method. For example, the wireless power transmitter 100 may transmit power through a plurality of patch antennas according to the electromagnetic wave method, and the electronic device 150 may receive power through the plurality of patch antennas according to the electromagnetic wave method. have. In operation 1503, the wireless power transmitter 100 or the electronic device 150 may include a distance between the wireless power transmitter 100 and the electronic device 150, a magnitude of energy received from the electronic device 150, an efficiency, At least one of violating protocols or affecting the living body can be monitored.

In operation 1505, the wireless power transmitter 100 or the electronic device 150 may determine whether the second charging method is more advantageous than the first charging method, based on the monitoring result. Examples in which the wireless power transmitter 100 or the electronic device 150 determines that the second charging method is advantageous to the first charging method will be described in more detail with reference to FIGS. 16A to 16C. If it is determined that the second charging method is advantageous over the first charging method, the wireless power transmitter 100 or the electronic device 150 may perform charging according to the second charging method in operation 1507.

Referring to FIG. 16A, the wireless power transmitter 100 is set to charge according to a resonance method when the electronic device 150 is located in the first range 1600, and the electronic device 150 outside the first range 1600. When is located may be set to charge according to the electromagnetic wave method. The wireless power transmission apparatus 100 may determine that the electronic device 150 is located within the first range 1600 at the first time point. The wireless power transmitter 100 may transmit power to the electronic device 150 by forming a magnetic field 1611 through a coil (or a resonant circuit) according to a resonance method. The wireless power transmitter 100 may monitor a distance between the wireless power transmitter 100 and the electronic device 150.

At a second time point, the electronic device 150 may move 1601 out of the first range 600. For example, the user may move with the electronic device 150 out of the first range 600. The wireless power transmitter 100 may determine that the electronic device 150 is located outside the first range 1600 by increasing the distance between the wireless power transmitter 100 and the electronic device 150. Accordingly, the wireless power transmitter 100 may determine that the electronic device 150 is charged by the electromagnetic wave method. The apparatus 100 for transmitting power wirelessly may transmit power to the electronic device 150 by forming an RF wave 1612 through a plurality of patch antennas corresponding to electromagnetic waves.

Referring to FIG. 16B, the wireless power transmitter 100 is set to charge according to a resonance method when the electronic device 150 is located in the first range 1600, and the electronic device 150 outside the first range 1600. When is located may be set to charge according to the electromagnetic wave method. At a first time point, the wireless power transmitter 100 may identify another electronic device 1620 to perform charging. As the other electronic device 1620 is included in the first range 1600, the wireless power transmitter 100 may charge the other electronic device 1620 in a resonant manner. The apparatus 100 for transmitting power wirelessly may transmit power to another electronic device 1620 by forming a magnetic field 1621 through a coil (or a resonant circuit). At a second time point, the electronic device 150 may be disposed within the first range 1600. The wireless power transmitter 100 may determine that the electronic device 150 is disposed within the first range 1600, and thus may select the resonance method as the charging method of the electronic device 150. The apparatus 100 for transmitting power wirelessly may determine whether a protocol is violated when charging in a resonance manner. For example, the standard of the resonance method may suggest a minimum value of the charging power to be received by the wireless power receiver. When the wireless power transmitter 100 charges the electronic device 150 and the other electronic device 1620 at the same time in a resonance manner, the wireless power transmitter 100 may determine that power less than the minimum value of the power suggested to the electronic device 150 is transmitted. have. Accordingly, the wireless power transmission apparatus 100 may select to charge the electronic device 150 by an electromagnetic wave method. The apparatus 100 for transmitting power wirelessly may transmit power to the electronic device 150 by forming an RF wave 1622 through a plurality of patch antennas.

At a third time point, the other electronic device 1620 may move outside the first range 1600. The apparatus 100 for transmitting power wirelessly may monitor whether a violation of protocol is observed. For example, when the wireless power transmitter 100 charges the electronic device 150 alone, the wireless power transmitter 100 may determine that power equal to or greater than the minimum value of the suggested power can be transmitted to the electronic device 150. The apparatus 100 for transmitting power wirelessly may charge the electronic device 150 in a resonance manner based on the fact that the protocol does not violate even when charging is performed in a resonance manner. The wireless power transmitter 100 may transmit power to the electronic device 150 by forming a magnetic field 1621 through a coil (or a resonant circuit).

