Thursday, February 16, 2012

HW 3 19.8c

I need some help finding fm from 19.8 c. Here is how I'm starting
Zi0(jw)=1/jwC+jwLs Ziinf(jw)=1/jwC+jw(Ls+Lp)
Zio(jw)=j*(wLs-1/wC) Ziinf(jw)=j*(w(Ls+Lp)-1/wC)

||Zio(jw)||=wLs-1/wC ||Ziinf(jw)||=w(Ls+Lp)-1/wC

When I set these two equal to each other I end up with wLs=w(Ls+Lp).
Let me know how I should approach this problem.

1 comment:

Shengyu Wang said...

At fm, Zio is capacitive, hence ||Zio(jw)||=-(wLs-1/wC).