Power supply unit for a vehicle electrical system of a motor vehicle

摘要

An improved power supply unit for a vehicle electrical system of a motor vehicle, which has an a.c. generator, that provides a phase signal, having an excitation coil, a field regulator assigned to the excitation coil and a rectifier having rectifier elements for the rectification of the generator voltage supplied by the a.c. generator. The field regulator has a voltage detection range for the evaluation of the phase signal having a minimum value and a maximum value, the maximum value being adjusted to the nominal voltage of a power supply unit of the motor vehicle.

主权项

1. A power supply unit for an electrical system of a motor vehicle, which has an a.c. generator that provides a phase signal, comprising:
an excitation coil; a field regulator assigned to the excitation coil; and a rectifier having rectifying elements to rectify a generator voltage supplied by the a.c. generator; wherein:
the field regulator has a voltage detection range for evaluating the phase signal having a minimum value and a maximum value, andthe maximum value is adjusted to a nominal voltage of a power supply unit of the motor vehicle.