Alternatively, the wireless power transmitter 100 uses the resonance method at the second time point, based on the transmission efficiency of the power transmitted from the wireless power transmitter 100 to the electronic device 150 being less than or equal to the threshold value. It can be charged according to the electromagnetic wave method. The wireless power transmitter 100 may monitor a transmission efficiency corresponding to the resonance method. For example, the wireless power transmitter 100 periodically performs charging according to a resonance method, and transmit efficiency according to the resonance method based on the received strength or the magnitude of the detected current, voltage, or power from the electronic device 100. You can also monitor At a third time point when the other electronic device 1620 disappears, the wireless power transmitter 100 may determine that the transmission efficiency of power transmitted from the wireless power transmitter 100 to the electronic device 150 exceeds a threshold value according to a resonance method. Can be. The wireless power transmitter 100 may charge the electronic device 150 by changing the charging method to a resonance method and forming a magnetic field 1621 in response thereto.

Referring to FIG. 16C, the wireless power transmitter 100 is set to charge according to a resonance method when the electronic device 150 is located in the first range 1600, and the electronic device 150 outside the first range 1600. When is located may be set to charge according to the electromagnetic wave method. At a first time point, the electronic device 150 may be disposed in the first range 1600. At a first point in time, the living body 1632 may be located within the first range 1600. The wireless power transmission apparatus 100 may select the charging method as the resonance method according to the arrangement of the electronic device 150 in the first range 1600. The wireless power transmitter 100 may determine that the magnetic field affects the living body 1632 when the magnetic field is formed by the resonance method. Accordingly, the wireless power transmitter 100 may select the charging method as the electromagnetic wave method so as not to affect the living body 1632. The apparatus 100 for transmitting power wirelessly may beamform the RF wave 1631 at a location of the electronic device 150, and the living body 1632 may not be affected by a magnetic field or an electric field.

The apparatus 100 for transmitting power wirelessly may monitor whether a living body is affected. At a second time point, the living body 1632 may move out of the first range 1600. For example, the apparatus 100 for transmitting power wirelessly may determine that the living body 1632 moves out of the first range 1600 at a second time point according to vision recognition or radar recognition, and the apparatus 100 for transmitting power wirelessly. There is no limitation on how to determine whether the living body 1632 moves. The apparatus 100 for transmitting power wirelessly may confirm that the magnetic field is not affected even when the magnetic field is formed by the resonance method, and the resonance method may be selected as the charging method. The wireless power transmitter 100 may transmit power to the electronic device 150 by forming a magnetic field 1633 according to a resonance method.

Although the wireless power transmission apparatus 100 has been described in connection with FIGS. 16A-16C as changing the monitoring and charging scheme, this is merely illustrative and, as described above, the electronic device 100 may change the monitoring and charging scheme. It can also be done.

In operation 1701, the wireless power transmitter 100 may detect the first electronic device 1701. In operation 1703, the wireless power transmitter 100 may determine to charge the first electronic device according to the first charging method. As described above, the wireless power transmitter 100 may include a distance between the wireless power transmitter 100 and the first electronic device 1701, and the magnitude, efficiency, and protocol of the energy received by the first electronic device 1701. The first charging method may be selected based on at least one of violating or affecting the living body. In operation 1705, the apparatus 100 for transmitting power wirelessly may transmit energy using a power transmission circuit corresponding to the first charging scheme.

In operation 1707, the wireless power transmitter 100 may detect the second electronic device 1702. In operation 1709, the wireless power transmitter 100 may select one of the first charging method and the second charging method in consideration of charging of the first electronic device. For example, the wireless power transmitter 100 violates the distance between the wireless power transmitter 100 and the second electronic device 1702, the amount of energy received from the second electronic device 1702, the efficiency, and the protocol. The charging method of the second electronic device 1702 may be selected as the first charging method based on at least one of whether or not the biological influence. When the wireless power transmitter 100 charges both the first electronic device 1701 and the second electronic device 1702 according to the first charging method, it may determine that sufficient power cannot be transmitted to both electronic devices. Can be. Accordingly, the wireless power transmitter 100 may select the charging method of the second electronic device 1702 as the second charging method. In operation 1711, the wireless power transmitter 100 may transmit energy using a power transmitter circuit corresponding to the selected charging scheme. The apparatus 100 for transmitting power wirelessly may allocate an identifier ID for each of the

electronic devices

1701 and 1702, and manage a charging method, a charging time, a charging amount, and the like for each identifier. The apparatus 100 for transmitting power wirelessly may perform identifier recognition according to a received command.

