Calculator - resistor for LED (advanced)
 - Electronics calculators_files/led-resistor-advanced.png)
Outputs
Rs:
230 Omh
ID:
17 mA
PRs:
0.092 W
Inputs
Supply voltage
Vs
V
Supply voltage max
Vsmax
V
Conductive voltage
Vd
V
Number of LEDs in series
N
Maximum current
ID max
mA
RS = ( VS max - (VD * N)) / ID max
ID = (VS - (VD * N)) / RS
PRS = (ID max) 2 * RS
ID = (VS - (VD * N)) / RS
PRS = (ID max) 2 * RS