How to derive the relationship between the input and output of this integrator circuit?

huixianfxt

How to derive the relationship between the input and output of this integrator circuit? [Copy link]

This should be an error integral amplifier circuit. I want to know how to derive the relationship between Vou and VFB? Please advise! Thank you!

helloxx

I learned before that you start from the input and end up connecting to the output. What kind of circuit is in between? I'm studying it and I've forgotten everything.

晚点

It depends on what the feedback signal is.

huixianfxt

Published later on 2018-7-4 14:21 It depends on what the feedback signal is

Indeed! Different signals give different results when integrated. Here, assuming that the feedback signal is a triangle wave with a certain frequency (for example: 500HZ), what should be the result of integrating the error between the triangle wave and the voltage reference? I hope there is a formula that can calculate the various parameters of the output signal. Please advise! Thank you!

晚点

huixianfxt posted on 2018-7-4 14:31 Indeed! Different signals have different integrals. Here, assuming that the feedback signal is a triangle wave with a certain frequency (for example: 500HZ), then the triangle...

It's probably like this, you can calculate it.

huixianfxt

Posted later on 2018-7-4 14:49 It's probably like this, you can calculate it.

Can you give an example based on the formula, for example, when VFB is a triangle wave, what is the amplitude of the output signal? The trend of the output signal waveform change, etc.! Thank you! I haven't used the theory for a long time and I have forgotten it