Two Transistor Analogy of SCR in Power Electronics by Engineering Funda
ฝัง
- เผยแพร่เมื่อ 6 ต.ค. 2024
- Two Transistor Analogy of SCR is explained with the following Outlines:
1. SCR equivalent of two transistor model
2. Two transistor model with derivation of current
3. SCR working based in two transistor model
Chapter-wise detailed Syllabus of the Power Electronics Course is as follows:
Chapter-1 Power Semiconductor devices: • Power Semiconductor De...
Power Diode, Power BJT, SCR - Silicon Controlled Rectifier, Dynamic Characteristics of SCR, Gate Characteristics of SCR, SCR Triggering methods, Turn of OFF process of SCR, SCR Protection, Thermal Protection of SCR, Two Transistor Analogy of SCR, SCR Mounting, Resistor Triggering of SCR, RC Triggering of SCR, Methods to improve di/dt ratings of SCR, UJT - Uni Junction Transistor, UJT as Relaxation Oscillator, PUT - Programmable Unijunction Transistor, PUT as Relaxation Oscillator, TRIAC in Power electronics, Modes of TRIAC, DIAC in Power electronics, Comparison of SCR, DIAC and TRIAC, SCS - Silicon Controlled Switch, MCT - MOS Controlled Thyristor, Power MOSFET, Comparison of Power BJT and Power MOSFET, IGBT - Insulated Gate Bipolar Transistor, LASCR - Light Activated SCR, GTO - Gate Turn OFF Thyristor, Series Connection of SCR, Parallel Connection of SCR.
Chapter-2 Commutation of SCR: • Commutation in Power E...
Class A Commutation, Class B Commutation, Class C Commutation, Class D Commutation, Class E Commutation, Class F Commutation.
Chapter-3 Rectifier in Power Electronics: • Rectifier in Power Ele...
Basics of Converter, Rectifier and filter, Halfwave controlled rectifier, Single phase full wave controlled rectifier, Fullwave bridge controlled rectifier, Symmetrical Semiconverter, Asymmetrical Semiconverter, Three Phase Half wave rectifier, Three phase half wave controlled rectifier.
Chapter-4 Inverter in Power Electronics: • Inverter in Power Elec...
Series Inverter, Parallel Inverter, Single Phase Half Bridge Inverter, Signal Phase Full Bridge Inverter, Three Phase Inverter 120 Degree Mode, Three Phase Inverter 180 Degree Mode, PWM Inverter.
Chapter-5 Chopper in Power Electronics: • Chopper in Power Elect...
Control Strategies of Chopper, Step Up Chopper, Step Down Chopper, Class A Chopper, Class B Chopper, Class C Chopper, Class D Chopper, Class E Chopper, Jones Chopper, Morgan Chopper.
Chapter-6 Cycloconverter in Power Electronics: • Cycloconverter in Powe...
Cycloconverter, Basics of Cycloconverter, Step Up Bridge Cycloconverter, Step Down Bridge Cycloconverter, Step Down Cycloconverter, Step Up Cycloconverter, Three Phase to Single Phase Cycloconverter.
Chapter-7 Converter in Power Electronics: • Convertor in Power Ele...
Buck Converter, Boost Converter, Buck Boost Converter, Flyback Converter with discontinuous mode, Flyback Converter with continuous mode, Isolated Forward Converter.
Chapter-8 Application of Power Electronics: • Power Electronics Appl...
On Line UPS, Off Line UPS, SMPS, Comparison of SMPS with Linear Power Supply, Dielectric Heating, Induction Heating, Battery Charger.
Engineering Funda channel is all about Engineering and Technology. Here this video is a part of Power Electronics.
#SCR #Thyristor #PowerElectronics @EngineeringFunda
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Tomorrow is my exam of PE. ALL IM GOING TO DO IS JUST REFERING YOUR VIDEOS 😂😂😂😂. U r the best sir!
and day after tomorrow is my exam of PE
@@architaarchita2232 you replied after two year. Amazing!! 😂😂 I am done with my Engineering last year. 2021 passout.
@@giteshkolte9277 i will be done with my engg this year :)
@@architaarchita2232 many congratulations.. 😀😀
Hahaha
And i have my exam tomorrow
And i have to spend 2 more yrs to complete engineering
Every day I watch your videos and my respect for you keeps on increasing. Very simple explanation. Thank you!
Your positive comments motivates me, Thanks and welcome 🙏
Loving power electronics because of Ur explanation sir. Thank u
Hope that happens with all my dear students and faculty friends
Engineering Funda sir can you add thyristor ratings and measurement of thyristor rating videos
Your presentation was so nice..One small clarification I'll give for the viewers those who got confused. At 22:01 it was mispelled that " as width increases".. Actually alpha1 increases as width decreases because of increase in gate current..
