Patents by Inventor Meng-Hsun Yu

Meng-Hsun Yu 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).

  • Correction circuit of a switching-current sample for power converters in both CCM and DCM operation
    Patent number: 8482268
    Abstract: The present invention provides a correction circuit for a power converter. The correction circuit includes a sampling circuit, a demagnetizing-time circuit, a duty circuit, and a compensation circuit. The sampling circuit generates an average-current signal in response to a switching current of the power converter. The demagnetizing-time circuit generates a discharging-time signal in response to a switching signal and an input-voltage signal. The duty circuit generates a duty signal in response to the discharging-time signal, an on-time of the switching signal, and a switching period of the switching signal. The compensation circuit is coupled to receive the average-current signal and the duty signal for generating a corrected signal. The switching signal is utilized to switch a magnetic device for regulating an output voltage of the power converter. The corrected signal is coupled to generate the switching signal.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: July 9, 2013
    Assignee: System General Corporation
    Inventors: Ta-Yung Yang, Ying-Chi Chen, Cheng-Sung Chen, Meng-Hsun Yu
  • Correction Circuit of a Switching-Current Sample for Power Converters in Both CCM and DCM Operation
    Publication number: 20120069611
    Abstract: The present invention provides a correction circuit for a power converter. The correction circuit includes a sampling circuit, a demagnetizing-time circuit, a duty circuit, and a compensation circuit. The sampling circuit generates an average-current signal in response to a switching current of the power converter. The demagnetizing-time circuit generates a discharging-time signal in response to a switching signal and an input-voltage signal. The duty circuit generates a duty signal in response to the discharging-time signal, an on-time of the switching signal, and a switching period of the switching signal. The compensation circuit is coupled to receive the average-current signal and the duty signal for generating a corrected signal. The switching signal is utilized to switch a magnetic device for regulating an output voltage of the power converter. The corrected signal is coupled to generate the switching signal.
    Type: Application
    Filed: May 6, 2011
    Publication date: March 22, 2012
    Applicant: SYSTEM GENERAL CORPORATION
    Inventors: Ta-Yung Yang, Ying-Chi Chen, Cheng-Sung Chen, Meng-Hsun Yu