Delta Electronics, Inc.

Kun-Chi Lin

Chung-Chieh Cheng

Tien-He Chen

Shou-Chieh Lin

Kun-Jang Kuo

Hongjian Gan

Kuan-Sheng Wang

Junshan Lou

Wen-Kuan Hsu

Qinggang Kong

Jong-Wei Pwu

Ying-Chieh Wang

Chun-Chih Chen

Youjun Zhang

Jia-Dian Lu

Shu-Hao Chang

A power delivery device and a control method are shown. The power delivery device includes a power factor correction circuit, and an output voltage control circuit. The power factor correction circuit is configured to increase a power factor of the power delivery device. The output voltage control circuit is configured to control an output voltage of the power delivery device, and detect an output current of the power delivery device. The power factor correction circuit is uncontrolled by the output voltage control circuit in response to a first load state of the power delivery device, and is controlled by the output voltage control circuit in response to a second load state of the power delivery device.

Power delivery device and control method thereof

A power delivery device and a control method are shown. The power delivery device includes a power conversion circuit, a power factor correction circuit, and an output voltage control circuit. The power conversion circuit includes a primary side and a secondary side, and is configured to receive an input voltage and convert the input voltage to an output voltage. The power factor correction circuit is electrically coupled to the primary side and configured to increase the power factor of the power delivery device. The output voltage control circuit is electrically coupled to the secondary side and configured to control the voltage level of the output voltage. When the voltage level of the output voltage is lower than a predetermined level, the power factor correction circuit is deactivated.

A wall socket includes a socket housing, an output terminal, a power converter circuit and a load detection circuit. The output terminal is arranged at a side of the socket housing and configured to output a DC output voltage. The power converter circuit is arranged in the socket housing and configured to convert an input voltage to the DC output voltage according to a control signal. The load detection circuit is configured to receive an identification signal outputted by an electronic device when the electronic device is connected to the output terminal, and output the control signal according to the identification signal to adjust a voltage level of the DC output voltage.

Wall socket with load detecting circuit

A power supply apparatus with input voltage detection includes a power input side and an input detection module. The power input side has a first input terminal and a second input terminal, and the first input terminal and the second input terminal are electrically connected to a live wire and a neutral wire of an AC power source, respectively. The input detection module has two input terminals, which are corresponding electrically connected to the first input terminal and the second input terminal. The input detection module generates a detection signal to shut down the power supply apparatus when the input detection module detects that the live wire or the neutral wire is abnormal, or the live wire and the neutral wire are both abnormal.

Power supply apparatus with input voltage detection and method of operating the same

An output voltage detecting circuit includes a conducting structure, a voltage regulator, a first resistor and a second resistor. The conducting structure includes a power output return terminal, a first contact and a second contact. A compensating voltage is generated between the first and second contacts when an output current flows through the first and second contacts. The voltage regulator adjusts a first current according to a voltage across a first circuit terminal and the ground terminal of the voltage regulator, thereby generating a detecting signal according to the first current. An output voltage across the positive power output terminal and the power output return terminal is subject to voltage division by the first and second resistors to generate a divided voltage. The voltage across the first circuit terminal and the ground terminal of the voltage regulator is equal to a difference between the divided voltage and the compensating voltage.

Output voltage detecting circuit and switching power supply having such output voltage detecting circuit

A power supply device and an operating method thereof are provided. The power supply device includes a main converter and an auxiliary converter. The main converter includes a power factor corrector (PFC), a first capacitor that connects in parallel with the PFC and a DC/DC converter that connects in parallel with the first capacitor. The auxiliary converter is connected in parallel to the main converter. When the power supply device operates in a normal mode, the main converter and the auxiliary converter together provide a first output to an output load. When the power supply device is in a standby mode, the DC/DC converter is turned off so that only the auxiliary converter provides a second output to the output load. Meanwhile, the PFC is in operation to maintain the voltage of the first capacitor in order to meet the demand of the output dynamic response of the main converter.

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Taoyuan, Taiwan

Kun-Chi Lin