Abstract: A power conversion apparatus and method suitable for use with a variable speed two-phase generator are disclosed herein. A rectifier module is adapted to receive varying electrical power from a generator and produce a direct current link voltage with a controlled magnitude at a direct current link; and an inverter module is adapted to receive the direct current link voltage from the rectifier module via the direct current link and produce an alternating current voltage; the rectifier module comprises symmetrical circuit topologies thereby eliminating vibration and noise which may come from the generator. One rectifier module disclosed includes a circuit which is substantially of the class of circuits having two or more diodes operating in combination wherein one or more diodes have been replaced with one or more switching devices, rendering the rectifier controllable by Pulse Width Modulation.