Ok, I'm working on an assignment (The last one!) for my College course, except I'm kinda confused on something... Not sure if anyone here knows what I'm on about, but hopefully there's someone *Looks at Freezer*.
Basically, I have to explain how a Proportional Control System can achieve Position Control in the form of a block diagram and an explanation.
This is my block diagram.
What I'm confused on, is how the motor achieves the ability to reverse? It's not explained in anywhere I look, and I haven't seen my teacher since I started on it.
All sources of information I have seen have included a Proportional Controller between the Op-Amp and Amplifier, but I saw no reason for it, and my friend said it was un-needed, as all it did was boost the error signal, just like the amp, therefore it was un-needed. He said our teacher didn't use one in the example he drew.
But I think the P Controller is needed for the motor reversing, but I'm not sure how or if that's even right.
Anyone..?
Also, how do you set Proportional Gain? Does it vary on the control device and input voltage levels? Again, I can't find an explanation.
Basically, I have to explain how a Proportional Control System can achieve Position Control in the form of a block diagram and an explanation.
This is my block diagram.
What I'm confused on, is how the motor achieves the ability to reverse? It's not explained in anywhere I look, and I haven't seen my teacher since I started on it.
All sources of information I have seen have included a Proportional Controller between the Op-Amp and Amplifier, but I saw no reason for it, and my friend said it was un-needed, as all it did was boost the error signal, just like the amp, therefore it was un-needed. He said our teacher didn't use one in the example he drew.
But I think the P Controller is needed for the motor reversing, but I'm not sure how or if that's even right.
Anyone..?
Also, how do you set Proportional Gain? Does it vary on the control device and input voltage levels? Again, I can't find an explanation.
Last edited by FFLink13 (2009-06-18 16:56:32)