PSU concerns

[Matthew S. Padden]

Hi..

>> Often the *Noise* of voltage regulators is a problem.
>> Drawing a reference current by a resistor from a 78xx
>> regulated supply can ruin your SNR completely.
>> 
>> JH.
>> 
>One solution is to split the resistor in 2 resistors in series
>and put a capacitor between ground and the node where the two
>resistors meet. This works if the resistor is supposed to be
>between constant voltages (e.g. between Vcc and the virtual ground
>at the inverting input of an opamp).

This thread sounds interesting; can anyone point me to a good text on quiet, 
stable PSU design? On a similar note, how good is the Digisound-80 PSU 
design, in terms of noise and stability? My current system plan is currently 
based around this PSU.

Thanks in advance

--
Matthew S. Padden
Computer Music Research Group
Music Dept.
Huddersfield University
Queensgate
Huddersfield
England HD1 3DH
p: +44 1484 422288 x2402
f: +44 1484 472656
e: m.s.padden at hud.ac.uk