Patents by Inventor Shih-Chuan Chen

Shih-Chuan Chen 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).

  • Discharge circuit configured for filter capacitor of power factor connector and having a control unit and a discharge unit
    Patent number: 8289004
    Abstract: A discharge circuit includes an OC (Optical Coupler), a capacitor, an NPN-type transistor, and a discharge unit. The discharge circuit is parallel connected to a PFC (power factor corrector) circuit which includes a filter capacitor. The discharge unit has a MOSFET and a discharge resistor. A drain of the MOSFET is connected to a first terminal of the PFC circuit via the discharge resistor, a gate thereof is connected the anode of the capacitor, and a source thereof is connected to ground.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: October 16, 2012
    Assignee: Foxsemicon Integrated Technology, Inc.
    Inventors: Lung-Yu Hung, Sheng-Hsiang Kung, Shih-Chuan Chen, Chih-Ming Lai
  • DISCHARGE CIRCUIT
    Publication number: 20110062919
    Abstract: A discharge circuit includes an OC (Optical Coupler), a capacitor, an NPN-type transistor, and a discharge unit. The discharge circuit is parallel connected to a PFC (power factor corrector) circuit which includes a filter capacitor. The discharge unit has a MOSFET and a discharge resistor. A drain of the MOSFET is connected to a first terminal of the PFC circuit via the discharge resistor, a gate thereof is connected the anode of the capacitor, and a source thereof is connected to ground.
    Type: Application
    Filed: April 21, 2010
    Publication date: March 17, 2011
    Applicant: FOXSEMICON INTEGRATED TECHNOLOGY, INC.
    Inventors: LUNG-YU HUNG, SHENG-HSIANG KUNG, SHIH-CHUAN CHEN, CHIH-MING LAI