Soft switching circuit of high-frequency active neutral point clamped inverter based on SiC/Si hybrid device

2020 ◽  
Vol 21 (1) ◽  
pp. 71-84
Author(s):  
Jianing Wang ◽  
Yuanwu Xun ◽  
Xiaohui Liu ◽  
Shaolin Yu ◽  
Nan Jiang
Author(s):  
G. NARESH GOUD ◽  
Y. LAKSHMI DEEPA ◽  
G.DILLI BABU ◽  
P. RAJASEKHAR ◽  
N. GANGADHER

A new soft-switching boost converter is proposed in this paper. The conventional boost converter generates switching losses at turn ON and OFF, and this causes a reduction in the whole system’s efficiency. The proposed boost converter utilizes a soft switching method using an auxiliary circuit with a resonant inductor and capacitor, auxiliary switch, and diodes. Therefore, the proposed soft-switching boost converter reduces switching losses more than the conventional hard-switching converter. The efficiency, which is about 91% in hard switching, increases to about 97% in the proposed soft-switching converter. In this paper, the performance of the proposed soft-switching boost converter is verified through the theoretical analysis, simulation, and experimental results.


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