In operation 1801, the wireless power transmitter 100 may simultaneously charge the first electronic device and the second electronic device. In operation 1803, the wireless power transmitter 100 may detect completion of charging of the first electronic device or the number of times of the first electronic device. In operation 1805, the wireless power transmitter 100 may determine the charging method of the second electronic device again. For example, the wireless power transmitter 100 may charge the first electronic device using a first charging method and charge the second electronic device using a second charging method. The wireless power transmission apparatus 100 may detect the number of times of the first electronic device, and determine whether to charge the second electronic device according to the first charging method or the second charging method. For example, the wireless power transmitter 100 may determine that it is more efficient to charge the second electronic device according to the first charging method, and accordingly, the charging method of the second electronic device may be determined as the first charging method. Can be changed. In operation 1807, the apparatus 100 for transmitting power wirelessly may transmit energy using a power transmission circuit corresponding to the determined charging method. According to various embodiments of the present disclosure, the apparatus 100 for transmitting power wirelessly may perform auxiliary charging when the first electronic device is fully charged. The apparatus 100 for transmitting power wirelessly may transmit supplemental power smaller than the size of the existing charging power to the first electronic device, thereby enabling the first electronic device to remain in a buffer state without being discharged again after the charging is completed. It may be.

In operation 1901, the wireless power transmitter 100 may detect the electronic device 150. In operation 1903, the apparatus 100 for transmitting power wirelessly may determine the efficiency according to the first charging scheme and the efficiency according to the second charging scheme. In operation 1905, the apparatus 100 for transmitting power wirelessly may determine whether the efficiency of the first charging scheme exceeds the threshold efficiency. If it is determined that the efficiency of the first charging scheme exceeds the threshold efficiency, in operation 1907, the wireless power transmitter 100 may determine whether the efficiency of the second charging scheme exceeds the threshold efficiency. If it is determined that the efficiency of the first charging method exceeds the threshold efficiency and the efficiency of the second charging method exceeds the threshold efficiency, in operation 1909, the wireless power transmitter 100 may determine the first charging method and the second charging method. It may be determined that the electronic device 150 is charged at the same time. If it is determined that the first charging efficiency exceeds the threshold efficiency and the second charging efficiency falls below the threshold efficiency, in operation 1911, the wireless power transmitter 100 may charge the electronic device 150 according to the first charging method. It can be judged that. If it is determined in operation 1905 that the efficiency of the first charging scheme is less than or equal to the threshold efficiency, in operation 1913, the wireless power transmitter 100 may determine whether the efficiency of the second charging scheme exceeds the threshold efficiency. If the first charging efficiency is less than or equal to the threshold efficiency and the second charging efficiency exceeds the critical efficiency, in operation 1915, the wireless power transmitter 100 may determine that the electronic device is charged according to the second charging method. . If the first charging efficiency is less than or equal to the threshold efficiency, and the second charging efficiency is less than or equal to the threshold efficiency, the wireless power transmitter 100 compares the efficiency of the first charging method with the efficiency of the second charging method in operation 1917. It may be determined that the electronic device 150 is charged according to a higher efficiency charging method. In operation 1919, the wireless power transmitter 100 may transmit energy using a power transmission circuit corresponding to the determined charging scheme. For example, when it is determined to perform charging using both the first charging method and the second charging method, the wireless power transmitter 100 forms an RF wave using a plurality of patch antennas, and forms a coil (or, Power can be transmitted to the electronic device 150 by forming a magnetic field using a resonance circuit.

