Hello !
I saw in the schematics of the PSU for DAC's output, something unusual .
The audio output stage(one side) is made with 2 OP Amp AD712, mounted in differential ; the PSU is made of 2x 7815 (Pos rail), 2x 7915 (neg rail )
I don't know why 2 voltage regulators TO220 (1.5A each !) connected // are needed ? Is there any advantage in such topology ?
Thanks for any advice
R.C.
I saw in the schematics of the PSU for DAC's output, something unusual .
The audio output stage(one side) is made with 2 OP Amp AD712, mounted in differential ; the PSU is made of 2x 7815 (Pos rail), 2x 7915 (neg rail )
I don't know why 2 voltage regulators TO220 (1.5A each !) connected // are needed ? Is there any advantage in such topology ?
Thanks for any advice
R.C.
7815 Reg
I intend to swap these regulators, with a home-made board, a lm317 (better output noise ) and caps ,solid tantalum 20µf on output.
For the ajusting level output, I have the choice :
_Resistors with 10µ cap //
_Tl431, as the reference source
Any comments ?
I intend to swap these regulators, with a home-made board, a lm317 (better output noise ) and caps ,solid tantalum 20µf on output.
For the ajusting level output, I have the choice :
_Resistors with 10µ cap //
_Tl431, as the reference source
Any comments ?
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