Patents by Inventor Mark A. Streeter

Mark A. Streeter 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).

  • Patent number: 5717557
    Abstract: A low side line driver (10) includes a slew rate limiter (12) providing current to a pre-charge reference circuit (16). The pre-charge reference circuit (16) generates a constant voltage at the input of a pre-drive circuit (18). Upon a transition to the active state, the pre-charge reference circuit (16) is disabled and current from the slew rate limiter (12) flows to pre-drive circuit (18) which becomes enabled without undue propagation delay or high instantaneous slew rate due to the pre-charge voltage generated by the pre-charge reference circuit (16) before turn on. The pre-drive circuit (18) provides base current to an output driver (22) from a negative voltage created in a charge pump (28). At turn off, an active turn off circuit (26) produces a short output pulse causing rapid discharge of base capacitance of the output driver (22) in order to minimize turn off propagation delay.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: February 10, 1998
    Assignee: Texas Instruments Incorporated
    Inventors: David M. Gonzalez, Mark A. Streeter, Stephen R. Tomassetti, Roger J. Cook, Christopher J. Kemp