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[SOLVED] 2nd order miller integrator

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goldsmith

goldsmith

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Dear all
Hi
I want to design 2nd order miller integrator , but i don't know how are its calculations. i know all things about 1st order miller integrator but how can i design 2nd order of that?
Thank you for your help.
Regards
Goldsmith
 

I'll try to describe it with words:

1.) Connect two equal valued resistors R1=R2 to the inv. opamp input and a capacitor C1 from the connecting node between R1 and R2 to ground (star circuit).
2.) Connect two equal valued capacitors C2=C3=0.5*C1 between the inv. opamp input and the opamp output and a resistor R3=0.5*R1 from the connecting node between C2 and C3 to ground.
3.) H(s)=-1/(jwR3C1)^2
 
Dear LvW
Again Hi
Thank you for your help.
Are R1 and R2 series with together? is it possible that you attach the circuit of that here , please?
With Appreciate and best regards
Goldsmith
 

Hi Goldsmith,
Yes, R1 and R2 as well as C2 and C3 are connected in series; together with the grounded element in between they form a T-like star circuit.
 

Dear LvW
Hi again
Thank you for your reply. but is it possible that you give me it's circuit . i think i can not guess its circuit ( imaginary) by my mind with these explains.( i confused !)
Appreciate
Goldsmith
 

Hi Goldsmith,

...with compliments (pdf attachement)

healthy new year.
LvW
 

Attachments

  • integrator.pdf
    1.5 MB · Views: 93
Dear LvW
Again Hi
Thank you for your helpful guide and your attachment and your patience , Really .
And have a successful and good year .
Sincerely
Goldsmith
 

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