Solid state starter apparatus for a discharge lamp

Details Solid state starter apparatus for a discharge lamp Solid state starter apparatus for a discharge lamp

1975-01-07

1976-08-31

Grimm, Siegfried H.

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Plural cathodes or heaters in the load device

315101, 315106, 315205, 315DIG7, H05B 4118

Patent

active

039783693

ABSTRACT:
A solid state starter apparatus for a discharge lamp comprises a current limiter, an AC power supply, a discharge lamp of filament-preheating type and a switching circuit for controlling the turning on and off of the discharge lamp. The switching circuit further includes a lightedstate detector circuit for detecting the turning on or off of the discharge lamp, a current breaker circuit controlled by the lighted-state detector circuit to cause the filament current to be turned on and off, and a preheater circuit for starting to supply a filament preheating current in accordance with the magnitude of the current controlled by the current breaker circuit.

REFERENCES:
patent: 3705329 (1972-12-01), Vogeli
patent: 3857060 (1974-12-01), Chermin
patent: 3875459 (1975-04-01), Remery et al.

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