I have a doubt... when you are replacing the diodes with the battery, you have taken the polarity of battery opposite,i think.. clear it please.. you had done correct or it is wrong because when i solve questions , i always get wrong answers,,
In reverse bias ,,,, polarity of diode as taken same as Voltage across it,,, because Reverse diode is nothing but open circuit so the symbol basically represent the voltage across it..
yeah i had the same doubt too, i think he got it wrong as in the last circuit he changed the polarity of diode with opp to battery but while writing kvl eqn he treat the polarity as it is
Thankyou Very Much To NESO For all your Effort and video's 🙏🏼 Heartly thankyou For All video of all Subjects.... Your Explanation is very Simple and easy,,, Where as others took hours to explain ❤️❤️❤️❤️❤️
At 12:46 in diagram what does Z° voltage represents in the circuit as you draw it's polarity opposite to applied reverse bias voltage ? Also in reverse biasing barrier potential adds to applied voltage....plz reply sir
Oh my god what a wonderful videos , sir you are great , this is much more informative than taking courses on some other platforms ,your teaching extremely good 😍😍😘😘😘😘😘😘😘
Depletion region is narrow in reverse bias (of zener diode)as Compared to normal pn junction diodes due to high doping concentration and since the width of depletion layer is small so a high electric field acts (as E=v/x) and the reverse breakdown of junction takes place at a less voltage as compared to other pn junction diodes.
Hello Is there anyone who tell me what is the diffrence between avalanche breakdown and zener breakdown exactly? I undestood that in case of avalanche, electrons gains and electrons break the kovalent, but in case of zener, directly breaks kovalent. Is it true or could you tell me much clear explanation?
Sir ,as you said zener diode is heavely doped pn junction diode,and also the depletion region of such heavely doped diode will have narror region,which means the the barrier potential much reduced,then how did you say that in forward bias zener will act as normal diode with 0.7 drop (si) ? Can you please explain i stuck at this for an hour with my friends ..
In both the cases,i.e. in avalanche breakdown and zener breakdown there is tearing of covalent bonds bcz of high reverse bias potential, then how they are different???
Please explain me how you made the barrier potential symbol.....I mean p side of diode having -ve sign and n side of diode having + ve sign..... You make this opposite.... Please clear my doubt🙏
sir, normal diode also have a breakdown voltage above which the K.E of e increases &results in increased amount of e and conducts current .I have a doubt that why normal diode can't be used for voltage regulation
For a normal diode we has to apply more reverse voltage to get breakdown but for zener diode we can obtain breakdown earlier than normal diode no need to apply high voltage
- A zener diode exhibit a constant voltage of 5.6 v for current greater than five time the knee currwnt where knee current is 1 mA . The zener is to be used in the design of a shunt regulation fed from 15 v supply The load current varies ovee the range of 0 mA to 15 mA . Find tge suitable value for the redistor R What is the maximum power dessipation. some one pls explain how to find the power
I have the same question. Since zener diode is highly doped, so the number of electrons in n-region and holes in the p-region will be higher than normal diodes, higher charge carriers means higher concentration gradient among both sides so more number of electrons should flow from n to p side and more number of holes from p to n side, so the region of uncovered ions should increase and hence the depletion region. But this does not happens, I don't understand why ?
Have viva in 20 min. this is life-saving
Same here now
Best of luck in past
Same
+1
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Why college teacher don't teach like u ? Neso academy is just a Great
tq for helping
real ly a best lecture.thank you once again
thsnk you sir
Sir try to describe these leactures in Urdu .
best lectures available online for electronics!!!
ikr
I will be interested
You are life saver!!
Tomorrow is my semester exam and i think you are going to save me from getting failed.
how it went mate ?
I think He had failed so badly :)
🤔
Same story after 2 years !
I am also sailing in the same boat
I have a doubt... when you are replacing the diodes with the battery, you have taken the polarity of battery opposite,i think.. clear it please.. you had done correct or it is wrong because when i solve questions , i always get wrong answers,,
What polarity are you talking about?
