The subject invention reveals a new coupled inductor boost converter which
achieves zero voltage turn on switching for all four circuit switches.
The coupled inductor of the circuit is fully clamped and thereby achieves
excellent noise performance with neither snubbers nor clamps. The new
coupled inductor boost converter is outstanding for isolated high voltage
applications because the voltage stress of the secondary switches does
not exceed the output voltage, it requires only one magnetic circuit
element, and the average voltage stress of the secondary winding is equal
to or less than half the output voltage.