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?
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.
![[11]Snubber circuit calculation for SMPS](http://i.ytimg.com/vi/64Z5-9PzWF8/mqdefault.jpg)
Very good and useful information
THANK YOU SO MUCH DEAR
Most welcome 😊
Thank you for the video. Please make more.
I can understand, thank you, waiting for next video.
thank you, next video coming soon.👍
Thank you Sir.
Thank you sir
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?
I will tell you, please waiting.
@@hobby_plus sure sir..
Actually you need snubber circuit, you can get it in my other video, i have send you a link. ruclips.net/video/HpISvxXFsuQ/видео.html
ruclips.net/video/64Z5-9PzWF8/видео.html
Okay sir.. Thank you..
How about the active clamping? Would you like to share some Knowledge on that.
snubber circuit also called clamping circuit.
@@hobby_plus I am talking about active clamping circuit,the circuit you are using that is passive clamping
now I understand, I will.
Why voltage is doubled to 620 V at point 2
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.
@@hobby_plus Thank you but still not clear, at pt 2 do the voltage doubles ehen MOSEFET is On or Off, and why it should double
@@MUSTAFAJOMAA I will make a video for that ok.
ruclips.net/video/fc2Hqw7NJ_A/видео.html Please watch this video for batter understand of your problem, thank you.
6:48 this explanation is wrong!!
Please avoid this mis-information
where am i wrong, can you explain? Please.
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.
Voltage flow na korle current flow kare dada?