KR102467174B1 - Charging device of universal serial bus type and control method of charging device - Google Patents

Abstract

According to various embodiments, a USB-type charging device includes a USB charging circuit that obtains charging voltage information and status information of the electronic device from the electronic device through communication with the electronic device, and status information of the charging device. and a control circuit for controlling an output voltage of a rectifier circuit based on the electronic device, and a communication unit for communication between the control circuit and the USB charging circuit, wherein the USB charging circuit comprises the electronic device based on charging voltage information of the electronic device. Provides a voltage corresponding to the request of the electronic device to control charging of the electronic device, determines state information of the charging device based on state information of the electronic device, and determines state information of the charging device based on the state information of the charging device. It is set to control the control circuit to change power supplied to the charging device, and the charging voltage information of the electronic device includes a list including types of voltages that can be charged in the electronic device received from the charging device. is information selected from , and the state information of the electronic device is information including at least one of charging state information of the electronic device determined by the electronic device, power state information of the electronic device, or connection information of the electronic device. Other embodiments are possible.

Description

USB type charging device and control method of the charging device {CHARGING DEVICE OF UNIVERSAL SERIAL BUS TYPE AND CONTROL METHOD OF CHARGING DEVICE}

Various embodiments relate to a USB-type charging device capable of changing standby power in the USB-type charging device and a control method of the charging device.

An adapter using USB Power Delivery technology maintains the final output power at 0V while internally maintaining basic power to supply power immediately when connected to an electronic device.

In addition, the adapter detects the connection of the electronic device, and in order to directly supply power when connected to the electronic device, power is always supplied to the inside of the adapter while connected to an outlet that provides voltage. .

An adapter using USB Power Delivery technology consumes a lot of standby power (e.g., 30 mV) by supplying more power than necessary to the inside of the adapter when connected to an outlet even when the electronic device is not connected. are doing

According to various embodiments, a USB-type charging device includes a USB charging circuit that receives charging voltage information and status information of the electronic device from the electronic device through communication with the electronic device, based on the status information of the charging device. A control circuit for controlling an output voltage of the rectifier circuit, and an optical communication unit for communication between the control circuit and the USB charging circuit, wherein the USB charging circuit is configured to perform the electronic device based on charging voltage information of the electronic device. Provides a voltage corresponding to the request of the electronic device to control charging of the electronic device, determines state information of the charging device based on state information of the electronic device, and determines state information of the charging device based on the state information of the charging device. It is set to control the control circuit to change the power supplied to the charging device, and the charging voltage information of the electronic device is from a list including types of voltages that can be charged in the electronic device received from the charging device. The selected information, and the state information of the electronic device is information including at least one of charging state information of the electronic device determined by the electronic device, power state information of the electronic device, or connection information of the electronic device.

According to various embodiments, a USB-type charging device includes a USB charging circuit that receives charging voltage information and status information of the electronic device from the electronic device through communication with the electronic device, and status information of the charging device. based on a control circuit that controls the output voltage of the rectifier circuit, and a light emitting unit that transmits the status information of the charging device to the control circuit in the USB charging circuit, and the status information of the charging device transmitted from the USB charging circuit. and a communication unit including a light receiving unit that receives and provides the light to the control circuit, wherein the USB charging circuit provides a voltage corresponding to a request of the electronic device to the electronic device based on charging voltage information of the electronic device. Control to charge the electronic device, determine state information of the charging device based on the state information of the electronic device, and control the control circuit based on the state information of the charging device to control power supplied to the charging device. set to change, the charging voltage information of the electronic device is information selected from a list including the type of voltage that can be charged by the electronic device received from the charging device, and the state information of the electronic device is Information including at least one of charging state information of the electronic device determined by the device, power state information of the electronic device, and connection information of the electronic device.

According to various embodiments, a USB type charging device includes a USB charging circuit that receives charging voltage information and state information of the electronic device from the electronic device through a designated line of a USB Type-C connector, and a charging device. A control circuit for controlling an output voltage of a rectifier circuit based on state information, and an optical communication unit for communication between the control circuit and the USB charging circuit, wherein the USB charging circuit is based on charging voltage information of the electronic device. Provides a voltage corresponding to the request of the electronic device to the electronic device to control charging of the electronic device, determines state information of the charging device based on state information of the electronic device, and determines the state of the charging device It is set to change the power supplied to the charging device by controlling the control circuit based on the information, and the charging voltage information of the electronic device determines the type of voltage that can be charged in the electronic device received from the charging device. information selected from the list, and the state information of the electronic device is information including at least one of charging state information of the electronic device, power state information of the electronic device, or connection information of the electronic device determined by the electronic device.

According to various embodiments, a control method of a USB type charging device includes an operation of receiving charging voltage information and status information of an electronic device from the electronic device through communication with the electronic device, and charging voltage of the electronic device. An operation of controlling to provide a voltage corresponding to a request of the electronic device to the electronic device based on the information, and determining state information of the charging device based on the state information of the electronic device, and determining the state information of the charging device. and changing power supplied to the charging device by controlling a control circuit based on, wherein the charging voltage information of the electronic device determines the type of voltage that can be charged by the electronic device received from the charging device. information selected from the list, and the state information of the electronic device is information including at least one of charging state information of the electronic device, power state information of the electronic device, or connection information of the electronic device determined by the electronic device.

In various embodiments, as a USB type charging device and a control method of the charging device are provided, connection of an electronic device may be detected, and minimum standby power may be provided to immediately supply power when connected to the electronic device.

1 is a block diagram of an electronic device in a network environment according to various embodiments.
2 is a block diagram of a power management module and a battery, in accordance with various embodiments.
3 is a block diagram of a charging device system including a USB type charging device and an electronic device according to various embodiments.
4A to 4B are diagrams for explaining an output voltage according to state information of the charging device 320 according to various embodiments.
5A and 5B are views for explaining pins of a Type-C connector according to various embodiments.
6 is a flowchart illustrating a control method of a USB-type charging device according to various embodiments.
7 is a flowchart illustrating a control method of a USB-type charging device according to various embodiments.
8 is a flowchart illustrating a control method of a USB type charging device according to various embodiments.
9 is a flowchart illustrating a control method of a USB-type charging device according to various embodiments.
10 is a diagram for explaining communication between a USB type charging device and an electronic device in a charging device system according to various embodiments.

1 is a block diagram of an electronic device 101 within a network environment 100, according to various embodiments. Referring to FIG. 1 , in a network environment 100, an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, short-range wireless communication), or through a second network 199 ( For example, it may communicate with the electronic device 104 or the server 108 through long-distance wireless communication. According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, a sensor module ( 176), interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, and antenna module 197 ) may be included. In some embodiments, in the electronic device 101, at least one of these components (eg, the display device 160 or the camera module 180) may be omitted or another component may be added. In some embodiments, some components are included, such as, for example, in the case of sensor module 176 (eg, a fingerprint sensor, iris sensor, or ambient light sensor) embedded in display device 160 (eg, display). can be integrated and implemented.

The processor 120, for example, drives software (eg, the program 140) to operate at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing and calculations. The processor 120 loads and processes commands or data received from other components (eg, the sensor module 176 or the communication module 190) into the volatile memory 132, and transfers the resulting data to the non-volatile memory 134. can be stored in According to one embodiment, the processor 120 is operated independently of the main processor 121 (eg, a central processing unit or application processor), and additionally or alternatively, uses less power than the main processor 121, Alternatively, an auxiliary processor 123 (eg, a graphic processing unit, an image signal processor, a sensor hub processor, or a communication processor) specialized for a designated function may be included. Here, the auxiliary processor 123 may be operated separately from or embedded with the main processor 121 .

