Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Silergy Semiconductor Technology (hangzhou) Ltd

Shiming Wan

Jialiang Zhang

Jiada Li

Chen Tian

Shebiao Chen

Jun Zhang

Wei Chen

Shangbo Lin

Jun Yang

Dongsun Yang

Chen Zhao

Wang Zhang

Chunying Qu

A to-be-charged device includes at least two receiving branches, a charging control module, and a battery. Each receiving branch is separately connected to the charging control module and the battery. Each receiving branch is respectively coupled to a transmitting branch in a wireless charging apparatus, an electromagnetic signal transmitted by the coupled transmitting branch is received, and the received electromagnetic signal is converted into charging voltage and charging current of the battery of said device. The charging control module generates, according to at least one of the charging voltage of the battery, the charging current of the battery, the voltage of each receiving branch, and the current of each receiving branch, feedback information instructing the wireless charging apparatus to adjust the transmitted power of the transmitting branch, and feeds back to the wireless charging apparatus.

Wireless charging device, to-be-charged device, and charging

A wireless receiving device, a wireless charging system and a wireless charging method are provided. The device includes a plurality of receiving coils coupled with a transmitting coil respectively, and configured to receive wireless charging signals transmitted from the transmitting coil respectively; and a plurality of wireless receiving-processing circuits configured to perform a voltage and/or current process for the wireless charging signals received by the receiving coils, to charge a battery. A terminal of each of the wireless receiving-processing circuits is connected to a corresponding one of the receiving coils, and another terminal of each of the wireless receiving-processing circuits is connected to the battery. Since the wireless receiving device includes a plurality of receiving coils and a plurality of wireless receiving-processing circuits, a charging speed and a charging efficiency of wireless charging may be improved.

Wireless receiving device, wireless charging system, wireless charging method

A device to-be-charged and a wireless charging method are provided. The device to-be-charged includes a receiving coil, a first charging unit, and a second charging unit. The receiving coil includes a first end, a second end, and a middle tap. The first charging unit is coupled with the first end and the middle tap of the receiving coil and configured to convert an electromagnetic signal received at the first end and the middle tap into a first voltage and a first current for charging a battery. The second charging unit is coupled with the second end and the middle tap of the receiving coil and configured to convert an electromagnetic signal received at the second end and the middle tap into a second voltage and a second current for charging the battery.

Device to-be-charged and wireless charging method

Disclosed are a wireless charging apparatus, a wireless charging method, and a wireless charging system. The wireless charging apparatus includes: a charging interface; a wireless transmitting circuit configured to convert electric energy outputted from a power supply apparatus into an electromagnetic signal and transmit the electromagnetic signal to wirelessly charge a device to be charged; and a control module configured to determine a wireless charging mode to be adopted as a first wireless charging mode or a second wireless charging mode through communication between the wireless transmitting circuit and the device to be charged, periodically detect whether a condition for exiting the first wireless charging mode has occurred when in the first wireless charging mode, and adjust a current wireless charging mode to the second wireless charging mode in response to detecting that the condition for exiting the first wireless charging mode has occurred.

Wireless charging apparatus, method and system

A step-down circuit, an electronic device, and a step-down method are disclosed. The step-down circuit includes a positive input terminal and a negative input terminal for receiving an input voltage; and a positive output terminal and a negative output terminal for outputting a target voltage. The negative input terminal and the negative output terminal are grounded together. The step-down circuit also includes a switch circuit, a rectifier circuit, an isolation circuit, and a control unit for outputting control signals to control for turning on or off a switch in the switch circuit and for turning on or off a switch in the rectifier circuit, allowing the input voltage to sequentially pass through the switch in the switch circuit, a capacitor in the isolation circuit, and the switch in the rectifier circuit to obtain a target voltage.

Step-down circuit, electronic device, and step-down method

Provided are a to-be-charged device, a wireless charging device, and a wireless charging method. The to-be-charged device includes a battery, at least two wireless receiver circuits, and a control circuit. Each of the at least two wireless receiver circuits is coupled to the battery, and is configured to receive an electromagnetic signal transmitted by a wireless charging device, and convert the electromagnetic signal into a charging current for charging the battery. The control circuit is coupled with each of the at least two wireless receiver circuits, and is configured to, in various charging stages or in different charging modes, control at least one of the at least two wireless receiver circuits to charge the battery.

To-be-charged device, wireless charging device, and wireless charging method

Disclosed are a wireless charging method, a device to-be-charged and a wireless charging system. The method can be applied to the wireless charging system, which includes the device to-be-charged and a wireless charging device. The device to-be-charged includes a wireless receiver circuit and a battery. The wireless receiver circuit is configured to receive an electromagnetic signal transmitted by the wireless charging device, and convert the electromagnetic signal into an output current to charge the battery. The method includes: determining, according to a detected actual output voltage of the wireless receiver circuit, whether the device to-be-charged and the wireless charging device are misaligned with each other during a wireless charging process; and setting a target output voltage of the wireless receiver circuit as the actual output voltage, in response to determining that the device to-be-charged and the wireless charging device are misaligned with each other.

