Patents by Inventor Robert B. Borden

Robert B. Borden 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).

  • Low drop-out voltage regulator with PMOS pass element
    Patent number: 5867015
    Abstract: A voltage regulator circuit includes: a first MOS transistor 12 coupled between a voltage supply line and an output node 44, the first MOS transistor 12 providing a stable voltage on the output node 44; a source follower 24 coupled to a gate of the first MOS transistor 12; an amplifier 38 coupled to a gate of the source follower 24 for controlling the response of the first MOS transistor 12; negative feedback circuitry coupled between the output node 44 and the amplifier 38, the feedback circuitry providing feedback to the amplifier 38; a current conveyer 46 coupled to the first MOS transistor 12; and positive feedback circuitry 26 coupled between the current conveyer 46 and the source follower 24.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: February 2, 1999
    Assignee: Texas Instruments Incorporated
    Inventors: Marco Corsi, Robert B. Borden, Michael R. Kay, Nicolas Salamina, Gabriel A. Rincon
  • Voltage regulator with output pull-down circuit
    Patent number: 5864227
    Abstract: A voltage regulator circuit includes: an output transistor MP.sub.X coupled between a voltage supply node V.sub.CC and an output node V.sub.OUT ; an amplifier A.sub.1 coupled to the output transistor MP.sub.X for controlling the response of the output transistor MP.sub.X ; feedback circuitry R.sub.1 and R.sub.2 connected between the output node V.sub.OUT and the amplifier A.sub.1, the feedback circuitry R.sub.1 and R.sub.2 providing feedback to the amplifier A.sub.1 ; and a pull-down circuit PD.sub.1 coupled to the output node V.sub.OUT.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: January 26, 1999
    Assignee: Texas Instruments Incorporated
    Inventors: Robert B. Borden, Mark Pulkin