Patents by Inventor Chia-Wrong Chang

Chia-Wrong Chang 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).

  • Capacitor multiplier
    Patent number: 7402989
    Abstract: A capacitor multiplier including a capacitor, a first voltage follower, a first impedance element, and a second impedance element is provided. The input terminal of the first voltage follower is electrically connected to the first terminal of the capacitor. Wherein, the voltage level of the output terminal of the first voltage follower changes along with the voltage level of the input terminal thereof. The first terminal of the first impedance element is electrically connected to the first terminal of the second impedance element. The second terminal of the first impedance element is electrically connected to the first terminal of the capacitor. The second terminal of the second impedance element is electrically connected to the output terminal of the first voltage follower.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: July 22, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Ke-Horng Chen, Li-Ren Huang, Chia-Wrong Chang, Le-Shian Liu
  • CAPACITOR MULTIPLIER
    Publication number: 20070165430
    Abstract: A capacitor multiplier including a capacitor, a first voltage follower, a first impedance element, and a second impedance element is provided. The input terminal of the first voltage follower is electrically connected to the first terminal of the capacitor. Wherein, the voltage level of the output terminal of the first voltage follower changes along with the voltage level of the input terminal thereof. The first terminal of the first impedance element is electrically connected to the first terminal of the second impedance element. The second terminal of the first impedance element is electrically connected to the first terminal of the capacitor. The second terminal of the second impedance element is electrically connected to the output terminal of the first voltage follower.
    Type: Application
    Filed: April 21, 2006
    Publication date: July 19, 2007
    Inventors: Ke-Horng Chen, Li-Ren Huang, Chia-Wrong Chang, Le-Shian Liu