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Valyence1-Visitor
1-Visitor
February 2, 2011
Solved

Solving multiple equations to derive transfer function

  • February 2, 2011
  • 12 replies
  • 8017 views

I am trying to solve a system of equations that i derived from nodal analysis of a circuit but i am having trouble figuring out how to get mathcad to symbolicly solve the system. If someone could tell me what i am doing wrong it would be great.

Thanks.

Best answer by MikeArmstrong

Solution found see attached, but not sure on the validity of the results.

Mike

http://communities.ptc.com/servlet/JiveServlet/showImage/2-149416-2532/bar_anim.gif

12 replies

RichardJ19-Tanzanite
19-Tanzanite
February 2, 2011

You have three equations and two unknowns. You need the same number of equations as unknowns.

MikeArmstrong1-VisitorAnswer
1-Visitor
February 2, 2011

Solution found see attached, but not sure on the validity of the results.

Mike

http://communities.ptc.com/servlet/JiveServlet/showImage/2-149416-2532/bar_anim.gif

RichardJ19-Tanzanite
19-Tanzanite
February 2, 2011
Solution found see attached

A solution. Pick two different equations, and you will get a different solution because the equations are not consistent.

but not sure on the validity of the results.

If the solution is valid then the third equaton isn't

Valyence1-VisitorAuthor
1-Visitor
February 2, 2011

Yes thank you I added one extra node in my analysis that i didn't need thank you for the Help!

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