Wall wart question
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On Tuesday, 29 January 2019 17:09:04 UTC, Dave Plowman (News) wrote:
In article ,
R D S wrote:
And why do similar rated ones differ so much in bulk? Is this just a
build quality issue?
Older ones will have a transformer. Newer ones a SMPS - smaller and
lighter.
All wallwarts use a transformer.
Not all of them do. Some of the lower
power ones just use a capacitor dropper.
SMPSes just use a smaller one.
Wrong, as always.
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