Re: Light bulb power control/dimmer


"Nobody" <nobody@xxxxxxxxxxx> wrote in message
news:pan.2007.11.16.21.28.25.395724@xxxxxxxxxxxxxx
On Fri, 16 Nov 2007 10:55:56 -0500, Tam/WB2TT wrote:

Remember, with cycle skipping the frequency changes. At 10 percent power
the
fequency would be 6 Hertz.

The flicker will be 12 Hertz (as opposed to 120Hz at full power). You
don't have to skip whole cycles; half-cycles will do. The polarity doesn't
matter for a resistive load.

But you can't see the 120 Hz component; at least I can't - for an
incandescent lamp.

Tam


.

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