Recent content by jawsykilla

Hi Toke, that is what I presumed but I have had diodes before that emit a narrow beam directly from the diode? What lens/housing would you recommend I use for this particular Laser, I need to be able to mount my board into it. cheers, Jordan

Finally I got my laser driver working with an IR diode. I captured this image from my IR enabled camcorder. Jordan Norman's Photos | Facebook now what I'm wondering is why is the laser diode producing this shape and not a narrow beam like other diodes do? Cheers, Jordan

Thanks dasraiser I can't believe I could overlook that so easily. I was in an excited rush when building the circuit however :crackup: anyways now my pot does work and alters the current greatly. The minimum reading i get across the 1 ohm resistor is 0.10mV which I am told in this Dummy Load it...

Okay thank you Cyparagon. I've just tested my driver with a dummy load of 4 1n4001 diodes and a 1ohm resistor. Now testing V across all three diodes gave me a pd of about 2.99 volts. Then testing mV across the resistor gave me about 34.5mV. Are these values within the correct range? also my...

Ok thanks Toke, I'll check that out. Thanks for the info :) Cheers, Jordan

Okay I've just created another circuit, this time I've connected up some LEDs just for now in series so I can see if the circuit works. I turned it on and for some reason twisting the potentiometer does not affect the brightness of the LEDs. Should it...

I did not use a test/dummy load when i tried it last time as I got too excited and couldn't wait for anymore 1n4001s in the post. So i trusted abilities and plugged it in lmao. Bad choice that was. I think i'm going to stick to the circuit I want to build because I have all of the components...

Okay thanks. Ive just found some extra data for my diode. Apparently it has a 2.2v operating voltage and since it has a power output of 300mW doesn't that mean that the circuit will only need to provide roughly 140mA of current? If so then I should only use one 10 ohm resistor? can you verify...

Okay thanks for the swift reply. First off I'm not stupid enough to look directly into any powerful light source. I did use 3 different camera to see if the IR beam existed. I used a crappy webcam. A digital camera (photo). And an IR enabled video camera. Nothing appeared on any of them. I did...

Okay i purchased one of these laser diodes 808nm 300mW High Power Burning IR Laser Diode DIY Lab . I then created a basic TTL laser driver circuit using some veroboard, the required components and such. Now I tested the circuit with a few high power LEDs. It worked. I connected the laser diode...

Ok im about to test that also. I noticed that when i turn the pot nothing happens as regards to LED brightness. Is there a problem with this pot or what?

Okay so I have created a Daedel driver circuit for my laser diode which s currently an 808nM 300mW IR diode. Now before i tested my diode i tried some LEDs in its place. I connected 2 1.5v LEDs in series, thus drawing 3v the same as what my laser diode needs. Now the LEDs work absolutely fine...

All I know is that it was Laser Diode out of a dvd rewriter, it was the Red One because it scrapped the IR one from the drive. Anyways all of the pins are uninsulated.

How do I determine the +ve and -ve legs on my laser diode? Cheers, Jordan

Anyone?