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Voltage divider

Voltage divider circuit

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In electronics, a voltage divider (also known as a potential divider) is a simple linear circuit that produces an output voltage (Vout) that is a fraction of its input voltage (Vin). Voltage division refers to the partitioning of a voltage among the components of the divider.

The formula governing a voltage divider is similar to that for a current divider, but the ratio describing voltage division places the selected impedance in the numerator, unlike current division where it is the unselected components that enter the numerator. The

A simple example of a voltage divider consists of two resistors in series or a potentiometer. Alternatively Vout can be defined as a reference voltage, and may also be used as a signal attenuator at low frequencies:



As in the general case, R1 and R2 may be any combination of series/parallel resistors.


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