Patent Number: 6,297,971

Title: Phase converter

Abstract: A phase converter that converts single phase AC electric power to balanced three phase AC power. Two input terminal connected to the output of a single phase AC power source connect directly to two output terminals of the converter. The phase converter has two serially connected storage capacitors with a common connection, a charging circuit for controlled charging the storage capacitors and an output circuit for controlled discharge of the storage capacitors to provide single phase AC power to a third output terminal. The charging circuit controls input to the storage capacitor to provide a sinusoidal input current and to step up the voltage to the storage capacitors. The output circuit provides output power to the third output terminal of a predetermined phase and amplitude, relative to the other two output terminals, to result in balanced three phase AC power at the three output terminals. The phase converter provides balanced three phase output for leading power factor, lagging power factor, and resistive loads.

Inventors: Meiners; Larry G. (Rapid City, SD)

Assignee: Phase Technologies, LLC

International Classification: H02M 5/14 (20060101); H02M 1/00 (20060101); H02M 5/02 (20060101); H02M 5/458 (20060101); H02M 5/27 (20060101); H02M 5/00 (20060101); H02M 003/36 (); H02M 005/45 ()

Expiration Date: 10/02/2018