Abstract: A wireless charging device and a device to-be-charged are provided. The wireless charging system includes a wireless charging device and a device to-be-charged. The wireless charging device is configured to charge the device to-be-charged wirelessly. The wireless charging device includes a wireless transmitting circuit and a first communication control circuit; the device to-be-charged comprises a battery, a wireless receiving circuit, a detecting circuit, and a second communication control circuit. The second communication control circuit is configured to conduct wireless communication with the first communication control circuit, to send to the first communication control circuit at least one of an output voltage and an output current of the wireless receiving circuit detected by the detecting circuit, whereby the first communication control circuit adjusts a transmission power of the wireless transmitting circuit, to meet charging requirements of the battery.

Abstract: A wireless charging device, a wireless charging method, and a device to be charged are provided. The wireless charging device includes a wireless transmission circuit, a first communication control circuit, an external interface, and a wireless data transmission circuit. The wireless charging method includes conducting, by a wireless charging device, wireless communication with a device to be charged during wireless charging to adjust transmission power of a wireless transmission circuit of the wireless charging device, to make at least one of an output voltage and an output current of a wireless reception circuit of the device to be charged match a present charging stage of a battery of the device to be charged.

Abstract: A wireless charging apparatus, a device to be charged and a wireless charging method are provided. The wireless charging apparatus includes a voltage converting circuit, a wireless transmitting circuit, and a first control circuit. The voltage converting circuit is 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. The wireless transmitting circuit is 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.

Abstract: The present disclosure provides a wireless charging method, device, and system, and a device to be charged. The method includes: a wireless charging device receiving a request instruction sent by a device to be charged, the request instruction being configured to request the wireless charging device to provide a type of a power supply device to the device to be charged; the wireless charging device sending the type of power supply device identified by the wireless charging device to the device to be charged according to the request instruction. The type of power supply device including a fast charging type and a normal type, a maximum output power provided by the fast charging power supply device is greater than or equal to a preset value, and a maximum output power provided by the normal power supply device is less than the preset value.

Abstract: The present disclosure provides a wireless charging method, a wireless charging device, a wireless charging system and a device to be charged. The method includes: after a wireless charging device is coupled to a power supply device, the wireless charging device identifying the type of the power supply device; the wireless charging device charging a battery of a device to be charged in a target wireless charging mode according to the type of the power supply device, the target wireless charging mode being a first wireless charging mode or a second wireless charging mode, wherein a charging speed of the wireless charging device charging the battery in the first wireless charging mode is greater than a charging speed of the wireless charging device charging the battery in the second wireless charging mode.

Abstract: A data transmission method and a sending end device are provided. The method is applied to short-range wireless communication based on a high carrier frequency. During the process of a sending end device sending data to be transmitted to a receiving end device, the method includes: after short-range wireless communication interrupted between the sending end device and the receiving end device is restored, the sending end device querying recorded transmission information, wherein the transmission information is used to indicate a data block, transmission of which is not completed, in the data to be transmitted; and the sending end device sending, to the receiving end device, the data block, transmission of which is not completed, in the data to be transmitted.

Abstract: 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.

Abstract: 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.

Abstract: A device to be charged, a charging method, and a charging control circuit are provided. The device to be charged includes multiple cells coupled in series, a conversion circuit, a first charging channel, a second charging channel, and a communication control circuit. The conversion circuit is configured to receive input voltage from a power supply device, convert the input voltage into charging voltage for the multiple cells and into power supply voltage for a system of the device to be charged, charge the multiple cells according to the charging voltage, and supply power to the system of the device to be charged according to the power supply voltage.

Abstract: 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.

Abstract: A wireless charging apparatus includes a voltage converting circuit, a wireless transmitting circuit, and a first control circuit. The voltage converting circuit is 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. The wireless transmitting circuit is 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. The first control circuit is configured for wireless communication with the device to-be-charged during the wireless charging to acquire battery information of the device to-be-charged and configured to adjust, according to the battery information of the device to-be-charged, a resonant frequency of the wireless transmitting circuit to adjust a transmission power of the wireless transmitting circuit. A device to-be-charged, method and system are also provided.