In this case, the secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg sleep) state, or when the main processor 121 is active (eg sleep). : Application execution) together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or a communication module ( 190)) may control at least some of the related functions or states. According to one embodiment, the auxiliary processor 123 (eg, image signal processor or communication processor) is implemented as a component of other functionally related components (eg, camera module 180 or communication module 190). It can be. The memory 130 includes various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101, such as software (eg, the program 140). ) and input data or output data for commands related thereto. The memory 130 may include volatile memory 132 or non-volatile memory 134 .

The program 140 is software stored in the memory 130 and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input device 150 is a device for receiving a command or data to be used in a component (eg, the processor 120) of the electronic device 101 from the outside of the electronic device 101 (eg, a user), for example, For example, it may include a microphone, mouse, or keyboard.

The audio output device 155 is a device for outputting a sound signal to the outside of the electronic device 101, and includes, for example, a speaker used for general purposes such as multimedia playback or recording playback, and a receiver used exclusively for receiving calls. can include According to one embodiment, the receiver may be formed integrally with or separately from the speaker.

The display device 160 is a device for visually providing information to the user of the electronic device 101, and may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to one embodiment, the display device 160 may include a touch circuitry or a pressure sensor capable of measuring the intensity of a touch pressure.

The audio module 170 may convert a sound and an electrical signal in both directions. According to one embodiment, the audio module 170 acquires sound through the input device 150, the sound output device 155, or an external electronic device connected to the electronic device 101 by wire or wirelessly (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).

The sensor module 176 may generate an electrical signal or data value corresponding to an internal operating state (eg, power or temperature) of the electronic device 101 or an external environmental state. The sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a bio sensor, a temperature sensor, a humidity sensor, Alternatively, an illuminance sensor may be included.

The interface 177 may support a designated protocol capable of connecting with an external electronic device (eg, the electronic device 102) in a wired or wireless manner. According to one embodiment, the interface 177 may include a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 is a connector capable of physically connecting the electronic device 101 and an external electronic device (eg, the electronic device 102), for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector. (e.g. headphone connector).

The haptic module 179 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may perceive through tactile or kinesthetic senses. The haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to one embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 is a module for managing power supplied to the electronic device 101, and may be configured as at least a part of a power management integrated circuit (PMIC).

The battery 189 is a device for supplying power to at least one component of the electronic device 101, and may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

The communication module 190 establishes a wired or wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108), and establishes the communication channel. It can support communication through. The communication module 190 may include one or more communication processors that support wired communication or wireless communication that are independently operated from the processor 120 (eg, an application processor). According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : A local area network (LAN) communication module or a power line communication module) is included, and the first network 198 (eg, Bluetooth, WiFi direct, or IrDA (infrared data association)) is used for a short distance by using a corresponding communication module. communication network) or a second network 199 (eg, a cellular network, the Internet, or a telecommunications network such as a computer network (eg, LAN or WAN)) to communicate with the external electronic device. The various types of communication modules 190 described above may be implemented as a single chip or may be implemented as separate chips.

According to an embodiment, the wireless communication module 192 may distinguish and authenticate the electronic device 101 within a communication network using user information stored in the subscriber identification module 196 .

The antenna module 197 may include one or more antennas for transmitting or receiving signals or power to the outside. According to an embodiment, the communication module 190 (eg, the wireless communication module 192) may transmit a signal to an external electronic device or receive a signal from the external electronic device through an antenna suitable for a communication method.

Some of the above components are connected to each other through a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input/output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and signal (e.g. commands or data) can be exchanged with each other.

According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the electronic devices 102 and 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or part of operations executed in the electronic device 101 may be executed in one or a plurality of external electronic devices. According to an embodiment, when the electronic device 101 needs to perform a certain function or service automatically or upon request, the electronic device 101 instead of or in addition to executing the function or service by itself, At least some related functions may be requested from an external electronic device. The external electronic device receiving the request may execute the requested function or additional function and deliver the result to the electronic device 101 . The electronic device 101 may provide the requested function or service by directly or additionally processing the received result. To this end, for example, cloud computing, distributed computing, or client-server computing technology may be used.

2 is a block diagram 200 of a power management module 188 and a battery 189, in accordance with various embodiments. Referring to FIG. 2 , the power management module 188 may include a charging circuit 210 , a power regulator 220 , or a fuel gauge 230 . The charging circuit 210 may charge the battery 189 using power supplied from an external power source for the electronic device 101 . According to one embodiment, the charging circuit 210 may include a type of external power source (eg, a power adapter, USB or wireless charging), a size of power supplied from the external power source (eg, about 20 watts or more), or a battery (189 ), a charging method (eg, normal charging or rapid charging) may be selected based on at least some of the properties of the battery 189 and the battery 189 may be charged using the selected charging method. The external power source may be connected by wire through the connection terminal 278 or wirelessly through the antenna module 297, for example.

The power regulator 220 may generate a plurality of powers having different voltages or current levels by adjusting a voltage level or a current level of power supplied from an external power source or the battery 189 . The power regulator 220 may adjust the power of the external power source or battery 189 to a voltage or current level suitable for each component of the components included in the electronic device 101 . According to one embodiment, the power regulator 220 may be implemented in the form of a low drop out (LDO) regulator or a switching regulator.

The fuel gauge 230 may measure usage state information (eg, battery capacity, number of charge/discharge cycles, voltage, or temperature) of the battery 189 .

The power management module 188 uses, for example, the charging circuit 210, the voltage regulator 220, or the fuel gauge 230, based at least in part on the measured usage state information to determine the battery 189's Determining charge state information related to charging (eg, life, overvoltage, undervoltage, overcurrent, overcharge, overdischarge, overheating, short circuit, or swelling), and based at least in part on the determined charge state information After determining whether the battery 189 is in an abnormal state or a normal state, when it is determined that the battery 189 is in an abnormal state, charging of the battery 189 may be adjusted (eg, charging current or voltage is reduced, or charging is stopped). According to one embodiment, at least some of the functions of the power management module 188 may be performed by an external control device (eg, the processor 120).

The battery 189 may include a battery protection circuit module (PCM) 140 according to one embodiment. The battery protection circuit 240 may perform various functions (eg, a pre-blocking function) to prevent deterioration or burnout of the battery 189 . The battery protection circuit 240 may additionally or in alternative to a battery management system (BMS) for performing cell balancing, battery capacity measurement, charge/discharge count measurement, temperature measurement, or voltage measurement. ))).

According to an embodiment, at least a portion of the information on the state of use or the state of charge of the battery 189 is sent to a corresponding sensor (eg, temperature sensor) can be used to measure. In this case, according to one embodiment, the corresponding sensor (eg, temperature sensor) of the sensor module 176 is included as part of the battery protection circuit 240 or is a separate device and is located near the battery 189. can be placed in

3 is a block diagram 300 of a charging device system including a USB type charging device 320 and an electronic device 330 according to various embodiments. 4A to 4B are diagrams for explaining an output voltage according to state information of the charging device 320 according to various embodiments. 5A and 5B are views for explaining pins of a Type-C connector according to various embodiments.

Referring to FIG. 3 , the charging device system may include a USB type charging device 320 and an electronic device 330 (eg, the electronic device 101 of FIG. 1 ).