The apparatus 100 for transmitting power wirelessly is set to perform charging according to a resonance method with respect to an electronic device included in the first range 2000, and according to an electromagnetic wave method with respect to an electronic device located outside the first range 200. It can be set to perform charging. The wireless power transmitter 100 may transmit power to the TV 2002 by forming the magnetic field 2011 in accordance with a resonance method. The wireless power transmitter 100 may charge the first electronic device 2001 using both a resonance method and an electromagnetic wave method. The wireless power transmitter 100 may transmit power to the first electronic device 2001 by forming a magnetic field 2012 in accordance with a resonance method and forming an RF wave 2013 in accordance with an electromagnetic wave method. The apparatus 100 for transmitting power wirelessly may transmit power to the second electronic device 2003 by forming an RF wave 2014 according to an electromagnetic wave method. The wireless power transmitter 100 may form an RF wave 2013 by performing beamforming at a location of the first electronic device 2001, and perform RF beamforming at a location of the second electronic device 2003. Wave 2014 may be formed.

Referring to FIG. 20B, in various embodiments of the present disclosure, the apparatus 100 for transmitting power wirelessly may determine positions of a plurality of

electronic devices

2001 and 2003. For example, the wireless power transmitter 100 determines the direction of the electronic device 2001 based on the communication signal from the first electronic device 2001, and based on the communication signal from the second electronic device 2003. The direction of the electronic device 2003 can be determined. The apparatus 100 for transmitting power wirelessly may determine patch antenna groups 2221 and 2222 for charging each of the plurality of

electronic devices

2001 and 2003. The wireless power transmitter 100 may wirelessly charge the plurality of

electronic devices

2001 and 2003 using the patch antenna groups 2221 and 2222. The apparatus 100 for transmitting power wirelessly may perform wireless charging using the patch antenna group 2221. Also, the apparatus 100 for transmitting power wirelessly may perform wireless charging using the patch antenna group 2222.

In another embodiment, as described above, the wireless power transmitter 100 may select patch antenna groups 2221 and 2222 according to directions of the plurality of

electronic devices

2001 and 2003, respectively. For example, with respect to the first electronic device 2001 determined to be disposed on the left side of the wireless power transmitter 100 relatively, the patch antenna group 2221 may be selected on the left side, and the wireless power may be selected. For the second electronic device 2003 that is determined to be disposed on the right side of the transmitting device 100, the patch antenna group 2222 that is disposed on the right side may be selected. The patch antenna group 2221 may form an RF wave 2013 for charging the first electronic device 2001, and the patch antenna group 2222 may form an RF wave for charging the second electronic device 2003. 2014).

In addition, the wireless power transmitter 100 may select the number of patch antennas included in the patch antenna group based on the rated power of each of the plurality of

electronic devices

2001 and 2003. For example, a relatively large number of patch antennas can be allocated to an electronic device having a relatively high rated power. As described above, the plurality of

electronic devices

2001 and 2003 may be simultaneously charged.

Referring to FIG. 20C, the apparatus 100 for transmitting power wirelessly may determine directions of the plurality of

electronic devices

2001 and 2003. The wireless power transmitter 100 may distribute a charging time for charging each of the plurality of

electronic devices

2001 and 2003 based on the distributed charging time. For example, during the first time t1, each of the patch antennas 2223 may be controlled to form a sub-RF wave to form an RF wave 2013 for charging the first electronic device 2001. The RF wave 2014 for charging the second electronic device 2003 may be formed using the entire patch antenna 2223 for two hours t2. In various embodiments of the present disclosure, the wireless power transmission apparatus 100 may form an RF wave by alternating a plurality of

electronic devices

2001 and 2003.

In operation 2101, the electronic device 150 may detect the wireless power transmission device 100. In operation 2103, the electronic device 150 may receive a quick charge command. For example, the electronic device 150 may display a user interface for inputting a quick charge command and may receive a quick charge command through the user interface. In another embodiment, when the fast charging start condition is detected, the electronic device 150 may start the fast charging correspondingly. In operation 2105, the electronic device 150 may transmit a quick charge request.

In operation 2107, the wireless power transmitter 100 may determine that the electronic device 150 is charged according to a plurality of charging methods in response to the received fast charge request. In operation 2109, the wireless power transmission apparatus 100 may transmit energy through a plurality of power transmission circuits corresponding to a plurality of charging schemes. In operation 2111, the electronic device 150 may receive energy through a plurality of power receiving circuits corresponding to a plurality of charging schemes. Accordingly, the electronic device 150 may receive a relatively large amount of power.

