Dwayne Reid wrote:
> I'm not sure if you are speaking "tongue in cheek" but I'm not aware of
> any lamp dimmers intended for home use that don't use phase control. Can
> you point me towards home-style lamp dimmers that don't use phase
> control?

I don't know about home use.  I wasn't referring to existing units in
service either.  Do any of those have CE approval?  What is the upper power
limit?  The industrial AC power designs I've been envolved with in the last
few years have all dealt with high speed switching in there somewhere.  Some
have even dealt with power factor correction.  The EU maximum power where
you can ignore power factor is well under 100W, something like 70 if I
remember right.  If so, a 100W phase controlled dimmed light bulb would
definitely be verboten.

Maybe consumer use phase controlled lamp dimmers are still common here, but
their days must be numbered even so.  Florescent lamps often don't deal well
with these kinds of dimmers, or the dimmers don't deal well with the
ballasts.  That and the conductive and radiated emissions and I wouldn't
want to invest in new products like that.


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