Fluorescent lamp system

Details Fluorescent lamp system Fluorescent lamp system

1988-04-04

1989-09-12

Mis, David

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315226, 315307, 315309, H04B 4136

Patent

active

048663506

ABSTRACT:
Power is provided to a fluorescent lamp through a single integrated circuit (IC) chip. The IC chip contains control logic and power switches. The control logic operates the switches at a frequency which is optimum for the fluorescent lamp. The control logic includes circuits for thermal shut down, load status detection and voltage compensation.

REFERENCES:
patent: 4170746 (1979-10-01), Davenport
patent: 4220895 (1980-09-01), Nuver
patent: 4306177 (1981-12-01), Kaneda
patent: 4544862 (1985-10-01), Yamazaki et al.

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