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Flyback Transformer #Transformer

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hello sir, how can i set the total winding in trafo simulation? (flyback transformer)
 

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With that level of input data, the answer is 'make it about enough'.

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Best wishes John Woodgate OOO-Own Opinions Only

Rayleigh, Essex UK

I hear, and I forget. I see, and I remember. I do, and I understand. Xunzi (340 - 245 BC)


On 2023-07-18 12:15, usmanagani89@... wrote:

hello sir, how can i set the total winding in trafo simulation? (flyback transformer)

 

  1. Define the primary inductance as a parameter Lp
  2. Change the value of the primary inductor to {Lp}. the curly braces will pick up the value of parameter Lp
  3. Define parameter n to be the turns ratio.
  4. Set the secondary inductance to be {n*n*Lp}
 


The inductance ratio is the squared of the winding ratio. If you need a 4:1 ratio for the windings. The Inductance shall have a 1:16 ratio. Ie. A 1 uH and a 16 uH inductor.?


Cheers!
Bernie


tir. 18. jul. 2023 kl. 13:15 skrev <usmanagani89@...>:

hello sir, how can i set the total winding in trafo simulation? (flyback transformer)

 

  1. Run LTspice
  2. Open Help (press F1, or go to Help > Help)
  3. Open the Contents
  4. Go to F.A.Q. > Simulating Transformers

To simulate any transformers in SPICE or LTspice using this linear transformer model, you need to know the primary and secondary inductances.? Well, you need to know at least one of them, and then you can calculate the other if you know the turns-ratio = voltage step-up or step-down ratio.

Andy

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