Energy-storage and transfer mechanism in the reactor of new multiple-output DC-DC converter

The energy-storage and transfer mechanism in the reactor of new multiple-output dc-dc converter is examined to define the output characteristics of this converter. In this converter, only one output voltage is regulated directly by the feedback control, and all others are slave to it; the regulation of all the other outputs is performed by using the magnetic coupling among the windings of the reactor. The operation of this converter is divided broadly into two major modes. In one mode, this converter has advantages over the conventional ones in the steady-state and dynamic characteristics. But this converter, in the other mode, has a defect that extraordinary phenomena arise. With the increase in the sum of the slave output powers, the output voltage within the feedback loops tends to increase extraordinarily and also all the slave output voltages decrease inversely. Examining the energy-storage and transfer mechanism in the reactor of this converter, the critical condition is derived to define the boundary between the two operation modes, and the output characteristics is clarified in each mode.