Lamp-lighting device

Details Lamp-lighting device Lamp-lighting device

1988-04-12

1990-08-07

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315194, 315205, 315208, H05B 3908

Patent

active

049470876

ABSTRACT:
Disclosed is a novel lamp-lighting device, comprising a full-wave rectifier composed partially or entirely of thyristor(s), said full-wave rectifier having both an input terminal connected with an ac source and an output terminal connected with a lamp; a smoothing means connected in parallel with the lamp; means to detect a voltage across the lamp that exceeds a prescribed level; and means to control the conduction angle of the thyristor(s) dependently on the magnitude of the voltage, said controlling means being operable in association with said detecting means.

REFERENCES:
patent: 3299319 (1967-01-01), Nomura
patent: 4158792 (1979-06-01), Kuroi et al.
patent: 4170747 (1979-10-01), Holmes
patent: 4293796 (1981-10-01), McMorrow
patent: 4523131 (1985-06-01), Zansky
patent: 4563616 (1986-01-01), Stevens
patent: 4716511 (1987-12-01), Masaki
patent: 4777409 (1988-10-01), Tracy et al.

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