Single Phase Midpoint Cycloconverter

A cycloconverter oftenly called as 'cycleconverter' changes the frequency of a single (or three phase ) alternating power sourcewithout the necessity of an intermediate ac todc conversion stage. A cycloconverter requiremultiple control device of a single or threephase excitation, and are limited to low outputfrequency only. The output of a cycloconverterhas a relatively large ripple voltages butcomparatively small ripple currents, which iswhat contributes to motor heating.