Maker Pro
Maker Pro

Balun/Impedance transformer wireing?

How does one transform the impedance of a signal from X to Y given a core from
a switched psu (or other easy source). I can figure the wire turns ratio from:

Zp^2 Np^2 Z=Impedance N=Turns
---- = ----
Zs^2 Ns^2

Now how to rule-of-thumb calculate the primary winding turns and area?

What concerns me is overloading the logic chip output and/or line driver.
 
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