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Pasto
Joined: 11 Jul 2006 Posts: 1
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Posted: Tue Jul 11, 2006 4:54 pm Post subject: Powerin Up Problem |
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Hi guys....
I have a question related to powering up a circuit I have ....
Actually it is the circuit of Vehicle tracking unit.... it is capable of Input voltage of 9 - 28 VDC...
My problem is that: the power source I have provides me with negative voltage ( or I how only the negative voltage available or reachable)... now my question is:
How can I power up my tracking unit using this negtive voltage source,,, what are the possible options that can be done??
thanks for ur help |
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vtech
Joined: 08 May 2006 Posts: 1264 Location: USA
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Posted: Wed Jul 12, 2006 9:10 am Post subject: |
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Your DC voltage source can either be used as a positive or negative source by simply reversing poles as long as there is one ground reference.
In other words, a negative supply measured from point A to B is simply positive when measured from B to A. So by reversing polarity you should be able to run your device-----unless I misunderstood your question. |
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