Our DIO Calculator simplifies electronics design by determining diode forward voltage drop, series resistor values, and current for various diode types, including LEDs. Quickly calculate required components for your circuits and ensure proper operation. Perfect for hobbyists and engineers for precise component selection.
Formula:
To determine the series resistor (RS) and power dissipation (PR) for a diode in a circuit, use the following formulas:
- Voltage across the series resistor (VR):
VR = VS - VF - Required Series Resistor (RS):
RS = VR / IF - Resistor Power Dissipation (PR):
PR = VR * IF
Where:
VS = Source Voltage (Volts)
VF = Diode Forward Voltage (Volts)
IF = Desired Forward Current (Amperes)
VR = Voltage across the series resistor (Volts)