Power supply circuit with backup function

Details Power supply circuit with backup function Power supply circuit with backup function

1987-12-18

1989-01-03

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 72, 307 85, H02J 700

Patent

active

047959142

ABSTRACT:
A power supply circuit includes a series circuit, made up of a current feeding element and a charge storage element, which is coupled in parallel to the output of a power supply source. The power supply circuit also includes a first diode, connected to one terminal of the current feeding element, for feeding a first current from the power supply source to a load, and a second diode, connected to the other terminal of the current feeding element, for feeding a second current from the charge storage element to the load. The charge storage element can be fully charged-up with the voltage coming directly from the power supply source.

REFERENCES:
patent: 3262018 (1966-07-01), Bogaerts et al.
patent: 3609386 (1971-09-01), Patlach
patent: 3784841 (1974-01-01), Hosaka
patent: 4658151 (1987-04-01), Wyser et al.
patent: 4670661 (1987-06-01), Ishikawa
"Practical Electronic Circuit Handbook", Edited by Transistor Technique Staff, CQ Publication Co., Ltd. (literal translation); Issued on Oct. 20, 1975, p. 135.

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