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4th February 2013, 08:15 PM
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#1 |
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diyAudio Member
Join Date: Aug 2004
Location: West Kilbride
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+&- 45VDC from 12-15VDC @25A output
Looking for help
As above I've never built or even looked at DC-DC converters, A lot of audio circuits though. How hard will this be? Can anyone point me in the direction of circuits, Or info on theory so I can learn 
Last edited by Graemedench; 4th February 2013 at 08:46 PM. Reason: Try to make it sound less "do it for me" |
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4th February 2013, 11:39 PM
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#2 |
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diyAudio Member
Join Date: Apr 2008
Location: Carlisle, England
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A DC-DC converter will be the most efficient way to convert.
That's quite a hefty current so care will need to be taken.
__________________
http://www.murtonpikesystems.co.uk PCBCAD50 pcb design software. |
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4th February 2013, 11:58 PM
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#3 |
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diyAudio Member
Join Date: Nov 2011
Location: UK
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Are you looking for +/-45V @ 25A ?
That'll require at least 200A from your 12V supply. |
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5th February 2013, 12:21 AM
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#4 | |
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diyAudio Member
Join Date: Jan 2013
Location: now in Suzhou, China
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Quote:
Several of the major IC companies make dc-to-dc boost chips - several have 'interactive' design guides on their website It is not hard for low current [say <2A] boosters - both using discrete and IC approaches [again, google is your friend!] |
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5th February 2013, 01:37 AM
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#6 |
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diyAudio Member
Join Date: Nov 2011
Location: UK
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Or just 8 in series.
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5th February 2013, 01:47 AM
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#8 |
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diyAudio Member
Join Date: Nov 2011
Location: UK
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Whatever, it's still a lot of power to source from a 12V supply.
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5th February 2013, 06:56 AM
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#9 |
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diyAudio Member
Join Date: Aug 2004
Location: West Kilbride
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Thanks chaps I'll look into the manufactures sites. Didn't think they'd be as helpful as that. I should have checked
I'll keep you uptodate with my plans |
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5th February 2013, 10:39 AM
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#10 | |
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diyAudio Member
Join Date: Dec 2012
Location: Virginia
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Quote:
__________________
"Epilepsy medications are a lot like girlfriends. Sometimes you just have to take what you can get." -- Dr. Mark Quigg |
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