Circuit for sustaining power supply output following momentary i

Details Circuit for sustaining power supply output following momentary i Circuit for sustaining power supply output following momentary i

1990-05-23

1992-05-05

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 46, 307109, 365229, H02J 906, G11C 1400

Patent

active

051110580

ABSTRACT:
Circuitry for extending the sustain time of a computer power supply in the event of interruption of commercial A.C. power includes a capacitor bank, an associated charge path for controllably charging the capacitor bank during stable operation of the commercial A.C. power source, and discharge and disconnect paths for discharging the energy stored in the capacitor bank to sustain operation of the computer during interruption of the commercial A.C. power source and for disconnecting the capacitor from the computer power supply when the voltage across the capacitor bank has discharged below a threshold level.

REFERENCES:
patent: 4316133 (1982-02-01), Locke, Jr.
patent: 4685120 (1987-08-01), Norris et al.
patent: 4795914 (1989-01-01), Higa et al.
patent: 4810936 (1989-03-01), Nuckolls et al.
patent: 4930036 (1990-05-01), Sitch
patent: 4956584 (1990-09-01), Sikora
patent: 4962354 (1990-10-01), Visser et al.

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