Resonant Smps for audio amp including tube preamps.

kees54

kees57
Hi all

First I do wish you all a happy new year.

I have a question about desiging a resonant smps for audio. because it is need to have
low radiation around it a resonant is best. Mine question is I need multiply voltages
and do not now how to design the transformer the best way.

I need

12,6 volts 5 amp and can do also half of this (tapped).
2 x 120 volts 250mA
1 x 300 volts 100mA
2 x 65 volts 10 amps or some more depending of power output.

These are dc voltages and need separated

I have hear in past that it was better to do the high voltages separate from the 65 volts amp supply
with a other smps but it is more nice to have all in one.

Can help somewone me out, is there a calculation software for the transormers? I can not just calculate
the 2 x 65 volt voltages and wind then the others because then the resoance get moved away and make
the transformer useless I think.

Th amplifier is a hybrid amp. I did see schematics for 65 volts x 2 and 15 volts x 2 with regulators a LM
series.

Thanks in advance.
 
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