Question

Discuss how a sinusoidal oscillator produces an output signal without an input signal. Discuss the difference...

Discuss how a sinusoidal oscillator produces an output signal without an input signal.

Discuss the difference between the circuit construction of a monostable and astable multivibrator

PLEASE NO HAND WRITTING...

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Answer #1

Answer :- Oscillators are used to generate signal without any input signal.
Generally oscillators take input as internal noise signal or sometimes DC signal is given internally.
Oscillators always have a positive feedback. Sinusoidal oscillators can produce a sine waveform and frequency may be varying from 20 Hz to 1 GHz.
Simple example is RC or LC oscillator in which charge on capacitor works as input signal to start oscillation.

The circuit diagram for astable and monostable have been shown below-


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