Patents Represented by Attorney Skjerven, Morrill, MacPerson, Franklin & Friel LLP

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  • Programmable synchronous step down DC-DC converter controller
    Patent number: 5943227
    Abstract: An monolithic programmable dc--dc converter controller integrated circuit with a high speed synchronous controller and a 4-bit programmable DAC to provide an operating voltage to an external device such as a microprocessor in response to a code programmed in the external device. The 4-bit programmable DAC outputs a signal which is combined with a precise reference voltage to provide voltages to the external device in increments of 100 millivolts.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: August 24, 1999
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Stephen W. Bryson, Tony Wong, Brian C. Lombard