Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch in the primary circuit of the supply...
Patent
1992-08-24
1994-08-30
Pascal, Robert J.
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Periodic switch in the primary circuit of the supply...
315 57, 315 62, 315212, 361674, 362221, 362216, H05B 3702
Patent
active
053431235
ABSTRACT:
A half-bridge inverter is powered from an ordinary electric utility power line by way of a full wave rectifier-filter means. The high frequency voltage output of the inverter is loaded with a series-combination of a tank inductor and a tank capacitor, with a fluorescent lamp being connected in parallel with the tank capacitor. The ON-time of each of the inverter's two transistors is shorter than half the period of the high frequency voltage; thereby preventing the two transistors from conducting simultaneously; thereby, in turn, protecting the inverter from self-destruction in case of lamp failure.
REFERENCES:
patent: 3448335 (1969-06-01), Gregory et al.
patent: 3706052 (1972-12-01), Canup
patent: 4093893 (1978-06-01), Anderson
patent: 4161021 (1979-07-01), George, Jr.
patent: 4184128 (1980-01-01), Nilssen
patent: 4244013 (1981-01-01), Wotowiec
patent: 4251752 (1981-02-01), Stolz
patent: 4279011 (1981-07-01), Nilssen
patent: 4311942 (1982-01-01), Skeist et al.
patent: 4353007 (1982-10-01), Moerkens et al.
patent: 4370600 (1983-01-01), Zansky
patent: 4496878 (1985-01-01), Nilssen
patent: 4677345 (1987-06-01), Nilssen
patent: 4857806 (1989-08-01), Nilssen
Dale et al. "Conversion of incandescent lamp sockets to fluorescent in the home market", Lighting & Design Application Mar. 1976 pp. 18-23.
Pascal Robert J.
Ratliff Reginald A.
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