Poles & Zeros

[Yzordderex]

I have formulas for calculating where poles and zeros and unity gain
are for Type 3 feedback amplifier based on component values, but I
need the reverse - formulas for getting circuit values C1-C3 and
R1-R3. Trying to stabilize a buck controller. I could probably write
a set of equations and solve, or write a short blurb of code to solve,
but I seem to be a little lazy these days.

regards,
Bob

 

[Active8]

On 3 Feb 2004 15:32:07 -0800, [email protected] said...

I have formulas for calculating where poles and zeros and unity gain
are for Type 3 feedback amplifier based on component values, but I
need the reverse - formulas for getting circuit values C1-C3 and
R1-R3. Trying to stabilize a buck controller. I could probably write
a set of equations and solve, or write a short blurb of code to solve,
but I seem to be a little lazy these days.

regards,
Bob

Thanks for sharing that.

 

[Kais Badami]

Hi Bob,

I may have exactly what you need! Check out Technical brief TB417.1
from Intersil. Look at Pg5.

http://www.intersil.com/data/tb/tb417.pdf

Regards,
Kais