Variable Sine Wave Generator Circuit. Sine wave is most commonly known as waveform for alternating current. An n channel fet and a pnp transistor are usually organized in a dc paired circuit and the voltage gain is dependent upon the negative feedback r3 and r4.
Besides the three common waveforms it generates it can amplitude or frequency modulate them as well. Sine wave generator circuit built with a transistor. In this circuit not only is the amplitude stabilized by servo control but voltage gain is included within the servo loop.
The circuit is designed in such a way that both the amplitude and frequency of the oscillator can be adjusted using potentiometers.
The output waveforms can be both amplitude and frequency modulated by an external voltage. Previously we have built simple square wave generator circuit today in this tutorial we are going to show you how to generate sine wave using few basic components like transistor resistor and capacitor. The sine wave is referred to as the basic of all kind of waveform since the combination of sine waves can produce any required wave. Pulse based sine wave generators.
