On Sunday, January 5, 2014 6:44:24 PM UTC, Tim Watts wrote:

Not understanding SMPSUs - do they provide complete magnetic isolation like
a simple transformer does?

Yes, assuming you mean ones with external power output


TRhe beuauty of a simple linera PSU for home build projects is it's hard to
get it wrong, provided you keep the mains wiring nicely separated from the
ELV side.

They're quick, easy & simple. SMPSUs arent.


NT