Abstract
This paper evaluates three different 600V-level super junction (SJ) MOSFETs employed in zero-voltage soft-switching inverter applications. Inverter efficiency was measured and compared with the same inverter test setup by only changing different MOSFETs. Besides high efficiency requirement, better switching performance is also highly appreciated in various inverter applications. Comparison test was done on each super junction MOSFET to investigate its body diode reverse recovery and associated problems. Based on performance of both efficiency and reverse recovery related issues, a high voltage super junction MOSFET selection for soft-switching inverter was suggested.
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