Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!sdd.hp.com!hplabs!hpcc05!hpcuhb!hpscdc!johnf
From: johnf@hpscdc.scd.hp.com (John Flowers)
Newsgroups: sci.electronics
Subject: Re: Light Dimmer
Message-ID: <5770031@hpscdc.scd.hp.com>
Date: 26 Nov 90 23:59:48 GMT
References: <2570007@hppad.HP.COM>
Organization: Hewlett-Packard, Santa Clara Div.
Lines: 16

A friend of mine works for Teatronics, Inc. Teatronics makes multi-channel
analog and digitally controlled dimmer "packs", from 4 to 24 channels.

In the models that carry a 2.4 kW load they have LARGE inductors on the
outputs of the TRIACS. These inductances are not measured in Henries but in
Seconds (of rise time). For a typical 2.4kW (20A) channel, the inductor is
spec'd to not be less than 500 uSeconds (micro).

I hope you can figure out what inductance this translates to for your
system.

******************************************************************
*        John "Microwaves are for cooking" Flowers    /_/ \/\/   *
*         johnf@scd.scd.com, hplabs!hpscdc!johnf     /           *
*   HP Santa Clara Division, Microwave Counters Manufacturing    *
******************************************************************