Patents by Inventor Yu-Xian ZENG

Yu-Xian ZENG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250149968
    Abstract: A phase power supply path switching circuit includes three phase input ends, three phase output ends, a matrix switch unit, a detection unit, and a control unit. The matrix switch unit includes a plurality of bidirectional switches coupled between the three phase input ends and the three phase output ends. The detection unit is coupled to a first phase line, a second phase line, and a third phase line and detects voltages thereof. The control unit is coupled to the detection unit and the matrix switch unit, and controls, in response to detecting that a first line voltage between the first phase line and the second phase line is zero and a second line voltage between the second phase line and the third phase line is within a polarity half cycle, the plurality of bidirectional switches to switch a first phase power supply path with a second power supply path.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 8, 2025
    Inventors: Yen-Shin Lai, Min-Hung Zheng, Yu-Xian Zeng
  • Patent number: 12244140
    Abstract: A power supply management circuit includes a first contact receiving a transmitted voltage, a second contact outputting the transmitted voltage, a relay coupled between the first contact and the second contact, a discharge unit coupled to the relay in parallel, and an activation unit coupled to the discharge unit. When the power supply management circuit receives a control signal, the discharge unit is turned on or off, and the relay enters into a switching procedure. When the control signal is an ON signal, the activation unit generates a driving voltage to turn on the discharge unit, the relay enters into a turn-on procedure, and the transmitted voltage is transmitted to the second contact through the discharge unit; after the switching procedure is completed, the activation unit stops generating the driving voltage to turn off the discharge unit, and the transmitted voltage is transmitted to the second contact through the relay.
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: March 4, 2025
    Assignee: Chicony Power Technology Co., Ltd.
    Inventor: Yu-Xian Zeng
  • Publication number: 20240396329
    Abstract: A power supply management circuit includes a first contact receiving a transmitted voltage, a second contact outputting the transmitted voltage, a relay coupled between the first contact and the second contact, a discharge unit coupled to the relay in parallel, and an activation unit coupled to the discharge unit. When the power supply management circuit receives a control signal, the discharge unit is turned on or off, and the relay enters into a switching procedure. When the control signal is an ON signal, the activation unit generates a driving voltage to turn on the discharge unit, the relay enters into a turn-on procedure, and the transmitted voltage is transmitted to the second contact through the discharge unit; after the switching procedure is completed, the activation unit stops generating the driving voltage to turn off the discharge unit, and the transmitted voltage is transmitted to the second contact through the relay.
    Type: Application
    Filed: July 28, 2023
    Publication date: November 28, 2024
    Inventor: Yu-Xian Zeng
  • Patent number: 11682965
    Abstract: A power supply with lightning protection includes a surge voltage suppression apparatus, an electromagnetic interference control circuit, a surge current bypass apparatus, an active bridge rectifier circuit, a power factor correction circuit, and a DC-to-DC conversion circuit. The surge voltage suppression apparatus is used to increase a tolerance of a surge voltage for the power supply. The electromagnetic interference control circuit is coupled to the surge voltage suppression apparatus. The surge current bypass apparatus is used to increase a tolerance of a surge current for the power supply. The active bridge rectifier circuit is used to rectify an input voltage. The power factor correction circuit is used to adjust the rectified input voltage to provide an adjusted input voltage on a bulk capacitor. The DC-to-DC conversion circuit is used to convert the adjusted input voltage into a DC output voltage.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: June 20, 2023
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD
    Inventors: Yung-Hung Hsiao, Chia-Hsien Yen, Cheng-Chang Hsiao, Che-Han Li, Yu-Xian Zeng
  • Publication number: 20220407309
    Abstract: A power supply with lightning protection includes a surge voltage suppression apparatus, an electromagnetic interference control circuit, a surge current bypass apparatus, an active bridge rectifier circuit, a power factor correction circuit, and a DC-to-DC conversion circuit. The surge voltage suppression apparatus is used to increase a tolerance of a surge voltage for the power supply. The electromagnetic interference control circuit is coupled to the surge voltage suppression apparatus. The surge current bypass apparatus is used to increase a tolerance of a surge current for the power supply. The active bridge rectifier circuit is used to rectify an input voltage. The power factor correction circuit is used to adjust the rectified input voltage to provide an adjusted input voltage on a bulk capacitor. The DC-to-DC conversion circuit is used to convert the adjusted input voltage into a DC output voltage.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 22, 2022
    Inventors: Yung-Hung HSIAO, Chia-Hsien YEN, Cheng-Chang HSIAO, Che-Han LI, Yu-Xian ZENG