## What is a bus voltage?

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Tags:
Linksys
I couldn't find any accurate and direct meaning/definition for a bus voltage, can you help me out in defining what it is and what it does. I'm working on some Linksys products and was meaning to see if I can use bus voltage with them.

Software/Hardware used:
Linksys

## Answer Wiki

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If you google bus voltage, you will get some hits that will explain what it is.
Here is a link to one of them that even has the exam answer/
http://forum.allaboutcircuits.com/showthread.php?t=20927

## Discuss This Question: 1 Reply

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• Voltage is the potential energy between two points. A bus is a path for transferring data I assume bus voltage is the measurement of potential energy measured at the beginning and end of the bus. Voltage is V=IR. With the bus voltage you can calculate the electrical current "I" assuming you know the resistance "R" of the bus. If you have I and R or V and I you can calculate P (Power) P =(I*I)R or P=IV With power you can compare apples to apples when calculating the electrical needs of your ciruits. We never talk about the Voltage of a Light Bulb, we always calculate Power in Watts. Add up the total Watts on a circuit and we know the total power requirements for the circuit. So if you want to compare the power requirements for your Lynksys bus with the bus of another device of another device, you would be able to compare apples to apples. Sorry I'm trying to remember back 16 years to my college electronics classes. I hope that helps.
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