Referring to FIG. 22A, the apparatus 100 for transmitting power wirelessly may be included in the data transmitting and receiving apparatus 2200. The data transmitting and receiving device 2200 may transmit and receive data to and from the TV 2201 wirelessly. For example, the data transmission / reception apparatus 2200 may transmit at least one of a video signal or an audio signal received from the outside to the TV 2201 wirelessly. The apparatus 100 for transmitting power wirelessly may have a shape extending left and right according to the shape of the data transmitting and receiving device 2200. In addition, the wireless power transmitter 100 included in the data transmission / reception apparatus 2200 may wirelessly transmit power to the TV 2201. Accordingly, the TV 2201 may wirelessly receive at least one of power and a video signal or an audio signal without a wired connection. For example, the wireless power transmitter 100 can transmit power to the TV 2201 by forming the

magnetic fields

2211, 2212, and 2213 according to a resonance method. The TV 2201 may include a wireless power receiver 2203, and the wireless power receiver 2203 may convert, for example,

magnetic fields

2211, 2212, and 2213 generated in the vicinity into current, voltage, or power. Can be. For example, the wireless power receiver 2203 may have a shape extended left and right to correspond to the shape of the wireless power transmitter 100. In various embodiments, the apparatus 100 for transmitting power wirelessly may perform charging according to an electromagnetic wave scheme, and may form the RF wave 2214 with respect to a location of the electronic device 2202 which is located at a relatively long distance. Can be. On the other hand, when the TV 2201 is turned off, the wireless power transmitter 100 may charge the electronic device 2202 by forming a magnetic field.

Referring to FIG. 22B, the wireless power transmission apparatus 100 may be included in the audio device 2214. The apparatus 100 for transmitting power wirelessly may have a shape extending up and down according to the shape of the audio device 2214. The wireless power receiver 2205 included in the TV 2201 may have a shape that extends up and down according to the shape of the wireless power transmitter 100. The wireless power transmitter 100 may transmit power to the wireless power receiver 2205 by forming the magnetic field 2215. The apparatus 100 for transmitting power wirelessly may transmit power to the electronic device 2202 by forming an RF wave 2216.

Referring to FIG. 22C, the apparatus 100 for transmitting power wirelessly may include a power transmission circuit 2231 according to a resonance method or an induction method, a control circuit 2232, and a power transmission circuit 2233 according to an electromagnetic wave method. . As described above, the power transmission circuit 2231 may include, for example, at least one of a power source, amplifying circuit, coil, or capacitor that provides power having a frequency of 100 to 205 kHz, or 6.78 MHz. have. The power transmission circuit 2233 may include, for example, at least one of a power source, an amplifier circuit, a distribution circuit, a phase shifter, or a patch antenna array that provides power having a frequency of 5.8 GHz. The power transmission circuit 2233 may be arranged to be formed toward the RF wave 2234 in a relatively upward direction. When the wireless power transmitter 100 is disposed on the floor, for example, the electronic device 150 is more likely to be positioned above the wireless power transmitter 100. Accordingly, the patch antenna array may be inclined with respect to the bottom surface so that the RF wave 2234 may face upward. The control circuit 2232 may include, for example, a communication circuit or a processor, and may perform communication with the electronic device 150 or control power transmission of the power transmission circuit 2231 or the power transmission circuit 2233. Can be. Referring to FIG. 22D, the power transmission circuit 2233 may be disposed to be substantially perpendicular to the floor. For example, when the height at which the wireless power transmitter 100 is disposed is similar to the height at which the electronic device 150 is mainly disposed, the RF wave 2234 may be formed parallel to the floor. As shown in FIGS. 22C and 22D, the arrangement direction of the patch antenna array of the electromagnetic wave method may vary according to the arrangement position of the wireless power transmitter 100. The wireless power transmission apparatus 100 according to various embodiments of the present disclosure may include an actuator for mechanically adjusting an arrangement direction of a patch antenna array. The apparatus 100 for transmitting power wirelessly may mechanically change the arrangement direction of the patch antenna array according to the position or direction in which the electronic device is located.

