I have made a Class d amp which supply voltage is 94-0-94 but max voltage AC i got from output is 20VAC
Can anyone tell me why this happens ???
Can anyone tell me why this happens ???
I can only agree with bucks bunny that the information you give doesn't leave us a chance to tell you what is wrong.
What we need is the situation and the problem.
Actually, the problem you seem to describe is that you have a maximum output voltage which is much below what you expect. That's sufficient for a start.
The situation is only described by a supply voltage of 94V-0-94V that indicates a high power design. You also tell us that it is a class D amplifier.
Attempting to make a high power design work, we can assume that you have at least basic knowledge on how to analyze the functioning of a class D amplifier circuit.
Please provide us with all the characteristics you can imagine may be useful to us when we analyze the problem with the amplifier.
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Do you know the gain of the amp, and the input signal amplitude? That would indicate if the problem is lack of gain or clipping/limiting.