Controller for d.c. current supplied by a plurality of parallel

Details Controller for d.c. current supplied by a plurality of parallel Controller for d.c. current supplied by a plurality of parallel

1979-04-24

1981-05-26

Shoop, William M.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

307 82, 307 58, H02M 324

Patent

active

042701651

ABSTRACT:
A plurality of conventional, parallel a.c. to d.c. to a.c. to d.c. converters are driven by a common a.c. source supply current to a common load. Each of the converters includes a controller for a pulse width modulated chopper; the controller determines the amplitude of d.c. current at the output terminals of the particular converter. Input terminals of each controller are responsive to the output voltage of the particular converter with which the controller is associated. A common controller for the controllers of the individual converters is responsive to the load voltage. The common controller varies the impedance of a single variable impedance connected in parallel to remote sense input terminals of the controller of each of the converters.

REFERENCES:
patent: 3001082 (1961-09-01), Clarke
patent: 3515974 (1970-06-01), Stich
patent: 3621365 (1971-11-01), Beck et al.
patent: 3675037 (1972-07-01), Hamilton
patent: 3818307 (1974-06-01), Hamilton et al.
patent: 3916283 (1975-10-01), Burrows
patent: 3947747 (1976-03-01), Smith
patent: 4039925 (1977-08-01), Fletcher et al.
patent: 4062057 (1977-12-01), Perkins et al.

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