The USB type charging device 330 includes an AC input unit 321, an AC converter unit 322, a voltage output unit 323, a control circuit 324, a first USB charging circuit 325 and a communication unit 326a, 326b). The electronic device 330 may include a power charging unit 331 , a power management unit 332 , and a second USB charging circuit 325 .

First, the configuration of the USB type charging device 320 is as follows.

The AC input unit 321 may receive an alternating current (AC) voltage from the outlet 310 and provide the received alternating current (AC) voltage to the AC converter unit 322 .

The AC converter unit 322 is a rectifier circuit that rectifies the AC voltage into a DC voltage, and may provide the DC voltage to the voltage output unit 323 under the control of the control circuit 324 .

The voltage output unit 323 may provide a voltage for charging to the electronic device 330 connected to the charging device 320 under the control of the first USB charging circuit 325 .

The control circuit 324 may control the voltage output from the AC converter unit 322 by controlling the AC converter unit 322 . The control circuit 324 controls the AC converter unit 322 to provide a basic voltage (eg, 5V) to the electronic device 330 when the electronic device 330 is connected to the charging device 320. can keep

According to an embodiment, the control circuit 324 is based on a signal corresponding to state information of the charging device 320 received from the first USB charging circuit 325 through the communication units 326a and 326b. As a result, power provided to the inside of the charging device 320 may be changed.

According to one embodiment, the control circuit 324 receives a signal corresponding to the first state of the charging device 320 from the first USB charging circuit 325 through the communication units 326a and 326b. , It can be controlled to maintain the output of power in the first state lower than the power in the second state of the charging device 320 . The control circuit 324 controls the voltage output from the AC converter unit 322 while repeatedly performing an ON operation and an OFF operation based on the signal corresponding to the first state. Thus, power in the first state may be provided to the inside of the charging device 320 while maintaining power in the first state lower than power in the second state of the charging device 320 .

As shown in FIG. 4A, based on the signal corresponding to the first state, the control circuit 324 repeatedly performs an (ON) operation and an OFF operation while being output from the AC converter unit 322 By controlling the voltage, the power can be reduced.

According to one embodiment, the power in the first state is the minimum power that can be provided to the inside of the charging device 320, and may be, for example, 5 mV or less certified as zero standby power based on IEC62301.

According to one embodiment, the control circuit 324 receives a signal corresponding to the second state of the charging device 320 from the first USB charging circuit 325 through the communication units 326a and 326b. , It can be controlled to maintain the output of power in the second state higher than the power in the first state of the charging device 320 . The control circuit 324 controls the voltage output from the AC converter unit 322 while maintaining the ON operation at all times based on the signal corresponding to the second state, so that the charging device 320 Power in the second state higher than power in the first state of may be provided to the inside of the charging device 320 . For example, power in the second state may be 30 mA.

As shown in FIG. 4B, based on the signal corresponding to the second state, the control circuit 324 controls the voltage output from the AC converter unit 322 while maintaining the ON operation, Power in the second state (eg, 30 mA) higher than power in the first state (eg, 5 mA or less) may be maintained.

According to one embodiment, when the power of the second state of the charging device 320 is 30 mA, when the control circuit 324 repeatedly performs an on operation of 100 ms and an off operation of 900 ms , 3mA power, which is less than or equal to 5mA power, may be provided inside the charging device.

According to one embodiment, while the control circuit 324 maintains power in the first state of the charging device 320, when a signal corresponding to the second state of the charging device 320 is received, the charging device 320 It is possible to change and maintain power in the second state of.

According to one embodiment, while the control circuit 324 maintains power in the second state of the charging device 320, when a signal corresponding to the first state of the charging device 320 is received, the charging device 320 It is possible to change and maintain power in the first state of.

The first USB charging circuit 325 acquires charging voltage information and status information of the electronic device through communication with the electronic device 330, and based on the charging voltage information of the electronic device 330. A voltage that meets the demand of the electronic device 330 may be provided, and power supplied to the inside of the charging device 320 may be changed based on state information of the electronic device.

According to an embodiment, the first USB charging circuit 325 provides charging voltage information and a state of the electronic device from the electronic device 330 through a designated line (eg, CC line) of a USB Type-C connector. Acquire information, provide the electronic device 330 with a voltage that meets the demand of the electronic device 330 based on the charging voltage information of the electronic device, and charge the device 320 based on the status information of the electronic device Power supplied to the inside of may be changed. According to an embodiment, the first USB charging circuit 325 may include a USB power delivery control (PD) IC.

According to an embodiment, the first USB charging circuit 325 performs second USB charging of the electronic device 330 when the electronic device 330 is connected to the charging device 320 including a USB Type-C connector. Communication is performed through the CC line connected to the circuit 333 and the CC (Channel Configuration) pin of the USB Type-C connector, and the electronic device is charged from the second USB charging circuit 333 of the electronic device 330. Information and state information of the electronic device may be obtained.

The structure of the USB Type-C connector is described below with reference to FIGS. 5A to 5B. As shown in FIG. 5A, the Type-C connector 500 may include a plurality of pins. According to one embodiment, the connector 500 includes a plurality of first pins on a first surface (eg, surface A) corresponding to a forward direction and a plurality of pins on a second surface (eg, surface B) corresponding to a reverse direction. It may include second pins. For example, the plurality of first pins include a GND pin 511a, an SSTXp1 pin 512a, an SSTXn1 pin 513a, a VBUS pin 514a, a CC pin 515a, a Dp1 pin 516a, and a Dn1 pin 517a. ), SBU1 pin 518a, VBUS pin 519a, SSRXn2 pin 520a, SSRXp2 pin 521a, and GND pin 522a. For example, the plurality of second pins are GND pin 511b, SSTXp1 pin 512b, SSTXn1 pin 513b, VBUS pin 514b, VCONN pin 515b, Dp1 pin 516b, and Dn1 pin 517b. ), SBU1 pin 518b, VBUS pin 519b, SSRXn2 pin 520b, SSRXp2 pin 521b, and GND pin 522b. According to an embodiment, the plurality of first pins include one or more first ground pins, such as GND pins 511a and 522a, and one or more first signal pins, such as SSTXp1 pin 512a and SSTXn1 pin 513a. , including VBUS pin 514a, CC pin 515a, Dp1 pin 516a, Dn1 pin 517a, SBU1 pin 518a, VBUS pin 519a, SSRXn2 pin 520a, SSRXp2 pin 521a The plurality of second pins may include one or more second ground pins, for example, GND pins 511b and 522b, and one or more second signal pins, for example, SSTXp2 pin 512b, SSTXn2 pin 513b, VBUS pin 514b, VCONN pin 515b, Dp1 pin 516b, Dn1 pin 517b, SBU2 pin 518b, VBUS pin 519b, SSRXn1 pin 520b, SSRXp1 pin 521b. can

