BOOSTED ROTOR SUPPLY CIRCUIT AND METHOD FOR IMPROVING PULSED ELECTRIC MACHINE EFFICIENCY

A pulsed control of an Externally Excited Synchronous Machines (EESM), including a boost circuit and method for (1) harvesting the field energy stored in rotor winding when the EESM is transitioning to the off state following an on pulses, (2) storing the harvested field energy on a storage device, (3) optionally "topping" up the harvested field energy stored on the storage device, and (4) supplying the harvested and stored field energy as a "boost voltage" to the rotor, just as the EESM is transitioning on for the next pulse, the boost voltage aiding the rotor in quickly overcoming it's start-up inductance, rapidly turning on the rotor, resulting in a much faster transition time from the off state to the on state at the start of the next pulse.