Automatic back-up circuit

Details Automatic back-up circuit Automatic back-up circuit

1981-06-01

1983-09-06

Fears, Terrell W.

Static information storage and retrieval

Powering

Data preservation

365228, G11C 1140

Patent

active

044033095

ABSTRACT:
An automatic back-up circuitry for use with a memory circuit or the like including a switch transistor adapted to turn on in response to the application of an operative current and conduct it to the memory circuit, said transistor being also adapted to turn off when the application of the main operative current to said transistor is release, whereupon the back-up voltage is applied to the path between the transistor and the memory circuit.

REFERENCES:
patent: 3980935 (1976-09-01), Worst
patent: 4051945 (1977-10-01), Fujimoto et al.
patent: 4315162 (1982-02-01), Ferguson

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