Electronic reactor for the supply of discharge lamps with an osc

Details Electronic reactor for the supply of discharge lamps with an osc Electronic reactor for the supply of discharge lamps with an osc

1995-02-08

1996-01-16

Lee, Benny

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315247, 315244, 315232, H05B 3702

Patent

active

054850606

ABSTRACT:
The electronic reactor for discharge lamps (L) comprises a bridge rectifier (5) connected to an alternating voltage source (3); a half-bridge with two controlled switching means (11, 13) made alternately conducting to connect the said lamp (L) and the said bridge rectifier (5); a resonant load circuit (17) connected to the said half-bridge (11, 13); and a smoothing capacitor (29) connected in parallel with the half-bridge (11, 13). An auxiliary resonant circuit (33) is provided to reduce the crest factor and correct the power factor between the output (19) of the half-bridge (11, 13) and the positive pole (5A) of the bridge rectifier (5).

REFERENCES:
patent: 4939429 (1990-08-01), Rodriguez-Cavazos et al.
patent: 4985664 (1991-01-01), Nilssen
patent: 5001400 (1991-03-01), Nilssen
patent: 5172309 (1992-12-01), De Doncker et al.

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