Patent ID: 6219268
Filing Date: 2001-04-17
Classification: H02M

Abstract:
A power unit comprising:a generator having three-phase output windings;a pair of variable control bridge circuits connected to said three-phase output windings of said generator and connected in an antiparallel manner to each other to form a cycloconverter for generating a single-phase alternating current output to be supplied to a load, said cycloconverter having a pair of output lines via which said single phase alternating current output is delivered;a bridge drive circuit that causes said variable control bridge circuits to be alternately switched to operate every half a repetition period of said single-phase alternating current output, to thereby cause said cycloconverter to generate said single-phase alternating current output;a bridge rectifier connected between said pair of output lines of said cycloconverter, and having an output for outputting rectified output; andan electric energy-storing capacitor circuit that is connected to said output of said bridge rectifier and that absorbs a temporary rise of said rectified output therein.