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RC should be too large compare to 1/Wc.

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12y ago

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Is envelope detector is a differentiators?

An envelope detector is not a differentiator; instead, it is a type of demodulator used primarily in amplitude modulation (AM) systems. It retrieves the envelope of a modulated signal to extract the original information signal. While both envelope detectors and differentiators involve signal processing, their functions and applications are distinct. The differentiator focuses on deriving the rate of change of a signal, while the envelope detector is concerned with capturing the modulation envelope.


Explain about the effect of the time constant RC in envelope detector?

The circuit that generates signal having the shape like imaginary curve is called an envelope detector. The effect of the time constant RC in envelope detector is that the output follows the input curve and the circuit performs like a demodulator.


What is the effect of RF value in envelope detector?

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What is the effect of time constant in envelope detector?

The time constant in an envelope detector affects the speed at which the detector can track changes in the input signal. A longer time constant results in smoother output but slower response to changes, while a shorter time constant provides faster response but may introduce more noise in the output signal. Balancing the time constant is important for optimizing the performance of the envelope detector.


What are the different types of distortions that occur in an envelop detector?

The main types of distortions that can occur in an envelope detector include amplitude distortion, phase distortion, and frequency distortion. These distortions can affect the accuracy of the envelope detection process and result in errors in recovering the original signal. Techniques such as filtering and adjusting the envelope detector circuit parameters can help reduce these distortions.


Why the output of the envelope detector changed frequency when the audio frequency was varied?

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What is is a passive ground detector?

it is a detector that does not change the conditions in which it is being used


Why envelope detector is more prefered in AM than synchronous detector?

Envelope detectors are preferred in amplitude modulation (AM) due to their simplicity and lower cost. They require less complex circuitry and are easier to implement, making them ideal for many practical applications. In contrast, synchronous detectors need a local oscillator and precise phase alignment, which can increase complexity and cost. Additionally, envelope detectors can still function effectively in the presence of noise, making them suitable for many real-world scenarios.


How does the Ratio Detector recover the intelligence from the FM envelope?

The Ratio Detector recovers intelligence from the FM envelope by comparing the amplitudes of two signals derived from the FM waveform. It utilizes a phase-locked loop to demodulate the frequency variations, effectively translating frequency changes into amplitude changes. By taking the ratio of these amplitudes, the detector can extract the original modulation signal, allowing for effective demodulation of the frequency-modulated signal. This method is particularly effective in reducing the effects of noise and improving the clarity of the recovered audio.


What is the circuit diagram of an Amplitude Modulated envelope detector circuit?

The Diode only lets the current one way, the cap smooths it out, and the resistor gives you something to take a voltage reading across. it will be kind of sawtooth, but will have the general envelope shape. For diagram see related links below.


What is the difference between detector and diode detector?

difference between detector and diode


Who invented the ice detector?

The ice detector was invented by Dr. Ted Fujita, a Japanese-American meteorologist. He developed the first ice detectors in the 1960s to improve aviation safety during icy conditions.