He told previously that alpha is inversely proportional to base width. But as gate current increases depletion region width should decrease and base width should increase and then alpha should decrease. But he is saying alpha increases how?
So first we have to get clarification that alpha is directly proportional to base width or inversely proportional to base width? If u observe the video clearly he first told apha is directly proportional to base width and then he striken that and said alpha is inversily proportional to base width
It is simple bro he is wrong here
Very clear and very useful to students.thanku so much sir . awaiting for more videos
Your welcome
Sir pure sem kuch padhai ni kri thi power electronics m but apki video s teen din notes bnaye the or pura paper apke notes k according aaya .
Bhut bhut sukriya aapka 💯😄
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thank you for the wonderfull explanation, sir, expecting more videos for EEE students.
Love and happiness of students is my ultimate goal, God bless you 🙏, keep learning and keep progressing.
Wonderful explanation .
Thank u so much sir I understand it very clearly .
I liked the way u explained .
Thank so much sir
Today I got initial information about it
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Thank you so much sir :) Excellent explanation. Very helpful.
vivek lal your welcome
Thank you sir for sharing your knowledge
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
Really excellent explanation sir. The way you teach is really awesome sir. Now I understood this topic clearly .
Your positive comments motivates me, Thanks and welcome 🙏
Lecture was amazing ,it's realy understood
Nice lecture
That is very easy to understand the topic
Thank u sir,,,,
This is the best video by you. Thnks.
Clear explanation ✨
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You have explained very well sir... It's very much interesting....
Your positive comments motivates me, Thanks and welcome 🙏
Thanks sir you will make easy for examination question
Love and happiness of students is my ultimate goal, God bless you 🙏, keep learning and keep progressing.
Outstanding sir 👌👍
Your positive comments motivates me, Thanks and welcome 🙏
Your lectures are really very helpful
It's helps lots for making notes..
Thank u sir for ..
Thank you so much sir i really respect that🙌🏻
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
I was following your videos for this entire power electronics. But my sincere request to you sir please make a folder of all your pe videos like other subjects in your playlist
I have already made, you can easily use it from my android application engineering funda
Very well explained.....thanks
Very best video easy to understand 😃thank you so much
Very well explained thanks
Super!!!!!
I like it
From Karnataka
Aishwarya Viraktamath super mags
Aishwarya Viraktamath Mags 4 layer junction device andra yeno😁😁😁😁
Best and simple explanation tnx sir ji
Your welcome 🙏
TQ so much sir I learnt lot
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
Thank you sir..
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
Tq ....clear explanation
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
Thank u for fantastic video
Your Appreciations, care and share matters a lot to me. #EnginneringLove.
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Nice explanation sir ...we had understand clearly
Your positive comments motivates me, my goal is to create largest community of engineers in entire globe, so please help me for that by sharing this lecture series(playlist) with your friends in social media (watsapp, telegram etc). Thanks and welcome 🙏
The position of this video in the playlist is misplace. It should be at 6, instead of 9 (current position). Changing it to correct order will be very helpful!
Yes. You are right my friend.
Thank you very much sir....... ❤️❤️
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
excellent and understanding lectures super sir
Thank you so much sur
Your welcome 🙏
very good information thankss sir
Your Appreciations, care and share matters a lot to me. #EnginneringLove.
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Thank you so much sir .
Thank you ❣️
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
Thanks For This Vedio.... It Very Helps Me
Your positive comments motivates me, Thanks and welcome 🙏
22:20 be sure if increase in junction width causes increase in alpha or not.. previously at 21:12 you said it will decrease
surely with increase in width of base the current gain value will decrease
so common base current gain increases with depletion width? or not?
@@dewadattaa268 yes. You are right. I'm also facing a confusion about this. After your explanation i check this again and it is cleared now. Thank you dear friend.
Yes. I tooi thought so... it should decrease actually
Explanation from the instructor was very confusing. When positive gate pulse is applied then junction J2 will be forward bias i.e. depletion width across J2 decrease and most of the majority carriers can flow due to forward biasing which result in increase in alpha.
awesome lectures sir,but we will be glad if u taught switching charchateristics of every device
Thank you
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
Best sir for this topic
Love and happiness of students is my ultimate goal, God bless you 🙏, keep learning and keep progressing.
Sir Plz make videos on other subjects like production process
Thank you for your videos they are really great to understand .I wanna offer one important thing to you. Is it possible to make real circuit up to start to the end? Yes we learn basics but for example if you draw an induction circuit and explain all components why they are use?how circuit works they can be great.thank you
Yeah, it gives better understanding, but to make videos with circuit i need lab which i dont have at my home. But surely I will definitely try to make it in these ways. Thanks for your valuable inputs.
