What is a variable capacitor diode – how does it work? | Intermediate Electronics

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Table of Contents:
0:00 Introduction
0:39 The different names of a variable capacitor.
0:51 How a capacitor works and how this relates to a PN junction.
1:13 The variables that changes capacitance
2:20 How to change the depletion region width
3:00 Applications for varicap diodes
3:24 Practical example of a varicap being used as a tuning diode

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[centralcontrol]

This channel kicks ass! Clarity and presentation are killer. Amazed how few subs you've got. It'll change. Never quit!!

[HughRiddle]

A very clear and intelligible presentation and I really hope to see more like this.

[RushingRussianGaming]

Thank you so much! Great presentation 👍

[Pepsimaximo]

this was a good explanation, thank you

[ZoonCrypticon]

So the difference in capacitance between a normal diode and a varicap diode is mainly the area A of the P/N junction ?

[james]

at time 3:54 on that diagram, doesn't that inductor and varactor diode form a 'tank circuit'?

[jarchive]

Sir, can you please explain also about optical diodes

[belongstozorax]

Thanks Circuit bread. Can you make one for SCHOTTKY DIODE. Thanks again

[thebestdefense]

One can make a circuit that varies between chosen extremes of capacitance.. used this for a tube amplifier for adjustable pick attack properties.

[thanojssurendran]

o h my god an excellent video, thank you sir

[adamk]

super presentation, great explanation ... however a little too fast (at least for me). had to listen to several times ...

[garygranato]

great video but does anyone else find it irritating that the background is not squaire and level