Referring to FIG. 5B, the SSTXp1 and SSTXp2 pins 512a and 512b, and the SSTXn1 and SSTXn2 pins 513a and 513b may be pins for super speed TX capable of fast data transmission, The Vbus pins 514a and 514b may be pins for USB cable charging power, the CC pin 515a may be a pin serving as an identification terminal, the Vconn pin 515b may be a pin for supporting plug power, , Dp1 pins 516a and 516b and Dn1 pins 517a and 517b may be pins for different bidirectional USB signals, and SBU1 and SBU2 pins 518a and 518b are redundant pins for various signals (eg, audio). signals, display signals, etc.), and the SSRXn2 and SSRXn1 pins (520a and 520b) and the SSRXp2 and SSRXp1 pins (521a and 521b) are super speed reception capable of fast data reception. RX). According to one embodiment, one or more first signal pins, for example, SSTXp1 pin 512a, SSTXn1 pin 513a, VBUS pin 514a, CC pin 515a, Dp1 At least one first signal pin of pin 516a, Dn1 pin 517a, SBU1 pin 518a, VBUS pin 519a, SSRXn2 pin 520a, or SSRXp2 pin 521a is a designated functional circuit (e.g., The audio module 460) and a wireless communication circuit capable of receiving wireless communication data (eg, broadcasting data) (eg, the broadcasting module 470), and may be selectively connected to one or more second signal pins. For example, SSTXp2 pin 512b, SSTXn2 pin 513b, VBUS pin 514b, VCONN pin 515b, Dp1 pin 516b, Dn1 pin 517b, VBUS pin 519b, SSRXn1 pin 520b or At least one second signal pin of the SSRXp1 pin 521b has a designated function It may be selectively connected to a circuit (eg, audio module 460) or a circuit capable of receiving wireless communication data (eg, broadcast data) (eg, communication module 470). According to one embodiment, one or more first ground pins, for example, at least one of the GND pins 511a and 522a is a communication module capable of receiving wireless communication data (eg, broadcast data) (470)), and one or more second ground pins, for example, at least one of the GND pins 511b and 522b receives wireless communication data (eg, broadcast data) It can be selectively connected with the communication module 470 that can. According to an embodiment, both the first GND pin 511a or 522a and the second GND pin 511b or 522b may be connected to a communication module 470 capable of receiving wireless communication data (eg, broadcasting data). have. For example, when both the first GND pin 511a or 522a and the second GND pin 511b or 522b are connected to the external connector and the wireless communication circuit, the radio received by the external antenna connected to the external connector A signal corresponding to communication data may be transmitted to the wireless communication circuit through the first GND pin 511a or 522a and the second GND pin 511b or 522b, respectively. According to an embodiment, each of the first GND pin 511a or 522a and the second GND pin 511b or 522b may receive a signal corresponding to different wireless communication data. According to another embodiment, each of the first GND pin 511a or 522a and the second GND pin 511b or 522b may be simultaneously connected to an external antenna through the external connector, and the first GND pin 511a or 522a and when each of the second GND pins 511b or 522b is simultaneously connected to an external antenna, the first GND pin 511a or 522a and the external antenna serve as the first antenna, and the second GND pin 511b or 522b and the external antenna serves as a second antenna, so a diversity antenna can be configured. In the above-described embodiments, the first signal pin, the second signal pin, and the first ground pin and the second ground pin are Although it has been described as an example that it is used as a pin that can be selectively connected to and, according to one embodiment, at least a part of the latch structure is designated as a latch pin that can be selectively connected to the communication module 470, and the latch pin communicates It can be selectively connected to the module 470.

According to one embodiment, the first USB charging circuit 325, the status information of the electronic device received through the CC line connected to the CC pin of the USB Type-C connector (eg, 515a of FIGS. 5A to 5B) , charging state information of the electronic device, power state information of the electronic device, or connection information of the electronic device. The first USB charging circuit 325 may receive charging state information of the electronic device and charging state information of the electronic device through the second USB charging circuit 333 of the electronic device. When a low signal is received through the CC line, the first USB charging circuit 325 determines that the electronic device 330 is not connected to the charging device 320, and outputs a high signal through the CC line. When a (High) signal is received, connection information of the electronic device may be obtained by confirming that the electronic device 330 is connected to the charging device 320 .

According to one embodiment, the first USB charging circuit 325 is in a state in which the electronic device 330 is not connected to the charging device 320 to which voltage is input from the outlet 310, or the outlet ( While the electronic device 330 is connected to the charging device 320 to which voltage is input from 310), at least one of a state in which the power of the electronic device 330 is turned off or charging is completed in a sleep mode is controlled by the charging device 330. 1 can be checked.

According to one embodiment, the first USB charging circuit 325, when the state of the charging device is confirmed as the first state, the control circuit 324 is lower than the power in the second state, the power in the first state To maintain the first state, a signal corresponding to the first state may be transmitted to the control circuit 324 through the communication units 326a and 326b.

According to an embodiment, the first USB charging circuit 325 charges a state in which an electronic device 330 that has not been charged is connected to the charging device 320 to which voltage is input from the outlet 310. It can be identified as the second state of the device.

According to one embodiment, the first USB charging circuit 325, when the state of the charging device is confirmed as the second state, the control circuit 324 sets the power in the second state higher than the power in the first state. A signal corresponding to the second state may be transmitted to the control circuit 324 through the communication units 326a and 326b.

According to one embodiment, the first USB charging circuit 325, in a state in which the charging device 320 is connected to the outlet 310, the CC pin of the USB Type-C connector (eg, 515a of FIGS. 5A to 5B) ), when a low signal is received through the connected CC line, it is determined that the electronic device 330 is not connected to the charging device 320, and the state of the charging device can be checked as the first state. The first USB charging circuit 325 controls the control circuit 324 through the communication units 326a and 326b so that the control circuit 324 maintains power in the first state lower than power in the second state. A signal corresponding to the first state may be transmitted to.

According to one embodiment, the first USB charging circuit 325, in a state in which the charging device 320 is connected to the outlet 310, the CC pin of the USB Type-C connector (eg, 515a of FIGS. 5A to 5B) When a high signal is received through the CC line connected to ), it is determined that the electronic device 300 is connected to the charging device 320, and the state of the charging device can be confirmed as the second state. The first USB charging circuit 325 controls the control circuit 324 through the communication units 326a and 326b so that the control circuit 324 maintains power in the second state higher than power in the first state. A signal corresponding to the second state may be transmitted to. The first USB charging circuit 325 controls the power output unit 323 to set the basic voltage (eg, 5V) maintained before connection of the electronic device 330 to the Vbus line of the USB Type-C connector ( Example: Power may be provided to the charging unit 331 of the electronic device 330 through 519a and 519b of FIGS. 5A and 5B. The first USB charging circuit 325 sends a list (eg, 5V/9V/15V/20V) including types of voltages that can be charged to the second USB charging circuit 333 of the electronic device 330. and receive charging voltage information including voltage information (eg, 12V) corresponding to a request of the electronic device from the second USB charging circuit 333 of the electronic device 330 . The first USB charging circuit 325 controls the power output unit 323 to supply a voltage (eg, 12V) corresponding to the request of the electronic device through the Vbus line of the USB Type-C connector to the electronic device ( The charging operation may be performed by providing the power to the charging unit 331 of 330.

According to an embodiment, the first USB charging circuit 325 is connected to the charging device 320 receiving the AC voltage from the outlet 310 while the electronic device 330 is being charged. When charging state information (eg, charging completion information of the electronic device) and power state information (eg, power off state or sleep state) of the electronic device are received from the second USB charging circuit 333 at (330) , it is possible to check the state of the charging device as the first state. The first USB charging circuit 325 controls the control circuit 324 through the communication units 326a and 326b so that the control circuit 324 maintains power in the first state lower than power in the second state. A signal corresponding to the first state may be transmitted to.

The communication units 326a and 326b may perform communication between the control circuit 324 and the first USB charging circuit 325 .

According to one embodiment, the communication units 326a and 326b may include optical communication units.

