Daylight Resistor #221
Description
Hi,
I think the schematic of the daylight has wrong resistance.
There are 6 leds (3V @ 60mA) and 2 x 100 ohm resistors in series, powered by 24V.
If i make calculation:
V 24V (Power)
Vf 3V ( Forward voltage)
If 60mA = 0.06A (Forward current)
6 Leds
Total Vf = 6 x 3V = 18V
Vr = 24V - 18V = 6V
R = Vr / If = 6V / 0.06A = 100 Ohm (Instead of 2x 100 Ohm = 200 Ohm)
@ 200 Ohm Led current will be 30mA, not 60.
Or am i wrong?