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difference between voltage drop and bias on control wire

  • hse_me@yahoo.com
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11 Aug 2019 12:09 #32733 by hse_me@yahoo.com
Hello everyone .

i am still in section 3 materials and found some confusion to distinguish between voltage drop and bias on control wire . when i make my test when i can say its voltage drop not a bias ?

Thanks .
Ali

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  • Chad
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11 Aug 2019 21:03 - 12 Aug 2019 01:56 #32739 by Chad
A voltage drop is when the voltage that reaches the load is less than the source voltage. This can happen due to bad connections and corroded wires. The bad connection, or corrosion, acts like a resistor.



Bias voltage is a voltage sent out on a circuit, for fault detection purposes. It is passed through a very high resistor. It is, for lack of better wording, an INTENTIONAL voltage drop that the computer uses. When a circuit is OPEN (disconnected/broken wire), the voltage will be the same as the source of the bias voltage. But, when the circuit is CLOSED (connected/circuitry intact) the voltage will be pulled up, or down.


"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
Last edit: 12 Aug 2019 01:56 by Chad.
The following user(s) said Thank You: ScannerDanner, Noah

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