Patents by Inventor Toby Kan

Toby Kan 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).

  • PWM regulator with discontinuous mode and method therefor
    Patent number: 7298124
    Abstract: In one embodiment, a power supply controller has a variable frequency oscillator that is used for controlling a PWM controller. The power supply controller varies a frequency of the variable frequency oscillator.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: November 20, 2007
    Assignee: Semiconductor Components Industries, L.L.C.
    Inventors: Kwok Kei Toby Kan, Tak Ming Leung
  • Circuit and method of operating a low-noise, on-demand regulator in switched or linear mode
    Patent number: 6452368
    Abstract: A dual mode voltage converter (18) is provided which is capable of performing linear or switched modes of operation based on an external mode select signal presented to terminal (MODE). Pulse width modulation techniques are used to regulate voltage delivered to output terminal (Vout) when a mode control signal is present at terminal (MODE) and linear conversion techniques are used in the absence of the mode control signal. Stability of voltage converter (18) is enhanced during linear conversion mode by shorting switch (60) and BW rolloff circuit (44). An alternate embodiment of dual mode voltage converter (18) provides operation based on an internal mode select signal.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: September 17, 2002
    Assignee: Semiconductor Components Industries LLC
    Inventors: Christophe Basso, Toby Kan