According to an embodiment, the optical communication unit transmits state information (eg, a first state of the charging device or a second state of the charging device) of the charging device from the first USB charging circuit 325 to the control circuit 324. It may include a light emitting unit 326b for transmitting and a light receiving unit 326b for receiving state information of the charging device transmitted from the first USB charging circuit 325 and providing the received state information to the control circuit 324 .

According to one embodiment, the optical communication unit may include a photo coupler including a photodiode and a phototransistor.

Next, the configuration of the electronic device 330 (eg, the electronic devices 101, 102, and 104 of FIG. 1) is as follows.

The power charging unit 331 (eg, the battery 189 of FIGS. 1 and 2 ) may be charged through a voltage provided through a Vbus line connected to a Vbus pin of USB Type-C of the charging device 322 .

The power management unit 332 (eg, the power management module 189 of FIGS. 1 and 2 ) is a component for managing information about the power charging unit 331, and information on the charging state of the power charging unit 331 (eg, the power management module 189). : Charging complete state, current charging state) can be determined.

The second USB charging circuit 333 may perform communication through the CC line connected to the first USB charging circuit 325 of the charging device to which the electronic device 330 is connected and the CC pin of the USB Type-C connector.

According to an embodiment, the second USB charging circuit 333 determines the electronic device's power state (power on/off state or sleep mode state) and the electronic device's charging state received from the power management unit 332. State information of the electronic device including information may be transmitted to the first USB charging circuit 325 of the charging device.

According to one embodiment, the second USB charging circuit 333 is to charge from the first USB charging circuit 325 of the charging device 320 after the electronic device 330 is connected to the charging device 320. When a list including possible voltage types (eg, 5V/9V/15V/20V) is received, a list suitable for charging the electronic device 330 is selected from the received list (eg, 5V/9V/15V/20V). Voltage information may be selected and transmitted to the first USB charging circuit 325 of the charging device 320 .

According to various embodiments, a USB-type charging device includes a USB charging circuit (eg, 325 in FIG. 3 ) that obtains charging voltage information and state information of the electronic device through communication with the electronic device, and a state of the charging device. A control circuit (e.g., 324 in FIG. 3) for controlling the output voltage of the rectifier circuit based on information and a communication unit (e.g., 326a, 326b in FIG. 3) for communication between the control circuit and the USB charging circuit, , The USB charging circuit provides a voltage corresponding to a request of the electronic device to the electronic device based on the charging voltage information of the electronic device and controls the electronic device to be charged, and based on state information of the electronic device It may be set to determine the state information of the charging device and change the power supplied to the charging device by controlling the control circuit based on the state information of the charging device.

According to various embodiments, the charging device may include a USB Type-C connector.

According to various embodiments, the USB charging circuit may be configured to obtain charging information of the electronic device and status information of the electronic device through a channel configuration (CC) line when the electronic device is connected.

According to various embodiments, the state information of the electronic device may include at least one of charging state information of the electronic device, power state information of the electronic device, and connection information of the electronic device.

According to various embodiments, the USB charging circuit, when the state of the charging device is in the first state, the control circuit through the communication unit to maintain the power in the first state lower than the power in the second state, the control circuit transmits a signal corresponding to the first state, and when the state of the charging device is in the second state, the control circuit maintains power in the second state higher than power in the first state through the communication unit It may be set to transmit a signal corresponding to the second state to

According to various embodiments, the first state of the charging device is a state in which the electronic device is not connected to the charging device to which voltage is input from an outlet or the charging device to which voltage is input from the outlet 310. While the electronic device 330 is connected to 320, the electronic device includes at least one of a state in which power is turned off or charging is completed in a sleep mode, and the second state of the charging device is from an outlet. This may include a state in which an electronic device in which charging is not completed is connected to the charging device to which voltage is input.

According to various embodiments, the control circuit outputs power in the first state while repeatedly performing an on and off operation when a signal corresponding to the first state is received, and a signal corresponding to the second state When is received, it may be set to output power in the second state while maintaining the on operation.

According to various embodiments, the communication unit includes an optical communication unit, and the optical communication unit includes a light emitting unit that transmits status information of the charging device to the control circuit in the USB charging circuit, and the information transmitted from the USB charging circuit. A light receiving unit receiving state information of the charging device and providing the received state information to the control circuit may be included.

According to various embodiments, the optical communication unit may be a photo coupler including a photodiode and a phototransistor.

According to various embodiments, a USB-type charging device includes a USB charging circuit (eg, 325 in FIG. 3 ) that obtains charging voltage information and state information of the electronic device through communication with the electronic device, and a state of the charging device. From a control circuit (e.g., 324 in FIG. 3) that controls the output voltage of the rectifier circuit based on information and a light emitting unit that transmits the status information of the charging device to the control circuit in the USB charging circuit and the USB charging circuit A communication unit (eg, 326a and 326b in FIG. 3 ) having a light receiving unit to receive the transmitted state information of the charging device and provide it to the control circuit, and the USB charging circuit includes charging voltage information of the electronic device. Based on the voltage corresponding to the request of the electronic device, the electronic device is controlled to charge the electronic device, the state information of the charging device is determined based on the state information of the electronic device, and the charging device It can be set to change the power supplied to the charging device by controlling the control circuit based on the state information of the.

According to various embodiments, the USB charging circuit, when the state of the charging device is in the first state, the control circuit through the communication unit to maintain the power in the first state lower than the power in the second state, the control circuit transmits a signal corresponding to the first state, and when the state of the charging device is in the second state, the control circuit maintains power in the second state higher than power in the first state through the communication unit It may be set to transmit a signal corresponding to the second state to

According to various embodiments, a USB-type charging device is a USB charging circuit (eg, FIG. 3 ) that obtains charging voltage information and state information of the electronic device from the electronic device through a designated line of a USB Type-C connector. 325), a control circuit for controlling the output voltage of the rectifier circuit based on the status information of the charging device (eg, 324 in FIG. 3), and a communication unit for communication between the control circuit and the USB charging circuit (eg, FIG. 324). 3, 326a, 326b), wherein the USB charging circuit provides a voltage corresponding to a request of the electronic device to the electronic device based on charging voltage information of the electronic device, and controls the electronic device to be charged; , It may be set to determine the state information of the charging device based on the state information of the electronic device, and change the power supplied to the charging device by controlling the control circuit based on the state information of the charging device.

According to various embodiments, the USB charging circuit, when the state of the charging device is in the first state, the control circuit through the communication unit to maintain the power in the first state lower than the power in the second state, the control circuit transmits a signal corresponding to the first state, and when the state of the charging device is in the second state, the control circuit maintains power in the second state higher than power in the first state through the communication unit It may be set to transmit a signal corresponding to the second state to

6 is a flowchart illustrating a control method of a USB-type charging device according to various embodiments. The control method may include operations 601 to 605.

In operation 601, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) connects to the CC pin (eg, 515a of FIGS. 5A to 5B ) of the USB Type-C connector. Receive charging voltage information and state information of the electronic device from the second USB charging circuit (eg, 333 of FIG. 3 ) of the electronic device (eg, 330 of FIG. 3 ) connected to the charging device through the connected CC line. can

In operation 603, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) is connected to the second USB charging circuit (eg, 330 of FIG. 3 ) of the electronic device (eg, FIG. 3 ). Based on the charging voltage information of the electronic device received from 333 of 3), the electronic device may be charged by providing a voltage corresponding to a request of the electronic device to the electronic device.

