Wien bridge oscillator circuit

Posted on Feb 7, 2014

In this laboratory experiment, we need to design the frequency determining network for a 1k Hz sinusoidal oscillator. Therefore, we should set: Capacitance = 100nF Resistance = 1520 ohm

Wien bridge oscillator circuit
Click here to download the full size of the above Circuit.

Output voltage waveform of oscillator with varying the value of R1:

Set R1 = 2033 ohm  (The loop gain is about to 1, sustained oscillation is resulted.)

Ser R1=2.1k ohm (The loop gain is greater than 1, overdamping oscillation is resulted.)

Set R1= 1.9k ohm (The loop gain is smaller than 1, underdamping oscillation is resulted.)

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Monostable circuit
    Gasfet Frequency Doubler
    Full-Wave Rectifier (To 10 Mhz)
    Qrp Sidetone Generator Code Practice Oscillator Circuit
    Sinusoidal 3Hz To 300Khz Vco Circuit
    Stablised Power Supply With Short Circuit Indication
    Minimum Theremin Schematic
    amplifier electronic circuits audio amp schematics 170w lm4651 lm4652
    The EF50 the tube that helped to win the War
    499 Robot
    TDA0161 metal detector electronic schematic
    VHF FM Crstal Set Radios
    Medical ultrasonic atomizer 1
    Sine wave output V F converter
    Superior performance combination of home theater AV circuit