Parallel power systems

Details Parallel power systems Parallel power systems

1987-11-04

1988-08-23

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

363 50, 363 65, 307 58, 307 82, G05F 146

Patent

active

047663642

ABSTRACT:
A d.c. power supply system comprises a plurality of voltage regulating power supplies connected in a master slave configuration, the number of regulators being one greater than required to provide load current requirements. The master regulator generates a control signal to control the output of the individual slave regulators to provide balanced load sharing. Failure of one of the slave regulators is detected and the failed regulator replaced by the redundant regulator without interference to the output load current. Failure of the master regulator is detected by steering circuitry within each slave which senses an improper master error signal and transfers control to the reference error amplifier circuity of the slave regulators. Diagnosis of the error conditions is provided by logical analysis of output currents.

REFERENCES:
patent: 3824450 (1974-07-01), Johnson et al.
patent: 4074182 (1978-02-01), Weischedel
patent: 4174534 (1979-11-01), Kotlarewsky
patent: 4194147 (1980-03-01), Payne et al.
patent: 4359679 (1982-11-01), Regan
patent: 4538101 (1985-08-01), Shimpo et al.
patent: 4635178 (1987-01-01), Greenhalgh
patent: 4698738 (1987-10-01), Miller et al.

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