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1kHz Sinusoidal Oscillator Circuit

2016-08-05 13:44  
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1kHz Sinusoidal Oscillator Circuit
As shown in the figure is the 1 kHz sinusoidal oscillator circuit. This circuit would generate 1000Hz sine wave through an ordinary operational amplifier 741 on the basis of double T circuit. To adjust the 100kΩ potentiometer will make the circuit start oscillation, and the oscillation frequency is determined by R1 and R2,which are equal in value generally. The oscillation frequency is inversely proportional to the resistance value. Usually the range of resistance is 4.7 ~ 18 Ω , and when the value of R1 and R2 is set, the required capacitance can be determined. In the above figure, the value of the resistance is 13Ω,and the capacitance is 0.01 / u F and the oscillation frequency is 1kHz.