Patents by Inventor John O. Dunlea

John O. Dunlea 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).

  • Bi-directional switch using series connected N-type MOS devices in parallel with series connected P-type MOS devices
    Patent number: 8710541
    Abstract: A bi-directional switch circuit includes a pair of N-type MOS devices connected in series with a common source terminal, and a pair of P-type MOS devices connected in series with a common source terminal. The series connected N-type devices are connected in parallel with the series connected P-type devices in a configuration that includes a first input/output (I/O) point of the switch circuit being connected to a drain of a first one of the N-type devices and a drain of a first one of the P-type devices. The parallel configuration also includes a second I/O point of the switch circuit being connected to a drain of a second one of the N-type devices and a drain of a second one of the P-type devices.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: April 29, 2014
    Assignee: Analog Devices, Inc.
    Inventors: David Aherne, John O Dunlea
  • BI-DIRECTIONAL SWITCH USING SERIES CONNECTED N-TYPE MOS DEVICES IN PARALLEL WITH SERIES CONNECTED P-TYPE MOS DEVICES
    Publication number: 20130248923
    Abstract: A bi-directional switch circuit includes a pair of N-type MOS devices connected in series with a common source terminal, and a pair of P-type MOS devices connected in series with a common source terminal. The series connected N-type devices are connected in parallel with the series connected P-type devices in a configuration that includes a first input/output (I/O) point of the switch circuit being connected to a drain of a first one of the N-type devices and a drain of a first one of the P-type devices. The parallel configuration also includes a second I/O point of the switch circuit being connected to a drain of a second one of the N-type devices and a drain of a second one of the P-type devices.
    Type: Application
    Filed: August 23, 2012
    Publication date: September 26, 2013
    Applicant: ANALOG DEVICES, INC.
    Inventors: David Aherne, John O. Dunlea