Transformer; make primary voltage x10 of the secondary voltage

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SUMMARY

This discussion centers on the relationship between primary and secondary voltages in transformers, specifically how to achieve a secondary voltage that is ten times greater than the primary voltage. The key formula discussed is Vp/Vs = Np/Ns, which indicates that a turns ratio of 1:10 is required to achieve Vs = 10Vp. Participants clarified that to produce an output voltage ten times the input voltage, the secondary coil must have ten times the number of turns compared to the primary coil. The conversation emphasizes the importance of understanding electromagnetic induction and the implications of turns ratios in transformer design.

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  • Understanding of electromagnetic induction
  • Familiarity with Faraday's Law
  • Knowledge of transformer turns ratio concepts
  • Basic electrical engineering principles
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AN630078
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Homework Statement
Hello, hypothetically if I wanted to create a transformer which had an output voltage is ten times the input voltage, how would I do this?
Relevant Equations
Vs=-Ns (dΦ)/(dt)
Vp/Vs=Np/Ns
I understand that transformers function using electromagnetic induction and Faraday's Law.
This implies; Vs=-Ns (dΦ)/(dt)
Meaning the secondary voltage is proportional to the number of turns on the secondary coil.
Vs∝Ns

Using the relationship; Vp/Vs=Np/Ns
If we want Vs=10Vp that would imply that we require a 10:1 turns ratio, i.e. ten times as many turns on the primary coil than the the secondary?
10Vp=10/1*Vs

So to increase the output voltage to ten times that of the input voltage would we just increase the number of turns on the secondary coil by 1/10 of that on the primary; so Ns=1?

Or if Vs and Ns are directly proportional then we would increase the number of by multiplying by 10?
 
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AN630078 said:
Using the relationship; Vp/Vs=Np/Ns
You directly get$$
V_s = N_s\; {V_p\over N_p} = V_p\; {N_s\over N_p} $$
So not 10 : 1 but 1 : 10
 
BvU said:
You directly get$$
V_s = N_s\; {V_p\over N_p} = V_p\; {N_s\over N_p} $$
So not 10 : 1 but 1 : 10
Thank you for your reply. Oh right, so if the turns ratio is 1:10 not 10:1 would that imply that in order to produce an output voltage ten times the input voltage one would have 10 times turns on the secondary coil than the primary coil?
 
AN630078 said:
Thank you for your reply. Oh right, so if the turns ratio is 1:10 not 10:1 would that imply that in order to produce an output voltage ten times the input voltage one would have 10 times turns on the secondary coil than the primary coil?

That's right. Are you thinking of building one? Caution!
 
Gordianus said:
That's right. Are you thinking of building one? Caution!
Thank you for your reply. Haha, no presently it is a hypothetical curiosity. Although, perhaps it is an aspiration I will indulge when I feel I have a better theoretical understanding of their functioning. 👍Indeed I will heed your message of caution at any rate.
 

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