Power supply system which shares current from a single redundant

Details Power supply system which shares current from a single redundant Power supply system which shares current from a single redundant

1987-07-17

1988-03-01

Salce, Patrick R.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 71, 307 53, 307 58, 307 64, H02J 346

Patent

active

047290862

ABSTRACT:
A power supply system includes a plurality of dedicated power supplies, each of which has a separate output terminal for furnishing output current to just one respective load. Each dedicated power supply has a switch for turning the supply on and off independent of the remaining dedicated supplies. A single redundant power supply is also included which turns on when every dedicated supply is on. And, a control circuit is included which shares output current from the redundant supply, when it is on, with the loads of only a subset of the dedicated supplies, such that the total shared output current from the redundant supply and the respective output current from each dedicated supply in the subset are all substantially equal. This subset consists of any dedicated supply which fails, and those dedicated supplies whose output current to their load when the redundant supply is off exceeds the equalized current.

REFERENCES:
patent: 4035716 (1977-07-01), Hutchinson
patent: 4270165 (1981-05-01), Carpenter et al.
patent: 4476399 (1984-10-01), Yoshida et al.
patent: 4528458 (1985-07-01), Nelson et al.
patent: 4609828 (1986-09-01), Small
patent: 4651020 (1987-03-01), Kenny et al.
patent: 4665322 (1987-05-01), Eishima et al.

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