Patents by Inventor Andrew David Prosory

Andrew David Prosory 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).

  • Hold-up capacitance health measurement with current leakage detection
    Patent number: 11506696
    Abstract: Circuits for measuring a leakage current of one or more capacitors coupled to a power supply line that powers an apparatus, such as a storage device, are disclosed. In one embodiment, the circuit includes first and second resistors between the power supply line, and first and second respective switches to ground. A controller may charge the voltage line to a first voltage. Thereafter, the controller discharges the first voltage to a second voltage via the first resistor during a first identified time. After recharging the voltage line, the controller then discharge the first voltage to the second voltage via at least the second resistor during a second identified time. The controller determines the parasitic resistance using the first and second identified times, and then the leakage current from the parasitic resistance.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: November 22, 2022
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Richard S. Lucky, Brian Hadley Robinson, Andrew David Prosory
  • Hold-Up Capacitance Health Measurement With Current Leakage Detection
    Publication number: 20220122631
    Abstract: Circuits for measuring a leakage current of one or more capacitors coupled to a power supply line that powers an apparatus, such as a storage device, are disclosed. In one embodiment, the circuit includes first and second resistors between the power supply line, and first and second respective switches to ground. A controller may charge the voltage line to a first voltage. Thereafter, the controller discharges the first voltage to a second voltage via the first resistor during a first identified time. After recharging the voltage line, the controller then discharge the first voltage to the second voltage via at least the second resistor during a second identified time. The controller determines the parasitic resistance using the first and second identified times, and then the leakage current from the parasitic resistance.
    Type: Application
    Filed: February 19, 2021
    Publication date: April 21, 2022
    Inventors: Richard S. Lucky, Brian Hadley Robinson, Andrew David Prosory