Patents by Inventor Hsien-Te Kevin Shih

Hsien-Te Kevin Shih 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).

  • Method of forming a transistor driver and structure therefor
    Patent number: 6982574
    Abstract: In one embodiment, a power supply system has a transistor driver that receives a PWM signal and generates signals to drive output transistors of the power supply system in response to the PWM signal. If the PWM signal is low for a certain length of time, the transistor driver disables t least one of the output transistors.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: January 3, 2006
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Paul J. Harriman, Hsien-Te Kevin Shih
  • Method and circuit for optimizing power efficiency in a DC-DC converter
    Patent number: 6933706
    Abstract: In one embodiment, a turn-on delay control structure (30) includes a sense FET device (31) that is coupled to a switch node (13) in a synchronous DC-DC converter (10). The DC-DC converter includes a high-side switch (11) and a low-side switch (12). The sense FET device (31) senses current conduction in a body diode (18) of the low-side switch (12). A current sensing/comparator circuit (32) coupled to the sense FET (31) detects changes in current conduction. A delay circuit (33) and a clock/logic circuit (32) coupled to the current sensing/comparator circuit (32) predict and adjust delay time in switching between the high-side switch (11) and the low-side switch (12).
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: August 23, 2005
    Assignee: Semiconductor Components Industries, LLC
    Inventor: Hsien-Te Kevin Shih