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22-07-2008, 19:36
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#1 | | Regional Co-ordinator
Join Date: Sep 2005 Location: Midlothian, Scotland Drives: Saab 9000 2.3T
Posts: 6,270
| Anyone know where I can get a 15V DC supply from?
I need to get a 15V supply to power my ECU to map it. Anyone have any suggestions as to where said 15V could be sourced from around the home, ie household appliances, etc? Or do I need the sort of thing you used in physics that gave a variable supply?
All I can find is 12V 
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22-07-2008, 19:40
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#2 | | MIGClub Member
Join Date: Sep 2004 Location: Bristol :) Drives: astra cdx ecodog
Posts: 4,394
| Re: Anyone know where I can get a 15V DC supply from?
laptop power supply? infact maplins sell an incar one that outputs anything from 15-24v for £20
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22-07-2008, 19:50
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#3 | | Regional Co-ordinator
Join Date: Sep 2005 Location: Midlothian, Scotland Drives: Saab 9000 2.3T
Posts: 6,270
| Re: Anyone know where I can get a 15V DC supply from?
Quote:
Originally Posted by Jasovanooo  laptop power supply? infact maplins sell an incar one that outputs anything from 15-24v for £20 | It needs to be from the mains aswell which I should have mentioned 
I'll have a looksee and see if I can steal a laptop power supply  | |
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22-07-2008, 19:59
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#4 | | Admin
Join Date: Jun 2000 Location: Hampshire, UK Drives: Vectra Derv Wagon
Posts: 27,299
| Re: Anyone know where I can get a 15V DC supply from?
have a look at maplins for a 240v supply that drops to a selection of voltages.
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22-07-2008, 20:13
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#5 | | MIGWeb User
Join Date: Jan 2006 Location: Nottingham/sheffield Drives: Bikes
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| Re: Anyone know where I can get a 15V DC supply from?
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22-07-2008, 20:13
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#6 | | MIGClub Member
Join Date: Sep 2001 Location: Northants Drives: Vectra SRI
Posts: 17,201
| Re: Anyone know where I can get a 15V DC supply from?
Best to grab a 13.8V 5A supply from Maplin.
13.8V is the normal operating voltage for a running vehicle (its a pretty standard voltage for designers to base their automotive designs on).
XM22Y should do you nicely at just under £20 http://www.maplin.co.uk/Module.aspx?...13.8v&doy=22m7 | |
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22-07-2008, 20:21
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#7 | | Regional Co-ordinator
Join Date: Sep 2005 Location: Midlothian, Scotland Drives: Saab 9000 2.3T
Posts: 6,270
| Re: Anyone know where I can get a 15V DC supply from?
Quote:
Originally Posted by willy b | I really need it ASAP so I'm afraid not Quote:
Originally Posted by Dom Best to grab a 13.8V 5A supply from Maplin.
13.8V is the normal operating voltage for a running vehicle (its a pretty standard voltage for designers to base their automotive designs on).
XM22Y should do you nicely at just under £20 http://www.maplin.co.uk/Module.aspx?...13.8v&doy=22m7 | Cheers Dom, I'll try and get up tomorrow and buy one. I was kind of hoping there'd be something around the house I could sabotage   | |
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22-07-2008, 20:26
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#8 | | MIGWeb Moderator
Join Date: Mar 2001 Location: C:/UK/Devon/Torquay Drives: Leon Cupra 20VT
Posts: 42,899
| Re: Anyone know where I can get a 15V DC supply from?
Isn't the pc power supply 12v? | |
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22-07-2008, 20:27
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#9 | | MIGClub Member
Join Date: Sep 2004 Location: Bristol :) Drives: astra cdx ecodog
Posts: 4,394
| Re: Anyone know where I can get a 15V DC supply from?
pc ones are yes laptops vary some are quite high | |
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22-07-2008, 20:28
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#10 | | Regional Co-ordinator
Join Date: Sep 2005 Location: Midlothian, Scotland Drives: Saab 9000 2.3T
Posts: 6,270
| Re: Anyone know where I can get a 15V DC supply from?
Quote:
Originally Posted by LEE69 Isn't the pc power supply 12v? | No idea
I'm told that 12V doesn't work on the ECU though | |
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22-07-2008, 21:03
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#11 | | MIGWeb User
Join Date: Jul 2002 Location: Derbyshire Drives: Nova 1.6 16v / VXR
Posts: 2,414
| Re: Anyone know where I can get a 15V DC supply from?
12v must work - the car can only supply ~12v from the battery until it is running! Without this the ECU couldn't be 'on' to monitor the crank signal.
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22-07-2008, 21:08
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#12 | | Regional Co-ordinator
Join Date: Sep 2005 Location: Midlothian, Scotland Drives: Saab 9000 2.3T
Posts: 6,270
| Re: Anyone know where I can get a 15V DC supply from?
Quote:
Originally Posted by phazer 12v must work - the car can only supply ~12v from the battery until it is running! Without this the ECU couldn't be 'on' to monitor the crank signal. | I guess so, but maybe to do the remapping part it needs that higher voltage 
I know that when others tried it 12V never worked. | |
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23-07-2008, 08:32
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#13 | | MIGClub Member
Join Date: Sep 2001 Location: Northants Drives: Vectra SRI
Posts: 17,201
| Re: Anyone know where I can get a 15V DC supply from?
They probably tried it on a low power AC adaptor not intended for powering a ECU.
If you have a decent high current (>5 amps) power supply then it should be fine. | |
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