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I don't have any 1N400x diodes on hand... I do have several white LED's though. Now I'm not sure what the forward voltage curves for the LED's are exactly, but when I ran 20mA through one it was at about 3V.
3V is about where an LPC-815 tops out according to charts I've seen...
would it make sense at all for me to use an array of 5 of these LED's in parallel (and one 1Ohm resistor in series) as my test load?
also, suppose I did have the regular diodes. How do I figure out how many of them to use? The LD's Vf ranges from about 1.9 to 3.2. I'm aiming for whatever point I expect the diode's voltage drop to be at?
3V is about where an LPC-815 tops out according to charts I've seen...
would it make sense at all for me to use an array of 5 of these LED's in parallel (and one 1Ohm resistor in series) as my test load?
also, suppose I did have the regular diodes. How do I figure out how many of them to use? The LD's Vf ranges from about 1.9 to 3.2. I'm aiming for whatever point I expect the diode's voltage drop to be at?