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Old 01-18-2012, 04:21 PM   #11
Clementine
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Wow that is pretty impressive 555 are pretty tough ICs. I'm guessing that you were trying to drive a SSR or relay directly from the 555. If you don't have a driver transistor and you try to drive a bigger load it could be thought of trying to pull a freight train with a moped, AKA smoke comes out of Moped.

Clem



 
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Old 01-18-2012, 05:44 PM   #12
WormBoy
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Quote:
Originally Posted by kklowell View Post
Well, my first attempt at making my PWM resulted in releasing the magic smoke from the IC. We all know that once the smoke is out it's all over so it'll be off to RS from another one tomorrow for attempt number two.
Been there done that, LOL (at recalling my smoke, not laughing at you). Good luck!


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Old 01-18-2012, 06:00 PM   #13
nvr2low
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Quote:
Originally Posted by kklowell View Post
Yep...but I was distracted at that moment by the uh, uh, marching band...yeah, that's it, marching band...passing through the room at just that moment and didn't catch all the smoke. I thought I might have, but my wife was across the room and mentioned she could smell smoke, so I knew some had escaped.
This incident, by the way, is just further proof that it is not some invisible mystical electron that makes electronic things work, but rather plain old ordinary smoke. I'm surprised more people don't know this, after all, it is so easily proved. Let the smoke out...it doesn't work anymore.
AS an EE i can tell you your problem is you forgot the mirror to reflect the smoke back into the IC. had you had that none of your smoke would have escaped!

 
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Old 01-18-2012, 07:52 PM   #14
Homercidal
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Tell me you at least got your 3 wishes!

 
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Old 01-18-2012, 08:01 PM   #15
GilaMinumBeer
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Originally Posted by Homercidal View Post
Tell me you at least got your 3 wishes!
Yes. GOD damned it, he was left with a pile of sh!t, and got fvcked.

I do believe that is the order in which his requests came.



 
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