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Re: Triac question
On 9/24/07, Stuart Meier <stuartm2007@xxxxxxx> wrote:
>
> I'm hoping an electronics whizz can help me...
>
> I need several "blocking diodes" for 240ac, but of course
strictly that
> doesn't exist. In essence, the job is to turn a light on in the middle
of
a
> corridor if the light at either end is on, but without the opposing
end
> coming on too, ends being independently switched. I could use some
blocking
> relays, but that would be =A38 each, and significant space. OK, I
could m=
ake
a
> small board for a PCB mounted one but is there a better option...
>
> Can I use some of the triac's I have knocking about, by wiring the
gate t=
o
> the input, perhaps via resistor. Resistor value?
If there is no other control of the middle lamp then you only need one
relay. I tried to do it as ASCII art but failed so here a diagram:
http://xs.to/xs.php?h=3Dxs319&d=3D07391&f=3Dlamp_switch.jpg
Nick.
[Non-text portions of this message have been removed]
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