Protected discharge lamp lighting system

Details Protected discharge lamp lighting system Protected discharge lamp lighting system

1988-12-20

1990-05-22

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With automatic shunt and/or cutout

Supply circuit current and/or potential actuated switch

315225, 315DIG5, H05B 3702, H05B 4116

Patent

active

049280376

ABSTRACT:
A discharge lamp lighting system including at least one switch device connected between a d.c. power supply and a discharge lamp which is turned on by a high frequency power generated through turning-on and -off of the switching device. In the discharge lighting system, the discharge lamp lighting operation is allowed to start when the d.c. power supply voltage reaches a predetermined voltage value A or over, and the discharge lamp lighting operation is stopped when the d.c. power supply voltage lowers smaller than a predetermined voltage value B, where the values A and B take a relation that B is smaller than A.

REFERENCES:
patent: 4554487 (1985-11-01), Nilssen

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