In reverse bias ,,,, polarity of diode as taken same as Voltage across it,,, because Reverse diode is nothing but open circuit so the symbol basically represent the voltage across it..
yeah i had the same doubt too, i think he got it wrong as in the last circuit he changed the polarity of diode with opp to battery but while writing kvl eqn he treat the polarity as it is
You guys are so blessed.... Would want to do my masters in India straight... Bless up
You're the man! Thank you so much for making these videos. I get way more from your videos then I do from my microelectronics class.
Thankyou Very Much To NESO For all your Effort and video's 🙏🏼 Heartly thankyou For All video of all Subjects.... Your Explanation is very Simple and easy,,, Where as others took hours to explain ❤️❤️❤️❤️❤️
At 12:46 in diagram what does Z° voltage represents in the circuit as you draw it's polarity opposite to applied reverse bias voltage ? Also in reverse biasing barrier potential adds to applied voltage....plz reply sir
Thanks it help me so much in the university, I understand you better than my teacher.
NESO Academy saved me from getting F in Analog Electronics. Love you NESO :DDD
When you replace zener diode by equivalent circuit as a battery how you decide which terminal should be above ?
thank you sir... can you please make videos on MEMORY DEVICES also. Your tutorial is realy helpfull..
Oh my god what a wonderful videos , sir you are great , this is much more informative than taking courses on some other platforms ,your teaching extremely good 😍😍😘😘😘😘😘😘😘
Kindly tell me the link for PDF notes sir
Genius 👌
In last circuit
How can u put volarity as plus then minus for the vzo
But above polarity is negative then positive for diode
thanks to u sir and ur academy
Sir I got to know about semi conductor device because of you
Great explanation fast but not too fast and good info on theory and bits of practical sprinkled in, thank you.
You are king of electronics
Is zener diode always work in reverse biasing?
when it works in reverse bias current not to be zero sir?
why the depletion region smaller....even it is reverse biased
U R the best I have ever seen 💖
the polarity of the voltage is correct except at Forward bias region. please correct it.
sr pls make lecture on special diode like gun,tunnel ,pin, shotcky...etc......... pls pls pls
anyway the reverse voltage is constant , what about the current , its linearly increasing
Very good lecture... my thanks
10 minutes after watching this my topic missing in this paper 😭
In reverse bias you taken Vz=Vzo+IzRz ,voltage difference bw Vz nd Vzo is Vz-Vzo . in current we should take Iz-Izo.... Is it ryt.....?
Vz=Vzo+IzRz Plz explain me how it is
@@nanireddy601 i think it should be Vz - IzRz + Vzo = 0 please someone confirm.
Tomorrow is my semester exam won't be getting F
Neso Academy is really life saver! ❤️
Do you provide any videos on linear integrated circuits ??
Very well taught THANK YOU SIR..
Why depletion region is narrow in case of reverse bias.???
Depletion region is narrow in reverse bias (of zener diode)as Compared to normal pn junction diodes due to high doping concentration and since the width of depletion layer is small so a high electric field acts (as E=v/x) and the reverse breakdown of junction takes place at a less voltage as compared to other pn junction diodes.
Thanks a lot... All i know about rectifiers and diodes is because of you.. Thanks...
Hello
Is there anyone who tell me what is the diffrence between avalanche breakdown and zener breakdown exactly? I undestood that in case of avalanche, electrons gains and electrons break the kovalent, but in case of zener, directly breaks kovalent. Is it true or could you tell me much clear explanation?
Did you get the answer after 4 years.?
Thankyou Neso academy
Sir ,as you said zener diode is heavely doped pn junction diode,and also the depletion region of such heavely doped diode will have narror region,which means the the barrier potential much reduced,then how did you say that in forward bias zener will act as normal diode with 0.7 drop (si) ? Can you please explain i stuck at this for an hour with my friends ..
