If you are willing to pay more to design a good switching adapter, it can be
very small and still pass all regulations. I expected most of the switching
regulators today is very small, not true for the notebook? (I'm not in the
market and haven't notice about that)
C.H.Ling
> -----Original Message-----
>
> Why would they catch on fire here and not elsewhere in the world? :-)
>
> Ever wondered why the AC adapters on portable computers, particularly a
> few years ago, were huge and weighed a significant percentage of the
> weight of the computer? My brother designed portable computers and said
> that the rather different requirements for important world markets could
> not be met in one adapter without making it large and heavy. He ranted
> and raved a bit about this.
>
> Moose
>
> John Hermanson wrote:
>
> >No, AC adapter 3 exists, they were just never imported by
> Olympus America because they could not pass UL tests without
> catching on fire.
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