Circuit for defined current sharing between parallel-connected s

Details Circuit for defined current sharing between parallel-connected s Circuit for defined current sharing between parallel-connected s

1978-12-11

1981-03-17

Shoop, William M.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 79, 323222, H02M 322

Patent

active

042570905

ABSTRACT:
This invention relates to an improvement in a circuit arrangement for defined current sharing, between parallel-connected switching regulator modules in DC switching regulators with continuous inductor current and common error amplifiers for the purpose of generating regulated DC voltage from an unregulated voltage source, the improvement comprising means in each switching regulator module, composed of an inductor, a semi-conductor switch, a free-wheeling diode and a pulse-width modulator, whereby for the purpose of controlling the pulse-width modulator a signal proportional to the time-varying inductor current of the individual switching regulator module is negatively fed back to the output signal of the error amplifier, and where the signal resulting therefrom is used to control the pulse-width of the corresponding switching regulator module.

REFERENCES:
patent: 3737756 (1973-06-01), Hasley et al.
patent: 3824450 (1974-07-01), Johnson et al.
patent: 3913000 (1975-10-01), Cardwell, Jr.
patent: 3931566 (1976-01-01), Pask et al.
patent: 3984799 (1976-10-01), Fletcher et al.
patent: 4074182 (1978-02-01), Weischedel

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