System and method for regulating multiple outputs in a DC-DC converter

A method for providing independent secondary side voltage regulation for a plurality of loads, said method comprising the steps of:

• providing a DC-DC converter for providing independent secondary side voltage regulation for a plurality of loads;
• providing a power transformer having at least a primary winding and a secondary winding;
• providing an input circuit coupled to said primary winding for coupling an input DC voltage to said primary winding;
• providing a plurality of output channels coupled to said secondary winding, each of said output channels having a secondary side switching element;
• providing secondary side control means for alternately turning on and off said secondary side switching elements for providing said independent secondary side voltage regulation;
• and
• providing a feedback of a residual energy level from a last of the plurality of output channels to a control associated with the input circuit coupled to said primary winding, the feedback used by the control to adjust a charging of the primary winding to provide a threshold residual energy level.