Quantification of Benefits and Drawbacks in Power Conversion Based on Complementary MOS Structures

This paper deals with the advantages and drawbacks using complementary MOS structures in power converter. Approaching from the common-mode conducted electromagnetic interference (EMI) perspective, this paper shows, at first, how beneficial the complementary structures are. Experimental and simulation results underline the specific behavior of such structures. Then, other advantages and drawbacks are discussed and analyzed. This is made regarding the converter efficiency and the gate drivers operation for each converter leg. These issues are examined using simulations and experiments.