Patents by Inventor Vifor WANG

Vifor WANG 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).

  • Devices, systems, and methods for power supplies
    Patent number: 11784579
    Abstract: A rectifier includes a first input and a second input that receive an unrectified signal, a first circuit portion including a first transistor coupled to the second input, a second circuit portion including a second transistor coupled to the first input, a third circuit portion including a third transistor coupled to the first input, a fourth circuit portion including a fourth transistor coupled to the second input. The first, second, third, and fourth circuit portions are operable to convert the unrectified signal into a rectified signal. The rectifier includes a first adjustment circuit coupled to a gate of the third transistor, and a second adjustment circuit coupled to a gate of the fourth transistor. The first adjustment circuit and the second adjustment circuit are configured to control a dead time between an on-state of the third transistor and an on-state of the fourth transistor.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: October 10, 2023
    Assignee: Flex Ltd.
    Inventors: Vifor Wang, Steven Shen, Baoming Mei, Huamin Xu
  • DEVICES, SYSTEMS, AND METHODS FOR POWER SUPPLIES
    Publication number: 20220021300
    Abstract: A rectifier includes a first input and a second input that receive an unrectified signal, a first circuit portion including a first transistor coupled to the second input, a second circuit portion including a second transistor coupled to the first input, a third circuit portion including a third transistor coupled to the first input, a fourth circuit portion including a fourth transistor coupled to the second input. The first, second, third, and fourth circuit portions are operable to convert the unrectified signal into a rectified signal. The rectifier includes a first adjustment circuit coupled to a gate of the third transistor, and a second adjustment circuit coupled to a gate of the fourth transistor. The first adjustment circuit and the second adjustment circuit are configured to control a dead time between an on-state of the third transistor and an on-state of the fourth transistor.
    Type: Application
    Filed: July 7, 2021
    Publication date: January 20, 2022
    Applicant: Flex Ltd.
    Inventors: Vifor WANG, Steven SHEN, Baoming MEI, Huamin XU