Abnormality detection apparatus of vehicle AC generator

摘要

An abnormality detection apparatus of a vehicle AC generator that includes a rectifier for providing DC voltage is disclosed. The abnormality detection apparatus includes an abnormality judging unit and an alarm lamp. The abnormality judging unit judges abnormality of the vehicle AC generator if the number of ripples that is included in the output voltage of a rectifier is not equal to or more than a predetermined number for a predetermined period. The alarm lamp lights when the abnormality judging unit judges abnormality.