In operation 605, the first USB charging circuit (eg 325 of FIG. 3 ) of the charging device (eg 322 of FIG. 3 ) is connected to the second USB charging circuit (eg 330 of FIG. 3 ) of the electronic device (eg 322 of FIG. 3 ). Based on the state information of the electronic device obtained from step 333 of 3), state information of the charging device may be determined. The first USB charging circuit may change power supplied to the charging device based on state information (eg, a first state or a second state) of the charging device.

According to an embodiment, the first USB charging circuit determines the state of the charging device based on state information of the electronic device (eg, charging state information of the electronic device, power state information of the electronic device, and connection information of the electronic device). When the first state is confirmed, the control circuit (eg, 324 in FIG. 3 ) maintains the power (eg, 5 mW or less) in the first state lower than the power (eg, 30 mA) in the second state, to the control circuit. A signal corresponding to state 1 can be transmitted.

According to an embodiment, the first USB charging circuit determines the state of the charging device based on state information of the electronic device (eg, charging state information of the electronic device, power state information of the electronic device, and connection information of the electronic device). When the second state is determined, the control circuit (eg, 324 of FIG. 3 ) may transmit a signal corresponding to the second state to the control circuit so as to maintain power in the second state higher than power in the first state.

7 is a flowchart illustrating a control method of a USB-type charging device according to various embodiments. The control method may include operations 701 to 713.

In operation 701, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) may check state information of the charging device.

According to an embodiment, the first USB charging circuit is connected through a CC line connected to a CC pin of a connector (eg, a USB Type-C connector) of the charging device to which an electronic device (eg, 330 in FIG. 3 ) is connected. State information of the charging device may be checked based on the acquired state information of the electronic device.

According to an embodiment, the first USB charging circuit is connected to a connector (eg, USB Type-C connector) of the charging device while the charging device receives an AC voltage from an outlet (eg, 310 in FIG. 3 ). When a low signal is received through the CC line connected to the CC pin, the charging device to which the electronic device is not connected to the outlet may be determined as the first state of the connected charging device.

According to an embodiment, the first USB charging circuit supplies voltage to the electronic device while the electronic device is connected to the charging device receiving an AC voltage from an outlet (eg, 310 in FIG. 3 ), From the second USB charging circuit (eg, 333 in FIG. 3 ) of the electronic device (eg, 330 in FIG. 3 ) through the CC line connected to the CC pin of the connector (eg, USB Type-C connector) of the charging device. When the electronic device's charging status information (eg, charge completion information) and the electronic device's power status information (eg, a power-off state or a sleep mode state) are received, the electronic device is powered off or in a sleep mode, and the electronic device is charged. It may be determined as the first state of the completed charging device.

According to an embodiment, the first USB charging circuit is configured to charge when an electronic device in a powered-on state is connected to the charging device receiving an AC voltage from an outlet (eg, 310 in FIG. 3 ) and performs charging. The second state of the device may be determined.

In operation 703, when the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) confirms that the state of the charging device is in the first state, in operation 705 the rectifier circuit (eg, 325 of FIG. 3 ) : A signal corresponding to the first state of the charging device may be transmitted to a control circuit (eg, 324 of FIG. 3 ) that controls the output voltage of the AD-DC converter 322 of FIG. 3 .

In operation 707, based on the signal corresponding to the first state of the charging device received from the first USB charging circuit (eg, 325 in FIG. 3 ), minimum power lower than the power in the second state of the charging device is output. To do this, the control circuit may repeatedly perform an on operation and an off operation for output of minimum power (eg, 5 mV or less). By repeatedly performing the on and off operations of the control circuit, the output voltage of the rectifier circuit (eg, the AD-DC converter 322 of FIG. 3) is controlled so that the minimum power lower than the power in the second state is obtained in the charging device. can be supplied internally.

In operation 709, when the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) determines that the state of the charging device is in the second state, in operation 711 the rectifier circuit (eg, 325 of FIG. 3 ) : A signal corresponding to the second state of the charging device may be transmitted to a control circuit (eg, 324 of FIG. 3 ) that controls the output voltage of the AD-DC converter 322 of FIG. 3 .

In operation 713, based on the signal corresponding to the second state of the charging device received from the first USB charging circuit (eg, 325 in FIG. 3 ), the power (eg, 5 mA) of the first state of the charging device is higher than To output high power (eg 30mA), the control circuitry can remain on. While the control circuit maintains the on state, the output voltage of the rectifier circuit (eg, the AD-DC converter 322 of FIG. 3) is controlled to supply power higher than the power in the first state to the inside of the charging device. .

8 is a flowchart illustrating a control method of a USB type charging device according to various embodiments. The control method may include operations 801 to 811.

In operation 801, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) is connected to the charging device to which the AC voltage is input from the outlet (eg, 310 of FIG. 3 ). It can be confirmed that the device (eg, 330 in FIG. 3) is not connected.

According to one embodiment, the electronic device is not connected to the charging device through a signal (eg, low signal) received through a CC line connected to a CC pin of a USB Type-C connector of the charging device. You can check.

In operation 803, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) confirms that the charging device is in the first state, and the charging device determines that the power of the first state is reached. can be controlled to maintain

According to one embodiment, the first USB charging circuit, the control circuit (eg, 324 of FIG. 3) for controlling the output voltage of the rectifier circuit (eg, AC-DC converter 322 of FIG. 3) is in the second state A signal corresponding to the first state may be transmitted to the control circuit through a communication unit (eg, 326a and 326b of FIG. 3 ) so as to maintain the power of the first state lower than the power of .

In operation 805, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) is connected to the charging device to which the AC voltage is input from the outlet (eg, 310 of FIG. 3 ). A device (eg, 330 in FIG. 3 ) may check the connection.

According to one embodiment, it can be confirmed that the electronic device is connected to the charging device through a signal (eg, a high signal) received through a CC line connected to a CC pin of a USB Type-C connector of the charging device. .

In operation 807, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) confirms that the charging device is in the second state, and the charging device determines that the power of the second state is reached. can be controlled to maintain

According to one embodiment, the first USB charging circuit is a control circuit (eg, 324 of FIG. 3 ) for controlling the output voltage of the rectifier circuit (eg, AC-DC converter 322 of FIG. 3 ) in the first state. A signal corresponding to the second state may be transmitted to the control circuit through a communication unit (eg, 326a and 326b of FIG. 3 ) so as to maintain power in the second state where the power of .

In operation 809, the first USB charging circuit (eg, 325 in FIG. 3 ) of the charging device (eg, 322 in FIG. 3 ) is connected to the charging device to which the AC voltage is input from the outlet (eg, 310 in FIG. 3 ). When a device (eg, 330 in FIG. 3 ) is connected, charging voltage information may be received from the second USB charging circuit (eg, 333 in FIG. 3 ) of the electronic device.

According to an embodiment, the first USB charging circuit may control a power output unit (eg, 323 of FIG. 3 ) to supply a basic voltage (eg, 5V) maintained before the electronic device is connected to the electronic device. have. The first USB charging circuit may transmit a list including types of charging voltages (5V/9V/15V/20V) to the second USB charging circuit (eg, 333 of FIG. 3 ) of the electronic device. The first USB charging circuit may receive charging voltage information including voltage information suitable for an electronic device (eg, 15V) from the second USB charging circuit.

In operation 811, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) controls the power output unit (eg, 323 of FIG. 3 ) to generate electronic self-government (eg, FIG. 3 ). A charging operation for electronic self-government may be performed while providing a voltage corresponding to the request of 330) to the electronic device.

9 is a flowchart illustrating a control method of a USB-type charging device according to various embodiments. The control method may include operations 901 to 913.

