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Cornel19-Tanzanite
19-Tanzanite
June 4, 2024
Question

Electrical Engineering Challenge #5

  • June 4, 2024
  • 1 reply
  • 3821 views

Hi,

Find the current through C1, voltage across L1 and voltage across R3. Analysis must be done using odesolve block (but of course other methods are welcome).

Cornel_0-1717515185398.png

 

Cornel_3-1717514837889.png

1 reply

ttokoro
21-Topaz I
ttokoro21-Topaz I
21-Topaz I
June 7, 2024

This challenge has no answer from SNS.

If using normal values of R,L,C, mathcad can solve this circuit by using laplace transform.

However, tau of RL is almost inpulse responce and CR is second order, so calculation soon over 10^304 and stop. 

image.pngimage.pngimage.pngimage.png

 

For initial challenge condition, my answer using best effort of mine is this.

Please check or post your answers.

image.png

t.t.
ttokoro
21-Topaz I
ttokoro21-Topaz I
21-Topaz I
June 8, 2024

Check the direction of current and voltages of turn on and off times, this is more good answer.

 

image.png

t.t.
C
Cornel19-TanzaniteAuthor
19-Tanzanite
June 8, 2024

What is SNS? 

And post Mathcad file or the complete solution through images on how did you got these latest results. As far as I remember these should be the correct plots. 

 

I have also some results, but I see that using initial challenge conditions the error with calculation reached 10^308 or whatever does not allow me to plot these results. I can show my calculations from Monday. But calculations are based only on laplace transform as you did  (I see that is very hard to obtain any solution by using solve block, as was the initial solution request)

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