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- From: cyberman@toz.buffalo.ny.us (Cyberman)
- Newsgroups: sci.electronics
- Subject: Re: 0to24v to -12to+12v c
- Message-ID: <gate.as2ZTB1w165w@toz.buffalo.ny.us>
- Date: 10 Nov 92 01:24:56 GMT
- Lines: 24
- X-Maildoor: WaflineMail 1.00r
-
-
- 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!
- --- Blue Wave/QWK v2.10
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-