Patents by Inventor Christopher Gass

Christopher Gass 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).

  • Switched mode power supply controller circuit and method thereof
    Patent number: 6285569
    Abstract: A switching power supply (96) receives an AC voltage and converts it to a regulated DC voltage. The switching power supply (96) includes a Vcc limiter (16) to limit the operating voltage at the power supply terminal (10) of a integrated regulator circuit (118). The Vcc limiter (16) limits the operating voltage at the power supply terminal (10). When operating voltage at power supply terminal (10) increases, a differential pair of transistors (22, 24) supply a differential current to a current mirror configuration of transistors (26, 30) to supply voltage to a drive transistor (36) to increase current in the drive transistor (36) to a value based on n times the current in a reference transistor (26). An increase in current through the drive transistor (36) counteracts increased operating voltage at the power supply terminal (10), thereby reducing the operating voltage level back to a desired level.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: September 4, 2001
    Assignee: Semiconductor Components Industries LLC
    Inventors: Jefferson W. Hall, W. David Pace, Christopher Gass