Sir i am designing a flyback with 600 V input and 48 V output. There is very small ringing in drain to source voltage of MOSFET. I am getting rinnging in the drain current. Why is that so?
Actually you need snubber circuit, you can get it in my other video, i have send you a link. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HpISvxXFsuQ.html
220 volt AC is = (220 X 1.4142) DC = 311 Volt Approx. It is constantly present in the circuit. But when transformer is in ON mode (Mosfet in active mode) electromagnetic field increased. When Mosfet is in OFF mode electromagnetic field convert to voltage and it is 311 volt. respect to ground you can get 622 volt in Point2. Because 311 volt (DC power) still present on the transformer transformer. So 311V + 311V = 622V. That is 311V DC power sources in series.
Sir english ta ektu thik korle bhalo hoi. Aar apnar explanation e kichhu jaiga te ektu ashubidha achhe, Voltage kakhono flow kore ki? Current flow hoi aar resistance er accross a voltage create hoi, tai na? ek baar rewind kore sunun aapner video ta.
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