Abstract: The present invention includes a circuit for use with a booster module of a DC-DC converter that typically includes both a driver module and one or more booster modules. The present invention includes associated feedback control circuitry that allows the booster module to operate in the manner of a driver module. In a preferred embodiment, the feedback control circuitry contains a voltage reference device, a differential amplifier, and an optocoupler. In this preferred embodiment, the photodiode portion of the optocoupler electrically connects to an output circuit for the booster module, and the phototransistor portion of the optocoupler connects to an input circuit for the booster module.

Abstract: In a power supply for use with electronic equipment, the power supply includes a dynamic transformer having a single rotary element with permanent magnets attached, magnetic bearings to support the rotary element during operation, primary and secondary windings linking the flux of the magnets, circuit means to drive the primary windings, and means of using the secondary AC output to provide DC power at the point of use.