Sir you told as junction width increase alpha will be less , and again you told on increasing (Ig) junction width increases, which will result in increase of alpha 1 and alpha 2. I am confused.
Thank you sir
Thanks a lot sir...
Your positive comments motivates me, Thanks and welcome 🙏
Well explained Sir👌
Awesome explanation ❤
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@@EngineeringFunda Sure sir
Wonderful explanation sir
Thanks sir ..
Sir if we increase gate current...I think the depletion region at J2 should decrease(as to trigger the scr, we are applying positive gate pulse, so it reduces voltage drop at J2 and depletion region decreases) as depletion region is less at j2, penetration of depletion region into base also not high..then how width of base decreases🙄
Thank you so much !!!! 🧡🧡🧡🧡
Tq sir
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
Sir.... Lecture was awsnm ..bt can uh plzz deliver lecture fast.... i seriously yawned many tyms during video
Many says that ... Please go slow
U can increase the playback speed...
@@pushyourlimits8368 yes I watched it at 1.5x speed and still able to understand
thanks
Your positive comments motivates me.
Teachers like me just wants positive comment from student.
Love from you guys means a lot to me.
My goal is to create largest community of engineers in entire globe. Please help me by sharing this playlist with your friends.
great sir
Nice explanation
Your welcome
Thanku sir....very well xplained....but i have doubt that if alpha 1 + alpha 2 is >1 then NEGATIVE Ia comes there....plz xplain that
It can't be that. You will be taking alfa1 + alfa2 near to one, you shouldn't take greater then one. Else some other things will happen here.
Engineering Funda what r those other things??
thank u sir
Salute sir👌👌👌👌
Lovely sir❤️
Your positive comments motivates me, my goal is to create largest community of engineers in entire globe, so please help me for that by sharing this lecture series (playlist) with your friends in social media (watsapp, telegram etc). Thanks and welcome 🙏
Nice video
Your Appreciations, care and share matters a lot to me. #EnginneringLove.
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Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏
Super sir
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Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏
Sure sir
Thank you for your nice lectures. what kind of books (pdf materials) you refers (recommend)
thank you
Soo many books. Like bhimrao, khanchandani, some power electronics handbooks
Sir , quality of lecture is good... But there are lots of ads in between that distract from the topic. Hope you add those ads at the start.
Nice video @
Your welcome 🙏
Width of depletion layer is directly proportional to alpha or inversely proportional?
Inversely
👍
There is confusion between depletion layer and width. Are you talking about region width which is apart from depletion layer.As I know if depletion layer increase width of region will decrease and vice-versa.
thanks dear
Beautiful
thanks man
Sir in btw u said junction width increased will decrease current gain
but at last u change it
Exactly....this sudden change at the end was unexpected...rest was very good
What is reverse recovery current
Super sir ji
Sir please note that , here width of the depletion layer is decreases which intern is increasing alpha
Please make this correct , i would suggest re-uploadibg the video
You are literally confused while explaining base width and aplha relation.
Please someone give me direct Clear ans
If you know now, please explain it to me
❤
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❤❤❤
All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us.
Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏
nice. lecture
When we increasing gate current depletion layer is decreasing that's mean width of base is increasing so, alpha is decreasing. Sir how it possible alpha is increasing with increase of gate current? Please help me to clear this doubt sir.
Nice
Why (a1+a2) value goes to 1 as Ig increases
Excellent,but sir I can't understand y the values of alpha are increasing with the decrease of base width
Decreasing of base width=increasing in deplesion region
Is that right?
What is the difference between junction width and deplesion region width?both are not same?mm
+Kumar Raj : decrease in base width will result into decrease in deplition region
Then please play the video from21.35onwards.
yes have mentioned in video as deplition layer increases width decreases
is it helpful for gate concepts as well?
Ty:)
Sir What is common current gain?
If gate pulse (current) given scr is on
If input voltage exceeds the breakdown voltage than scr on
I don't know how scr is on if anode current is increasing
Please answer to my question
ON means anode current will increase.
As you said depletion region increase then Alpha decrease how how IG can increase the alphas values??
grt vedio..
Having doubt in relation between base width and common base current gain ?
hello sir,
if we are increasing the Ig (gate current) , don't you think that will increase the recombination and decrease the depletion region and decrease the Alpha ?
thanks for the help
Nope
If depletion region decreases then more current will move from emitter to collector so, Ic/Ie will increase and alpha will increase
Sir, is scr and thyristor are same
Sir can you please provide the order in which I must watch all videos so that I can have the correct link
Go to my channel:
Go in playlist:
Open power electronics playlist:
Now you see everything in order
Needed fast explanation sir
Some students need little time to understand and some are fast.
Agree
Sir How alpha1+alpha2 increases with increase in IG
Decreeing in base width