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The present work proposes a solution for implementing an isolated gate driver for SiC power MOSFETs. The isolation capability, gate switching and power transfer to the isolated side features are accomplished by using a unique magnetic transformer. To avoid core saturation, the original PWM control signal is modulated with a high frequency square-waveform. The on and off times are modulated with two...
The present work proposes a solution for an isolated gate driver suitable for SiC MOSFETs. The driver is implemented by means of two small magnetic transformers, to provide the turn-on and turn-off gate signals, as well as the power required for an adequate gate control. The operation is based on the modulation of the PWM pulses with a high frequency (HF) square-waveform signal. The resulting modulated...
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