高通和低通类似，本篇文章用到的a、b参数，我在低通中有给出那个图

如果大家要设计高通滤波器，大家可以和低通滤波器一起考虑~~~~

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example1:

{

in there we can see:

R=1/C

}

finally

example2:

 

add example1,we can find

C1n=(a+sqrt(a*a+8*(k-1)*b))/4*b;if k==1;2a/4b=a/2b;

C2n=1/(b*C1n);if k==1;2/a;

finally

MultiFeedback Filters

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计算与Sally-key相比一样

先算低通

再算高通C=1/R;R=1/C;

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example

 

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R2=K*R1

 

finally

****6阶高通*****

 

finally