Patents by Inventor Mark Stephen Power

Mark Stephen Power 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).

  • Voltage boost circuit and low supply voltage sampling switch circuit using same
    Patent number: 6724239
    Abstract: A voltage boost circuit includes a boost capacitor; a charge circuit for charging in the charging mode the boost capacitor to a supply voltage, the charging circuit including a charging MOS switch interconnected between the supply voltage and one terminal of the boost capacitor and a back gate isolation circuit connected to the back gate of the charging MOS switch and including a first switch for connecting the back gate to the supply voltage for reverse biasing the back gate in the charging mode and the second switch for connecting the back gate to the one terminal of the boost capacitor for reverse biasing the back gate in the boost mode to prevent charge loss from the boost capacitor; and a boost bias voltage and a boost switch for connecting the second terminal of the boost capacitor to the boost bias voltage in the boost mode.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: April 20, 2004
    Assignee: Analog Devices, Inc.
    Inventors: Colin Price, Mark Stephen Power
  • Voltage boost circuit and low supply voltage sampling switch circuit using same
    Publication number: 20030020533
    Abstract: A voltage boost circuit includes a boost capacitor; a charge circuit for charging in the charging mode the boost capacitor to a supply voltage, the charging circuit including a charging MOS switch interconnected between the supply voltage and one terminal of the boost capacitor and a back gate isolation circuit connected to the back gate of the charging MOS switch and including a first switch for connecting the back gate to the supply voltage for reverse biasing the back gate in the charging mode and the second switch for connecting the back gate to the one terminal of the boost capacitor for reverse biasing the back gate in the boost mode to prevent charge loss from the boost capacitor; and a boost bias voltage and a boost switch for connecting the second terminal of the boost capacitor to the boost bias voltage in the boost mode.
    Type: Application
    Filed: May 28, 2002
    Publication date: January 30, 2003
    Inventors: Colin Price, Mark Stephen Power