oscillator

[dwuihf]

i try to semulate this oscillator circuit,but it does not show any output oscillation from the oscilloscope!!!

can someone advice?..Thanks.

[supsup]

1. Resistor R5 should be more 10К (more, than resistor R2).
2. You have forgotten to connect an output of the amplifier to resistor R5 and capacitor C1.

[dwuihf]

i hv this circuit for wien bridge oscillator. i want to calculate the gain at different values based on changes in input and output voltage.

how can i make the change in both input/output voltage?

how can i show the oscillation waves  of the gain and frequency,phase and frequency?

[dwuihf]

this circuit for wien bridge oscillator with  output control,but it is not working!!! may someone help me?

[supsup]

If you put the variable resistor it is necessary to use all 3 pins. Also choose other opamplifier.

[dwuihf]

thanks alot for your help.i appreciate it.

[dwuihf]

     i hv another ciecuit for wien bridge passive oscillator and i want to compare the voltage input/output.

what power supply should i use? and how can i see the wave form? in both sides?

[supsup]

For comparison of signals on an input and an output you can use Bode Plotter.

[dwuihf]

i connect the Bode Plotter but still it cannot run!!

do i need to connect power supply? how?

[dwuihf]

i am trying to get different values of input/output voltages to compare the change in Gain/phase with respect of frequency changes.

is this circuit correct?