Peak load multi-phase switching scheme for paralleling different rated power systems

A peak load multi-phase switching scheme for paralleling different rated power systems operated in isolated flyback converters is presented. The small signal model and limitation are also derived. It can operate without current sharing compensator and it does not need to consider the tolerance of components in current feedback loop of each subsystem. Furthermore, different rated output power subsystems can be paralleled and composed of a large power system by this scheme.