In operation 901, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) is connected to the charging device to which the AC voltage is input from the outlet (eg, 310 of FIG. 3 ). The connection of the device (eg, 330 in FIG. 3 ) can be confirmed.

According to one embodiment, it is confirmed that the electronic device is connected to the charging device through a signal (eg, a high signal) received through a CC line connected to a CC pin of a USB Type-C connector of the charging device. can

In operation 903, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) completes charging the electronic device (eg, 330 of FIG. 3 ) connected to the charging device (eg, 322 of FIG. 3 ). Ex: 100% charge state), you can check that the power is off or sleep mode.

According to one embodiment, the first USB charging circuit may receive charging state information (eg, charging incomplete state) of the electronic device and power of the electronic device from the second USB charging circuit (eg, 333 of FIG. 3 ) of the electronic device. When status information (eg, power-off or sleep mode) is received, the electronic device connected to the charging device may confirm that the electronic device is in a power-off or sleep mode state while charging has not been completed (eg, a 100% charge state).

In operation 905, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) confirms that the charging device is in the second state, and the charging device determines that the power of the second state is reached. can be controlled to maintain

According to one embodiment, the first USB charging circuit is a control circuit (eg, 324 of FIG. 3 ) for controlling the output voltage of the rectifier circuit (eg, AC-DC converter 322 of FIG. 3 ) in the first state. A signal corresponding to the second state may be transmitted to the control circuit through a communication unit (eg, 326a and 326b of FIG. 3 ) so as to maintain power in the second state where the power of .

In operation 907, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) is connected to the charging device to which the AC voltage is input from the outlet (eg, 310 of FIG. 3 ). When a device (eg, 330 in FIG. 3 ) is connected, charging voltage information may be received from the second USB charging circuit (eg, 333 in FIG. 3 ) of the electronic device.

According to an embodiment, the first USB charging circuit may control a power output unit (eg, 323 of FIG. 3 ) to supply a basic voltage (eg, 5V) maintained before the electronic device is connected to the electronic device. have. The first USB charging circuit may transmit a list including types of charging voltages (5V/9V/15V/20V) to the second USB charging circuit (eg, 333 of FIG. 3 ) of the electronic device. The first USB charging circuit may receive charging voltage information including voltage information suitable for an electronic device (eg, 15V) from the second USB charging circuit.

In operation 909, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) controls the power output unit (eg, 323 of FIG. 3 ) to generate electronic self-government (eg, FIG. 3 ). A charging operation for electronic self-government may be performed while providing a voltage corresponding to the request of 330) to the electronic device.

In operation 911, the first USB charging circuit (eg, 325 in FIG. 3 ) of the charging device (eg, 322 in FIG. 3 ) is connected to the second USB charging circuit (eg, 330 in FIG. 3 ) of the electronic device (eg, FIG. 3 ). Based on the charging state information (eg, fully charged (100%) state) of the electronic device received from 333 of 3), it may be confirmed that charging of the electronic device is completed.

In operation 913, the first USB charging circuit (eg, 325 of FIG. 3 ) of the charging device (eg, 322 of FIG. 3 ) confirms that the charging device is in the first state, and the charging device determines that the power of the first state is reached. can be controlled to maintain

According to one embodiment, the first USB charging circuit, the control circuit (eg, 324 of FIG. 3) for controlling the output voltage of the rectifier circuit (eg, AC-DC converter 322 of FIG. 3) is in the second state A signal corresponding to the first state may be transmitted to the control circuit through a communication unit (eg, 326a and 326b of FIG. 3 ) so as to maintain the power of the first state lower than the power of .

10 is a diagram for explaining communication between a USB type charging device 420 and an electronic device 430 in a charging device system according to various embodiments.

Referring to FIG. 10, the electronic device 430 (FIG. 3) is connected to the charging device (420, 320 in FIG. 330) is connected, and the electronic device 430 (330 in FIG. 3) can perform a charging operation.

When the charging of the electronic device 430 connected to the charging device 420 is completed, the electronic device 430 charges the electronic device by using USB Type-C VDM communication on the CC line of the USB Type-C connector. Voltage information and state information of the electronic device may be transmitted to the charging device 420 .

The charging device 420 and the electronic device 430 may exchange information or signals using USB Type-C VDM communication.

According to various embodiments, a control method of a USB-type charging device may include obtaining charging voltage information and state information of the electronic device through communication with the electronic device, and performing the charging voltage based on the charging voltage information of the electronic device. An operation of controlling to provide a voltage corresponding to a request of the electronic device to the electronic device, determining state information of the charging device based on state information of the electronic device, and controlling a control circuit based on the state information of the charging device It may include an operation of changing the power supplied to the charging device by controlling.

According to various embodiments, the charging device may include a USB Type-C connector.

According to various embodiments, the obtaining operation may include obtaining charging information of the electronic device and state information of the electronic device through a channel configuration (CC) line when the electronic device is connected.

According to various embodiments, the state information of the electronic device may include at least one of charging state information of the electronic device, power state information of the electronic device, and connection information of the electronic device.

According to various embodiments, the operation of changing the power supplied to the charging device is such that, when the state of the charging device is in the first state, the control circuit maintains power in the first state lower than power in the second state, transmitting a signal corresponding to the first state to the control circuit, and when the state of the charging device is in the second state, the control circuit maintains power in the second state higher than power in the first state, the communication The method may further include transmitting a signal corresponding to the second state to the control circuit through a unit.

According to various embodiments, the first state of the charging device is a state in which the electronic device is not connected to the charging device to which voltage is input from an outlet, or the charging device 320 to which voltage is input from the outlet. includes at least one of a state in which the electronic device is powered off while the electronic device is connected to the electronic device or in a state in which charging is completed in a sleep mode, and the second state of the charging device is the charging state in which voltage is input from an outlet. This may include a state in which an electronic device that is not fully charged is connected to the device.

According to various embodiments, when a signal corresponding to the first state is received, an operation of outputting power in the first state while repeatedly performing an on and off operation and a signal corresponding to the second state are received, An operation of outputting power in the second state while maintaining the on operation may be further included.

The term "module" used in this document includes a unit composed of hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A “module” may be an integrally constructed component or a minimal unit or part thereof that performs one or more functions. A "module" may be implemented mechanically or electronically, for example, a known or future developed application-specific integrated circuit (ASIC) chip, field-programmable gate arrays (FPGAs), or A programmable logic device may be included. At least some of the devices (eg, modules or functions thereof) or methods (eg, operations) according to various embodiments are instructions stored in a computer-readable storage medium (eg, the memory 130) in the form of program modules. can be implemented as When the command is executed by a processor (eg, the processor 120), the processor may perform a function corresponding to the command. Computer-readable recording media include hard disks, floppy disks, magnetic media (e.g. magnetic tape), optical recording media (e.g. CD-ROM, DVD, magneto-optical media (e.g. floptical disks), built-in memory, etc.) The instruction may include code generated by a compiler or code executable by an interpreter.

A module or program module according to various embodiments may include at least one or more of the aforementioned components, some may be omitted, or other components may be further included. According to various embodiments, operations performed by modules, program modules, or other components are executed sequentially, in parallel, iteratively, or heuristically, or at least some operations are executed in a different order, are omitted, or other operations are added. It can be.

