Electric lamp and discharge devices: systems – Condenser in the supply circuit – Arc machining
Patent
1985-08-26
1989-02-28
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Condenser in the supply circuit
Arc machining
315240, 315244, 363 59, 363 63, H05B 3700, H05B 3900, H05B 4114
Patent
active
048088862
ABSTRACT:
Ballast and starting circuits for controlling current and voltage applied to an electrical dishcarge lamp. The ballast circuits use positive and negative capacitors which are alternately charged and discharged in an asychronous manner. The positively charged capacitors are charged during positive portions of alternating current and discharged during negative portions of the alternating current. The negatively charged capacitors are charged during negative portions of the alternating current and discharged during positive portions. Transistors or other appropriate switching means are used to switch the capacitors to the lamp during discharge thereof. Startup circuits are included for boosting the voltage applied to the lamp either manually or automatically upon startup. A startup regulator circuit is also shown for controlling current flow during periods of high current demand such as during startup.
REFERENCES:
patent: 3443154 (1969-05-01), Hoekstra et al.
patent: 3579026 (1971-05-01), Paget
patent: 3643127 (1972-02-01), Laupman
patent: 3968400 (1976-07-01), Weinreich
patent: 4132925 (1979-01-01), Schmutzer et al.
patent: 4134043 (1979-01-01), Nuver
patent: 4167689 (1979-09-01), Quirke
patent: 4219872 (1980-08-01), Engelmann
patent: 4230971 (1980-10-01), Gerhard et al.
patent: 4260932 (1981-04-01), Johnson
patent: 4289993 (1981-09-01), Harper et al.
patent: 4337417 (1982-06-01), Johnson
patent: 4340843 (1982-07-01), Anderson
patent: 4366570 (1982-12-01), Bees
patent: 4406976 (1983-09-01), Wisbey et al.
patent: 4555647 (1985-11-01), Leskovec et al.
Gullixson Bruce B.
Lathom Michael S.
Sweat Bruce P.
Chatmon Saxfield
Razavi Michael
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