AC GENERATOR FOR VEHICLE, INCLUDING RECTIFIER HAVING POSITIVE ELECTRODE SIDE DIODE AND NEGATIVE ELECTRODE SIDE DIODE, WHEREIN ONE OF THE POSITIVE ELECTRODE SIDE DIODES AND NEGATIVE ELECTRODE SIDE DIODES CONSTITUTING SINGLE ELEMENT AND THE REMAINDER CONSTITUTING TWO ELEMENTS CONNECTED IN PARALLEL

摘要

PURPOSE: An AC generator is provided to reduce a temperature rise of a rectifier and production cost, and suppress high voltage noises. CONSTITUTION: An AC generator comprises a rotor for providing magnetic fields; a stator(33) arranged around the rotor, wherein the stator has a stator core mounted with a plurality of phase windings(33x,33y,33z) so as to generate electromotive forces when the magnetic fields are provided; and a rectifier(5) formed by a bridge circuit including positive electrode side diodes(54x,54y,54z) and negative electrode side diodes(55x,55y1,55y2,55z) connected to the phase windings, respectively. One of the positive electrode side diodes and negative electrode side diodes constitutes a single element and the remainder constitutes two elements connected in parallel.