Abstract: Provided are a wireless charging device, a wireless charging method, and a device to-be-charged. The wireless charging device is configured to conduct wireless communication with the device to-be-charged through communication control circuits to adjust a transmission power of the wireless charging device. The device to-be-charged includes a battery, a wireless receiving circuit, a first charging channel, a detecting circuit, and a communication control circuit.

Abstract: The present disclosure provides a wireless charging device and a wireless charging method. The wireless charging device includes a communication control module. The communication control module is configured to, when a power supply device is in a sleep state, control the power supply device to enter a wakeup state; and communicate with the power supply device in the wakeup state to determine a type of the power supply device, where the type of the power supply device includes a fast charging type and a non-fast charging type, a maximum output power of a fast charging power supply device is greater than or equal to a preset value, and a maximum output power of a non-fast charging power supply device is less than the preset value.

Abstract: The present disclosure provides a device to be charged, a wireless charging device and a control method thereof. The device to be charged includes: a wireless receiving circuit, configured to receive an electromagnetic signal transmitted by a wireless charging device and convert the electromagnetic signal to a first output voltage; a step-down circuit, configured to perform step-down process on the first output voltage to obtain a second output voltage, and charge a battery of the device to be charged based on the second output voltage; a temperature detecting circuit, configured to detect a temperature of the device to be charged; a communication control circuit, configured to send feedback information to the wireless charging device, when the temperature is larger than a preset threshold. The feedback information is configured to trigger the wireless charging device to control wireless charging process to reduce the first output voltage.

Abstract: 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.

Abstract: A device to be charged, a charging method, and a charging control circuit are provided. The device to be charged includes multiple cells coupled in series and a conversion circuit. The conversion circuit is configured to receive input voltage from a power supply device, convert the input voltage into charging voltage for the multiple cells and into power supply voltage for a system of the device to be charged, charge the multiple cells according to the charging voltage, and supply power to the system of the device to be charged according to the power supply voltage.

Abstract: Provided are a wireless charging control method, a charging control device and a device to-be-charged. The method includes: according to an output voltage of a wireless receiving circuit, determining whether a power of a wireless charging signal received by the wireless receiving circuit can meet a charging power currently required by a battery; and when the power of the wireless charging signal fails to meet the charging power currently required by the battery, reducing the charging power currently required by the battery. In the embodiments, the output voltage of the wireless receiving circuit serves as the basis for determining whether the power of the wireless charging signal can meet the charging power currently required by the battery; and the difference between the charging power received by and required by the battery is decreased by reducing the charging power currently required by the battery.

Abstract: A charging method and device, a device to be charged, a storage medium, and a chip system are provided. The charging method includes determining a battery entering a constant current charging stage if a voltage of the battery and a temperature of a device to be charged meet a preset condition; detecting the temperature of the device to be charged; reducing a charging current by ?I if the temperature of the device to be charged is greater than a first threshold value; and charging the device to be charged with the charging current reduced by ?I.

Abstract: 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.

Abstract: A wireless charging method is applied to a device to be charged configured with a wireless charging receiving circuit and includes during wireless charging, detecting at least one of a charging voltage or a charging current of the battery, and detecting a corresponding output current of the wireless charging receiving circuit simultaneously; determining a target charging power according to the at least one of the charging voltage or the charging current of the battery, and determining a target charging current according to the output current; transmitting an adjustment request to a wireless charging apparatus, wherein the adjustment request carries the at least one of the target charging power or the target charging current; and receiving adjusted wireless charging signals transmitted by the wireless charging apparatus, and performing wireless charging according to the adjusted wireless charging signals. A device to be charged is also provided.