Patents by Inventor Sheng Hao Que

Sheng Hao Que 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 and switching power supply device
    Patent number: 11699945
    Abstract: A drive circuit driving a first switching element, including: a first diode with a cathode terminal connected to a first switching element gate terminal; a second switching element with a first terminal connected to a first diode anode terminal, a second terminal connected to a first switching element gate terminal, a third terminal connected to a first switching element source terminal; a third switching element with a drain terminal connected to the first diode anode terminal, and a source terminal connected to the first switching element source terminal; a parallel circuit; and a drive transformer having a coil, one end connected to the drain terminal, the other end connected to the third switching element gate terminal, and connected to the third switching element source terminal, one end of the parallel circuit connected to one coil end, the second diode cathode terminal connected to the other end of the coil.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: July 11, 2023
    Assignee: TDK CORPORATION
    Inventors: Sheng Hao Que, Lian Wen Zou, Qing Lu Qin
  • DRIVE CIRCUIT AND SWITCHING POWER SUPPLY DEVICE
    Publication number: 20220060099
    Abstract: A drive circuit driving a first switching element, including: a first diode with a cathode terminal connected to a first switching element gate terminal; a second switching element with a first terminal connected to a first diode anode terminal, a second terminal connected to a first switching element gate terminal, a third terminal connected to a first switching element source terminal; a third switching element with a drain terminal connected to the first diode anode terminal, and a source terminal connected to the first switching element source terminal; a parallel circuit; and a drive transformer having a coil, one end connected to the drain terminal, the other end connected to the third switching element gate terminal, and connected to the third switching element source terminal, one end of the parallel circuit connected to one coil end, the second diode cathode terminal connected to the other end of the coil.
    Type: Application
    Filed: August 19, 2021
    Publication date: February 24, 2022
    Applicant: TDK CORPORATION
    Inventors: Sheng Hao Que, Lian Wen Zou, Qing Lu Qin