Derivative of Sin wave function

[EFDG]

Hello,

I am performing Derivative of Sin wave which is Cos wave
while simulating right hand circuit giving different wave form please have a look.

http://www.electronics-tutorials.ws/opamp/opamp40.gif?81223b

 

[CDRIVE]

I'm a bit lost here because U1's output isn't connected to anything and your waveform looks like what was typically seen when injecting "Beat Frequency Markers" when viewing swept amplifiers and filters on a scope.

I know I'm missing something.

Chris

 

[Alec_t]

Try increasing R2 to 100k and connecting a 1nF cap in parallel with it (to suppress high frequency oscillation).

 

[EFDG]

ok, here is the result

how to get positive starting cos wave?
one more question if we want to cut some starting point of wave how should we cut?

 

[Harald Kapp]

how to get positive starting cos wave?

U2 is inverting. Use another inverter after U2 to get a cosine with a positive start.

one more question if we want to cut some starting point of wave how should we cut?

What do you mean by "cut some starting point"? You can tell LTSPICE to start recording after a certain amount of time (time to start saving data):

 

[EFDG]

ok, i am in actual circuit working to like delay in micro controller.

 

[Harald Kapp]

ok, i am in actual circuit working to like delay in micro controller.

I'm sorry, I dont understand this. Could you please explain a bit more detailed?