Patents by Inventor Richard Daniel Cabbab Caubang

Richard Daniel Cabbab Caubang 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).

  • Method and apparatus for reducing body diode conduction of synchronous rectifiers
    Patent number: 7499299
    Abstract: A circuit for controlling the operation of synchronous rectifiers. The circuit delays the turn-off of the synchronous rectifiers in accordance with the load current. The magnitude of the load current is examined to determine which of a plurality of delay elements is selected to delay turn-off of the synchronous rectifiers. Delay is accomplished by holding up for a predetermined time period one of a plurality of control signals utilized to determine when the synchronous rectifier should be turned-off.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: March 3, 2009
    Assignee: Astec International Limited
    Inventors: Vijay Phadke, Arlaindo Vitug Asuncion, Richard Daniel Cabbab Caubang
  • Method and apparatus for reducing body diode conduction of synchronous rectifiers
    Patent number: 7262980
    Abstract: A circuit for controlling the operation of synchronous rectifiers. The circuit delays the turn-off of the synchronous rectifiers in accordance with the load current. The magnitude of the load current is examined to determine which of a plurality of delay elements is selected to delay turn-off of the synchronous rectifiers. Delay is accomplished by holding up for a predetermined time period one of a plurality of control signals utilized to determine when the synchronous rectifier should be turned-off.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: August 28, 2007
    Assignee: Astec International Limited
    Inventors: Vijay Gangadhar Phadke, Arlaindo Vitug Asuncion, Richard Daniel Cabbab Caubang