Vehicular ac generator

摘要

The invention reduces ripples of a rectified output caused by setting a neutral-point diode and improves a generated output by preventing excessive heat generation. First and second stator windings are configured by Y-connecting a pair of three windings on a common stator core so as to have a phase difference of 30° from each other. A rectifier device includes a first and a second rectifier for rectifying and outputting a phase current derived from an end of each of the windings and a neutral-point current derived from a neutral point of each of the windings. Outputs of each of the rectifiers are synthesized to generate a synthesized output at an output terminal. The first and second rectifiers have rectifying diodes and neutral-point diodes disposed on a common heat sink.