Power supply device for e.g. ventilator, in e.g. vehicle, has power converter for adjusting excitation of generator depending on value measured at output of generator and voltage value measured in voltage intermediate circuit

摘要

The device has a generator (3) e.g. excited synchronous generator, driven by a motor (1). An alternating current voltage-alternating current voltage inverter (6) comprises a direct current voltage intermediate circuit that is energized by the generator. A power converter (4) adjusts excitation of the generator depending on a value measured at an output of the generator and a voltage value measured in the direct current voltage intermediate circuit. An exciter and an exciter rectifier supply electrical energy necessary for the excitation. An independent claim is also included for a method for operating a power supply device.