Referring to FIG. 22E, the TV 2240 may include a display 2241 and a main body 2242. The body 2242 may include a power transmission circuit capable of generating a magnetic field 2245 and a power transmission circuit capable of generating an RF wave 2246. Accordingly, the

electronic devices

2243 and 2244 may be charged using the magnetic field 2245 and the RF wave 2246 formed from the main body 2242. Referring to FIG. 22F, the TV 2240 may be supported by the support structure 2250. The wireless power transmission apparatus 100 disposed in the support structure 2250 may include a power transmission circuit that generates a magnetic field 2247 and a power transmission circuit that forms an RF wave 2248. Accordingly, the

electronic devices

2243 and 2244 may be charged using the magnetic field 2247 and the RF wave 2248 formed from the wireless power transmitter 100. There is no limitation on the arrangement of the wireless power transmitter 100, for example, the wireless power transmitter 100 may be disposed on a desk or under a desk, and may be placed on various desks such as a smartphone, a keyboard, and a mouse. Electronic devices located at may be charged based on at least one of a resonance method, an induction method, and an electromagnetic wave method.

As illustrated in FIG. 23, the first region 2310 having a distance from the wireless power transmitter 100 less than or equal to the first distance 2311 may be set as a short range charging region. The second area 2320, wherein the distance of the wireless power transmitter 100 exceeds the first distance 2311 and is less than or equal to the second distance 2311, may be set as a remote charging area. In the short range charging region, the wireless power transmitter 100 may charge the electronic device 2401 by forming the magnetic field 2230 according to a resonance method or an induction method. In the remote charging region, the wireless power transmitter 100 may charge the electronic device 2342 by forming an RF wave 2331 according to an electromagnetic wave method. In various embodiments of the present disclosure, the wireless power transmission apparatus 100 may include, for example, a range in which the efficiency of the resonance method is higher than the efficiency of the electromagnetic wave method, and the intensity of the power received by the electronic device by the resonance method is determined by the electromagnetic wave method. A range higher than the intensity of power received by the electronic device may be set as the first area 2310. Alternatively, the wireless power transmitter 100 may include a range in which power transmission by a resonance method satisfies an optimum EMI condition, or a range in which the magnitude of the magnetic field is less than or equal to a predetermined value (for example, 6.25 μT), or the like. Can be set with In various embodiments, the apparatus 100 for transmitting power wirelessly may determine the first distance 2311 according to the type of the electronic device. For example, for an electronic device including a coil having a relatively high reactance, such as a TV, the wireless power transmitter 100 may set the first distance 2311 relatively large. Alternatively, for an electronic device including a coil having a relatively low reactance, such as a smart phone, the wireless power transmitter 100 may set the first distance 2311 to be relatively small.

24A is a plan view illustrating a position of a coil and patch antenna array according to various embodiments of the present disclosure. As shown in FIG. 24A, a coil 2401 may be positioned around a patch antenna array 2402 including a plurality of patch antennas. Coil 2401 is shown as being wound twice, but this is merely exemplary and the number of turns of coil 2401 is unlimited. 24B is a first side view as viewed from a first direction, FIG. 24C is a perspective view, and FIG. 24D is a second side view as viewed from a second direction for describing the position of the coil and patch antenna array according to various embodiments of the present disclosure. Illustrated. As shown in FIGS. 24B to 24D, a portion extending in the left and right directions of the coil 2401 may have a curved shape. Portions of the coils 2401 having a curved shape may be spaced apart from the patch antenna array 2402 by a predetermined distance. Accordingly, the magnetic field by the coil 2401 and the RF wave from the patch antenna array 2402 may not be interfered with. As shown in FIG. 24E, the RF wave 2441 from the patch antenna array 2402 can be well formed without the influence of the coil 2401, and as shown in FIG. 24F, formed in the coil 2401. The magnetic field 2442 can be well formed without the influence of the patch antenna array 2402. An electronic device according to various embodiments of the present disclosure may also include a coil 2401 and a patch antenna array 2402. In various embodiments of the present disclosure, the coil 2401 may be implemented in various forms such as a circle and an ellipse, and the patch antenna array may be manufactured in a relatively small size, and may be implemented in a flip type. It may be.

