Abstract: A charging system for a mobile device including a charging connector, a first charging component, a second charging component, a flexible printed circuit board, a first battery, and a second battery is provided. The first charging component includes a first input terminal electrically connected to the charging connector and a first output terminal. The second charging component includes a second input terminal electrically connected to the first output terminal and a second output terminal. The flexible printed circuit board includes a first charging connecting terminal and a second charging connecting terminal. The first charging connecting terminal is electrically connected to the second output terminal, and the second charging connecting terminal is electrically connected to a ground terminal. The flexible printed circuit board electrically connects the first battery and the second battery in series between the first charging connecting terminal and the second charging connecting terminal.

Abstract: A power system applied to a handheld device including a battery, a first connecting port, a second connecting port, a first detector, a second detector, a power delivery controller, a control unit, and a switching element is provided. The first connecting port is electrically connected to the battery through a first charging path. The second connecting port is electrically connected to the battery through a second charging path. The first detector is electrically connected to the first connecting port to generate a first detection signal. The second detector is electrically connected to the second connecting port to generate a second detection signal. The control unit controls the switching element according to the first detection signal and the second detection signal to selectively electrically connect the power delivery controller to the first connecting port or the second connecting port and controls conduction statuses of the charging paths.

Abstract: A power module adapted to a computer system is provided in the disclosure. The power module includes three batteries, a first voltage output terminal, a second voltage output terminal, a third voltage output terminal, and a charging/discharging control unit. The charging/discharging control unit determines a quantity of serially connected batteries based on a load signal of the computer system, to supply a first voltage to the first voltage output terminal, a second voltage to the second voltage output terminal, or a third voltage to the third voltage output terminal. The first voltage, the second voltage, and the third voltage correspond to different quantities of batteries. The disclosure further provides a power supply method.

Abstract: A charging device connected to a power source for charging a plurality of electronic devices is provided. Each of the electronic devices has a predetermined charging power. The charging device comprises a power input end, a plurality of power output ends, a plurality of charging units, and a controller. The power input end is connected to the power source. The power output ends are utilized to connect the electronic devices. The charging units are electrically connected to the power output ends respectively. The controller is electrically connected to the power input end, the power output ends and the charging units for accessing an output power of the power source via the power input and each of the predetermined charging powers via the power output ends, and controlling the charging units according to the output power and the predetermined charging powers.

Abstract: An accessory device, and an electronic system and an operation method thereof are provided. The accessory device includes a functional module, a first connection interface, a second connection interface, a switch module, and a microcontroller. The first connection interface is configured to be coupled to an external first electronic device. The second connection interface is configured to be coupled to an external second electronic device. The switch module is disposed between the first connection interface and the second connection interface, and between the first connection interface and the functional module. The microcontroller controls the switch module, so that at least one of the first electronic device, the second electronic device, and the functional module supplies power to at least another one of the first electronic device, the second electronic device, and the functional module.

Abstract: An electronic system includes a first device and a second device is provided. The first device includes a power connector, a first connector, a first battery, and a charging controller. The second device includes a second connector and a second battery. The power connector is configured to receive an external voltage. The first battery is electrically connected to the power connector and the first connector. The charging controller is electrically connected to the power connector and the first battery. The second connector is utilized for connecting the first connector. The second battery is electrically connected to the second connector. When the first connector is connected to the second connector, the charging controller selectively connects the first battery and the second battery in a series via the first connector and the second connector according to the level of the first battery and the second battery.

Abstract: A power system including a battery, a first port, a first converter, a second port, a second converter, a switch, a power controller, and a control unit is provided. The first port is electrically connected to the battery through a first charging/discharging path. The second port is electrically connected to the battery through a second charging/discharging path and is electrically connected to the first port through a third charging/discharging path. The first converter and the second converter are disposed on the first charging/discharging path and the second charging/discharging path respectively. The switch is disposed on the third charging/discharging path. The power controller is electrically connected to the first port and the second port for forming a power transmission mode with an external device. The control unit is configured to control the first converter, the second converter, and the switch according to the power transmission mode.

Abstract: A power system applied to a handheld device including a battery, a first connecting port, a second connecting port, a first detector, a second detector, a power delivery controller, a control unit, and a switching element is provided. The first connecting port is electrically connected to the battery through a first charging path. The second connecting port is electrically connected to the battery through a second charging path. The first detector is electrically connected to the first connecting port to generate a first detection signal. The second detector is electrically connected to the second connecting port to generate a second detection signal. The control unit controls the switching element according to the first detection signal and the second detection signal to selectively electrically connect the power delivery controller to the first connecting port or the second connecting port and controls conduction statuses of the charging paths.

Abstract: A power system including a battery, a first port, a first converter, a second port, a second converter, a switch, a power controller, and a control unit is provided. The first port is electrically connected to the battery through a first charging/discharging path. The second port is electrically connected to the battery through a second charging/discharging path and is electrically connected to the first port through a third charging/discharging path. The first converter and the second converter are disposed on the first charging/discharging path and the second charging/discharging path respectively. The switch is disposed on the third charging/discharging path. The power controller is electrically connected to the first port and the second port for forming a power transmission mode with an external device. The control unit is configured to control the first converter, the second converter, and the switch according to the power transmission mode.

Abstract: A charge-discharge device and a control method of the charge-discharge device are provided. The control method of the charge-discharge device comprising: receiving an input voltage signal via a configuration channel of a USB port; sampling the input voltage signal in a predetermined period to generate a plurality of sampling values; selectively connecting the configuration channel to a pull-down circuit or a pull-up circuit according to the sampling values, receiving a first charging voltage via a power channel of the USB port when the configuration channel is connected to the pull-down circuit, and outputting a second charging voltage via the power channel when the configuration channel is connected to the pull-up circuit.

