Patents by Inventor Thien Khanh Luong

Thien Khanh Luong 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).

  • Gate driver to decrease EMI with shorter dead-time
    Patent number: 10826480
    Abstract: An integrated circuit includes a gate driver circuit that controls high side and low side transistors to operate in buck or boost mode. In buck operating mode, after switching off the low side transistor, the gate driver circuit controls the high side transistor in a constant current mode. After the low side transistor is disabled and no longer conducts current, then the gate driver circuit controls the high side transistor to operate in full-enhancement mode. In boost operating mode, after switching off the high side transistor, the gate driver circuit controls the low side transistor in a constant current mode. After the high side transistor is disabled, then the gate driver circuit controls the low side switching transistor to operate in full-enhancement mode. In both buck and boost operation, the gate driver circuit operates without dead time in which both the high side and low side transistors are off.
    Type: Grant
    Filed: July 1, 2017
    Date of Patent: November 3, 2020
    Assignee: Active-Semi, Inc.
    Inventors: Thinh Ba Nguyen, Thien Khanh Luong, Thuc Huu Lam, Hue Khac Trinh
  • Gate driver to decrease EMI with shorter dead-time
    Patent number: 10790812
    Abstract: An integrated circuit includes a gate driver circuit that controls high side and low side transistors to operate in buck or boost mode. In buck operating mode, after switching off the low side transistor, the gate driver circuit controls the high side transistor in a constant current mode. After the low side transistor is disabled and no longer conducts current, then the gate driver circuit controls the high side transistor to operate in full-enhancement mode. In boost operating mode, after switching off the high side transistor, the gate driver circuit controls the low side transistor in a constant current mode. After the high side transistor is disabled, then the gate driver circuit controls the low side switching transistor to operate in full-enhancement mode. In both buck and boost operation, the gate driver circuit operates without dead time in which both the high side and low side transistors are off.
    Type: Grant
    Filed: July 1, 2017
    Date of Patent: September 29, 2020
    Assignee: Active-Semi, Inc.
    Inventors: Thinh Ba Nguyen, Thien Khanh Luong, Thuc Huu Lam, Hue Khac Trinh