Patents by Inventor Te-An Tsai

Te-An Tsai 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).

  • Active power factor correction circuit
    Patent number: 6570366
    Abstract: An active power factor correction circuit. The circuit comprises a voltage source having a first end and a second end, an inductor having an end coupled to the first end of the voltage source, a first rectifying device having an anode coupled to the other end of the inductor and a cathode, a second rectifying device having a cathode coupled to the cathode of the first rectifying device and an anode, a first switching device having a first terminal coupled to the anode of the first rectifying device and a second terminal, a second switching device, having a first terminal coupled to an anode of the second rectifying device and the second end of the voltage source and a second terminal, a capacitor having two ends coupled to the cathode of the second rectifying device and the second terminal of the second switching device respectively, and an auxiliary circuit for switching the first and second switching devices under zero voltage.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: May 27, 2003
    Assignee: Industrial Technology Research Institute
    Inventors: Pao-Chuan Lin, Yung-Hsiang Liu, Yi-Hua Liu, Hsiao-Chih Ku, Te-An Tsai
  • ACTIVE POWER FACTOR CORRECTION CIRCUIT
    Publication number: 20030090242
    Abstract: An active power factor correction circuit. The circuit comprises a voltage source having a first end and a second end, an inductor having an end coupled to the first end of the voltage source, a first rectifying device having an anode coupled to the other end of the inductor and a cathode, a second rectifying device having a cathode coupled to the cathode of the first rectifying device and an anode, a first switching device having a first terminal coupled to the anode of the first rectifying device and a second terminal, a second switching device, having a first terminal coupled to an anode of the second rectifying device and the second end of the voltage source and a second terminal, a capacitor having two ends coupled to the cathode of the second rectifying device and the second terminal of the second switching device respectively, and an auxiliary circuit for switching the first and second switching devices under zero voltage.
    Type: Application
    Filed: December 27, 2001
    Publication date: May 15, 2003
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Pao-Chuan Lin, Yung-Hsiang Liu, Yi-Hua Liu, Hsiao-chih Ku, Te-An Tsai