Starter generator for internal combustion engine

摘要

A starter generator for an internal combustion engine serving as a starter motor when the internal combustion engine should start and as a generator after the internal combustion engine starts and comprising a magnet rotor and a stator having a plural of coils, a plural of switch circuits to switch a current flowing through the coils and a switch controller to control switch elements of the switch circuits whereby the current flows through all the coils by controlling the switch circuits in accordance with a position of the rotor when the engine should start to thereby produce a large torque and the current flows through one or some of the coils via a rectifying circuit of rectifying diodes provided in some switch circuits after the engine starts to thereby charge the battery.