Wien Bridge Oscillator Output Waveform. The bridge comprises four resistors and two capacitors. The output of the amplifier is applied between the terminals 1 and 3 while the input to the amplifier stage is supplied from terminals 2 and 4 hence the amplifier output becomes input voltage of the bridge whilst the output of the bridge becomes the input voltage of the amplifier.
Oscillator circuit must satisfy the following two conditions known as barkhausen conditions. Phase shift around the loop must be 360 or 0. Check for the frequency obtained.
There are many oscillator circuits you can use to produce a clean ac signal arbitrary waveform or standard waveform.
A wien bridge oscillator circuit is a circuit that produces sine waves as output. Check for the frequency obtained. One of the simplest sine wave oscillators which uses a rc network in place of the conventional lc tuned tank circuit to produce a sinusoidal output waveform is called a wien bridge oscillator. A wien bridge oscillator was designed and setup for a frequency of 1khz and the output waveform is observed.
