The types of distortions which can occur in the envelope detector output is/are

a)
only diagonal clipping.

b)
only negative peak clipping.

c)
both diagonal clipping and negative peak clipping.

d)
neither diagonal clipping nor negative peak clipping.

Correct answer is option 'C'. Can you explain this answer?

Question

The types of distortions which can occur in the envelope detector output is/are

a)
only diagonal clipping.
b)
only negative peak clipping.
c)
both diagonal clipping and negative peak clipping.
d)
neither diagonal clipping nor negative peak clipping.

Correct answer is option 'C'. Can you explain this answer?

Answer

Envelope Detector Output Distortions

Distortions can occur in the output of an envelope detector, which can affect the accuracy of the envelope signal. The types of distortions that can occur are:

1. Diagonal Clipping: Diagonal clipping occurs when the input signal is too large for the diode to handle. This results in a loss of information in the envelope signal, which can cause distortion in the output signal.

2. Negative Peak Clipping: Negative peak clipping occurs when the negative peaks of the input signal are clipped by the diode. This results in a loss of information in the envelope signal, which can cause distortion in the output signal.

Both types of distortions can occur in the output of an envelope detector, leading to inaccurate envelope signals. Therefore, it is important to design the envelope detector circuitry carefully to avoid these types of distortions.

Answer

Diagonal Clipping

This type of distortion occurs when the RC time constant of the load circuit is too long. Due to this, the RC circuit cannot follow the fast changes in the modulating envelop.

Negative Peak Clipping

This distortion occurs due to a fact that the modulation index on the output side of the detector is higher than that on its input side .

Hence, at higher depth of modulation of the transmitted signal, the overmodulation may takes place at the output of the detector .

The negative peak clipping will take place as a result of this overmodulation.

Answer

Give the advantages, disadvantages of and applications of AM

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