Patents by Inventor Po-Hsueh Kuo

Po-Hsueh Kuo 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).

  • Synchronous DC-DC converter having soft-stop function
    Patent number: 9041376
    Abstract: A synchronous DC-DC converter having a soft-stop function includes an output stage for supplying an output voltage, wherein the output stage includes a high-side transistor for charging the output voltage and a low-side transistor for discharging the output voltage; an output control circuit, coupled to the output stage, for controlling the high-side transistor and the low-side transistor of the output stage; at least one protection device, for controlling the high-side transistor to be turned off when a specific situation occurs, in order to stop supplying the output voltage; and a soft-stop control circuit, coupled to the output control circuit, for controlling the low-side transistor of the output stage to be turned on when the protection device controls the high-side transistor to be turned off or the synchronous DC-DC converter is disabled, in order to discharge the output voltage.
    Type: Grant
    Filed: February 3, 2013
    Date of Patent: May 26, 2015
    Assignee: Anpec Electronics Corporation
    Inventors: Chia-Chieh Weng, Po-Hsueh Kuo
  • SYNCHRONOUS DC-DC CONVERTER HAVING SOFT-STOP FUNCTION
    Publication number: 20140152287
    Abstract: A synchronous DC-DC converter having a soft-stop function includes an output stage for supplying an output voltage, wherein the output stage includes a high-side transistor for charging the output voltage and a low-side transistor for discharging the output voltage; an output control circuit, coupled to the output stage, for controlling the high-side transistor and the low-side transistor of the output stage; at least one protection device, for controlling the high-side transistor to be turned off when a specific situation occurs, in order to stop supplying the output voltage; and a soft-stop control circuit, coupled to the output control circuit, for controlling the low-side transistor of the output stage to be turned on when the protection device controls the high-side transistor to be turned off or the synchronous DC-DC converter is disabled, in order to discharge the output voltage.
    Type: Application
    Filed: February 3, 2013
    Publication date: June 5, 2014
    Applicant: ANPEC ELECTRONICS CORPORATION
    Inventors: Chia-Chieh Weng, Po-Hsueh Kuo