23 Feb
2009
23 Feb
'09
12:24 p.m.
Chuck Guzis wrote:
On 23 Feb 2009 at 12:51, bfranchuk at jetnet.ab.ca wrote:
As well as the switchers in low-voltage halogen lamp fixtures. Apparently the
savings in iron and copper winding has made them more economic for some years now.
I suspect there are a few (large) ones humming
away, since I heard that they stopped
DC power only a few years ago.
Seriously, how different (in terms of number and type of components)
is the circuitry that goes into the base of a cheap compact
fluorescent lamp from that found in a small switcher? It might be
that a better economy of scale is possible with a SMPSU wall-wart--
and you gain the advantage of 120/220v operation without changing the
design.