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ygormarca1-Visitor
1-Visitor
December 5, 2018
Question

Solving an equation

  • December 5, 2018
  • 2 replies
  • 3974 views

Hi there,

 

I have the equation below which Vout and Io are variables and I need to isolate Vout from the right side of the formula, but the function is too large to display.

   

I could manually isolate Vout, but I found a third order equation that again MathCad could not solve...

  

The problem is that I have two variables, Vout and Io and I have to plot a graph of Vout/Vin in function of Io.

2 replies

T
terryhendicott21-Topaz II
21-Topaz II
December 5, 2018

Hi,

 

The equation is too hard to read from the graphic.  Enclose your worksheet please.

Regards

Terry

    Y
    ygormarca1-VisitorAuthor
    1-Visitor
    December 5, 2018

    Sorry, I just uploaded a worksheet. 

     

    Thank you

    L
    LucMeekes23-Emerald IV
    23-Emerald IV
    December 5, 2018

    What's the circuit and what are you calculating in the circuit?

    (How did you get to this formula?)

    Or did you just type this entire formula in from your head?

    (I'll accept a picture of the schematic, worksheets preferrably saved as Mathcad 11 .mcd)

     

    Luc

      Y
      ygormarca1-VisitorAuthor
      1-Visitor
      December 5, 2018

      Hi Luc,

       

      Well, it`s a static gain of a converter.

      I think the schematic would not help in this case because it is too complex to understand it quickly. The problem is the math behind this equation.

       

      I uploaded a worksheet in mathcad 11 if you want to see.

       

      Regards.

      L
      LucMeekes23-Emerald IV
      23-Emerald IV
      December 5, 2018

      Is this what you are after?

      LM_20181205_Problem.png

      (Still I think it would be better to start from the design)

      Success!
      Luc

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