Patents by Inventor Guangchao Zhang

Guangchao Zhang 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).

  • Publication number: 20130033902
    Abstract: A power converter controller is disclosed. An example controller includes a drive signal generator coupled to generate a drive signal to control a switching of a power switch to control a transfer of energy from an input of a power supply to an output of the power supply. A feedback circuit is coupled to receive a feedback signal representative of the output of the power supply. The feedback circuit coupled to generate a control signal in response to the feedback signal. An oscillator circuit is coupled to generate an oscillating signal in response to the control signal. The drive signal generator is coupled to generate the drive signal in response to the oscillating signal. A frequency of the oscillating signal increases from a first frequency to a second frequency with respect to the control signal for a first range of control signal values. The frequency of the oscillating signal remains substantially equal to the second frequency for a second range of control signal values.
    Type: Application
    Filed: August 2, 2011
    Publication date: February 7, 2013
    Applicant: POWER INTEGRATIONS, INC.
    Inventor: Guangchao Zhang