Αποτελέσματα Αναζήτησης
DigiKey's LED series resistor calculator uses supply voltage, forward voltage, and forward current values to help you identify the correct series resistor.
This calculator will help you determine the value of the resistor to add in series with the LEDs to limit the current. Just input the indicated values and press the "Calculate" button. As a bonus, it will also calculate the power consumed by each LED.
LEDs are usually operated via a series resistor. The series resistor must be dimensioned in such a way that the supply voltage and the maximum permissible current are not exceeded. You can calculate the size of the resistor on this page.
3 Οκτ 2024 · Calculation Formula. The LED resistor value is determined using Ohm's law, with the formula: \[ R = \frac{V_s - V_l}{I_L} \] where: \(R\) is the resistance (in ohms, Ω), \(V_s\) is the voltage of the source (in volts, V), \(V_l\) is the voltage drop across the LED (in volts, V), \(I_L\) is the current through the LED (in amperes, A). Example ...
28 Σεπ 2024 · This calculator finds the series resistor value to be used with an LED and a +12 Volt supply. This resistor limits current into the diode and is required for proper operation. It also provides the power dissipation in the resistor – an important number for resistor selection.
This LED calculator will help you calculate the resistor values you will need when designing a series/parallel LED array circuit.
Farnell's LED series resistor calculator and formula allow you to calculate the proper resistance for your LED devices based on your existing specifications. LED Series Resistor Calculator (Vs)
