[sdiy] DC-DC Converters

[harrybissell]

They are switching power supplies. The little ones (charge pump type -
no inductors)
can supply only a small current.  Larger ones (with inductors) can
supply large currents.

Electrical noise is an issue - the high frequencies can get into VCOs
etc and cause strange
issues. But there is NO reason to dismiss them out of hand. You may need
to do some
experimenting, and possibly use more sophisticated power filtering
techniques...

Linear power supplies are inefficient, but very electrically quiet

H^) harry

Thomas Holley wrote:

> I am contemplating using a DC-DC converter for a simple +/- supply
> from a single small DC input. Are they noisy or quirky or have some
> hidden secret for their proper use? They seem simple but I never see
> them used. Thomas