Chicony Power Technology Co., Ltd.

Tzu-Hung Wang

Che-Hao Chang

Chiuan-Shing Wu

Zhi-Hong Lu

Chang-Cheng Hsiao

Chen-Hsiung Lee

Yung-Hung Hsiao

Cheng-Chang Hsiao

Wei-Yuan Chen

Yu-Wei Li

Meng-Chi Yang

Hai-Wen Chang

A power supply apparatus with a protection function includes a pulse width modulation control unit, a pulse width modulation detecting unit, a switch unit and a feedback circuit. The feedback circuit detects a bus voltage. When the feedback circuit detects that the bus voltage is greater than a predetermined voltage, the feedback circuit sends an informing signal to the pulse width modulation control unit. The pulse width modulation control unit adjusts a duty cycle of a pulse width modulation signal and sends the pulse width modulation signal to the pulse width modulation detecting unit. When the pulse width modulation detecting unit detects that the duty cycle of the pulse width modulation signal is less than a predetermined cycle, the pulse width modulation detecting unit turns off the switch unit to stop outputting power to avoid a reverse current phenomenon.

Power supply apparatus with protection function and redundant power supply system

The linear controlling module of the present invention includes a controlling switch, a first resistor, a capacitor, and a second resistor. The controlling switch is electrically connected to a controlling signal outputting terminal of a power supplying device, the first resistor is electrically connected to the controlling switch, the capacitor is electrically connected to a electric power outputting terminal of the power supplying device and the first resistor, and the second resistor is electrically connected to the switch component of the power supplying device, the first resistor, and the capacitor. The switch component is electrically connected to an electric power outputting terminal.

Power supplying system, linear controlling module thereof, and controlling method of switching component

An output short circuit protecting device electrically connected to a power supplying device includes a first output short circuit protecting unit. The first output short circuit protecting unit includes a sensing unit, a comparing unit, a judging element, and a latching unit. The sensing unit is electrically connected to a switching unit, a first outputting resistor, and a second outputting resistor of the power supplying device. The comparing unit is electrically connected to the sensing unit. The judging element is electrically connected to the comparing unit, and a controller and a signal-controlling terminal of the power supplying device. The latching unit is electrically connected to the judging element and the signal-controlling terminal.

Output short circuit protecting device

An electric power feedback apparatus is electrically connected to a power supply apparatus. The power supply apparatus includes a power supply module, a main power output terminal and a standby power output terminal. The main power output terminal and the standby power output terminal output electric power to a power conversion system respectively. The electric power feedback apparatus includes a constant voltage compensating module, a compensating and clamping module, an adaptive current weighting module and a controller. The constant voltage compensating module is electrically connected to the main power output terminal. The compensating and clamping module is electrically connected to the standby power output terminal, the constant voltage compensating module and the power conversion system. The adaptive current weighting module is electrically connected to the standby power output terminal, the constant voltage compensating module and the power conversion system.

Electric power feedback apparatus with main power output-feedback and standby power output-feedback

A power supply avoiding an auxiliary boost circuit over voltage includes a direct current to direct current converting circuit, the auxiliary boost circuit and a power factor correction circuit. The auxiliary boost circuit includes a voltage detection unit, a control unit, a management unit and a boost unit. When the voltage detection unit detects that an output voltage of the power factor correction circuit is less than a predetermined voltage, the control unit enters a hold up time mode. Before the hold up time mode is finished, the control unit sends a first synchronization signal to the management unit, so that the management unit sends a second synchronization signal to the control unit, so that the control unit turns off the boost unit before or at the same time the management unit turns off the direct current to direct current converting circuit.

Power supply avoiding auxiliary boost circuit over voltage

A power supply apparatus includes a rectification circuit, a power factor correction circuit, an auxiliary boost circuit and a direct current to direct current conversion circuit. The auxiliary boost circuit includes an input contact, an output contact, a voltage detection unit, a control unit, a boost unit and a boost bypass unit. When a voltage value of a power factor correction power is not greater than a predetermined voltage value, the control unit is configured to turn off the boost bypass unit and turn on the boost unit, so that the boost unit boosts the power factor correction power and then the power factor correction power is sent to the direct current to direct current conversion circuit through the boost unit and the output contact.

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Taipei, Taiwan

Tzu-Hung Wang