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Re: Solid State Control of Neon Lights....




~ 
~ Lately, as I am designing eeprom chip driven circuits for all types of
~ complex effects, I've migrated over to P& B high current optocouplers.  They
~ are sturdy and their 40W rating seems to eliminate just about all of the
~ other messy stuff. It's not correct theoretically, but I've had no failures
~ over the past three years in both indoor and outdoor applications.

I have designed a transformer switching circuit using RatShack triacs,
optocoupler (part MOC???? - I forget, but the part is at the shack, designed
for switching triacs), driver transistors for the LED in the optoisolator,
and everything driven by a Basic Stamp controller from Parallax.  The nice
thing about the stamp (which is a PIC controller) is the ease at which one 
can program the part - just write some simple BASIC code, hook up to
a PC, and download into the stamps EEPROM.  There is also built-in
serial communications on the stamp, so the controls can originate
from a PC.  The programming software is free, and the stamps costs
around $21.00

- Bruce

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               Bruce A. Bowling
  Staff Scientist - Instrumentation and Controls
 The Continuous Electron Beam Accelerator Facility
    12000 Jefferson Ave - Newport News, VA 23602
                 (804) 249-7240
                bowling@cebaf.gov  
        http://devserve.cebaf.gov/~bowling
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