System for and method of lighting discharge lamp having failure

Details System for and method of lighting discharge lamp having failure System for and method of lighting discharge lamp having failure

1993-09-20

1995-08-15

Pascal, Robert J.

Electric lamp and discharge devices: systems

With signal, indicator, or alarm

315133, 340641, 340642, H01J 160

Patent

active

054422574

ABSTRACT:
A discharge lamp lighting device comprises a failure diagnostic circuit for diagnosing failure of a discharge lamp and a lighting circuit. The failure diagnostic circuit diagnoses failure of the discharge lamp and an external wiring from the lighting circuit to the discharge lamp, and diagnoses the lighting circuit if failure of the discharge lamp and the external wiring fails to be found.

REFERENCES:
patent: 3735378 (1973-05-01), McNamee
patent: 4035603 (1977-07-01), Fernicola
patent: 4713584 (1987-12-01), Jean
patent: 5034659 (1991-07-01), Taniguchi

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