Hello,
I am trying to make some back lighted numbers for my address, and i am using a solar charge with an 5252F IC. After putting everything together, the LEDS dont seem quite bright enough, so i want to change the value of the inductor to allow more current through.
Currently the board has a 41 microhenry inductor (yellow brown black silver).
I was reading this site:
http://artists.scitoys.com/three_volts
And it seems like currently, the inductor is outputting a value slightly higher than 50ma. I would like try several different values of inductors so that i can use the least amount of current to produce an acceptable amount of light, but i am unsure of how to calculate the current based on the inductor size.
Any help would be appreciated!
5252F datatsheet for reference
There is a formula on the data sheet, but it doenst seem to create sensibe results:
Pled = (2VIN/L)*10^-6
(2*1.5)/41)*10^-6 = .00000007
Even if that is amps, its not right... :-/