Modified half-bridge parallel-loaded series resonant converter t

Details Modified half-bridge parallel-loaded series resonant converter t Modified half-bridge parallel-loaded series resonant converter t

1994-03-03

1995-06-13

Pascal, Robert J.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315219, 315307, 315291, 315DIG5, 315DIG7, H05B 3702

Patent

active

054246148

ABSTRACT:
An electronic ballast embodiment of the present invention comprises a half-bridge parallel-loaded series resonant converter (HB-PLSRC) circuit a load is connected across a resonating capacitor with DC blocking capacitors in each of two legs and in series with a resonating inductor. The combination is connected to the junction of two switches wired in series across a DC source input such that the resonant inductor and resonant capacitor are connected across one of the switches. A coordinated manipulation of the switches is then used to charge and discharge the resonant inductor and resonant capacitor are pumped in series resonance. Alternatively, the load is connected through an isolation transformer.

REFERENCES:
patent: 5130610 (1992-07-01), Kakitani
patent: 5331253 (1994-07-01), Counts
patent: 5332951 (1994-07-01), Turner et al.
patent: 5341068 (1994-08-01), Nerone

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