I want to write a function that calculate the voltage for three junctions A,B and C in the picture below if we know the voltage of V. (G=0V). Did anyone write it before?

2 views (last 30 days)
  1 Comment
DGM on 29 Nov 2021
Edited: DGM on 29 Nov 2021
Express the currents entering and leaving those three nodes as functions of the node voltages V,Va,Vb,Vc. Expand and rearrange to form a simple linear system of equations. Solve.

Sign in to comment.

Accepted Answer

Milad Mehrnia
Milad Mehrnia on 30 Nov 2021
function ans = voltage(V,R)
E1 = [R(2)*R(7)+R(1)*R(2)+R(1)*R(7) -R(1)*R(2) 0]
E2 = [-R(3)*R(8)*R(4) R(4)*R(8)*R(7)+R(3)*R(8)*R(4)+R(3)*R(7)*R(4)+R(3)*R(7)*R(8) -R(3)*R(7)*R(4)];
E3 = [0 -R(5)*R(6) R(8)*R(6)+R(5)*R(6)+R(5)*R(8)];
E = [E1;E2;E3];
b = V.*[R(2)*R(7);R(4)*R(8)*R(7);R(8)*R(6)];
ans = E\b;
Benjamin Asakov
Benjamin Asakov on 30 Nov 2021
Thank you both guys. I really don’t know how to appreciate it.
Didn’t expect to have the answer less than a day. And not just one but three answers.
Really thank you

Sign in to comment.

More Answers (0)


Find more on Programming in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by