Patents by Inventor Khanh Q. Dinh

Khanh Q. Dinh 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).

  • Programmable voltage setting with open and short circuit protection
    Patent number: 9946279
    Abstract: An integrated circuit includes a voltage set input terminal, a current source, a voltage clipping circuit, and a voltage regulator. The clipping circuit receives a voltage from the terminal and supplies a voltage onto a reference voltage input of the regulator. The magnitude of an output voltage VOUT output by the regulator is the voltage on reference voltage input multiplied by the voltage gain of the regulator. The user sets VOUT by attaching an external resistor to the terminal. Current from the current source flows out of the terminal, and through the external resistor, thereby setting the voltage on the terminal. If the voltage on the terminal is between V1 and V2, then VOUT is a fixed multiple of the voltage. If the voltage is less than V1, then VOUT is a predetermined VOUTMIN value. If the voltage is greater than V2, then VOUT is a predetermined VOUTMAX value.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: April 17, 2018
    Assignee: Active-Semi, Inc.
    Inventors: Khanh Q. Dinh, Tung V. Nguyen, Hiroshi Watanabe