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Node voltage Analysis with voltage controlled voltage source 
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#1
Sep211, 03:09 AM

P: 3

1. The problem statement, all variables and given/known data
Here is the circuit http://i.imgur.com/Xn2mc.jpg 3. The attempt at a solution I've tried it a few ways, but the one I'm going for at the moment is this Node 1: (v1v2)/10 + (v1v3)/15 + v1 /5 = 1 Node 2: (v2v1)/10 + (v2v3)/10 + v2 / 5 = 2 Node 3: 2Vx where Vx = (v2  v1)/10 When I solve I don't get the correct answers: Node 1: 5.405V and Node 2: 7.297V I tried doing equations without a 'node 3' involved but they just didnt work out either. If i DO only need to use 2, please explain to me how to do so, I'm really stuck :( 


#2
Sep211, 04:23 AM

PF Gold
P: 1,053

Don't have time to dive into this thing yet, but this is not helping:



#3
Sep211, 05:05 AM

P: 3

You're a lifesaver, figured it out.
It's always the small things that get me, stupid dependency equations. Thank you :) 


#4
Sep211, 02:55 PM

HW Helper
Thanks
PF Gold
P: 4,914

Node voltage Analysis with voltage controlled voltage source
I assume you dug up the 4th equation? 4 unknowns need 4 equations: v1, v2, v3, vx.
Of course, the 4th is obvious .... 


#5
Sep311, 05:13 AM

P: 3

haha i had the 4th equation i just wrote it wrong >.<



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