Article View: sci.electronics
Article #11585Re: 0to24v to -12to+12v c
From: Cyberman
Date: Wed, 11 Nov 1992 02:13
Date: Wed, 11 Nov 1992 02:13
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1546 bytes
Seaney@engr.wisc.edu was espousing about '0to24v to -12to+12v conve',
on [11-05-92 20:19] to All!
Se> I'm in a bind. The gradstudents before me goofed an purchased a 0 to
Se> 24 Volt Power Supply (15Amps) to drive a Power OpAmp. After close
Se> inspection it became apparent the the OpAMp needs -12to+12V. Since the
Se> OpAmp drives a motor we need as much current as possible.
Uh they didn't goof. You see +-12v is no different to the
motor as is 24 volts. You need to make a virtual ground
however. If you don't need reversability there shouldn't be
a problem. Another easy solution is 2 0-24v supplies. Be
sure the power suppies can SINK current! :)
Se> Is there a cheap way to convert 0 to 24 Volts (Floating) to -/+ 24
Se> Volts. The hard part seems to be the 15 Amp current requirement.
Ussually is when you get above 10amps. You could make your
own :)
Cyberman
... Life happens between 9am a 5pm for most poeple, no wonder there bored!
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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!emory!sol.ctr.columbia.edu!zaphod.mps.ohio-state.edu!ub!toz!cyberman From: cyberman@toz.buffalo.ny.us (Cyberman) Newsgroups: sci.electronics Subject: Re: 0to24v to -12to+12v c Message-ID: <gate.kPy2TB1w165w@toz.buffalo.ny.us> Date: 11 Nov 92 02:13:43 GMT Article-I.D.: toz.gate.kPy2TB1w165w Lines: 24 X-Maildoor: WaflineMail 1.00r