Patents by Inventor Ko Hsiao

Ko Hsiao 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).

  • Drive circuit for reducing inductive kickback voltage
    Patent number: 7639064
    Abstract: In one embodiment a drive circuit includes two comparators which are adapted to sense kickback voltage generated in an inductive load and conduct two field-effect transistors connected to ground in a very short period of time so as to quickly reduce the kickback voltage to a minimum value. In another embodiment only one comparator is provided.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: December 29, 2009
    Assignee: Eutech Microelectronic Inc.
    Inventors: Ko Hsiao, Chiang Sun
  • Drive circuit for reducing inductive kickback voltage
    Publication number: 20090184738
    Abstract: In one embodiment a drive circuit includes two comparators which are adapted to sense kickback voltage generated in an inductive load and conduct two field-effect transistors connected to ground in a very short period of time so as to quickly reduce the kickback voltage to a minimum value. In another embodiment only one comparator is provided.
    Type: Application
    Filed: January 21, 2008
    Publication date: July 23, 2009
    Inventors: Ko Hsiao, Chaing Sun