Abstract: A power supply device, a wireless charging device, a system, and a wireless charging method are provided. The power supply device is applicable to wireless charging, including a rectification module configured to rectify an input alternating current to provide a direct current; a control module electrically connected to the rectification module; a wireless transmission driving module electrically connected to the control module, and configured to receive a first control signal transmitted by the control module to generate a driving signal according to the first control signal; an inverse rectification module correspondingly electrically connected to the rectification module and the wireless transmission driving module, and configured to inversely transform the direct current according to the driving signal to generate an alternating current signal; and a connection interface electrically connected to the inverse rectification module, and configured to output the alternating current signal.

Abstract: 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.

Abstract: 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.

Abstract: Wireless charging methods, a device to-be-charged (230), a power supply device (210), and a storage medium are provided. A wireless charging method is applicable to a device to-be-charged (230). The device to-be-charged (230) 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 (101). 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 (102). 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 (103). An adjusted wireless charging signal is received from a wireless charging apparatus.

Abstract: A transmitting apparatus and a wireless charging method are provided. The transmitting apparatus includes a wireless transmitting circuit and a communication control circuit. The wireless transmitting circuit is configured to transmit a wireless charging signal. The communication control circuit is configured to receive a first feedback signal from a receiving apparatus and adjust, according to the first feedback signal, a voltage and/or a current corresponding to a transmission power of the wireless charging signal, where the first feedback signal is a feedback signal corresponding to an output current of a wireless receiving circuit.

Abstract: 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.

Abstract: Provided are a charging control method, a device to-be-charged and a wireless charging device. In the method, a battery voltage and a battery current of a battery of the device to-be-charged are detected, and an output current of a wireless charging receiving unit of the device to-be-charged is detected. According to the detected battery voltage, battery current and output current, a control instruction is sent to the wireless charging device. The control instruction is configured to instruct the wireless charging device to adjust a transmit power thereof, thereby making the transmit power meet a charging power required by the battery, and making the output current in a preset current required range. The wireless charging receiving unit receives an adjusted wireless charging signal sent from the wireless charging device to charge the battery.

Abstract: A device to-be-charged, a wireless charging apparatus and method are provided. The apparatus includes: a voltage converting circuit, configured to receive an input voltage and convert the input voltage to obtain an output voltage and an output current of the voltage converting circuit; a wireless transmitting circuit, configured to transmit an electromagnetic signal according to the output voltage and the output current of the voltage converting circuit to conduct wireless charging on a device to-be-charged; and a first control circuit, configured for wireless communication with the device to-be-charged during the wireless charging to acquire an output voltage and/or an output current of a step-down circuit fed back by the device to-be-charged, and adjust the output voltage and/or the output current of the voltage converting circuit according to the output voltage and/or the output current of the step-down circuit to adjust a transmission power of the electromagnetic signal.

Abstract: A charging system, a charging method, and a power adapter are provided. The power adapter includes a battery, a first rectification unit, a transformer, a synthesis unit, a first charging interface, a sampling unit, and a modulation and control unit. The modulation and control unit is configured to modulate a voltage of a first pulsating waveform according to a voltage sampling value obtained by the sampling unit, such that a second AC output from the synthesis unit meets charging requirements.

Abstract: 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.

Abstract: 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.

Abstract: Provided are a wireless charging system, device, and method and a device to be charged. The wireless charging system includes the wireless charging device and the device to be charged. The wireless charging device includes a wireless transmitter circuit and a first communication control circuit. The device to be charged includes a battery, a wireless receiver circuit, a first charging channel, a detection circuit and a second communication control circuit. The second communication control circuit is configured to perform wireless communication with the first communication control circuit based on the output voltage and/or the output current of the wireless receiver circuit detected by the detection circuit, such that the first communication control circuit adjusts a transmitting power of the wireless transmitter circuit, to enable the output voltage and/or the output current of the wireless receiver circuit to match a charging stage where the battery presently is.

Abstract: The present disclosure discloses a charging device, a charging method, a power adapter and a terminal. The device includes: a charging receiving terminal configured to receive a first alternating current; a voltage adjusting circuit, including a first rectifier configured to rectify the first alternating current and output a first voltage with a first ripple waveform, a switch unit configured to modulate the first voltage according to a control signal to obtain a modulated first voltage, a transformer configured to output a plurality of voltages with ripple waveforms according to the modulated first voltage, and a compositing unit configured to composite the plurality of voltages to output a second alternating current; and a central control module configured to output the control signal to the switch unit so as to adjust voltage and/or current of the second alternating current in response to a charging requirement of the battery.

Abstract: 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.

Abstract: A wireless charging coil, a wireless charging assembly, and an electronic device are provided. The wireless charging coil includes a first connection end and a second connection end. The first connection end is disposed in the center of the wireless charging coil. The second connection end is disposed at an edge of the wireless charging coil. The first connection end is configured to be directly connected with a connection point on a circuit board.

Abstract: The present disclosure provides a device to be charged and a charging method. The device to be charged includes: a charging interface; a first charging circuit, coupled with the charging interface, configured to receive an output voltage and an output current of an adapter via the charging interface and to directly apply the output voltage and the output current of the adapter to both ends of a plurality of battery cells coupled in series in the device to be charged, so as to perform a direct charging on the plurality of battery cells. With the present disclosure, heat generated in the charging process can be reduced while ensuring the charging speed.

Abstract: The present disclosure discloses a charging system, a charging method and a power adapter. The system includes a power adapter and a terminal. The power adapter includes a first rectifier, a switch unit, a transformer, a second rectifier, a sampling unit, and a control unit. The control unit outputs a control signal to the switch unit, and adjusts a duty ratio of the control signal according to coupled sampling performed by the sampling unit at an auxiliary winding, such that a third voltage outputted by the second rectifier meets a charging requirement. The terminal includes a battery. When the power adapter is coupled to the terminal, the third voltage is applied to the battery.

Abstract: A charging system for a terminal, a charge method, and a power adapter are provided. The charging system includes a power adapter and a terminal. The power adapter includes a switch circuit, a second rectifying circuit, a first charging interface, and a control circuit. The control circuit modulates a duty cycle of a control signal based on voltage sampling value or current sampling value sampled by the sampling circuit so that voltage in a third pulsating waveform output by the second rectifying circuit satisfies a charging requirement. The terminal includes a battery and a second charging interface connected to the battery. The second charging interface applies the voltage in the third pulsating waveform to the battery when the second charging interface is connected to the first charging interface, so that the pulsating waveform output by the power adapter is directly applied on the battery.

Abstract: A charging device, a terminal, and a method for controlling charging are provided. The charging device includes a wireless receiving circuit, a charging interface, a charging management module, and a control module. The wireless receiving circuit is configured to convert a wireless charging signal received into charging electrical energy. The charging interface is configured to receive charging electrical energy supplied by an external power supply device. The charging management module is configured to adjust a voltage and/or current in the charging electrical energy output from the wireless receiving circuit or the charging interface. The control module is configured to control a first charging channel where the wireless receiving circuit and the charging management module are disposed to be switched on, and/or control a second charging channel where the charging interface and the charging management module are disposed to be switched on.

Abstract: The present disclosure discloses a charging system and a charging method and a power adapter. The system includes a battery, a first rectifier, a switch unit, a transformer, a second rectifier, a first charging interface, a sampling unit and a control unit. The control unit outputs a control signal to the switch unit, and adjusts a duty ratio of the control signal according to a current sampling value and/or a voltage sampling value sampled by the sampling unit, such that a third voltage with a third ripple waveform outputted by the second rectifier meets a charging requirement of the battery.