Dr_Doggy
Well-Known Member
I got 2 laser diodes here both rated @ 300mW, now one says 2v, i don't know about the other(blu ray), but i have my driver circuit using the LM317 , but on the output I am reading 7v, and i can adjust the current to 42mA to drive the blu ray,
Now what about the 2v(IR) laser diode, can I use the same driver for it?
.....Here is schematic, I don't have C1 included, and my supply is a 9v
What modifications to this could i make to make it suitable for the IR?
...Now i think i know most of the theory... but doing a test run on the IR diode I had it running at 7V and turned it up to 500mA when i started getting some good light(IR), and the Diode isn't getting hot really, so whats wrong here? Maybe i shouldn't be trusting E-bay vendor data sheets?
Now what about the 2v(IR) laser diode, can I use the same driver for it?
.....Here is schematic, I don't have C1 included, and my supply is a 9v
What modifications to this could i make to make it suitable for the IR?
...Now i think i know most of the theory... but doing a test run on the IR diode I had it running at 7V and turned it up to 500mA when i started getting some good light(IR), and the Diode isn't getting hot really, so whats wrong here? Maybe i shouldn't be trusting E-bay vendor data sheets?