Chapter 12. Oscillator. Dr.Debashis De Associate Professor West Bengal University of Technology. Contents:. 12-1 Introduction 12-2 Classifications of Oscillators 12-3 Circuit Analysis of a General Oscillator 12-4 Conditions for Oscillation: Barkhausen- Criteria 12-5 Tuned Oscillator
West Bengal University of Technology
If the output waveform is non-sinusoidal, which refers to square/saw-tooth waveforms, the oscillator is said to be a
1. Amplifier with positive feedback produces a negative resistance in the system.
2. A frequency-determining network creates oscillations at certain required frequencies.
3. System non-linearity introduced by the devices contain the amplitude of oscillation.
Circuit Analysis of Tuned Oscillator:
communication circuits for different modulation techniques—AM, FM, PM—the use of an oscillator is must.
control voltage is set to a nominal level.