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Calculating load requirements
MonMotha:
TI has a free version of TINA (TINA-TI) on their website. Probably sufficient for your use. There's also LTSpice, which is what I usually use.
SavannahLion:
That's weird.... what happened to the last post?
SavannahLion:
Well :censored:
Dunno what happened and I'm in no mood to recreate the post so here's the picture again.
I think I have an improved version in the works.
I tried to finish up this circuit but I discovered that I lack the key RC combo to make the whole damn thing work. I also ran out of 10k resistors. Checked Metro Electronics and they want $7 for 200 resistors. ugh..... :-\
MonMotha:
Sorry I never got around to looking at this. I haven't had the time to actually determine if your circuit works, but at a quick glance, I wouldn't worry too much about the power consumption. Probably no more than a few dozen mA.
SavannahLion:
No biggie. While at work, I get so bored that I created a new version of this circuit and created two others that don't use a 555. They seem to work OK in the simulator (though if I don't use a 555. there's always a delay on switch open I can't quite resolve) Now if I can find the time to actually put a RW circuit together and see just how accurate my simulations are, I'll be gold.
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