Patents by Inventor Jesse R. Wang

Jesse R. Wang 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).

  • Transistor drive circuit of power converter operating in a wide voltage range
    Patent number: 7471121
    Abstract: A transistor drive circuit of a power converter is developed for operating in a wide voltage range. It includes an N-type high-side transistor, a P-type high-side transistor and an N-type low-side transistor. A voltage clamp device is connected to the gate of the N-type high-side transistor to limit the maximum output voltage. A detection circuit is coupled to detect the supply voltage of the transistor drive circuit to generate a disable signal in response to the voltage level of the supply voltage. The disable signal is coupled to disable the P-type high-side transistor once the voltage level of the supply voltage is higher than a threshold voltage.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: December 30, 2008
    Assignee: System General Corp.
    Inventors: Ta-Yung Yang, Feng-Cheng Tsao, Chuh-Ching Li, Jesse R. Wang
  • Transistor Driver Circuit of Power Converter
    Publication number: 20080150503
    Abstract: A transistor drive circuit of a power converter is developed for operating in wide voltage range. It includes an N-type high-side transistor, a P-type high-side transistor and an N-type low-side transistor. A voltage clamp device is connected to the gate of the N-type high-side transistor to limit the maximum output voltage. A detection circuit is coupled to detect the supply voltage of the transistor drive circuit to generate a disable signal in response to the voltage level of the supply voltage. The disable signal is coupled to disable the P-type high-side transistor once the voltage level of the supply voltage is higher than a threshold voltage.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Inventors: Ta-Yung Yang, Feng-Cheng Tsao, Chuh-Ching Li, Jesse R. Wang