Patents Assigned to PWI, Inc.
  • Universal input voltage device
    Patent number: 7994731
    Abstract: A universal input voltage device is presented which may receive a wide range of regulated and unregulated input voltages, both DC and a wide range of variable frequency AC, and output a desired regulated current at a desired voltage independent of the fluctuation of input voltage and frequency. The circuit includes a preconditioning input circuit, a Buck converter circuit with over voltage protection, flyback and boost circuits, and a shutdown circuit configured to drive a predetermined electrical or electronic device.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: August 9, 2011
    Assignee: PWI, Inc.
    Inventor: Nathan E. Biggs
  • Universal input voltage device
    Patent number: 7486030
    Abstract: A universal input voltage device is presented which may receive a wide range of regulated and unregulated input voltages, both DC and a wide range of variable frequency AC, and output a desired regulated current at a desired voltage independent of the fluctuation of input voltage and frequency. The circuit includes a preconditioning input circuit, a Buck converter circuit with over voltage protection, flyback and boost circuits, and a shutdown circuit configured to drive a predetermined electrical or electronic device.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: February 3, 2009
    Assignee: PWI, Inc.
    Inventor: Nathan E. Biggs
  • Light fixture
    Patent number: D662245
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: June 19, 2012
    Assignee: PWI, Inc.
    Inventor: William Steffy