Patents by Inventor Don Kang

Don Kang 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).

  • Universal high efficiency power converter
    Patent number: 6538909
    Abstract: A universal power converter for generating a regulated voltage, current or power with a large input voltage range. The power converter has a voltage boost function configured to boost the rectified input voltage and provide power factor correction. The power converter also includes a voltage chop function to chop the boosted voltage to form an AC voltage. The power converter further includes at least one relay in electrical communication with the AC voltage and a transformer. The primary winding has at least two inputs operative to selectively vary the voltage generated on a secondary winding thereof selected by the relay. Accordingly, the power converter can generate different voltages at the output based upon the position of the relay and the boosted voltage. The power converter provides maximum power operation at a wide output voltage range, maximizing the charging energy.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: March 25, 2003
    Assignee: Enova Systems
    Inventors: Abas Goodarzi, Don Kang
  • Universal high efficiency power converter
    Publication number: 20020044468
    Abstract: A universal power converter for generating a regulated voltage, current or power with a large input voltage range. The power converter has a voltage boost function configured to boost the rectified input voltage and provide power factor correction. The power converter also includes a voltage chop function to chop the boosted voltage to form an AC voltage. The power converter further includes at least one relay in electrical communication with the AC voltage and a transformer. The primary winding has at least two inputs operative to selectively vary the voltage generated on a secondary winding thereof selected by the relay. Accordingly, the power converter can generate different voltages at the output based upon the position of the relay and the boosted voltage. The power converter provides maximum power operation at a wide output voltage range, maximizing the charging energy.
    Type: Application
    Filed: December 13, 2001
    Publication date: April 18, 2002
    Inventors: Abas Goodarzi, Don Kang
  • Sprayer tank
    Patent number: D609773
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: February 9, 2010
    Assignee: The Fountainhead Group, Inc.
    Inventors: Todd Abernethy, Don Kang