AUDIO OSCILLATOR


Posted on Feb 7, 2014

A Wien bridge oscillator produces sine waves with very low distortion level. The Wien bridge oscillator produces zero phase shift at only one frequency (f=1/2 RC) which will be the oscillation frequency. Stable oscillation can occur only if the loop gain remains at unity at the oscillation frequency. The circuit achieves this control by using th


AUDIO OSCILLATOR
Click here to download the full size of the above Circuit.

e positive temperature coefficient of a small lamp to regulate gain (Rf/RLAMP) as the oscillator attempts to vary its output. The oscillator shown here has four frequency bands covering about 15 Hz to 150 kHz. The frequency is continuously variable within each frequency range with ganged 20 k ohm potentiometers. The oscillator draws only about 4. 0 mA from the 9-V batteries. Its output is from 4 to 5 V with a 10 k ohm load and the Rf (feedback resistor) is set at about 5% below the point of clipping. As shown, the center arm of the 5 k ohm output potentiometer is the output terminal. To couple the oscillator to a dc type circuit, a capacitor should be inserted in series with the output lead.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Digital Volt and Amp Meter
    3 square waves generator
    Audio power amplifier
    Ir Remote Extender
    Infrared (IR) Proximity (Distance) Sensor
    Simple Momentary Switch with 555
    Alarm LED Light Circuit
    gps receiver for kenwood tm d710e
    triac light switch circuit
    nicad battery charger uses
    Cmos Based Vehicle Anti-Theft Alarm
    Arduino Analog Read Potentiometer to Digital Out LED
    4 i n 1 burglar alarm circuit diagram



    Top