[thanks]

Eeyore wrote:

thanks wrote:

Eeyore wrote:
thanks wrote:

If I have a 24 Volts DC
regulated stabilized output low
ripple but switching power supply

Can I use that for a microphone
preamplifier module which
requires 24VDC for operation?
Yes. It will work.

Or must it be linear or I will
damage the unit?
No and no.

Depending how well the mic pre was designed it may or may not benefit more or
less from a linear supply with even lower output noise. You omitted to mention
the actuall ripple and noise voltage ( and measuring bandwidth ) from the
switcher.

Graham


It's an order of magnitude
greater but still low?
the switching is 0.1% vs 0.01%
but that's still low anyway

The linear supplies I design have ~ 500uV of noise ( you can't really see any ripple
) in the audio band. How does that compare ?

Graham


yours are superior do you sell
them, if the noise floor is
unbearable I am thinking of
'switching'