Calculator - resistor for LED (basic)
 - Electronics calculators_files/led-resistor-basic.png)
Outputs
Rs:
500 Omh
ID:
20 mA
PRs:
0.2 W
Inputs
Supply voltage
Vs
V
Conductive voltage
Vd
V
Maximum current
ID max
mA
RS = (VS - VD) / ID max
ID = (VS - VD) / RS
PRS = (ID max) 2 * RS
ID = (VS - VD) / RS
PRS = (ID max) 2 * RS