Patents by Inventor Xiofeng Yao

Xiofeng Yao 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).

  • Power conversion apparatus and method for controlling output impedance of power conversion apparatus
    Patent number: 11888321
    Abstract: A power conversion apparatus and a method for controlling an output impedance of a power conversion apparatus are provided to resolve a prior-art problem of relatively low accuracy of a method for determining a working status of a power conversion apparatus. The method includes: adjusting the output impedance of the power conversion apparatus to a first impedance when the power conversion apparatus does not satisfy a start condition; or adjusting the output impedance of the power conversion apparatus to a second impedance when the power conversion apparatus satisfies a start condition, where the first impedance is not equal to the second impedance.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: January 30, 2024
    Assignee: Huawei Digital Power Technologies Co.., Ltd.
    Inventor: Xiofeng Yao