Voltage Divider Circuit Calculator - For LDR
A light-dependent resistor (LDR) connects to a voltage divider circuit, also known as a potential divider (PD), for proper circuit operation. There are two configurations of the circuit depending upon the position of the LDR within the potential divider network. You can have a configuration where the voltage output (Vout) increases as light increases or one where the voltage output decreases as light increases. The following calculators and their respective formulas show how both configurations work.
As light increases, Vout increases
Potential Divider Formula
Calculator
As light increases, Vout decreases
Potential Divider Formula
Calculator
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LDR Symbol