[sdiy] audio controlled light show

[Theo]

Most dimmer packs for theater use triacs to switch the lamps.
Probably a lot cheaper than using (solid-state) relays.

There was a circuit for a "theater" dimmer pack in Elektor a while back
(sorry don't have the issue handy)
For the intended theater use it was a bit on the flimsy side, only
500W/channel or so.
But for a audio disco show this Elektor circuit might give you all
inspiration you need ;)

Maybe try a search for "dimmer pack circuits" or something like that.
There are bound to be lots of examples on the web.

Hope this helps,
Theo


From: Brett, Bill <BJB at dolby.com>

> Greetings,
> I am building a light controller that responds to an audio input. I have
> figured out how I will do the audio signal to logic part of the circuit.
> Question... how do I turn on/off the 120 AC for the lights. I thought of
> using relays, but this will produce a slight lag between audio beat and
> light pulse. Of course this lag will be added to the lag of the light
> powering up. Maybe this lag is insignificant? Does anyone now of a
schematic
> that uses solid state to do this?
> Thanks
> -Bill
>