- Apr 28, 2010
My A130 diode, running off a DIY DDL driver at 1A is definitely giving a pulsed output. I suspected it when moving the beam around quickly noticed a strobing dot. Now I've been bouncing it off a spirograph and it's unmistakable, the circle is divided into segments rather than continuous like my other lasers... any ideas why? I can't fathom it. Lowering the voltage to the driver seems to increase the off periods making the effect more pronounced, so not the voltage regulator going into thermal protection.