D. C. Powered control circuit for energizing a cold cathode lamp

Details D. C. Powered control circuit for energizing a cold cathode lamp D. C. Powered control circuit for energizing a cold cathode lamp

1977-12-12

1979-04-10

Smith, Alfred E.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Periodic switch in the primary circuit of the supply...

315209R, 315287, H05B 3702, H05B 4130

Patent

active

041491130

ABSTRACT:
A control circuit including digital circuitry and a voltage step up transformer is arranged to operate as an inverter to provide for energizing a cold cathode lamp under power provided by a d.c. source such as a battery. According to a significantly preferred feature, any one of a plurality of operating modes can be manually selected so that different illuminating effects can be provided as desired.

REFERENCES:
patent: 3882357 (1975-05-01), Nieuweboer et al.
patent: 4087722 (1978-05-01), Hancock

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