Patents by Inventor Glenroy Devonish

Glenroy Devonish 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).

  • Device and method for rapid voltage ramp-up to regulator target voltage
    Patent number: 7898234
    Abstract: A voltage regulator includes a regulator output and an output capacitor and a variable-conductivity device in series connection between the regulator output and a voltage reference. The variable-conductivity device is configured to have an initial conductivity. A current then is provided at the regulator output in response to a power-on event. A conductivity of the variable-conductivity device is gradually increased from the initial conductivity in response to the current at the regulator output. In another implementation, a voltage regulator includes a regulator output coupled to a voltage rail to provide a current. The voltage regulator includes a capacitive circuit including an output capacitor and a variable-conductivity device coupled in series between the regulator output and a voltage reference. The voltage regulator includes an adjustment circuit configured to gradually increase a conductivity of the variable-conductivity device in response to an application of the current at the regulator output.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: March 1, 2011
    Assignee: Dell Products, LP
    Inventors: Steven J. Lash, Glenroy A. Devonish
  • Draining residual charge from a voltage plane
    Patent number: 7120805
    Abstract: An energy discharge resistance is isolated from storage capacitance containing a voltage charge until power is removed from the storage capacitance. Then the discharge resistance may be coupled to the storage capacitance to drain residual charge therefrom. The discharge resistance is coupled to the storage capacitance when external power is removed and is un-coupled from the storage capacitance when external power is applied to the storage capacitance. In this way, unnecessary power draw during operation or standby of an electronic system is substantially eliminated.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: October 10, 2006
    Assignee: Dell Products L.P.
    Inventors: Joshua N. Alperin, Glenroy Devonish, Ajay Kwatra, Todd W. Schlottman
  • Draining residual power from a voltage plane
    Publication number: 20040205363
    Abstract: An energy discharge resistance is isolated from storage capacitance containing a voltage charge until power is removed from the storage capacitance. Then the discharge resistance may be coupled to the storage capacitance to drain residual charge therefrom. The discharge resistance is coupled to the storage capacitance when external power is removed and is un-coupled from the storage capacitance when external power is applied to the storage capacitance. In this way, unnecessary power draw during operation or standby of an electronic system is substantially eliminated.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 14, 2004
    Applicant: Dell Products L.P.
    Inventors: Joshua N. Alperin, Glenroy Devonish, Ajay Kwatra, Todd W. Schlottman