Hybrid alternator with full output at idle

A hybrid alternator adapted for supplying a rated output current to electrical devices in a vehicle powered by an engine with an engine idling speed and an engine maximum speed comprising:

• a stator having a stator winding and a stator winding output;
• a rotor mounted for rotation within the stator, the rotor including:
• a shaft mounted for rotation within the stator,
• a wound field rotor portion mounted on the shaft for rotation within the stator, the wound field rotor portion having a rotor winding, and
• a permanent magnet rotor portion mounted on the shaft for rotation within the stator, the permanent magnet rotor portion having at least one permanent magnet;
• a voltage rectifier circuit connected to the stator winding output, the voltage rectifier circuit having a voltage rectifier output producing an output voltage for the hybrid alternator;
• and
• a voltage regulator connected to the voltage rectifier output for regulating the output voltage of the hybrid alternator by switching a forward polarity voltage and a reverse polarity voltage to the rotor winding;
• the alternator producing the rated output current when the vehicle engine is operating at the engine idling speed by switching the forward polarity voltage to the rotor winding and producing the rated output current when the vehicle engine is operating at the engine maximum speed by switching the reverse polarity voltage to the rotor winding.