Delta Electronics, Inc.

Min-Cheng Chiang

Te-Chih Peng

Wei-Chih Hung

Yen-Wei Lin

Ming-Hsiang Lo

Chih-Hong Wu

Shih-Chang Chuang

Yung-Chin Wang

A power supply system includes a plurality of power supply units and a plurality of battery units. Each power supply unit is coupled to a common bus through a first switch. Each battery unit is corresponding to each power supply unit, and is coupled to the common bus through a second switch. Any one of the power supply units turns on the corresponding first switch and turns on the second switches of other battery units so that the power supply unit acquires power electricity from other battery units through the common bus.

Power supply system and method of operating the same

A power supply includes a transformer winding, a switching circuit, a controller and a filter circuit. The transformer winding is configured to provide a first voltage. The switching circuit is coupled to the transformer winding and includes a first and a second switching unit. On the condition that the power supply is operated under a standby mode, the controller controls the first and the second switching units to provide a discharging path between two terminals of the transformer winding. On the condition that the power supply is operated under an operating mode, the controller controls the switching circuit such that the switching circuit provides a second voltage according to the first voltage. The filter circuit is coupled to the switching circuit and configured to filter the second voltage to provide an output voltage.

Power supply and residual voltage discharging method

A power supply device includes a voltage converting circuit and a mode switching circuit. The voltage converting circuit is configured to receive a first voltage and convert the first voltage to a second voltage. The mode switching circuit is configured to provide an output voltage and an output current to a load according to the second voltage. The mode switching circuit includes a switch configured to maintain on or off on the condition that the power supply device is operated under a constant voltage output mode such that the value of the output voltage corresponds to the second voltage, and the switch is configured to switch between on and off on the condition that the power supply device is operated under a constant current output mode such that the output current of the mode switching circuit is a constant value.

Power supply device and control method thereof

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Taoyuan, Taiwan

Min-Cheng Chiang