Explain Balun
 

Would someone be kind enough to explain a balun both voltage and current?

TY

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Bill
KI4HPZ

Jennie wrote:
Would someone be kind enough to explain a balun both voltage and current?

http://www.w2du.com/r2ch21.pdf

http://eznec.com/misc/ibalun.txt
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73, Cecil, http://www.qsl.net/w5dxp

Jennie wrote:
Would someone be kind enough to explain a balun both voltage and current?

Also http://www.eznec.com/Amateur/Articles/Baluns.pdf
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73, Cecil, http://www.qsl.net/w5dxp

Bill,

Short answer.

I've often speculated about the answer to this same question and what I
figured, is correct. Here's the mental model I use.

Quick look at Cecil's references shows that the voltage balun has an output
center tap that is referenced (connected) to the coax input ground (shield).
Thus making the two outputs balanced, voltage-wise in reference to the coax
shield. a.k.a. a center tapped secondary, so-to-speak, which is referenced
to "ground" thus making the two sides equal in voltage (peak).

Looking at http://www.eznec.com/Amateur/Articles/Baluns.pdf
Figure A3-3, note that there is NO connection between primary and secondary,
so the voltage can do anything it wants, but the current at both ends of the
secondary will be equal. Note that there are other ways to get this result
where the primary and secondary (or the two windings) _ARE_ connected in
some way. However, this is an easy way to see the intended difference.


"Jennie" wrote in message
...
Would someone be kind enough to explain a balun both voltage and current?

TY

--

Bill
KI4HPZ