You made the concepts simple and clear man. It's really useful for gate aspirants like me. Thanks, neso academy
completely understand about each and every part of electronics. thanku neso acadmy for this precious knowledge.
Sir, Zener diode is reverse biased then how the depletion region of zener diode is narrow
great way of explanation keep doing like this you are making future of many average student(like me).
At 3:40 i think zener breakdwon occurs due to electron tunneling if i am not wrong. So what does direct rupture means? Can anyone please explain?
Thanks for the video. It really helped me. Keep up the good work.
Mine exam in 40 minutes 😅
Very good teaching sir
In both the cases,i.e. in avalanche breakdown and zener breakdown there is tearing of covalent bonds bcz of high reverse bias potential, then how they are different???
Very very benefit lecture in fact it gave me more energy in physics
Anybody please help. Is this series sufficient for gate preparation?
no,you will have to do more practice.
you are just amazing.you had a wonderful lectures.thank you so much
Please upload a lesson on varactor diode
Nind aa rahi hai 😭😭😭... Thoda josh se sikhao na bhayya.... Ithna Lori kyu gaa rahe ho ....
Can you please prepare well organized electronics practical videos as well? Good job...
Sir make video on all special purpose diodes
#DPTZ
Nice Explanation sir
Excellent explanation
Thank you sir
Tommorow I have end sem. Trying hard to cover as more as I can in one night.
Best teacher, thank you!
Amazing lecturer in performance and explaination
Very nice explanation. Sir Which device do you use for writing on the screen?
what is Zener potential
nhi support krenge because aap bhi paise lene lgoge
Just amazing explination, thank you very much
Please explain me how you made the barrier potential symbol.....I mean p side of diode having -ve sign and n side of diode having + ve sign.....
You make this opposite....
Please clear my doubt🙏
In reverse bias,,,, diode mostly act as OPEN CIRCUIT,,,, so we take the direction of VOLTAGE
Sir why we take opposite terminal of battery as compare to simple diode ?
vvvvv nice lectures .sir plz upload lestures on electronic devices and circuits
sir, normal diode also have a breakdown voltage above which the K.E of e increases &results in increased amount of e and conducts current .I have a doubt that why normal diode can't be used for voltage regulation
For a normal diode we has to apply more reverse voltage to get breakdown but for zener diode we can obtain breakdown earlier than normal diode no need to apply high voltage
Wat actually representing that V z not?
Good Explanation
what is VZo barrier potential of zener diode????????????/
aacha se padhjao
what is knee voltage ??
its breakdown voltage for zener diode
I am having exam in next 2 hours ⌛
hello!
sir videos are so wonderful really loving it
excellent explanation! Thank you very much for the lectures :D
thanq sir
madda\
Sir,
Is avalanche breakdown in normal diode and Zener breakdown in zener diode only?
Both
Nice
which teached pad do you use to teach?
Found this by accident but this is cool
Tq sir
Plz upload the video about tunnel diode
- A zener diode exhibit a constant voltage of 5.6 v for current greater than five time the knee currwnt where knee current is 1 mA . The zener is to be used in the design of a shunt regulation fed from 15 v supply The load current varies ovee the range of 0 mA to 15 mA . Find tge suitable value for the redistor R What is the maximum power dessipation. some one pls explain how to find the power
m
nice way to explain..thanks !
hue hue hue
Tmrrw exam..live saving video🥲🥲
Mera toh 2 ghanto mein exam
Why is the depletion region is smaller than the normal diode?
I have the same question. Since zener diode is highly doped, so the number of electrons in n-region and holes in the p-region will be higher than normal diodes, higher charge carriers means higher concentration gradient among both sides so more number of electrons should flow from n to p side and more number of holes from p to n side, so the region of uncovered ions should increase and hence the depletion region. But this does not happens, I don't understand why ?
Thanks brother.
symbol is wrong ..
You are very nice Sir
every lecture is awesome
Thanks a lot sir
thank you SIRE
speak loudly
he is back. yay
Thank you ..the best