Re: Controlling Holiday Lights

[sylvan butler <ZsdbUse1+noZs_0610@xxxxxxxxxxxxxxxxxxxxx>]

On Mon, 30 Oct 2006 09:50:39 -0500, Marc_F_Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx> wrote:
> There are at least three possible explanations for his claim that he can
> control TRIAC dimming with a 1000hz signal not synchronized to the zero
> crossing but none that I can divine that support the claim of actually
> deterministically providing many different dim levels without flicker.

I don't know your technical training, but evidently the breadth of that
training is sorely lacking.

> 1) His actual trigger (control) signal has a significant component of 60hz AC
> noise ("hum") and so is in fact inadvertently synchronized to the AC line

Nope.  (And I cannot imagine a way that would actually ever work.  ;)

> 2) His dimmer circuit skips entire half-cycles. This would happen if his

Nope.

> 3) The dimmer is in his head and hasn't been instantiated.

Nope.

sdb

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