Question

What are the essential components of an oscillator? Draw its block diagram?

Answer 1

An oscillator is essentially a sign generator that produces a sinusoidal or non-sinusoidal signal of some particular frequency. Oscillators find their various applications as these are the elemental components of any electrical and electronic circuits.
the essential components of oscillator are:
(i) tank circuit (ii) amplifier and (iii) feedback circuit,

Complete step by step solution:
An oscillator is essentially a sign generator that produces a sinusoidal or non-sinusoidal signal of some particular frequency. Oscillators find their various applications as these are the elemental components of any electrical and electronic circuits. It has basically three major components which are: (i) tank circuit (ii) amplifier and (iii) feedback circuit,
It can be clearly seen in the block diagram given below:

Continuous oscillations are the idea of working on an oscillator. Sometimes, an oscillator is claimed to be an amplifier with regeneration. Or more specifically, a feedback amplifier with an open amplification adequate to or somewhat greater than 1.

At the time of defining, we are saying oscillators are generators. But more specifically, oscillators are energy converters that transform dc energy into equivalent ac energy. The frequency ranges of the ac signal at the output of the oscillator ranges from a couple of Hz to many GHz.

Note: We are already aware of the fact that an amplifier needs an input signal that is amplified and achieved at the output of the amplifier. However, an oscillator simply requires dc voltage so as to supply a signal of desired frequency. The oscillator is especially classified on the idea of the signal generated at its output.