Patents by Inventor Shaohui FENG

Shaohui FENG 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).

  • AC voltage regulating circuit and method and transformer
    Patent number: 11689110
    Abstract: An AC voltage regulating circuit, method and transformer are disclosed in the present application. The AC voltage regulating circuit includes an AC/DC converter, a switch converter, and a switch controller. The AC/DC converter includes an AC power supply input end and a DC conversion output end. The switch converter includes a switch AC input end, a switch DC input end, a regulated voltage output end, an AC controllable switch assembly, a positive voltage DC controllable switch assembly and a negative voltage DC controllable switch assembly. The switch controller includes a power sampling end, a reference sampling end, an AC control end, a DC positive voltage control end and a DC negative voltage control end.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: June 27, 2023
    Inventors: Yongsong Zhang, Shaohui Feng
  • AC VOLTAGE REGULATING CIRCUIT AND METHOD AND TRANSFORMER
    Publication number: 20220255440
    Abstract: An AC voltage regulating circuit, method and transformer are disclosed in the present application. The AC voltage regulating circuit includes an AC/DC converter, a switch converter, and a switch controller. The AC/DC converter includes an AC power supply input end and a DC conversion output end. The switch converter includes a switch AC input end, a switch DC input end, a regulated voltage output end, an AC controllable switch assembly, a positive voltage DC controllable switch assembly and a negative voltage DC controllable switch assembly. The switch controller includes a power sampling end, a reference sampling end, an AC control end, a DC positive voltage control end and a DC negative voltage control end.
    Type: Application
    Filed: June 29, 2021
    Publication date: August 11, 2022
    Inventors: Yongsong ZHANG, Shaohui FENG
  • Car dash camera
    Patent number: D988388
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: June 6, 2023
    Assignee: Hangzhou Zhifei Electronic Commerce Co., Ltd.
    Inventors: Shaohui Feng, Yongtao Huang
  • Car dash camera
    Patent number: D1007564
    Type: Grant
    Filed: July 25, 2023
    Date of Patent: December 12, 2023
    Assignee: Shenzhen Mairuixing Network Technology Co., Ltd.
    Inventors: Shaohui Feng, Yongtao Huang