Can an LED be used to drop a few volts (whatever the voltage drop of the particular LED is) in a circuit where the current may vary a little bit (but within the LED's Imax)?
For instance:
(10V supply)-------|>------(load never exceeds 10mA)-------(GND)
Does the LED still need a current limiting resistor if it's looking into a load that won't ever draw more than 10mA?
Will the LED still try to consume as much current as possible until it dies?
I'm guessing yes? Unless I find a way to limit/regulate a constant current?
For instance:
(10V supply)-------|>------(load never exceeds 10mA)-------(GND)
Does the LED still need a current limiting resistor if it's looking into a load that won't ever draw more than 10mA?
Will the LED still try to consume as much current as possible until it dies?
I'm guessing yes? Unless I find a way to limit/regulate a constant current?