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A new bidirectional switch and snubber circuit are proposed for medium-voltage AC/AC converters. The proposed switch can be constructed using 2-in-1 insulated-gate bipolar transistor and 2-in-1 diode modules, and can reduce the voltage stress of the switching device by series connection. The proposed snubber configuration is very simple and can regenerate absorbed energy. On the other hand, timing...
Matrix-converter is three phase AC to AC direct converter which is absence of dc-link capacitors for energy storage by using bi-directional switches. Like a conventional inverter, matrix-converter can control input waveform and power factor and can revive the electric power of load. Therefore, matrix-converter is superior to conventional pulse width modulation (PWM) inverter. In this paper, we report...
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