AM Demodulation - Envelope Detector Explained (with Simulation)

In this video, the working of the envelope detector, the demodulation technique of the AM signal is explained with simulation results.

Timestamps for the different topics covered in the video:

0:00 Introduction
2:31 Working of the Envelope Detector
6:33 Simulation of the Envelope Detector

Simulation Software - Multisim

The link for the other useful videos related to Amplitude Modulation:

1) What is Modulation? Types of Modulation

2) Amplitude Modulation Explained

3) AM Generation: Switching Modulator

The Envelope Detector:
The envelope detector is one of the most widely used demodulation technique of the AM signal.
It is a non-coherent demodulation technique, where the locally generated carrier signal is not required at the receiver.

The required conditions for the Envelope Detector circuit:
The envelope detector circuit works properly and recovers the message signal when
1) Carrier signal frequency is much greater than the baseband signal (fc is much greater than fm)
2) Modulation Index of the AM signal is less than 1
3) The RC time constant of the circuit is greater than 1/fc and it is less than 1/fm

In this video, the working of the envelope detector circuit is explained and at the later part of the video, the simulation of the same circuit is carried out for different RC time constants.

This video will be helpful to all the students of science and engineering in understanding the working of the envelope detector circuit for the AM demodulation.

#ALLABOUTELECTRONICS
#EnvelopeDetector
#AmplitudeModulation

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[ALLABOUTELECTRONICS]

Timestamps for the different topics covered in the video:

0:00 Introduction
2:31 Working of the Envelope Detector
6:33 Simulation of the Envelope Detector

[mamun]

This is the best explanation of envelop detection available in YT. And the simulation has just blown my mind. Thanks a lot❤️❤️

[ShrenikJobanputra]

genuinely great explanation, simulation, drawing, presentation, and everything! Thank you.

[jimmygustavsson]

You are amazing! Thank you so much for your work, it's increadible how simple you can make complicated subjects. I even liked the video before I started watching it and now that I have finished - I'm very happy I did.

[venugopal-mrnr]

Oh god, this guy works very hard. Excellent explanation in great detail, simulation is also shown. really appreciable.

[tydengr]

you tube always better than professor.

[kaedeumi]

Thanks a lot for your super-intuitive explanation which is even much better than what my lecturer did!🥰

[nazeemamohammad]

your explanation is very clear, all the best sir, keep going

[parminderkaur]

Excellent explanation.. best video I have ever seen on this topic 👍

[cayo]

Great explanation, very clear. I hope you would make videos about FM demodulation or detection.

[ostapkurtash]

One important note is that connecting LPF directly to Envelope Detector without proper signal isolation changes fundamentally the behavior of both. Also for the Load directly connected. Ideally you want to isolate the the modules Input and output from the signal filtering. One way to achieve this is through a simple source follower OpAmp configuration.

[ronkessler]

I agree, this is a super helpful and excellent video!!! I would love to see you do the same thing for FM ratio detector!!! Thank you for taking the time to make this.

[AnilKumar-rpvs]

Excellent depiction. Thank you so very much.

[ducc]

Thank your sir for the simulation it was very helpful. I understood the -ve clipping and diagonal clipping better through the simulation :)

[mayurshah]

Excellent as usual
Waiting for more ❤️

[lwalida]

great explanation as always, thank you sir.

[dewdrops]

Very good explanation , thankuu sr👍🏻👍🏻👍🏻

[vijayadurga]

Thank you much Sir
Excellent Explanation....

[deepsatsangi]

❤excellent . Just loved it. Keep more good work like this comming please. Jai Hind. What simmulation software have you used to detect output across load?

[aliusef]

thank you very much sir for this video