Patents by Inventor John Arthur Lazar, Jr.

John Arthur Lazar, Jr. 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).

  • Dynamic depressed collector
    Patent number: 7888873
    Abstract: A biasing system for use with a multi-stage depressed collector of a high power amplifier includes one or more adjustable power sources. A power controller provides control signals to the power sources depending on the operational RF power level. For low power applications, biasing of collector electrodes is reduced such that savings in energy costs are realized, and operational temperature and wear are reduced. The control signals are based on values stored in a look-up table. For multiple depressed electrodes, biasing can be controlled in tandem or independently.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: February 15, 2011
    Assignee: Communications and Power Industries, Inc.
    Inventors: Michael J. Cascone, John Arthur Lazar, Jr., John Brinson Overstreet
  • Dynamic depressed collector
    Patent number: 7368874
    Abstract: A biasing system for use with a multi-stage depressed collector of a high power amplifier includes one or more adjustable power sources. A power controller provides control signals to the power sources depending on the operational RF power level. For low power applications, biasing of collector electrodes is reduced such that savings in energy costs are realized, and operational temperature and wear are reduced. The control signals are based on values stored in a look-up table. For multiple depressed electrodes, biasing can be controlled in tandem or independently.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: May 6, 2008
    Assignee: Communications and Power Industries, Inc., Satcom Division
    Inventors: Michael J. Cascone, John Arthur Lazar, Jr., John Brinson Overstreet