DC voltage supply circuit for rectifying an AC input voltage to

Electric power conversion systems – Current conversion – With voltage multiplication means

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363 85, 363126, 363143, H02M 719

Patent

active

055724159

ABSTRACT:
A circuit is provided for rectifying an AC input voltage to provide a substantially constant DC output voltage. A composite input voltage is derived from the AC input voltage, which is composed of a scaled input AC voltage shifted by a selected DC bias voltage such that the entire range of such input signal voltages is contained within the supply voltages-of detection circuitry which controls the rectifier circuitry. The detection is thus carried out during both the upper and lower excursions of the input AC voltage.

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