Waly’s writing is correct. So is Wavebour’s suggested practice. But you unnecessarily increase iron size this way.
For a given core volume, increasing the number of turns reduces the core flux without the penalty of more iron.
If all is arranged well (an art) the extra copper will reduce the empty window space too (good for voltage regulation).
Magnetization current goes down with increasing primary turns.
You can add some turns (same direction of rotation with the existing winding) on a transformer you have. Measure the primary current before and after and watch on an oscilloscope the waveform of the secondary winding.
George
For a given core volume, increasing the number of turns reduces the core flux without the penalty of more iron.
If all is arranged well (an art) the extra copper will reduce the empty window space too (good for voltage regulation).
Magnetization current goes down with increasing primary turns.
You can add some turns (same direction of rotation with the existing winding) on a transformer you have. Measure the primary current before and after and watch on an oscilloscope the waveform of the secondary winding.
George
The same number of turns on the core with bigger area!
They can wind you a bigger saturating tranny otherwise. ;-)
Soldered some resistor or pptc in parallel with tweeter instead of in series?
I'll post he answer when I find it?
I would imagine many of us have a technical library. I built a book case from floor to ceiling and wall to wall for reference books. I always liked the idea of not have to remember everything and go to the library for specific info in question;
Practical Transformer Design Handbook by Eric Lowdon. ISBN 0-8306-3212-3
THx-RNMarsh
Practical Transformer Design Handbook by Eric Lowdon. ISBN 0-8306-3212-3
THx-RNMarsh
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Yes BV
The primary current waveshape distortion is a good indicator of where is the operating point of the transformer
Mutual Inductance and Basic Operation | Transformers | Electronics Textbook
Plotting Magnetization Curves
B-H Curve Tracer
George
The primary current waveshape distortion is a good indicator of where is the operating point of the transformer
Mutual Inductance and Basic Operation | Transformers | Electronics Textbook
Plotting Magnetization Curves
B-H Curve Tracer
George
Well, we have the experts -- you know -- doctors, lawyers and Indian chiefs and Guru's. We can ask them.
And the old fashioned things... printed materials. Books. And professional vaults of info... IEEE and AES for example. But now we have a new expert called Mr Google... he is like the wizard of Oz.
With all these sources available today, you can learn anything and/or get an answer or means to figure it out for yourself. Add to that Test Equipment that does more for less than in the past...... Its a great time to be alive.
- Richard
And the old fashioned things... printed materials. Books. And professional vaults of info... IEEE and AES for example. But now we have a new expert called Mr Google... he is like the wizard of Oz.
With all these sources available today, you can learn anything and/or get an answer or means to figure it out for yourself. Add to that Test Equipment that does more for less than in the past...... Its a great time to be alive.
- Richard
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You want to check them against your wall of references then?
Jan
Things I have "learned" on the internet:
1+1=11
The AC impedance of a loudspeaker is half of the DC resistance.
Resistors don't distort.
Global feedback introduces a time delay equal to the actual propagation delay times the open loop gain divided by the closed loop gain.
The only non-ohmic characteristic must be exponential.
C is not equal to q/V.
Those are just the bits that quickly come to mind.
Remember "You can't put it on the internet if it is not true" goes well with "I always lie."
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