Patents by Inventor Steven A. Lei

Steven A. Lei 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).

  • Current-protected driver circuit for ignition exciter unit
    Patent number: 8027142
    Abstract: Methods and apparatus are provided for driving an ignition exciter unit. An apparatus is provided for a driver circuit for use with an ignition exciter unit, the driver circuit having an input terminal and an output terminal. A first current-protected circuit is coupled to the input terminal and the output terminal, wherein the first current-protected circuit is current-limited. A second current-protected circuit coupled to the input terminal and the output terminal. The driver circuit further comprises a controller coupled to the first current-protected circuit and the second current-protected circuit. The controller is configured to activate the first current-protected circuit for a first time interval and activate the second current-protected circuit after the first time interval and prior to when the ignition exciter unit begins operating.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: September 27, 2011
    Assignee: Honeywell International Inc.
    Inventors: Larry L. Galey, Dale A. Trumbo, Steven A. Lei
  • CURRENT-PROTECTED DRIVER CIRCUIT FOR IGNITION EXCITER UNIT
    Publication number: 20090107149
    Abstract: Methods and apparatus are provided for driving an ignition exciter unit. An apparatus is provided for a driver circuit for use with an ignition exciter unit, the driver circuit having an input terminal and an output terminal. A first current-protected circuit is coupled to the input terminal and the output terminal, wherein the first current-protected circuit is current-limited. A second current-protected circuit coupled to the input terminal and the output terminal. The driver circuit further comprises a controller coupled to the first current-protected circuit and the second current-protected circuit. The controller is configured to activate the first current-protected circuit for a first time interval and activate the second current-protected circuit after the first time interval and prior to when the ignition exciter unit begins operating.
    Type: Application
    Filed: June 3, 2008
    Publication date: April 30, 2009
    Applicant: Honeywell International Inc.
    Inventors: Larry L. Galey, Dale A. Trumbo, Steven A. Lei