Patents by Inventor Richard Ralph Garcia

Richard Ralph Garcia 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).

  • Waveform current monitor using RDSon of low-side bridge FET
    Patent number: 7948194
    Abstract: An apparatus for monitoring current for a motor drive including at least high-side and low-side switching transistors includes a driver circuit for driving a gate of the low-side switching transistor. First circuitry measures a drain to source voltage across the low-side switching transistor and generates a voltage output responsive thereto. Second circuitry has a first state of operation that samples the voltage output of the first circuitry when the low-side switching transistor is turned on and has a second state of operation to sample the voltage output of the first circuitry when the low-side switching transistor is turned off. The second circuitry further generates a monitored output current responsive to the sampled voltage output.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: May 24, 2011
    Assignee: Intersil Americas Inc.
    Inventor: Richard Ralph Garcia
  • WAVEFORM CURRENT MONITOR USING RDSON OF LOW-SIDE BRIDGE FET
    Publication number: 20090206785
    Abstract: An apparatus for monitoring current for a motor drive including at least high-side and low-side switching transistors includes a driver circuit for driving a gate of the low-side switching transistor. First circuitry measures a drain to source voltage across the low-side switching transistor and generates a voltage output responsive thereto. Second circuitry has a first state of operation that samples the voltage output of the first circuitry when the low-side switching transistor is turned on and has a second state of operation to sample the voltage output of the first circuitry when the low-side switching transistor is turned off. The second circuitry further generates a monitored output current responsive to the sampled voltage output.
    Type: Application
    Filed: October 9, 2008
    Publication date: August 20, 2009
    Applicant: INTERSIL AMERICAS INC.
    Inventor: RICHARD RALPH GARCIA