Rectifier circuit provoding compression of the dynamic range of

Electric power conversion systems – Current conversion – With condition responsive means to control the output...

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363126, H02M 7217

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active

049243713

ABSTRACT:
The output terminals of a three-phase, wye-connected AC source, whose voltage varies over a wide dynamic range, are connected to a pair of DC voltage buses through a pair of oppositely poled, half-wave rectifier networks and a pair of switches. Taps uniformly positioned on the phase windings are brought out through another half-wave rectifier network directly to one bus, and the source neutral is connected directly to the other bus through a diode. A control circuit, operating in response to the DC voltage appearing across the buses, opens and closes the switches to selectively switch the rectifier networks and diode in and out so as to limit the DC voltage to a predetermined, compressed dynamic range.

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