Search results

I have an IR diode which is case positive and this driver and its outer ring is case negative. I am making a portable with direct-press heatsink. Hmm.. now I'm not sure how to put it together... Should I isolate the driver's outer ring with some glue/epoxy/silicone? Anyone had this problem...

Hi, i've been thinking since I ever saw that LM317 based driver about why it is just not used as voltage regulator. It is used as current regulator and so are all I've ever seen. My question is why are there not any voltage regulators? Are there any drawbacks? I can think of resistivity of LD...

Hi, this is the diode from my old cd-rw burner. Does anyone know something about it? Where are the positive and negative pin? I'd guess the positive is the pin connected to the casing, but I'm not sure.

Hi, I've been looking around with not much luck trying to find some schematic for a driver which would have almost zero voltage drop. Using LM317 based driver will require power supply of at least 5V. However if I were to use one lion battery with 3.7 or two 1.5 batteries, I am out of luck here...

Hi everyone. First - I am new here and I am new to lasers, however I learned a lot from this project and I think it might be benefitial to some of you so I share it here. I got a new 8$ 5 mW green laser from DX and because I'm quite curious, I decided to open it. Well, no surprise - case, 808nm...