SNUBBER CIRCUIT ANALYSIS

Power conversion circuits use snubber networks extensively to control voltage overshoots, improve efficiency and minimize electromagnetic interference (EMI).
Specifically, a snubber is usually a network of components used to control and limit voltage or current excursions and is seen protecting the coils of relays and across semiconductor switches and rectifier diodes. Snubbers can also limit voltage and current edge rates, reduce EMI, limit power dissipation stress in semiconductors and reduce total switching losses, all dependent on the power conversion topology chosen and complexity of snubber. A typical RCD snubber network is shown in Figure 1, here used in an off-line flyback converter.

[@kaletsugas]

Thank you for the video. Please make more.

[@jabbarahmad3081]

Very good and useful information

[@pritambakshi6936]

Thank you Sir.

[@jayathnandana7955]

THANK YOU SO MUCH DEAR

[@hobby_plus]

Most welcome 😊

[@ROVERS-sj2vg]

I can understand, thank you, waiting for next video.

[@hobby_plus]

thank you, next video coming soon.👍

[@naveensingh4412]

Thank you sir

[@biswajit681]

How about the active clamping? Would you like to share some Knowledge on that.

[@hobby_plus]

snubber circuit also called clamping circuit.

[@biswajit681]

@@hobby_plus I am talking about active clamping circuit,the circuit you are using that is passive clamping

[@hobby_plus]

now I understand, I will.

[@paramanandprajapati3867]

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?

[@hobby_plus]

I will tell you, please waiting.

[@paramanandprajapati3867]

@@hobby_plus sure sir..

[@hobby_plus]

Actually you need snubber circuit, you can get it in my other video, i have send you a link. czcams.com/video/HpISvxXFsuQ/video.html

[@hobby_plus]

czcams.com/video/64Z5-9PzWF8/video.html

[@paramanandprajapati3867]

Okay sir.. Thank you..

[@MUSTAFAJOMAA]

Why voltage is doubled to 620 V at point 2

[@hobby_plus]

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.

[@MUSTAFAJOMAA]

@@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

[@hobby_plus]

@@MUSTAFAJOMAA I will make a video for that ok.

[@hobby_plus]

czcams.com/video/fc2Hqw7NJ_A/video.html Please watch this video for batter understand of your problem, thank you.

[@humanhuman481]

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.

[@hobby_plus]

Voltage flow na korle current flow kare dada?

[@user-bp9cl7hr1f]

6:48 this explanation is wrong!!
Please avoid this mis-information

[@hobby_plus]

where am i wrong, can you explain? Please.