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5 Volts
#1
Looking for a 5 volt supply - anyone know of any circuit on the berlingo that I could tap into for this ?
[Image: 164569.png]
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#2
Most sensors have a 5 volt supply.

However it depends on the current your going to be drawing.
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#3
(06-07-2014, 11:23 AM)homeruk Wrote:  Most sensors have a 5 volt supply.

However it depends on the current your going to be drawing.
Current would be tiny, the device is a sensor itself and runs off a 4½v battery. (i'm presuming it will be happy at 5v)

What sensors under the bonnet will have easy access to their power supply?
[Image: 164569.png]
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#4
(06-07-2014, 11:32 AM)Noel Brig Wrote:  
(06-07-2014, 11:23 AM)homeruk Wrote:  Most sensors have a 5 volt supply.

However it depends on the current your going to be drawing.
Current would be tiny, the device is a sensor itself and runs off a 4½v battery. (i'm presuming it will be happy at 5v)

What sensors under the bonnet will have easy access to their power supply?

Perhaps something like this?

http://tinyurl.com/qeh3kr7

(An example - a number of types and suppliers are available)
[-] The following 2 users say Thank You to rupertbear for this post:
  • brodfather11, Noel Brig
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#5
I think the output of the USB charger adaptors you can buy that plug into cig lighter are usually 5V 1 amp or 5V 2 amp if thats any help.

Sent from my SM-N9005 using Tapatalk
[-] The following 1 user says Thank You to stuartinlancashire for this post:
  • Noel Brig
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#6
Just giving this thread a wee bump just in case anyone may know of a 5 volt source within the berlingo? failing that I may have to use one of the other suggestions.
[Image: 164569.png]
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#7
Maf sensor would probably be easiest to take supply from due to its location however I am unsure if it would be affected in any way.

Good mpg by the way
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#8
Out of interest what sort of sensor are you planning to run ? I'm being nosy to be honest and am curious as to what you are planning to do ......

For my own part I'd avoid sharing an existing sensor feed be it from a plug or the loom as every non original connection could possibly become a source of future troubles - water ingress, corrosion and high resistance. Perhaps there is a spare take off point you could utilise at source where the 12v is stepped down to 5 v this would require looking at the wiring diagram though.
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#9
Tap it off an ecu and potentially kill the ecu 5v driver ic, replacement ecu is 500+ quid, or do the intelligent thing and buy a regulated 12v - 5v dc-dc converter from map kind or find one on the net and build one from a schematic... Definately don't use the engine management 5v feed, helpful advice is good, but killing an engine ecu on the advice of guys who don't actually know if it's safe is not so good Sad
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#10
Why not buy something like this and take a 12v feed form something. Much safer as has been pointed out.

http://www.amazon.co.uk/Car-Power-Conver...B008VORADW
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