ABSTRACT
For this type of integrated converter, the buck converter is in the front followed by another basic non-isolated or isolated converter. Both of them share one active switch. The output of the buck converter will be used as the input source for the second converter. When the switch is on, input source energy will transfer to the buck output. The second converter will also work in the switch on state. When the switch is off, input source energy for the buck converter is disconnected from the buck output [1]-[5]. Based on the different operation modes for the inductors in the converter, the circuit will work in the mode of CCM-CCM, CCM-DCM, DCM-CCM, and DCM-DCM.
