This is a filter in voltage feedback, but how to analyze the function of this filter? What type of filter is it?
Michelle 發表於 February 3, 2021
Are you not a voltage loop?
Micah 發表於 February 3, 2021
It is a voltage loop, just want to ask, how to analyze the filter circuit formed by the amplifier on the left side of the voltage loop? What kind of filter is it?
Jenna 發表於 February 3, 2021
Is this PI adjustment?
Micah 發表於 February 3, 2021
It is a PI regulator, but I understand that the integral circuit constitutes a low-pass filter. The feedback components are only C24 and R47. When the corner frequency is C24*R47, the gain drops to 1. At low frequencies, the op amp is almost open-loop operation, and the gain is very high. .
Colin 發表於 February 3, 2021
Which is the filter? Isn't that a voltage loop and a current loop?
