Redundant power bus arrangement for electronic circuits

Details Redundant power bus arrangement for electronic circuits Redundant power bus arrangement for electronic circuits

1989-10-04

1991-06-25

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural load circuit systems

Control of current or power

307 19, 307 31, 307 39, 307219, 3072968, 307568, 323278, H02J 110, H02J 114, G05F 1577

Patent

active

050270028

ABSTRACT:
A redundant power bus arrangement for electronic circuits controls the application of voltage from a power source to an active circuit card and a standby circuit card. Current limited switches are used to connect the power source to the active or standby circuits. A switch control circuit controls the conductive state of the current limited switches in response to a control signal generated by at least one of the controlled circuits. The maximum current permitted by each of the current limited switches is less than the maximum output current rating of the power source, thereby preventing a short on a power bus within one of the controlled circuits from affecting the voltage available for the other controlled circuit.

REFERENCES:
patent: 4085334 (1978-04-01), Shinohara et al.
patent: 4156200 (1979-05-01), Gomez
patent: 4227098 (1980-10-01), Brown et al.
patent: 4404473 (1983-09-01), Fox
patent: 4724374 (1988-02-01), Beg

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