Wireless charging method, device to-be-charged and wireless charging system

Disclosed are a power matching method and apparatus for wireless charging, and a wireless charging apparatus. The method includes receiving first sensing information sensed from a transmitting coil of the wireless transmitter, wherein the transmitting coil includes at least one of a capacitor assembly with adjustable capacitance and an inductor assembly with adjustable inductance; detecting whether resonant frequency has changed according to the first sensing information; and adjusting at least one of capacitance of the capacitor assembly in the transmitting coil of the wireless transmitter and inductance of the inductor assembly in the transmitting coil in response to the resonant frequency changing to make transmitting power of the wireless transmitter be matched with receiving power of a wireless receiver in the wireless charging system, wherein the first sensing information comprises at least one of a first sensing voltage value and a first sensing current value.

Power matching method and apparatus for wireless charging, and wireless charging apparatus

A charging device includes a control unit used for controlling, when determined as being in a wireless charging mode, a path to be connected between a charging management unit and a wireless charging receiver unit, and controlling, when determined as being in a wired charging mode, a path to be connected between the charging management unit and a wired charging connector unit. The charging management unit is used for having, on the basis of the path being connected by the control unit, the wireless charging receiver unit or the wired charging connector unit to charge a battery. The control unit is also used for transmitting, when determined as the wireless charging mode, a control instruction to a wireless charging device for indicating that transmission power of the wireless charging device needs to be adjusted.

Charging device, device to be charged, charging method, and computer storage medium

Provided are a transmitting apparatus, a receiving apparatus, a power supply device, and a wireless charging method. The transmitting apparatus includes: a wireless transmitting circuit configured to transmit a wireless charging signal; and a communication control circuit configured to receive a first feedback signal from the receiving apparatus, and to transmit a second feedback signal to the power supply device based on the first feedback signal. The first feedback signal is a feedback signal corresponding to an output current of a wireless receiving circuit, and the second feedback signal is used to trigger the power supply device to adjust at least one of an output voltage and an output current of the power supply device.

Transmitting apparatus, receiving apparatus, power supply device and wireless charging method

Disclosed in embodiments of the present application are a charging circuit, a charging method, a terminal and a computer storage medium, the charging circuit comprising a charging interface, a control circuit, a connector and a battery; the control circuit, the connector and the battery being disposed between the charging interface and a motherboard of the terminal; the charging interface being configured so as to, after a connection is established between the terminal and a power supply providing device, access a charging current and a charging voltage; the control circuit being configured to control a conducting pathway between the charging interface and the connector, so as to transfer charging current and charging voltage entering the charging interface to the battery via the connector, so as to charge the battery.

Charging circuit, charging method, and terminal

Wireless charging methods, a device to-be-charged (), a power supply device (), and a storage medium are provided. A wireless charging method is applicable to a device to-be-charged (). The device to-be-charged () includes a wireless power receiving circuit. The method include the following. During wireless charging, an output current of the wireless power receiving circuit and a charging voltage of a battery and/or a charging current of the battery are detected (). A target charging power is determined according to the charging voltage and/or the charging current of the battery, and a target charging current is determined according to the output current of the wireless power receiving circuit (). An adjustment request is sent to a power supply device, where the adjustment request carries the target charging power and/or the target charging current (). An adjusted wireless charging signal is received from a wireless charging apparatus.

Wireless charging methods and device to-be-charged

A charging control method, a device, a storage medium and a wireless charging base are provided. The method can be applied to a wireless charging base comprising wireless charging units, each supporting a variety of wireless charging standards, and each wireless charging unit wirelessly charges for electronic devices. The method includes detecting whether the wireless charging base simultaneously wirelessly charging electronic devices, wherein each wireless charging unit supports a variety of wireless charging standards; in response to detecting that the wireless charging base simultaneously wirelessly charges the electronic devices, obtaining a first number of electronic devices and a second number of wireless charging standards supported by the wireless charging base; determining with each electronic device a wireless charging standard according to the first number and the second number; and wirelessly charging each electronic device through corresponding wireless charging unit according to the wireless charging standard determined with each electronic device.

Method, device for charging control, wireless charging base and storage device

Provided are a device to-be-charged and a charging control method. The device to-be-charged can include a wireless receiving circuit, a charging management circuit, and a step-down circuit. The wireless receiving circuit can be configured to receive a wireless charging signal to charge a battery. The charging management circuit can be configured to perform constant voltage control and/or constant current control on charging of the battery. The step-down circuit is configured to decrease an output voltage of the wireless receiving circuit or an output voltage of the charging management circuit.

Device to-be-charged and charging control method

A terminal and a device are provided. The terminal includes a charging interface and a first charging circuit. The first charging circuit is coupled with the charging interface, and is configured to receive an output voltage from the adapter via the charging interface and apply the output voltage to both ends of multiple cells connected in series in the terminal to charge the multiple cells.

Growing community of inventors

Guangdong, China

Shiming Wan