Pulse width modulated push-pull driven parallel resonant converter with active free-wheel

Patent · Tue Jun 22 04:00:00 EDT 2004

OSTI ID:1174913

Reass, William A.; Schrank, Louis

An apparatus and method for high frequency alternating power generation to control kilowatts of supplied power in microseconds. The present invention includes a means for energy storage, push-pull switching means, control electronics, transformer means, resonant circuitry and means for excess energy recovery, all in electrical communication. A push-pull circuit works synchronously with a force commutated free-wheel transistor to provide current pulses to a transformer. A change in the conduction angle of the push-pull circuit changes the amount of energy coupled into the transformer's secondary oscillating circuit, thereby altering the induced secondary resonating voltage. At the end of each pulse, the force commutated free-wheel transistor causes residual excess energy in the primary circuit to be transmitted back to the storage capacitor for later use.

• Research Organization: The Regents of the University of California, Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-36
• Assignee: University Of California, The Regents Of
• Patent Number(s): 6,754,091
• Application Number: 10/198,564
• OSTI ID: 1174913
• Country of Publication: United States
• Language: English

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