Back-up electrical power supplies

Details Back-up electrical power supplies Back-up electrical power supplies

1981-08-04

1983-04-26

Gellner, Michael L.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 64, 307150, H02J 902

Patent

active

043814581

ABSTRACT:
A back-up electrical power supply module provides a back-up supply for a plug-in volatile electrical device such as a memory module. The memory module has a dual-in-line pins which engage socket openings of a standard dual-in-line circuit board connector. The back-up supply module is mounted on top of the memory module and has dual-in-line pins which contact corresponding ones of the pins of the memory module and corresponding socket openings. In this way the back-up supply module and the memory module can be unplugged as a unit and when unplugged, the back-up supply will maintain the contents of the volatile memory module intact.

REFERENCES:
patent: 3816768 (1974-06-01), Stein
patent: 3823388 (1974-07-01), Chadima et al.
patent: 4019174 (1977-04-01), Vanderpool et al.
patent: 4051945 (1977-10-01), Fujimoto et al.
patent: 4086523 (1978-04-01), Izumi
patent: 4122359 (1978-10-01), Breikss
patent: 4143417 (1979-03-01), Wald et al.
patent: 4229686 (1980-08-01), Mullersman et al.
IBM Technical Disclosure Bulletin, vol. 5, No. 11, Apr. 1973, pp. 3408-3409.
Modern Electronic, Sweden 12/80 G 11 C7/00 pp. 35 to 38.
IBM Technical Disclosure Bulletin, vol. 15, No. 9, Feb. 1973, p. 2830.

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