Parallel connected power supplies having parallel connected cont

Details Parallel connected power supplies having parallel connected cont Parallel connected power supplies having parallel connected cont

1986-11-24

1987-10-06

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

307 58, 323268, 363 70, 363 71, 364200, H02M 704

Patent

active

046987380

ABSTRACT:
A power supply system comprises several power supplies, each of which has output terminals that are coupled in parallel to supply respective DC output currents at the same time to a single load. Each power supply also has a branch of a control circuit, and each branch from every supply is coupled in parallel to thereby form a complete control circuit. In these branches, control currents flow that cause the respective output currents from the several power supplies to equalize. Each power supply also has a circuit for automatically turning the supply off independent of the other power supplies when a component in the supply fails; and under such conditions, a switch in the control circuit branch of the failing supply automatically opens which prevents control current from flowing therein and enables the remaining supplies to share the added load.

REFERENCES:
patent: 3549977 (1970-12-01), Watkins
patent: 4039925 (1977-08-01), Fletcher
patent: 4150425 (1979-04-01), Frosh
patent: 4270165 (1981-05-01), Carpenter et al.
patent: 4425613 (1984-01-01), Shelly
patent: 4635178 (1987-01-01), Greenhalgh

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