Rush current prevention circuit

Details Rush current prevention circuit Rush current prevention circuit

1990-09-06

1992-08-18

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072961, 3072965, 3072723, 307350, H03K 500, G11C 1100

Patent

active

051401835

ABSTRACT:
A second circuit to which back-up power is supplied, such as a RAM, is connected downstream of a first circuit to which no back-up power is supplied, such as a CPU. A gate circuit inhibits the output signal of the first circuit to the second circuit and provides a predetermined level to the second circuit when the output signal of the first circuit is at an indefinite level and prevents a penetration current from flowing through the second circuit.

REFERENCES:
patent: 3155847 (1964-11-01), Kirchmier
patent: 4249089 (1981-02-01), Wolford et al.
patent: 4288865 (1981-09-01), Graham
patent: 4344003 (1982-10-01), Harmon et al.
patent: 4365316 (1982-12-01), Iwahashi et al.
patent: 4617473 (1986-10-01), Bingham
patent: 4647956 (1987-03-01), Shrivastava et al.
patent: 4698530 (1987-10-01), Thomson
patent: 4886983 (1989-12-01), Taka
patent: 4902910 (1990-02-01), Hsieh
patent: 4918331 (1990-04-01), Van Zanten et al.

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