Electroluminescent lamp driver

Details Electroluminescent lamp driver Electroluminescent lamp driver

1982-09-13

1984-05-15

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315246, 315290, 340781, H05B 3308

Patent

active

044490755

ABSTRACT:
An electroluminescent lamp driver circuit is disclosed, which includes a timer circuit acting as a retriggerable astable multivibrator interfacing with transistor-transistor logic (TTL) circuitry. The timer circuit sets the operating frequency of the entire lamp driver circuit while the TTL circuitry includes a transistor for controlling the operating voltage of the TTL circuit and two additional transistors for providing the switching for periodically exciting the phosphor in the lamp to luminesce.

REFERENCES:
patent: 3629653 (1971-12-01), Irwin
patent: 4070663 (1978-01-01), Kanatani et al.
patent: 4238793 (1980-12-01), Hochstrate
patent: 4253097 (1981-02-01), Hochstrate

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