[time-nuts] Thunderbolt Supply

Magnus Danielson magnus at rubidium.dyndns.org
Mon Feb 14 19:06:39 UTC 2011


On 14/02/11 19:31, Larry McDavid wrote:
> I think you should look at the specifications for the noise-rejection
> capability of those three-terminal regulators. They are simple and
> inexpensive but not particularly good at noise rejection. Some of the
> noise from the switcher supply will pass through. Is it enough to cause
> a real problem? Unknown to me as yet.

I think the linear regulator is mainly to handle low frequency damping 
where as for higher frequencies capacitors and inductors is helpful.

They do not exclude themselves, but they may be a cheap and fairly 
effective in combination.

Cheers,
Magnus



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