Potential Divider

Basics:

  • This component can be used to reduce the voltage being supplied.
  • It can be used to protect sensitive components, or even to supply a reference voltage to a comparator.
  • It consists of merely two resistors:
    • It works best when these two resistors are both in the kilo-ohm range.
  • The formula used to determine the output voltage is as follows:
    • Potential Divider (EQ)
    • This also happens to be the formula for working out the voltage across resistor R2.

Circuit Diagram:

Potential Divider

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