Electric power supply system for vehicle

摘要

In an electric power supply system including an alternator generating a low-voltage for energizing a battery and a low-voltage load and a high-voltage for energizing a high-voltage load such as a heater for a catalytic converter. Switching elements are disposed in an alternator housing to supply a low-voltage load and a high-voltage load selectively. The switching elements compose a part of rectifying unit for supplying DC output power to the high-voltage or low-voltage load.