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snufkin
Joined: Apr 06, 2007 Posts: 57 Location: the world
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Posted: Wed Aug 15, 2007 6:44 am Post subject:
another Power supply question |
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hi guys im building a desk top / floor top style unit that will contain the penfold pitch to cv unit and my sn voice
i have no power supply knowledge whats the best way ?
the sn is +/-15V and +5V
and the penfold is +/-12v i think
is there a site that explaines this stuff ?
sorry to be a bother
Chris |
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Mikmo
Joined: Dec 01, 2005 Posts: 150 Location: Copenhagen - Denmark
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Posted: Wed Aug 15, 2007 1:36 pm Post subject:
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Find a used power one 15 V bipolar powersupply (often sold on eBay), use voltage regulators and generous amounts of bypass capacitors to reduce the +/- 15 to +/- 12 _________________ Stay Cool
Mikael
http://www.mikmo.dk |
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snufkin
Joined: Apr 06, 2007 Posts: 57 Location: the world
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Mikmo
Joined: Dec 01, 2005 Posts: 150 Location: Copenhagen - Denmark
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Posted: Fri Aug 17, 2007 3:03 am Post subject:
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You could probably use the 15 volt PAIA supply. You would still need to regulate the +/- 15 volts down to +/- 12 to power the enfold unit. Or you could buy one of each which would most likely be overkill.
The 15 volt edition delivers 200mA you should check the max. power consumption of all the devices you want to power to see if this is enough. _________________ Stay Cool
Mikael
http://www.mikmo.dk |
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snufkin
Joined: Apr 06, 2007 Posts: 57 Location: the world
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Posted: Fri Aug 17, 2007 6:02 am Post subject:
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cool
i just need to red up on this |
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snufkin
Joined: Apr 06, 2007 Posts: 57 Location: the world
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Posted: Thu Aug 23, 2007 6:11 am Post subject:
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hey uk peeps
where can i get a UK bipolar 15v power supply
i have searched
rapid
greenweld
maplins
where now? im stuck
thanks for your patience |
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snufkin
Joined: Apr 06, 2007 Posts: 57 Location: the world
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EdisonRex
Site Admin
Joined: Mar 07, 2007 Posts: 4579 Location: London, UK
Audio files: 172
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Posted: Thu Aug 23, 2007 8:30 am Post subject:
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that's only half of what you want. Hold on I'll go look on RS components. _________________ Garret: It's so retro.
EGM: What does retro mean to you?
Parker: Like, old and outdated.
Home,My Studio,and another view |
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EdisonRex
Site Admin
Joined: Mar 07, 2007 Posts: 4579 Location: London, UK
Audio files: 172
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Posted: Thu Aug 23, 2007 8:34 am Post subject:
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yes, you can get them at RS components. Because of their ungodly long urls from their site, it's actually shorter to direct you:
http://rswww.com
Blue "Electronics and Power" - select Transformers
you want chassis mount transformers. I found a nice dual 15V toroidal for 9 quid, for example. Part number 278-6992 _________________ Garret: It's so retro.
EGM: What does retro mean to you?
Parker: Like, old and outdated.
Home,My Studio,and another view |
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State Machine
Janitor
Joined: Apr 17, 2006 Posts: 2809 Location: New York
Audio files: 24
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Posted: Thu Aug 23, 2007 10:24 am Post subject:
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Quote: | the sn is +/-15V and +5V |
If you purchased the SN Voice PCB, you will not need the external +5VDC . I had added a 78L05 regulator IC on board. If you did not and built it from the original schematics, , it's easy enough to add this regulator. It saves you from needing another supply.
Bill |
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snufkin
Joined: Apr 06, 2007 Posts: 57 Location: the world
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Posted: Thu Aug 23, 2007 1:05 pm Post subject:
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i got the board from you (thanks) and im nearly done
up till now ive been ok on my own for most knowledge but im kind of a bit weary of power supplies and realy need to find out how SDIY peolpe do it
i dont know where to start
or how to go about powering mutiple modules |
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EdisonRex
Site Admin
Joined: Mar 07, 2007 Posts: 4579 Location: London, UK
Audio files: 172
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Posted: Thu Aug 23, 2007 1:17 pm Post subject:
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snufkin wrote: | i got the board from you (thanks) and im nearly done
up till now ive been ok on my own for most knowledge but im kind of a bit weary of power supplies and realy need to find out how SDIY peolpe do it
i dont know where to start
or how to go about powering mutiple modules |
You know, Thomas Henry just published a great book, and he's got a fine PSU schematic in it. The power supply should be one of the more simple things you build. A rectifier, a couple of regulators, and a lot of capacitors, basically.
Powering multiple modules is pretty easy too. Conventional wisdom says to wire each module directly to the PSU. Less noisy that way. _________________ Garret: It's so retro.
EGM: What does retro mean to you?
Parker: Like, old and outdated.
Home,My Studio,and another view |
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State Machine
Janitor
Joined: Apr 17, 2006 Posts: 2809 Location: New York
Audio files: 24
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Posted: Thu Aug 23, 2007 2:59 pm Post subject:
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Quote: | Conventional wisdom says to wire each module directly to the PSU. Less noisy that way. |
Yes, and using those handy power distribution circuit boards really helps to make really professional looking power networks as well.
The Blacet board is :
PSCONN2 Connector Board
It can be found here:
http://blacet.com/misc.html
You might also want to check Blacets power supply. It's a linear split 15 volt unit with about 500 ma per rail I believe.
Thomas Henry's new VCO Chip handbook has the split 15 volt supply circuit with the added bonus of having a 10 step, 1V/Step, calibrator built in and a variable calibrator. Nice for testing VCO's, VCF's, etc ...
Bill |
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elektro80
Site Admin
Joined: Mar 25, 2003 Posts: 21959 Location: Norway
Audio files: 14
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State Machine
Janitor
Joined: Apr 17, 2006 Posts: 2809 Location: New York
Audio files: 24
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Posted: Thu Aug 23, 2007 4:28 pm Post subject:
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Quote: | nd then we have the Oakley powerdistro board: |
Dam !!! Yes, this is the link you sent me on a PM .... Great distro board !!!!!
I knew I forgot something .........
Bill |
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