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Need a bit of help

 
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Alexander125
HG Master


Joined: 13 Jan 2009
Posts: 105
Location: Galati, Romania

PostPosted: Wed Jan 14, 2009 1:09 am    Post subject: Need a bit of help Reply with quote

I was trying to make some sort of levitating device to lift a Ping POng ball with a magnet, and I went across a very complicated sketch on google, that used an LM324 quad op-amp.
Does anyone know what it is the purpose of the IC??
And could you figure out a simpler circuit??
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