16 years ago
I notice that many transformers are rated at some impedance
given some load.
Input Impedance = 10K
Output Impedance = 2K
Input Impedance = 600 Ohm
Output Impedance = 150 Ohm
It is obvious that there is some winding ratio involved,
and I'm used to seeing the winding ratio, and calculating
the winding to match a particular impedance:
X = a^2 * Y (Where a is the winding ratio).
If there is a ratio of 5:1, then the idea is to match
Say you have a 600 ohm source, and an 8 ohm load:
600 = (a)^2 * 8
Then a = sqrt(600 / 8)
a = 8.66
Now, I'm looking for a transformer at "about" that winding ratio.
BUT! I am finding transformers rated at certain impedance to impedance.
QUESTION: Can I use the same algebra to essentially calculate the winding
ratio for that transformer?
(Meaning - they specify some ratio only because certain transformers are
designed specifically for applications - and other than power and current
ratings, if I can figure out the winding ratio, I might hone in on what I