Patents by Inventor Ding Woo

Ding Woo 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).

  • Patent number: 10116224
    Abstract: One example includes a switching power converter circuit. The circuit includes a gate driver configured to generate at least one switching signal in response to a feedback signal. The circuit also includes a feedback stage configured to generate the feedback signal based on an amplitude of an output voltage at an output. The circuit further includes a power stage including at least one switch and a transformer. The at least one switch can be controlled via the respective at least one switching signal to provide a primary current through a primary winding of the transformer to induce a secondary current through a secondary winding of the transformer to generate the output voltage. The power stage further includes a self-driven synchronous rectifier stage coupled to the secondary winding to conduct the secondary current from a low voltage rail through the secondary winding.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: October 30, 2018
    Assignee: Northrop Grumman Systems Corporation
    Inventors: F. Dong Tan, Ding Woo, Kwang Yi, Hai Hoang