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Seriously ??? 😀😀😀

@@SimplifyingElectronics I made a ringing resonator on my channel about 1 month ago

Ohh cool 😀 Can we have the link ??

@@SimplifyingElectronics here's one with spark gap but I also made one with gas discharge tubes . th-cam.com/users/shortse3NHDFVFa_o?si=Q07Fg8FZDZAo-R6h

gracias 😀

Thank you dude....

A clamp diode will be required here because snubber circuits are slow and not suitable for high speed applications

The short is a snipped version of Long design video

Leakage inductance is not actually present in physical form. When we implement a transformer or inductor or any other source of magnetic field then a major portion of the magnetic field gets linked with the respective inductor or transformer. But a small amount of magnetic field does not flow through the intended magnetic element. This field gets lost and it does not contribute in energy transfer. So for simplicity we depict or display this field in the form of another small inductor or transformer in series (or may be parallel in some cases) with our main magnetic element. This is nothing but leakage inductance. So even if you do not show this leakage inductance in series, it is always present there. So in our tutirial the keakage inducatnce is already and always embedded in the primary of high frequency transformer. Now in our tutorial video it is shown that leakage inductance comes after the connection of snubber and primary of transformer. This was actually a mistake. From the above explaination we can say that the leakage inductance is embedded in the primary of transformer and it does not lie after the connction of primary of transformer amd snubber. Now the voltage withstanding capacity of FETs must be as low as possible because the cost of FET increases with increase in voltage withstqnding capacity. So snubber is designed in such a way that it must absorb as high energy as possible from the inductive kick such that energy diverted to FET is as low as possible and the voltage withstanding capacity of FET is again as low as possible to keep the cost to bay. I hope I made sense 😄😄

Thanks for the detailed reply! So if I understand correctly, the snubber in the 2nd configuration then also dissipates and attenuates the sum of the reflected voltage and the Leakage inductance kickback (0.3*Vin_max)

@@CannonballCircuit Yes exactly....😃

Thank you very much.... dont forget to mention areas where you are stuck...

What you are mentioning is a very customized version of dc dc converter... For that you will have to design the converter from scratch.... PI expert will not be able to help you...

1. Inductive loads like motors and actuators produces spikes while operating.... 2. These spikes are harmful for Semiconductor switches.... 3. That is why snubbers are used to absorb these spikes.... 4. For estimation of snubber you need to first estimate the max amplitude of the spike which can damage the semiconductor switches... 5. Then the max value of spikes that can be tolorated by the semiconductor.... 6. After that one can select the snubber which will absorb the voltage spikes.... 7. To know spikes against semicanductor, make a circuit diagram and simulate it in MATLAB Simulink and check voltage spikes across the semiconductor....

Electrolytic capacitors cannot be used. The capacitors should be of tantalum, ceramic or thin film types.

Since snubber circuit is subjected to switching frequency, it charges and discharges rapidly. Electrolytic capacitors are not made for such rapid transitions. So, the capacitors should be of tantalum, ceramic or thin film types. And we will surely include a calculation but right now we are busy putting out a course on Embedded C development. Feel free to check it out - th-cam.com/play/PLJGDxJZDiVu8JgYdVTxedAZhTJ5dyMkzO.html After the embedded C course we will surely give a calculation example for snubber circuit...

Haan sir.... Abhi hum progrming videos pe focus kar rahe hai.... uske baad hindi channel ke bare me sochte hai

Sure... It is simplifyingelectronics@gmail.com

@@SimplifyingElectronics I have send u an email

1. We have kept a margin of safety of 30% that if Vsw-max goes beyond 30% then also there wont be any damage... 2. It is a rule of thumb to have 30% margin of safety for voltage ratings and 50% margin of safety for current ratings...

@@SimplifyingElectronics that's ok. But according to formula you explained Vds=(Vin-max+0.3Vin-max+Vr) so after solving this it should come like Vds=(1.3×Vin-max+Vr) Vds=(1.3×380+101.6)V Vds=595.6V Now 30% of 595.6 is 774.28V So Vds-max = 774.28V But as per your calculation it is 766V for the same given values. How?

Thank you very much 😄😄😄

1. Impedence of capacitor is 1/(2*pi*f*c). Which means it is inversely proportional to frequency and here the frequency of voltage is same as the switching frequency of PWM controller which is in kHz. Hence the impedence of capacitor is very less. So capacitor provides a low impedence path. 2. The capacitor is selected in such a way that the impedence of cap is lesser than resistor. Moreover, resistor is selected such that the R*C time constant is such that before the next cycle of PWM arrives the energy of cap is quickly dessipated in the resistor and it discahrges the cap totally..... PS- sorry to have replied so late 😇😇

Really sorry to have replied late.... The topologies are totally dependent on power level. To decide on topologies 1. Go to a good design note from TI, ST, Infeneon etc. As power increases topology of converter and transformer changes

​@@SimplifyingElectronics please, can you attach me to a future wibiner conference

@@MohammedMohamed-cg3fn I will surely do it bro....

1. Any diode can take certain power or current for certain time which is generally in ms. You will have to look at graph of peak pulse power rating wrt pulse width. So for every power level you will get the maximum allowable pulse width in time beyond which the diode will get destroyed. You will have to know the power that will be dessipated through the TVS diode. 2. You can also refer the graph of peak pulse current Vs time. Follow same procedure as descibed for peak pulse power. 3. Or you can simulate it in LTSpice

Sure I will do that.... It will require some time meanwhile you can follow Sir Samben yaakov's video on resonant LLC - th-cam.com/video/tCEqm-RoP20/w-d-xo.html

They do give the design.... Its just you have to find it becuase it is somewhat difficult to find....

1. The IC must have some calculation for frequency based on R and C used in timing circuit. 2. If it is showing 50Hz then the time setting of DSO has to be expanded. But this is not a useful technique because flyback controllers might operate the smps on variable frequency.... 3. On secondary side you will not be able to judge the frequency.... Your best option is to go through the datasheet of the IC

Glad you got something out of it 🤟🤟

It good that you liked it 😃😃

Sorry bro did not get you 🤔🤔

Thank you... Also do suggest the topics on which you require a video explaination....🙂🙂🙂

Transformer design depends on the type of switcher you use..... Transformer design will be different for different switching ICS...... for reference visit - th-cam.com/video/ijZh9yyMfjs/w-d-xo.html and th-cam.com/video/3RypNRtmlhU/w-d-xo.html

Do not understand this language... sry bro....

@@SimplifyingElectronics Translit to Arabic. Please

Right now we do not have resources to translate.... Let me add arabic subtitles....

Thank you 😀

Ohh its really good becuase what you are building is the most basic form of smps.... It will help you understand clearly...😀 There is a note from STmicroelectronics I guess that explains the operation using transistors. Try to find it.... Email me on simplifyingelectronics@gmail.com. I will send the note to you. 😀😀

No problem😃😃

Sure I will help you with that.... What is the rating og the smps ?

It is there in first 14 tutorials since they are already recorded....😓😓 Also some of the tutorials from 1to 14 do not have music.....😀

No problem 😃

What is the maximum wattage of the converter ??

No problem 😀😀

Its great that the content is proving to be helpful..... I am an engineer....😀😀😀

Thank you sir😀😀😀