Patents by Inventor Yunmei LI

Yunmei LI 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).

  • Soft-start control system and method for an isolated DC-DC converter with secondary controller
    Patent number: 9948175
    Abstract: A DC-DC converter for supplying a gradually increasing voltage via a soft start circuit from a first powered domain to a second unpowered domain. The powered domain may be connected to a primary winding of a first transformer, and the unpowered domain may be connected to the secondary winding of the first transformer. The unpowered domain may respond to an applied voltage from the soft start circuit by supplying a feedback signal to the powered domain via a feedback circuit. The feedback signal indicates the power supplied from the secondary winding of the first transformer to the unpowered domain is satisfactory.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: April 17, 2018
    Assignee: Analog Devices, Inc.
    Inventors: Tianting Zhao, Yunmei Li, Baoxing Chen
  • SOFT-START CONTROL SYSTEM AND METHOD FOR AN ISOLATED DC-DC CONVERTER WITH SECONDARY CONTROLLER
    Publication number: 20120099345
    Abstract: A DC-DC converter for supplying a gradually increasing voltage via a soft start circuit from a first powered domain to a second unpowered domain. The powered domain may be connected to a primary winding of a first transformer, and the unpowered domain may be connected to the secondary winding of the first transformer. The unpowered domain may respond to an applied voltage from the soft start circuit by supplying a feedback signal to the powered domain via a feedback circuit. The feedback signal indicating the power supplied from the secondary winding of the first transformer to the unpowered domain is satisfactory.
    Type: Application
    Filed: May 5, 2011
    Publication date: April 26, 2012
    Applicant: ANALOG DEVICES, INC.
    Inventors: Tianting ZHAO, Yunmei LI, Baoxing CHEN