Hi there,
I built a DDL driver for a blu-ray diode (803T) and I tested with a dummy load. Everything seemed to be working just fine, however when I connected my diode it did not turn on. I made sure to short the capacitor to discharge it before connecting the diode, but that didn't seem to have any effect. It never turned on.
As you can can see in the image below, the driver works as intended. I don't have a picture of it set at max current but its max is around 115mA.
http://i46.tinypic.com/p1vrk.jpg
I used an LM317 voltage regulator, 10Ohm resistor,100Ohm potentiometer, 1N4001 diode and a 10uF capacitor.
I built a DDL driver for a blu-ray diode (803T) and I tested with a dummy load. Everything seemed to be working just fine, however when I connected my diode it did not turn on. I made sure to short the capacitor to discharge it before connecting the diode, but that didn't seem to have any effect. It never turned on.
As you can can see in the image below, the driver works as intended. I don't have a picture of it set at max current but its max is around 115mA.
http://i46.tinypic.com/p1vrk.jpg
I used an LM317 voltage regulator, 10Ohm resistor,100Ohm potentiometer, 1N4001 diode and a 10uF capacitor.
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