25 is a conceptual diagram illustrating a position of a coil and patch antenna array according to various embodiments of the present disclosure. As illustrated in FIG. 25, a coil 2500 may be disposed on the first surface 2510. The patch antenna array 2501 may be disposed on the second surface 2511, and the patch antenna array 2502 may be disposed on the third surface 2512. The first angle θ1 formed by the first surface 2510 and the second surface 2511 and the second angle θ2 formed by the first surface 2510 and the third surface 2512 may be the same or different. . At least one of the first angle θ1 or the second angle θ2 may be mechanically adjusted by the processor, and the wireless power transmission apparatus 100 may further include an actuator for adjusting the angles.

Each of the above-described components of the electronic device may be composed of one or more components, and the name of the corresponding component may vary according to the type of the electronic device. In various embodiments, the electronic device may be configured to include at least one of the above-described components, and some components may be omitted or further include other additional components. In addition, some of the components of the electronic device according to various embodiments of the present disclosure may be combined to form a single entity, and thus may perform the same functions of the corresponding components before being combined.

As used herein, the term “module” may refer to a unit that includes one or a combination of two or more of hardware, software, or firmware. A "module" may be interchangeably used with terms such as, for example, unit, logic, logical block, component, or circuit. The module may be a minimum unit or part of an integrally constructed part. The module may be a minimum unit or part of performing one or more functions. The "module" can be implemented mechanically or electronically. For example, a “module” is one of application-specific integrated circuit (ASIC) chips, field-programmable gate arrays (FPGAs), or programmable-logic devices that perform certain operations, known or developed in the future. It may include at least one.

At least a portion of an apparatus (e.g., modules or functions thereof) or method (e.g., operations) according to various embodiments may be, for example, computer-readable storage media in the form of a program module. It can be implemented as a command stored in. When the command is executed by a processor, the one or more processors may perform a function corresponding to the command. The computer-readable storage medium may be, for example, a memory.

According to various embodiments of the present invention, a storage medium storing instructions, wherein the instructions are configured to cause the at least one processor to perform at least one operation when executed by at least one processor, the at least one The operation of detecting may include: detecting an electronic device; Selecting at least one of a plurality of patch antennas or coils as a power transmission circuit for transmitting power for charging the electronic device; And controlling to transmit the power through at least one of the plurality of patch antennas or the coils according to the selection.

According to various embodiments of the present invention, a storage medium storing instructions, wherein the instructions are configured to cause the at least one processor to perform at least one operation when executed by at least one processor, the at least one The operation may include selecting at least one of the plurality of patch antennas or coils as a power receiving circuit for receiving power from the wireless power transmitter; Transmitting information about the selected power receiving circuit to the wireless power transmitter; And receiving the power through at least one of the plurality of patch antennas or the coils according to the selection.

As described above, the instructions may be stored in an external server or may be downloaded and installed in an electronic device such as a wireless power transmitter. That is, the external server according to various embodiments of the present disclosure may store instructions that can be downloaded by the wireless power transmitter.

The computer-readable recording medium may include a hard disk, a floppy disk, a magnetic medium (for example, magnetic tape), an optical media (for example, a compact disc read only memory (CD-ROM), a DVD). (digital versatile disc), magneto-optical media (such as floptical disk), hardware devices (such as read only memory, random access memory (RAM), or flash memory Etc. Also, the program instructions may include not only machine code generated by a compiler, but also high-level language code executable by a computer using an interpreter, etc. The above-described hardware device may include It can be configured to operate as one or more software modules to perform the operations of the various embodiments, and vice versa.

Modules or program modules according to various embodiments may include at least one or more of the above components, some may be omitted, or further include other components. Operations performed by modules, program modules, or other components in accordance with various embodiments may be executed in a sequential, parallel, repetitive, or heuristic manner. In addition, some operations may be executed in a different order, may be omitted, or other operations may be added.

And the embodiments disclosed in this document are presented for the purpose of explanation and understanding of the disclosed, technical content, and do not limit the scope of the present disclosure. Accordingly, the scope of the present disclosure should be construed to include all changes or various other embodiments based on the technical spirit of the present disclosure.

