Discharge lamp starter and starting and operating circuitry

Details Discharge lamp starter and starting and operating circuitry Discharge lamp starter and starting and operating circuitry

1982-07-19

1983-12-06

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Electric switch inside evacuated or gas filled envelope

315 47, 315290, H05B 4106

Patent

active

044196075

ABSTRACT:
Apparatus for starting and operating a discharge lamp includes a starter device having a normally-closed (N/C) switch including a pair of contacts each connected to a bimetal with the bimetals having opposite flexure deviations. Circuitry is provided for coupling one bimetal to a ballast and also to a discharge lamp whereby short-circuit current flows through both bimetals to open the switch and initiate conductivity of a discharge lamp and through one bimetal to maintain the switch operational and continue lamp conductivity.

REFERENCES:
patent: 3965387 (1976-06-01), Stuart et al.
patent: 4001634 (1977-01-01), Corbley et al.
patent: 4355265 (1982-10-01), Cohen et al.

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