gyraf

Half-turn-question
« on: February 02, 2021, 09:16:09 AM »
Hi Group,

Pondering a question, winding low (low) impedance transformers. Think ribbon and such, possibly lower.

Question: Can I do a half turn on a transformer winding? Why/why not?

It puzzles me if this is a place where you suddenly get nature insisting on whole numbers - or have I missed something basic?

/JAkob E.
..note to self: don't let Harman run your company..


abbey road d enfer

Re: Half-turn-question
« Reply #1 on: February 02, 2021, 11:07:16 AM »
Hi Group,

Pondering a question, winding low (low) impedance transformers. Think ribbon and such, possibly lower.

Question: Can I do a half turn on a transformer winding? Why/why not?

It puzzles me if this is a place where you suddenly get nature insisting on whole numbers - or have I missed something basic?

/JAkob E.
A half turn does not exist. The galvanic connection goes from one point to the same point, thus doing a whole turn at least.
A half-turn is like a rope with only one end.
Now this whole turn may have part of it less coupled than the rest. The subject has been brought in the LTspice group. When simulating a half turn, it is done with two inductors with different coupling coefficients.
In the particular case of a ribbon mic transformer, the wires and the ribbon complete the turn.
Who's right or wrong is irrelevant. What matters is what's right or wrong.
Star ground is for electricians.


 

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