Newsgroups: sci.electronics.misc
Subject: Re: Searching 0 to +10v triac trigger
References: <[email protected]> <[email protected]>
[email protected] writes:
> On Wed, 14 Apr 1999 03:09:49 +0200, "sokom"  wrote:
> >I am searching for the schematics of a circuit to trigger a triac,
> >controlled by the standard 0 to +10v. d.c. external signal.
> >It's just to build an incandescent light dimmer
>
> If you can use AC to power the lamp then try TEA1007 Chip and a Triac,
> as used on Vellerman Lamp Dimmer Kit (These kits are sold europe wide
> I believe)

That kit is a good example of such circuit and works nicely at lest
for 230V AC voltage. That kit can be also used with 110V and 24V AC
voltages (comes with components to do that and intructions to 
adapt it to different voltages. The product number for that
kit is Velleman K8003 and you can find information on it
at http://www.velleman.be/kits/k8003.htm

Some other dimmer circuits controllable with 0-10V voltage
http://www.hut.fi/~khautio/ps/dimmeri.ps (0-10V four channel dimmer pack)
http://www.lightprocessor.co.uk/downloads/mp2d.pdf (professional dimmer psck)
http://www.teatronics.com/ENG.htm (professional dimmer pack schemnatics)

And some general information on dimmers and some example circuits:
http://www.hut.fi/Misc/Electronics/docs/lights/lightdimmer.html

-- 
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web pages at http://www.hut.fi/Misc/Electronics/