CCS/TMS320F28377S: CCS/TMS320F28377S

Hi Shyam,

Check this post: e2e.ti.com/.../1975766

Regards,
Gautam

This is my notch filter:

sys =

2.533e-06 s^2 + 1
------------------------------
2.533e-06 s^2 + 0.001592 s + 1

Continuous-time transfer function.

>> c2d(sys,1e-4,'tustin')

ans =

0.9696 z^2 - 1.935 z + 0.9696
-----------------------------
z^2 - 1.935 z + 0.9391

Sample time: 0.0001 seconds
Discrete-time transfer function.

I will translate the above into difference equation and use in my code.
Is that fine.

Thanks

I checked above one..not a very good notch.. Attenuation is not zero.
Any suggestions for improvement

Hi,

In the PRController.pdf, you had mentioned about PR controller without damping and also have given the discretised version of it.

I see that the gain at the resonant frequency is very high, which i want. I would like to use the corresponding difference equation in my code.

Also, 

just to clarify wrc is the desired resonant freq location and wo1 is the corrected resonant freq location.

Thanks

I have clarified the PR controller here

e2e.ti.com/.../2502975

I am going to close this thread, if you feel my answerd solved your issue please do click resolved.