Adjustable drive circuit for capacitive electroluminescent lamps

Details Adjustable drive circuit for capacitive electroluminescent lamps Adjustable drive circuit for capacitive electroluminescent lamps

1995-04-24

1997-04-22

Pascal, Robert

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315246, 368 68, 368 69, 368 67, G04B 1930, H05B 3700

Patent

active

056231857

ABSTRACT:
A drive circuit having a converter that provides current pulses that charge a capacitive electroluminescent (EL) lamp to produce light, a switching circuit that switches successive current pulses for progressively charging the EL lamp and an adjustable circuit that permits external control of the switching circuit to provide a plurality of different predetermined numbers of the current pulses to the EL lamp is disclosed.

REFERENCES:
patent: 4084401 (1978-04-01), Belardi et al.
patent: 4208869 (1980-06-01), Hanaoka
patent: 4527096 (1985-07-01), Kindlmann
patent: 4912688 (1990-03-01), Syfert
patent: 5172032 (1992-12-01), Alessio

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