SMPS 12V->+/-30V Subwoofer car , with TL494 and TDA7294

KX36

New member
Congratulations on having built something working.

The +VCC line breaks the isolation through Q6, as does the ground through R33, so I'm curious as to whether you actually think you have isolation or not, since you have the 2 separate grounds joined by a parallel resistor/capacitor.
 
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