Patents by Inventor Philip Rodulfo

Philip Rodulfo 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).

  • Push-pull DC-DC converter with transformer having multiple primary and secondary windings with diodes connected between them with MOSFET switching
    Patent number: 5886882
    Abstract: A converter has an assembly with a transformer primary and secondary windings and two pairs of primary and secondary choke windings wound around a core. Switching circuits are coupled between the transformer primary winding and the two primary choke windings. Each switching circuit has a capacitor, diode and a MOSFET. The MOSFETs are switched on and off in a cyclical manner to provide a continuous output current from a continuous input current by operating in a push-pull manner.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: March 23, 1999
    Assignee: Advanced Power Conversion Ltd.
    Inventor: Philip Rodulfo
  • DC to DC transformer-based converter with push pull electronic switching
    Patent number: 5777858
    Abstract: A converter has an assembly with a transformer having primary and secondary windings and two pairs of primary and secondary choke windings wound around a core. Switching circuits are coupled between the transformer primary winding and the two primary choke windings. Each switching circuit comprises a capacitor, diode and a MOSFET. The MOSFETs are switched on and off in a cyclical manner to provide a continuous output current from a continuous input current by operating in a push-pull manner.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: July 7, 1998
    Assignee: Advanced Power Conversion Ltd.
    Inventor: Philip Rodulfo