Patent ID: 8022562

Claim:
A cycloconverter generator equipped with a magneto having an internal combustion engine and three-phase output windings facing a pair of permanent magnets to produce three-phase output when one of the windings and permanent magnets is rotated by the engine, single-phase output windings facing the permanent magnets to produce phase signals each indicative of a phase of the three-phase output per one rotation; a bridge circuit comprising positive and negative switching elements bridge-connected in antiparallel connection to the three-phase output windings to constitute a cycloconverter, and an AC power generator that generates single-phase AC power to be supplied to a load by turning on the switching elements in accordance with a desired frequency, comprising: an actuator adapted to change a speed of the engine; a required power detector that detects AC power required by the load; a desired engine speed determiner that determines a desired speed of the engine based on the required AC power; an actuator controller that controls operation of the actuator such that the engine speed becomes equal to the desired engine speed; wherein the actuator controller determines a phase signal number from the desired engine speed; and wherein the AC power generator generates the required AC power by turning on one or more of the switching elements such that the determined phase signal number becomes equal to a phase signal number to be produced within one period of frequency of the AC power to be generated.