Patents by Inventor Maodeng Li

Maodeng 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).

  • Multiple switches and a delay circuit
    Patent number: 8665002
    Abstract: In a general aspect, an apparatus can include a first switch configured to be coupled to a power source and configured to switch in response to an edge of a control signal. The apparatus can include delay circuit can be configured to produce a delay signal that has an edge corresponding to the edge of the control signal, the edge of the delay signal being offset from the edge of the control signal. The apparatus can also include a second switch can be configured to be coupled to the power source in parallel with the first switch and configured to switch in response to the edge of the delay signal, the second switch having a size smaller than a size of the first switch.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: March 4, 2014
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Maodeng Li, Hai Tao
  • LOW SUPPLY NOISE POWER STAGE ARRANGEMENT FOR A SWITCH REGULATOR
    Publication number: 20120092059
    Abstract: In a general aspect, an apparatus can include a first switch configured to be coupled to a power source and configured to switch in response to an edge of a control signal. The apparatus can include delay circuit can be configured to produce a delay signal that has an edge corresponding to the edge of the control signal, the edge of the delay signal being offset from the edge of the control signal. The apparatus can also include a second switch can be configured to be coupled to the power source in parallel with the first switch and configured to switch in response to the edge of the delay signal, the second switch having a size smaller than a size of the first switch.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 19, 2012
    Inventors: Maodeng Li, Hai Tao