Patents by Inventor Yonghuan Ding

Yonghuan Ding 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).

  • Powered device used for power over ethernet
    Patent number: 10887117
    Abstract: A powered device (PD) used for power over Ethernet (PoE), where the PD includes an Ethernet port and a rectifier circuit. The rectifier circuit includes a first control circuit and a second control circuit, where the first control circuit is configured to control a first metal-oxide semiconductor field-effect transistor (MOSFET) and a second MOSFET, avoid turning on the first MOSFET and the second MOSFET at a PoE detection stage, and turn on at least one of the first MOSFET or the second MOSFET at a PoE power supply stage. The second control circuit is configured to control a third MOSFET and a fourth MOSFET, turn on at least one of the third MOSFET or the fourth MOSFET at the PoE power supply stage, and avoid turning on the third MOSFET and the fourth MOSFET at the PoE detection stage.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: January 5, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jincan Cao, Yonghuan Ding
  • Powered Device Used for Power Over Ethernet
    Publication number: 20190372788
    Abstract: A powered device (PD) used for power over Ethernet (PoE), where the PD includes an Ethernet port and a rectifier circuit. The rectifier circuit includes a first control circuit and a second control circuit, where the first control circuit is configured to control a first metal-oxide semiconductor field-effect transistor (MOSFET) and a second MOSFET, avoid turning on the first MOSFET and the second MOSFET at a PoE detection stage, and turn on at least one of the first MOSFET or the second MOSFET at a PoE power supply stage. The second control circuit is configured to control a third MOSFET and a fourth MOSFET, turn on at least one of the third MOSFET or the fourth MOSFET at the PoE power supply stage, and avoid turning on the third MOSFET and the fourth MOSFET at the PoE detection stage.
    Type: Application
    Filed: May 24, 2019
    Publication date: December 5, 2019
    Inventors: Jincan Cao, Yonghuan Ding