A Transformer Isolated Driving Method for SiC MOSFETs with a Constant Negative Off Voltage
Guangyao Yu (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Mohamad Ghaffarian Niasar (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Dhanashree Ganeshpure (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Thiago Batista Soeiro (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Pavol Bauer (TU Delft - Electrical Engineering, Mathematics and Computer Science)
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Abstract
SiC MOSFETs have become more and more popular in recent years. Apart from its superior performance, attentions should be paid to its driving method. In this paper, an improved transformer driving circuit is proposed which can provide an almost constant negative turn-off voltage within a wide dutycycle range. Both simulation and experimental results are given to verify the effectiveness of this method.