Fluorescent lamp dimmer

Details Fluorescent lamp dimmer Fluorescent lamp dimmer

1988-12-06

1991-03-05

Laroche, Eugene R.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315219, 315291, 315DIG4, 315DIG5, 315DIG7, H05B 3702, H05B 4136, G05F 100

Patent

active

049980459

ABSTRACT:
A fluorescent lamp dimmer, for use with one or more fluorescent lamps where large ratios of luminous differences are required, which includes apparatus for powering the arc current for the fluorescent lamps from a source of pulsating voltage of variable pulse width and variable frequency both of which can be changed by relatively small amounts and still produce very large changes (15,000:1) in luminescence.

REFERENCES:
patent: 4346332 (1982-08-01), Walden
patent: 4370600 (1983-01-01), Zansky
patent: 4682080 (1987-07-01), Ogawa et al.
patent: 4704560 (1987-11-01), Mills et al.

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