Voltage Divider Calculator

Voltage Divider Diagram
Voltage Divider Vin R1 R2 Vout

Voltage Divider Calculator

What is a Voltage Divider Calculator?

A Voltage Divider Calculator is a tool that helps determine the output voltage in a voltage divider circuit based on the input voltage and resistor values. It's useful for designing and analyzing circuits where a specific fraction of the input voltage is needed.

The Formula

The formula for calculating the output voltage in a voltage divider is:

\[V_{out} = V_{in} \times \frac{R_2}{R_1 + R_2}\]

Where:

  • Vout is the output voltage
  • Vin is the input voltage
  • R1 is the resistance of the first resistor
  • R2 is the resistance of the second resistor

Voltage Divider Circuit

A basic voltage divider circuit consists of two resistors in series with the input voltage applied across both, and the output voltage taken from the middle point:

Vin R1 R2 Vout

This circuit is widely used in various electronic applications to reduce a voltage by a specific ratio. It's important to note that the current drawn from the output can affect the voltage division, so this simple model assumes a high-impedance load.