"Guv Bob" wrote in message m...
"Spehro Pefhany" wrote in message ...
On Sun, 25 Aug 2013 23:29:54 -0700, "Guv Bob"
wrote:
"Guv Bob" wrote in message m...
Names can be confusing, so here's what I'm doing....
http://img43.imageshack.us/img43/7434/wvm.gif
When 12VDC is applied to the input, I need a 12VDC output for 5 seconds. Then output will go back off and stay off until the input goes to zero. Then cycle starts again.
Current for both legs is in the 10-50ma range.
A simple on-delay timer would work but I'm having trouble finding one with NC contacts. Tons of stuff $100+, but for this application, it has to be under $20.
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Thanks for all the tips and good info. I had wanted to put something together from components but my brain is too far behind these days. I'm going to give this a shot and hopefully I'm not picking the wrong one. It's $5 at Frys...
Velleman MK111
http://www.vellemanusa.com/downloads...nual_mk111.pdf
It can be modified to do what you say you want.
- Hmmmm....... in that case, forget the electronics! ;O)
http://www.vellemanusa.com/downloads...nual_mk111.pdf
If I disconnect pin 7, would that make it a one-shot pulse?