Transfer Function of the PID Controller in Advanced Mode

Support & Troubleshooting Moku:Go
1

Hello,

What is the transfer function of the Moku:Go PID controller in advanced mode? I read the application notes about the PID controller, but it only explained the transfer function in basic mode.

Thank you,
Kenny

2

“Advanced” mode is actually what I think more people are familiar with. You’re setting gain coefficients K_p, K_i, K_d, so your transfer function is just the laplace transform of the time domain equation. So K_p + K_i/s + K_d*s Source
Only thing to note is that the above is for linear gains rather than dB which I think is the default for moku, so you’ll need to convert when computing your transfer function.
Cheers.

-Jack

3

Thanks for the clarification! How will the integrator corner and differentiator corner settings affect the transfer function?

Thank you,
Kenny