Patent ID: 7301310
Filing Date: 2007-11-27
Classification: H02P

Abstract:
1. A constant voltage generator comprising: a housing; a permanent magnet rotor positioned within said housing; a prime mover operationally coupled to said permanent magnet rotor; a stator positioned within said housing around said permanent magnet rotor; a main winding coupled to said stator; an excitation winding coupled to said stator; a power source coupled to said excitation winding; and a control system comprising a current regulating unit and a voltage source inverter, wherein said control system is operationally coupled to said main winding for measuring current through said main winding, said control system further being operationally coupled between said power source and said excitation winding to provide a supplemental current to said excitation winding such that a combined current through said main winding and said excitation winding produces a constant voltage in said main winding.