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This paper presents a multilevel modular step-down DC-DC switched-capacitor converter that utilizes soft switching resonant operation. Previous versions of traditional multilevel modular switched-capacitor dc-dc converters (MMSCC) have a low switching device voltage rating. Moreover, capacitor voltage stress increases proportionally as the voltage conversion ratio increments. Significant advantage...
This paper presents a 3-phase dc-link capacitor RMS current reduction method by increasing paralleled inverter module number for segmented traction drive. Compared with the existing 2-module paralleled system, this paper investigates increasing paralleled module number can further reduce the value of dc-link capacitor RMS current. The results show that 2 paralleled modules can reduce ∼45% and 3 paralleled...
This paper presents a novel modular multilevel switched-capacitor based resonant converter (MMSCRC) to achieve dc-dc power conversion function. In comparison to existing multilevel modular switched-capacitor circuits, the proposed switched-capacitor resonant converter (SCRC) possess voltage regulation capability. Its modular structure accomplishes voltage conversion function and proposed closed-loop...
This paper presents an innovative resonant multilevel modular bidirectional dc-dc switched-capacitor converter based on GaN switching devices. Proposed converter achieves the following advantages; soft switching, low voltage device rating, boost or buck mode, common ground, high conversion ratio, variety of environment temperature operation, simple control algorithm and modular structure. The proposed...
This paper presents a new bidirectional multilevel modular switched-capacitor dc-dc converter for high voltage and high conversion ratio application with low capacitor voltage rating. For the high voltage and high conversion ratio application, high voltage capacitor with good performance will not be available either, like the switching devices. For the traditional multilevel modular switched-capacitor...
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