[sdiy] CE approval, was MOTM over time

[Paul Maddox]

Jay,

> I had to help get cerification on some PC sound cards in the US. Anything
> that has real digital in it can be considerably harder than straight
analog
> (low freq stuff < 10 mHz).

This is good news, I only have two processors running at 12Mhz in my
monowave...
Though future designs will be faster and bigger :-(

> To get certification you have to have 1 unit pass
> the test. In a lot of cases it was probably hand build, tweaked and the
PCB
> in production is different that what was tested.

this *IS* good news, but I guess you still have to pay for EACH test..

> Another issue is with UL in the US (forget what the Euro equivalent is). A
> lot of products would probably never make it to market if they didn't use
> wall warts or pre-made power supplies. The power supply people do the
> testing and can distribute the cost over hundreds of thoushands of units.
> The guy that is going to make something that sells small quanities
wouldn't
> be able to handle the PS design and cost of testing and then sell the
> product at a profit.

Ive bought PSUs that already conform to US and EU standards so I can avoid
this headache aswell.
They are also auto sensing :-)

Paul
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