Hi Ron,
I've been playing with the LTC3783 on Spice and have not been successful. My 4 10watt LEDs run at 800-900ma and have a voltage drop of ~12.5 - 13.5 and I'm trying to put them in series, so I'm trying to run the 3783 in constant current mode, but can't seem to get to the 800 ma mark or above the 55 volt mark. Would mind giving me a hand with designing this thing, Please?
Also, I recently got a LCR Multimeter and of course, started playing with it, mostly measuring the inductors I have salvaged. An interesting thing I noticed on one inductor that had 3 separate windings, each of 29uh were still 29uh when paralleled, but when seriesed, I measured close to 300uh. I think I understand the paralleled winding staying at 29, that would be the same number of turns, but equal to having a larger diameter wire, but the seriesed turns appears to be multiplied by 3 squared.
Do inductors on the same core act the same a inductors individually wound in series and parallel