V-I Characteristics of PN Junction Diode
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- เผยแพร่เมื่อ 27 มี.ค. 2016
- Analog Electronics: V-I Characteristics of PN Junction Diode
Topics Covered:
1. Volt-ampere characteristics of diode in forward bias condition.
2. Volt-ampere characteristics of diode in reverse bias condition.
3. Breakdown voltage or Zener voltage.
4. Cause of breakdown.
5. Peak Inverse Voltage (PIV).
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The breakdown of covalent bond through collision with energetic electron called avalanche not zener breakdown. Zener breakdown is case of direct rapture of bonds by electric field of junction.
Pardon me for being pedantic, but the reverse breakdown phenomena that you’ve described is caused by the avalanche breakdown, not zener breakdown. Thus the avalanche voltage, not zener voltage. The zener breakdown is a different physical phenomena that occurres not due to ionization, but due to quantum tunneling of electrons via the potential barrier that is higher in energy than the energy of electrons. To be fair, these two breakdown types get mixed up a lot, but still these are two different phenomenas, both of which may take place in semiconductors under various circumstances. Anyway, your lessons are really great, thank you very much for sharing them.
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What is cutin voltage
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Why the voltage remains constant even we increase the external voltage
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this is awesome, like the way you presented it. very different, attractive. just loved it. learnt a lot.
Hi Sir...Really these are good lectures, that you clarify lot of doubts. Kindly make a video on Diode Voltage & Current Derivation..also
Nice explanation sir.. ur lectures helps us to clarify many doubts..thank u so much
Very useful lecture.
Sir can you please explain why the graph in forward bias region shifts towards left when temperature is increased?
Thank you for this platform. Learnt a lot from your lectures. The correct term that should be used at
Very nicely explained sir. It definitely clears all the concepts. Thank you sir
you are a genius sir. Thank u very much.