DC to AC switching circuit for driving an electroluminescent lam

Details DC to AC switching circuit for driving an electroluminescent lam DC to AC switching circuit for driving an electroluminescent lam

1999-05-13

2000-06-27

Vu, David H.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315224, 315307, 315DIG7, H05B 3702

Patent

active

060810750

ABSTRACT:
A switching circuit is provided for converting a DC voltage to an AC voltage required for driving an electroluminescent lamp. The switching circuit charges and discharges the electroluminescent lamp with a substantially constant current to thereby reduce peak currents and extend lamp life. A constant current discharge feature of the switching circuit results in a significant reduction in current consumption.

REFERENCES:
patent: 4527096 (1985-07-01), Kindlmann
patent: 5463283 (1995-10-01), Sanderson
patent: 5686797 (1997-11-01), Sanderson

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