101: electronic device, 120, 420: processor, 130, 430: memory, 190, 490: communication module

Claims (20)

In the USB type charging device,
a USB charging circuit that receives charging voltage information and state information of the electronic device from the electronic device through communication with the electronic device;
a control circuit that controls the output voltage of the rectifier circuit based on the status information of the charging device; and
A communication unit for communication between the control circuit and the USB charging circuit,
The USB charging circuit,
Control to charge the electronic device by providing a voltage corresponding to a request of the electronic device to the electronic device based on charging voltage information of the electronic device;
It is set to determine state information of the charging device based on the state information of the electronic device, and change power supplied to the charging device by controlling the control circuit based on the state information of the charging device,
The charging voltage information of the electronic device is information selected by the electronic device from a list including types of voltages that can be charged received from the charging device,
The state information of the electronic device is information including at least one of charging state information of the electronic device determined by the electronic device, power state information of the electronic device, or connection information of the electronic device.
◈Claim 2 was abandoned when the registration fee was paid.◈ According to claim 1,
The charging device is a USB type charging device including a USB Type-C connector.
The method of claim 1, wherein the USB charging circuit,
A USB-type charging device configured to obtain charging voltage information and status information of the electronic device through a CC (Channel Configuration) line when the electronic device is connected.
delete The method of claim 1, wherein the USB charging circuit,
When the state of the charging device is in the first state, the control circuit transmits a signal corresponding to the first state to the control circuit through the communication unit so that the power in the first state is lower than the power in the second state,
When the state of the charging device is in the second state, the control circuit is configured to transmit a signal corresponding to the second state to the control circuit through the communication unit so as to maintain power in the second state higher than power in the first state. USB type charging device.
The method of claim 5, wherein the first state of the charging device,
The electronic device is turned off while the electronic device is not connected to the charging device receiving voltage from the outlet or while the electronic device is connected to the charging device receiving voltage from the outlet, or At least one of charging completed states in the sleep mode, and the second state of the charging device includes:
A USB type charging device including a state in which an electronic device that has not been charged is connected to the charging device to which voltage is input from an outlet.
The method of claim 5, wherein the control circuit,
When a signal corresponding to the first state is received, outputting power in the first state while repeatedly performing on and off operations;
When a signal corresponding to the second state is received, the USB type charging device configured to output power in the second state while maintaining the on operation.
The method of claim 1, wherein the communication unit comprises an optical communication unit,
The optical communication unit,
a light emitting unit transmitting state information of the charging device to the control circuit in the USB charging circuit; and
A USB type charging device including a light receiving unit receiving state information of the charging device transmitted from the USB charging circuit and providing the received state information to the control circuit.
◈Claim 9 was abandoned when the registration fee was paid.◈ The method of claim 8, wherein the optical communication unit,
A USB type charging device that is a photocoupler equipped with a photodiode and phototransistor.
In the USB type charging device,
a USB charging circuit that receives charging voltage information and state information of the electronic device from the electronic device through communication with the electronic device;
a control circuit that controls the output voltage of the rectifier circuit based on the status information of the charging device; and
In the USB charging circuit, a communication unit having a light emitting unit for transmitting state information of the charging device to the control circuit and a light receiving unit for receiving and providing the state information of the charging device transmitted from the USB charging circuit to the control circuit include,
The USB charging circuit,
Control to charge the electronic device by providing a voltage corresponding to a request of the electronic device to the electronic device based on charging voltage information of the electronic device;
It is set to determine state information of the charging device based on the state information of the electronic device, and change power supplied to the charging device by controlling the control circuit based on the state information of the charging device,
The charging voltage information of the electronic device is information selected by the electronic device from a list including types of voltages that can be charged received from the charging device,
The state information of the electronic device is information including at least one of charging state information of the electronic device determined by the electronic device, power state information of the electronic device, or connection information of the electronic device.
11. The method of claim 10, wherein the USB charging circuit,
When the state of the charging device is in the first state, the control circuit transmits a signal corresponding to the first state to the control circuit through the communication unit so that the power in the first state is lower than the power in the second state,
When the state of the charging device is in the second state, the control circuit is configured to transmit a signal corresponding to the second state to the control circuit through the communication unit so as to maintain power in the second state higher than power in the first state. USB type charging device.
In the USB type charging device,
a USB charging circuit that receives charging voltage information and state information of the electronic device from the electronic device through a designated line of the USB Type-C connector;
a control circuit that controls the output voltage of the rectifier circuit based on the status information of the charging device; and
A communication unit for communication between the control circuit and the USB charging circuit,
The USB charging circuit,
Control to charge the electronic device by providing a voltage corresponding to a request of the electronic device to the electronic device based on charging voltage information of the electronic device;
It is set to determine state information of the charging device based on the state information of the electronic device, and change power supplied to the charging device by controlling the control circuit based on the state information of the charging device,
The charging voltage information of the electronic device is information selected by the electronic device from a list including types of voltages that can be charged received from the charging device,
The state information of the electronic device is information including at least one of charging state information of the electronic device determined by the electronic device, power state information of the electronic device, or connection information of the electronic device.
13. The method of claim 12, wherein the USB charging circuit,
When the state of the charging device is in the first state, the control circuit transmits a signal corresponding to the first state to the control circuit through the communication unit so that the power in the first state is lower than the power in the second state,
When the state of the charging device is in the second state, the control circuit is configured to transmit a signal corresponding to the second state to the control circuit through the communication unit so as to maintain power in the second state higher than power in the first state. USB type charging device.
◈Claim 14 was abandoned when the registration fee was paid.◈ In the control method of a USB type charging device,
receiving charging voltage information and state information of the electronic device from the electronic device through communication with the electronic device;
controlling to provide a voltage corresponding to a request of the electronic device to the electronic device based on charging voltage information of the electronic device; and
Determining state information of the charging device based on the state information of the electronic device and changing power supplied to the charging device by controlling a control circuit based on the state information of the charging device;
The charging voltage information of the electronic device is information selected by the electronic device from a list including types of voltages that can be charged received from the charging device,
The state information of the electronic device is information including at least one of charging state information of the electronic device determined by the electronic device, power state information of the electronic device, or connection information of the electronic device.
◈Claim 15 was abandoned when the registration fee was paid.◈ According to claim 14,
The charging device includes a USB Type-C connector.
◈Claim 16 was abandoned when the registration fee was paid.◈ The method of claim 14, wherein the receiving operation,
and receiving charge voltage information of the electronic device and status information of the electronic device through a channel configuration (CC) line when the electronic device is connected.
delete ◈Claim 18 was abandoned when the registration fee was paid.◈ 15. The method of claim 14, wherein the operation of changing the power supplied to the charging device,
when the state of the charging device is in the first state, transmitting a signal corresponding to the first state to the control circuit so that the control circuit maintains power in the first state lower than power in the second state; and
When the state of the charging device is in the second state, the control circuit transmits a signal corresponding to the second state to the control circuit through the communication unit of the charging device so that the power in the second state is higher than the power in the first state. A method further comprising the operation of transmitting.
◈Claim 19 was abandoned when the registration fee was paid.◈ The method of claim 18, wherein the first state of the charging device,
The electronic device is turned off while the electronic device is not connected to the charging device receiving voltage from the outlet or while the electronic device is connected to the charging device receiving voltage from the outlet, or At least one state in which charging is completed in a sleep mode is included, and the second state of the charging device is:
A method including a state in which an electronic device that is not fully charged is connected to the charging device to which voltage is input from an outlet.
◈Claim 20 was abandoned when the registration fee was paid.◈ According to claim 18,
outputting power in the first state while repeatedly performing on and off operations when a signal corresponding to the first state is received; and
and outputting power in the second state while maintaining the on operation when a signal corresponding to the second state is received.

Images