In my last post about a simple circuit:
+12V -- R1 -- LED1 -- LED2 -- LED3 -- ground
A user said:
...you should account for temperature changes and variation between parts. Not all parts (even of the same part number) will have the same Vf, even at the same temeprature, and your circuit design needs to be robust enough to account for that, not carefully tuned to the exact nominal behavior of a part type.
Practically speaking, using my simple circuit as an example, how does one account for temperature changes and variation between parts? Would simply using a 150Ω resistor in series with the three LEDs not work?
Edit: The circuit will be operating in temperatures of around -10°C to +150°C