Patents by Inventor Cheng-De Tseng

Cheng-De Tseng 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).

  • DCR sense for a COT power converter
    Patent number: 8138732
    Abstract: A DCR sense scheme is provided to sense the inductor current of a COT power converter. The DCR sense is implemented by using the direct current resistance of the output inductor of the COT power converter, and thus eliminates the ESR limitations on the type of output capacitors for stability concern. A quick response mechanism is further incorporated in the COT power converter to speed up the transient response of the COT power converter.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 20, 2012
    Assignee: Richtek Technology Corp.
    Inventors: Cheng-De Tseng, Chia-Jung Lee
  • DCR sense for a COT power converter
    Publication number: 20100033145
    Abstract: A DCR sense scheme is provided to sense the inductor current of a COT power converter. The DCR sense is implemented by using the direct current resistance of the output inductor of the COT power converter, and thus eliminates the ESR limitations on the type of output capacitors for stability concern. A quick response mechanism is further incorporated in the COT power converter to speed up the transient response of the COT power converter.
    Type: Application
    Filed: August 5, 2009
    Publication date: February 11, 2010
    Inventors: Cheng-De Tseng, Chia-Jung Lee