Electric power conversion systems – Current conversion – Including automatic or integral protection means
Patent
1986-09-17
1988-03-01
Salce, Patrick R.
Electric power conversion systems
Current conversion
Including automatic or integral protection means
363 89, 307 46, 307 66, H02H 7125
Patent
active
047290838
ABSTRACT:
A d.c. power supply for computer logic circuits which is sensitive to brief interruptions in a.c. source power. The power supply includes an input transformer providing first and second a.c. voltages which are rectified to first and second d.c. voltage, the second d.c. voltage being of greater magnitude than the first d.c. voltage. A linear voltage regulator receives the first d.c. voltage as normal input and provides a third d.c. voltage of lesser magnitude than the first d.c. voltage. A storage capacitor is charged by the second d.c. voltage. A differential amplifier detects an interruption in source power and causes the storage capacitor to be connected to the input of the regulator whereby the regulator output is maintained during a brief interruption in source power by the discharge current of the storage capacitor.
REFERENCES:
patent: 3609386 (1971-09-01), Patlach
patent: 3819980 (1974-06-01), Mullersman
patent: 4238690 (1980-12-01), Clarke
patent: 4323960 (1982-04-01), Jones
patent: 4327298 (1982-04-01), Burgin
patent: 4354118 (1982-10-01), Spencer
patent: 4471423 (1984-09-01), Hase
Allied-Signal Inc.
Lamb B. L.
Peckman Kristine L.
Salce Patrick R.
Trepp R. M.
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