Patents by Inventor Zhishun Li

Zhishun 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).

  • Circuitry for driving light emitting diodes and associated methods
    Patent number: 8525423
    Abstract: Circuitry and methods for driving a plurality of LED strings are disclosed herein. In one embodiment, the circuitry comprises a plurality of current regulating circuits electrically coupled to the LED strings and are configured to regulate a current flowing through the LED strings. At least two control circuits are coupled to the current regulating circuits and are configured to generate a control signal according to terminal voltages of the corresponding current regulating circuits. A voltage converter is electrically coupled to the LED strings and to the at least two control circuits, and is configured to regulate the DC driving voltage according to the at least two control signals.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: September 3, 2013
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Bo Yu, Yuancheng Ren, Lei Du, Naixing Kuang, Zhishun Li
  • CIRCUITRY FOR DRIVING LIGHT EMITTING DIODES AND ASSOCIATED METHODS
    Publication number: 20110234122
    Abstract: Circuitry and methods for driving a plurality of LED strings are disclosed herein. In one embodiment, the circuitry comprises a plurality of current regulating circuits electrically coupled to the LED strings and are configured to regulate a current flowing through the LED strings. At least two control circuits are coupled to the current regulating circuits and are configured to generate a control signal according to terminal voltages of the corresponding current regulating circuits. A voltage converter is electrically coupled to the LED strings and to the at least two control circuits, and is configured to regulate the DC driving voltage according to the at least two control signals.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 29, 2011
    Inventors: Bo Yu, Yuancheng Ren, Lei Du, Naixing Kuang, Zhishun Li