Root Locus for Dominant-Pole Compensation

Status
Not open for further replies.
A

akbarza

Full Member level 2
Joined
Dec 18, 2013
Messages
131
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Activity points
2,556
hi


in Gray& Meyer book ( Analysis_and_Design_of_Analog_Integrated_Circuits_5th ) in section 9.5.3 in paragraph 3 is written:

my question is about 45 degree. i don't know where this value come and how effects peaking and the value off peaking.
anyone can explain where this value come and effect of it on peaking.
i have attached the pic in the book about this subject.



thanks
 

my question is about 45 degree. i don't know where this value come and how effects peaking and the value off peaking.
Click to expand...
The 45-degree value is not a strict threshold, but rather a reference metric to determine from which gain your system will begin to have a much more oscillatory than damped characteristic. The above system is of 2nd order, which is quite explored and there are many figures of merit well known in the technical literature showing the waveform in the time domain for each damping factors. Keep im mind that for the highest imaginary component (y-axis) and the smaller real component (x-axis), there will be a greater predominance of unstably behavior, taking longer to converge to a steady state.
 
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…