H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/62
H05B 41/26 (2006.01) H05B 41/16 (2006.01) H05B 41/36 (2006.01)
Patent
CA 1199363
STARTING AND OPERATING CIRCUIT FOR GASEOUS DISCHARGE LAMPS ABSTRACT OF THE DISCLOSURE Starting and operating circuit for gaseous dis- charge lamps having device for quickly restarting ex- tinguished lamps while still hot includes means for reducing power supply voltage overshoot upon turn-on of the system. Circuit comprises a source of alter- nating current, an inductive regulator ballast having its input connected to the alternating current source, and a gaseous discharge lamp connected to the output of the ballast, a sine wave oscillator circuit having its input connected to the current supply and having its output connected to a transformer connected in series between the ballast and the lamp for stepping up and applying voltage to the lamp a rectifier con- nected between the alternating current source and the oscillator circuit, the overshoot reducing means com- prising a resistor connected between the rectifier and the oscillator circuit and a controlled switch for se- lectively connecting and disconnecting the resistor in the circuit.
418294
Morais Don
Owen Daniel V.
Company General Electric
Eckersley Raymond A.
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