Patents by Inventor Feng Pang

Feng Pang 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).

  • Techniques of ripple reduction for charge pumps
    Patent number: 7683700
    Abstract: A charge pump system for supplying an output voltage to a load is described. It includes a regulation circuit connected to receive the output voltage and derive an enable signal from it and multiple charge pump circuits connected in parallel to supply the output voltage. Each of the charge pump circuits is also connected to receive a clock signal and the enable signal. The system also includes one or more delay circuit elements, where a corresponding one or more, but less than all, of the charge pump circuits are connectable to receive the enable signal delayed by the corresponding delay circuit element.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: March 23, 2010
    Assignee: SanDisk Corporation
    Inventors: Jonathan H. Huynh, Qui Vi Nguyen, Feng Pang