ZERO Pole Block cant change s term value

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How can i use a zero-pole block to input
5/(0.2s+1)
I cant figure out how to give a value of 0.2 to the s term in the pole

Accepted Answer

Mathieu NOE
Mathieu NOE on 9 Nov 2020
hi
5/(0.2s+1) = 25/(s+5)
now you know !
  4 Comments
Mathieu NOE
Mathieu NOE on 9 Nov 2020
Edited: Image Analyst on 9 Nov 2020
Well, what are you trying to do ?
The two expressions above are equivalent. It may be easier to see in the second version that this tf has no zero and one pole at -5 rad/s.
So you can do for example :
[NUM,DEN] = zp2tf([],-5,1)
bode(NUM,DEN)
and actually see the roll off above the pole frequency.
Daire McGorman
Daire McGorman on 9 Nov 2020
Edited: Image Analyst on 9 Nov 2020
Works grand .
Thanks.

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