Patents by Inventor Yiyong Pu

Yiyong Pu 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).

  • Surge protection circuit, switching power supply, and surge protection method
    Patent number: 9391445
    Abstract: A surge protection circuit, a switching power supply, and a surge protection method are provided that can prevent a power supply from being damaged by a high energy surge voltage discharged from a terminal device to an output end of a power supply. The surge protection circuit is applied to the switching power supply. The power supply includes a transformer. The circuit includes a surge protection tube. When a surge voltage on the terminal device is greater than a discharge voltage of the surge protection tube, the surge protection tube is conducted and discharges the surge voltage on the terminal device to the ground wire end at the high voltage side of the transformer. The embodiments of the present invention are applicable to the field of electronic technologies.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: July 12, 2016
    Assignee: Huawei Device Co., Ltd.
    Inventors: Liangang Sun, Wei Di, Mei Zou, Yiyong Pu
  • Surge Protection Circuit, Switching Power Supply, and Surge Protection Method
    Publication number: 20140334043
    Abstract: A surge protection circuit, a switching power supply, and a surge protection method are provided that can prevent a power supply from being damaged by a high energy surge voltage discharged from a terminal device to an output end of a power supply. The surge protection circuit is applied to the switching power supply. The power supply includes a transformer. The circuit includes a surge protection tube. When a surge voltage on the terminal device is greater than a discharge voltage of the surge protection tube, the surge protection tube is conducted and discharges the surge voltage on the terminal device to the ground wire end at the high voltage side of the transformer. The embodiments of the present invention are applicable to the field of electronic technologies.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 13, 2014
    Inventors: Liangang Sun, Wei Di, Mei Zou, Yiyong Pu