Large transformer build ...., simple voltage regulation advice needed

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#21
wg_ski said:
For a 100 watt load, you appear the be following the other commonly used rule of thumb for non-audio applications - 2000 uF per ampere. You could run a car amp off that - just not a 1000 watter at full volume. It would be typical of the average draw of say a 100 or 150 watt amp (a practical size).

If you we’re considering a class D amp and could just build one, it would be better to just wind up the voltage you need to run it, rather than step it down and regulate to 14 volts, then use a DC-DC converter to generate what you would have gotten in the first place, just to run a class D car amp. The reason to use a car amp is if that’s what you had and you were going to use it. If there is another choice, it’s probably better.
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Yeah , the car amps are already on hand and I thought I would look at the possibility of using them , but the transformer was slated to be used unregulated for high output class d( diy ) . So thats that . I do appreciate all the advice / help deciding the viability of regulation at that voltage and current .
 
#24
Did you wind the transformer by splitting primary and secondary on separate sides?

If yes, that results into high leakage inductance that could be the main contributor to your voltage drop.
The other contribution comes from Rdc of windings.
 
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