Some basic questions.....

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Hi everyone.....

I am starting to build an amp from the Silicon Chip kit using LM3876. So far I have built a power supply and one channel, all tests ok (no music yet though!). This will be run from the one 160VA 50V toroidal.

I am planning to begin with a separate power supply, mainly to aid with testing other imminent prototypes....

My question - With a separate PSU, should I have the toroidal and rectifier/filter circuits together, or should I put the rectifier/filters in with the amps, or does it not matter???
 
YFW said:
To reduce the power supply impedance is very important for such amp.
at mid and high frequencies is very important. That's why the decoupling must be located on the amp PCB.
The main smoothing is working at low frequency and some impedance inductance between smoothing and amplifier does little harm.
 
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