Abstract: A Low-to-High-Power, high reliability, high efficiency, small size transformer for power supply/DC—DC converter applications, using an inner layer winding constructed in a multilayers PCB and perfectly insulated with respect to the secondary, each layer having one ore more loops, interconnected to other layer by vias and contacted with simple pads, or any other contact type, including special connectors inserted in the PCB. The secondary is a special cooper strip designed as one or more one-turn strip, with pins designed for mechanical attachment and electrical contact. All the secondary strips on one side of the PCB, are perfectly symmetrical to the ones on the other side, so that they are interchangeable, and can be mounted on either side of the PCB. The secondary may be contacted directly to the strips, or with any other type of power connector inserted in the PCB.

Abstract: A transformer group in which a multitude of transformers are used to supply energy to a single load. The transformers are connected in series; in order to assist in providing a "flux equalizing" affect, the invention includes a flux equalizer circuit. The flux equalizer circuit provides a series of flux windings. Each flux winding is associated with a single transformer. The windings are arranged in parallel. In this manner, a balancing of the output of the transformers is obtained; the power output from each transformer is "sensed" by its associated flux winding which is "shared" with the other transformers via their own associated flux winding. Power is process then through the secondary windings, rectifiers, and output filters to a common load.