Patents by Inventor Heng-Yi Hu

Heng-Yi Hu 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).

  • Inductor operable under various supply voltages
    Patent number: 6809912
    Abstract: An inductor operable under various supply voltages includes a first coil, a second coil, a bobbin and a core, wherein the coil diameter of the first coil is larger than the coil diameter of the second coil and the first and the second coils are connected in series, whereby input electric current flows through one coil selected from said first and second coils by utilizing a selecting switch, so as to generate sufficient corresponding inductance according to various input supply voltages.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: October 26, 2004
    Assignee: Delta Electronics, Inc.
    Inventors: Heng-Yi Hu, Cheng-Pin Wang
  • Inductor operable under various supply voltages
    Publication number: 20020063617
    Abstract: An inductor operable under various supply voltages includes a first coil, a second coil, a bobbin and a core, wherein the coil diameter of the first coil is larger than the coil diameter of the second coil and the first and the second coils are connected in series, whereby input electric current flows through one coil selected from said first and second coils by utilizing a selecting switch, so as to generate sufficient corresponding inductance according to various input supply voltages.
    Type: Application
    Filed: March 30, 2001
    Publication date: May 30, 2002
    Inventors: Heng-Yi Hu, Cheng-Pin Wang