DC-DC High Voltage Gain Switched Capacitor Converter With Multilevel Output Voltage and Zero-Voltage Switching

This paper presents the concept and results of a novel resonant DC-DC converter which achieves high voltage gain at low number utilized switches, stress on transistors, ZVS ZCS operation, efficiency variable gain. The uses switched-capacitors (SC) circuits with five switches allows it to reach six-fold By application adequate switching patterns, seven levels adjustment can be achieved. basic operation mode is zero current (ZCS) but part existing transitions switched-on drain-source voltage. Zero (ZVS) for reduction $C_{\mathrm {oss}}$ losses decrease in disturbances voltages currents. In proposed converter, are noticeably lower than output beneficial from viewpoint cost quality improvement. stage consists two series connected capacitors supply 3-level NPC inverters. Resonant inductors, used topology, store very amount energy their volume significantly case chokes typically switch-mode converters. Qualities such as switch count, efficiency, well variation demonstrated this paper. Furthermore, an impact MOSFET transistors type investigated. design based superjunction (SJ) MOSFETs compared implementation where $R_{\mathrm {ds(on)}}$ minimized. Due stress, Schottky rectifiers also converter. topology patterns verified by analysis, simulations experiments.