Abstract: A charge-discharge device and a control method of the charge-discharge device are provided. The control method of the charge-discharge device comprising: receiving an input voltage signal via a configuration channel of a USB port; sampling the input voltage signal in a predetermined period to generate a plurality of sampling values; selectively connecting the configuration channel to a pull-down circuit or a pull-up circuit according to the sampling values, receiving a first charging voltage via a power channel of the USB port when the configuration channel is connected to the pull-down circuit, and outputting a second charging voltage via the power channel when the configuration channel is connected to the pull-up circuit.

Abstract: A charging circuit and a charging method of a battery are disclosed. The charging circuit provides a charging current to charge the battery. The charging circuit includes a charging control module, a current detecting module and a compensation module. The charging control module provides a charging voltage. The current detecting module detects the charging current, and generates a detecting voltage according to the charging current. The compensation module detects the charging voltage, and provides a feedback voltage to the charging control module according to the detecting voltage and the charging voltage.

Abstract: A boost converter and a power control method thereof. The boost converter includes an inductor, a first switch unit, a second switch unit, a discharging loop and a detecting circuit. The inductor is electrically connected to a power input end. The first switch unit is electrically connected between the inductor and ground. The second switch unit is electrically connected between the inductor and an output end. The discharging loop is connected with the inductor in parallel and includes a third switch unit. The detecting circuit is used to detect a discharging value of the inductor. When the discharging value exceeds a threshold value, the third switch unit is turned on, and the inductor releases energy via the discharging loop.

Abstract: A wireless charging device includes a plurality of power supply modules, a control unit and a charge module. Each of the power supply modules includes a receiver and a conduction circuit. The receiver outputs an induction current. The conduction circuit is coupled to the receiver and generates an output signal according to the induction current. The control unit is coupled to the power supply modules and generates a control signal according to the induction current outputted by the receivers. The charge module is coupled to the power supply modules and generates a charge current according to the output signal generated from the power supply modules. The control unit adjusts the maximum value of the charge current according to the number of the power supply modules which generate the induction current.

Abstract: A boost converter and a power control method thereof. The boost converter includes an inductor, a first switch unit, a second switch unit, a discharging loop and a detecting circuit. The inductor is electrically connected to a power input end. The first switch unit is electrically connected between the inductor and ground. The second switch unit is electrically connected between the inductor and an output end. The discharging loop is connected with the inductor in parallel and includes a third switch unit. The detecting circuit is used to detect a discharging value of the inductor. When the discharging value exceeds a threshold value, the third switch unit is turned on, and the inductor releases energy via the discharging loop.

Abstract: A charging circuit and a charging method of a battery are disclosed. The charging circuit provides a charging current to charge the battery. The charging circuit includes a charging control module, a current detecting module and a compensation module. The charging control module provides a charging voltage. The current detecting module detects the charging current, and generates a detecting voltage according to the charging current. The compensation module detects the charging voltage, and provides a feedback voltage to the charging control module according to the detecting voltage and the charging voltage.

Abstract: A wireless charging device includes a plurality of power supply modules, a control unit and a charge module. Each of the power supply modules includes a receiver and a conduction circuit. The receiver outputs an induction current. The conduction circuit is coupled to the receiver and generates an output signal according to the induction current. The control unit is coupled to the power supply modules and generates a control signal according to the induction current outputted by the receivers. The charge module is coupled to the power supply modules and generates a charge current according to the output signal generated from the power supply modules. The control unit adjusts the maximum value of the charge current according to the number of the power supply modules which generate the induction current.

Abstract: A multi-phase voltage regulator includes a pulse width modulation control unit, a pulse signal extension circuit, M counts of current providing paths, and a feedback signal switching circuit. The pulse width modulation control unit generates N counts of pulse signals in a first cycle period. The pulse signal extension circuit receives the N counts of pulse signals in a second cycle period and divides the N counts of pulse signals into M counts of pulse signals, wherein M=N×2K, K is a positive integer, and the second cycle period is 2K times the first cycle period. The M counts of current providing paths generate corresponding M counts of sensing voltages. The feedback signal switching circuit receives the M counts of sensing voltages, successively switches the M counts of sensing voltages into N counts of sensing voltages, and transmits the N counts of sensing voltages to the pulse width modulation control unit.

Abstract: The present invention provides an image processing method for a display device. The method includes: calculating an average brightness of an image; adjusting the average brightness to generate an adjusted average brightness; utilizing Brightness Preserving Bi-Histogram Equalization (BBHE) and the adjusted average brightness to process the image; and displaying the image.

Abstract: A multi-phase voltage regulator includes a pulse width modulation control unit, a pulse signal extension circuit, M counts of current providing paths, and a feedback signal switching circuit. The pulse width modulation control unit generates N counts of pulse signals in a first cycle period. The pulse signal extension circuit receives the N counts of pulse signals in a second cycle period and divides the N counts of pulse signals into M counts of pulse signals, wherein M=N×2K, K is a positive integer, and the second cycle period is 2K times the first cycle period. The M counts of current providing paths generate corresponding M counts of sensing voltages. The feedback signal switching circuit receives the M counts of sensing voltages, successively switches the M counts of sensing voltages into N counts of sensing voltages, and transmits the N counts of sensing voltages to the pulse width modulation control unit.