Claims

A plurality of patch antennas;

coil; And

Processor

Including,

The processor,

Detect electronic devices,

Selecting at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device,

And wirelessly transmit the power through at least one of the plurality of patch antennas or the coils according to the selection.
The method of claim 1,

The processor,

Determine a distance between the wireless power transmitter and the electronic device,

And selecting at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device based on the distance.
The method of claim 2,

The processor,

If the distance exceeds a threshold distance, select the plurality of patch antennas as a power transmission circuit for transmitting power for charging the electronic device, or

And if the distance is less than or equal to the threshold distance, selecting the coil as a power transmission circuit for transmitting power for charging the electronic device.
The method of claim 3, wherein

The processor,

Select a power transmission circuit for transmitting power for charging the electronic device using the predetermined threshold distance, or transmit power for charging the electronic device using the threshold distance corresponding to the electronic device; A wireless power transmitter for selecting as a power transmitter circuit.
The method of claim 1,

The processor,

In response to the detection of the electronic device, controlling to transmit a first test power through the plurality of patch antennas,

In response to detection of the electronic device, controlling to transmit a second test power through the coil.
The method of claim 5, wherein

Communication circuit

More,

The electronic device detects a magnitude at which the first test power is received and a magnitude at which the second test power is received, and determines at least one of the plurality of patch antennas or the coils according to the detection result. Selects a power transmission circuit for transmitting power for charging, transmits information about a power transmission circuit for transmitting power for charging the selected electronic device, to a communication circuit of the wireless power transmission device,

And the processor selects at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device, based on the information received through the communication circuit.
The method of claim 5, wherein

Communication circuit

More,

The processor,

Via the communication circuit, receive first information about a magnitude at which the first test power is received from the electronic device and second information on a magnitude at which the second test power is received at the electronic device,

And at least one of the plurality of patch antennas or the coils is selected as a power transmission circuit for transmitting power for charging the electronic device using the first information and the second information.
The method of claim 5, wherein

Communication circuit

More,

The processor transmits the transmission intensity of the first test power and the transmission intensity of the second test power to the electronic device through the communication circuit,

The electronic device detects the reception strength of the first test power and the second reception strength of the test power, and is based on the transmission strength of the first test power and the reception strength of the first test power. Determine the transmission efficiency of power, determine the transmission efficiency of the second test power based on the transmission intensity of the second test power and the reception intensity of the second test power, and determine the transmission efficiency of the first test power and the At least one of the plurality of patch antennas or the coils is selected as a power transmission circuit for transmitting power for charging the electronic device using a second test power, and the power for charging the selected electronic device is transmitted. Transmits information about a power transmission circuit to the communication circuit of the wireless power transmission apparatus,

The processor selects at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device, based on the information received through the communication circuit. Device.
The method of claim 5, wherein

Communication circuit

More,

The processor,

Receive, via the communication circuit, a reception strength at the electronic device of the first test power and a reception strength at the electronic device of the second test power;

The transmission efficiency of the first test power is determined based on the transmission intensity of the first test power and the reception intensity of the first test power, and the transmission intensity of the second test power and the reception intensity of the second test power are determined. On the basis of the transmission efficiency of the second test power,

Wireless power for selecting at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device using the transmission efficiency of the first test power and the second test power Transmitting device.
The method of claim 5, wherein

The processor,

In accordance with the transmission of the first test power and the transmission of the second test power, it is determined whether the specified protocol is violated,

And at least one of the plurality of patch antennas or the coils is selected as a power transmission circuit for transmitting power for charging the electronic device according to the determination result.
The method of claim 1,

The processor,

Detecting a living body located near the wireless power transmitter;

And at least one of the plurality of patch antennas or the coils is selected as a power transmission circuit for transmitting power for charging the electronic device, based on whether or not the influence on the living body is affected.
The method of claim 1,

Communication circuit

More,

The processor,

Receive information about the electronic device through the communication circuit,

And at least one of the plurality of patch antennas or the coils is selected as a power transmission circuit for transmitting power for charging the electronic device by using the information about the electronic device.
The method of claim 1,

Communication circuit

More,

The processor,

Receive information on the charging method designated by the user of the electronic device through the communication circuit,

And based on the received information, selecting at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device.
The method of claim 1,

Communication circuit

More,

The processor transmits information about a power transmission circuit for transmitting power for charging the selected electronic device to the electronic device.

And the electronic device is configured to receive the power by using a wireless power receiver circuit corresponding to the received information.
The method of claim 1,

The processor,

At a first point in time, control to transmit the power through the plurality of patch antennas,

And a second power source, controlling to transmit the power through the coil.