Electric lamp and discharge devices: systems – Condenser in the supply circuit – Electric switch in the condenser circuit
Patent
1982-05-18
1984-05-08
LaRocke, Eugene R.
Electric lamp and discharge devices: systems
Condenser in the supply circuit
Electric switch in the condenser circuit
315227R, 315291, 315311, 315DIG4, 323209, 363 62, H05B 3904
Patent
active
044477651
ABSTRACT:
A power supply providing power to a low voltage lamp utilizing a main capacitor connected electrically in series with the lamp, across an alternating current source, and an auxiliary capacitor connected electrically across the main capacitor by a switching device during selected portions of the source waveform cycle. The minimum lamp current is established by the main capacitor, with additional lamp current flowing through the auxiliary capacitor during portions of the source waveform cycle when the auxiliary capacitor is electrically connected across the main capacitor. The load current is adjusted over a desired range established by the magnitude of the main and auxiliary capacitors.
REFERENCES:
patent: 2654042 (1953-09-01), Clarke et al.
patent: 3274484 (1966-09-01), Gebhardt et al.
patent: 3780347 (1973-12-01), Riesland
patent: 3921032 (1975-11-01), Hallay
patent: 4060752 (1977-11-01), Walker
patent: 4185231 (1980-01-01), Colliton
patent: 4185233 (1980-01-01), Riesland et al.
SCR Manual Including Triacs and Other Thyristors, (6th Ed.), General Electric Company (1979), pp. 231-232.
General Electric Company
Jacob Fred
LaRocke Eugene R.
McMahon John P.
Schlamp Philip L.
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