A DCDC converter is disclosed comprising an active clamp topology, including
an active clamp resonant transition system to provide substantially zero or reduced
voltage for turn-on of the primary switch. The resonant transition system includes
an inductor in series with the primary winding of the power transformer and a clamp
diode that operate cooperatively to turn on the primary switch with reduced voltage.
The addition of these circuit components provides lower switching losses and lower
component stresses in the overall design.
