Patents by Inventor Gege Yang

Gege Yang 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).

  • Uninterrupted power supply and the method for driving its converters
    Patent number: 7130202
    Abstract: This invention relates to a method for driving converts of an uninterrupted power supply (UPS), characterized in that the generating circuit of driving signal for power factor correction generates two driving signals (DRV1, DRV2) to drive the switch transistors (Q9, Q11) of the positive and negative power factor correction branch respectively, the holding and shifting circuit of driving pulse-width after the generating circuit of driving signal for power factor correction holds and shifts the pulse-width of the two driving signals, and drives the switch transistors (Q10, Q12) parallel to the aforesaid switch transistors in the positive and negative power factor correction branch respectively. Since a circuit for holding the pulse-width is introduced, the currents of the switch transistors of the two parallel boost converters are maintained substantially the same, thereby improving the reliability of the uninterrupted power supply system.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: October 31, 2006
    Assignee: Emerson Network Power Co., Ltd.
    Inventor: Gege Yang
  • Uninterrupted power supply and the method for driving its converters
    Publication number: 20050052084
    Abstract: This invention relates to a method for driving converts of an uninterrupted power supply (UPS), characterized in that the generating circuit of driving signal for power factor correction generates two driving signals (DRV1, DRV2) to drive the switch transistors (Q9, Q11) of the positive and negative power factor correction branch respectively, the holding and shifting circuit of driving pulse-width after the generating circuit of driving signal for power factor correction holds and shifts the pulse-width of the two driving signals, and drives the switch transistors (Q10, Q12) parallel to the aforesaid switch transistors in the positive and negative power factor correction branch respectively. Since a circuit for holding the pulse-width is introduced, the currents of the switch transistors of the two parallel boost converters are maintained substantially the same, thereby improving the reliability of the uninterrupted power supply system.
    Type: Application
    Filed: January 28, 2003
    Publication date: March 10, 2005
    Inventor: Gege Yang