An audio amp with the LM4780

xxxxxxxxxxxxxx · Sep 27, 2009

I had a think - why do I need to combine the power anyway? I'll just use one transformer per side of the 25-0-25 per chip. That way, no transformers are paralleled and that should eliminate the problem. so long as there is a common ground, should all be OK.

mneary · Sep 28, 2009

mike11298 said:
I had a think - why do I need to combine the power anyway? I'll just use one transformer per side of the 25-0-25 per chip. That way, no transformers are paralleled and that should eliminate the problem. so long as there is a common ground, should all be OK.

That solves a lot of problems. You end up with very few (if any) common parts for each IC.

As you're now essentially building three stereo amplifiers, have you considered three boxes? That gives you a lot of flexibility for later system configurations.

An audio amp with the LM4780

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An audio amp with the LM4780

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