Hey guys,
New here so hopefully this isn't a repost. I recently bought a 100mw green laser (diode and driver package) off eBay from china, and after receiving it I hooked it directly to a 3.3v supply for a computer PSU. After about 2-3mins of used the driver board was getting VERY hot, and I could already notice some 'flaring' of the beam point. Ongoing minimal use over the next 30mins ended up killing it completely.
Assuming that the driver required some current limiting that I didn't provide, I jumped on eBay and bought another one, which has arrived but Im apprehensive to power it up before asking someone in the know as to what kind of supply I need. I tried connecting an inline 10ohm 5W resistor to a variable voltage reg IC (set to 3V) but the laser wouldn't even initiate.
The link to the laser I have is here: 10mW 30mW 50mW 100mW 200mW 532nm Green DOT Laser Module With Driver Spring Wire | eBay
And heres a shot I took of the actual product:
https://dl.dropboxusercontent.com/u/61965732/2014-11-05%2019.31.30.jpg
Look forward to any ideas.
Cheers,
Wez.
New here so hopefully this isn't a repost. I recently bought a 100mw green laser (diode and driver package) off eBay from china, and after receiving it I hooked it directly to a 3.3v supply for a computer PSU. After about 2-3mins of used the driver board was getting VERY hot, and I could already notice some 'flaring' of the beam point. Ongoing minimal use over the next 30mins ended up killing it completely.
Assuming that the driver required some current limiting that I didn't provide, I jumped on eBay and bought another one, which has arrived but Im apprehensive to power it up before asking someone in the know as to what kind of supply I need. I tried connecting an inline 10ohm 5W resistor to a variable voltage reg IC (set to 3V) but the laser wouldn't even initiate.
The link to the laser I have is here: 10mW 30mW 50mW 100mW 200mW 532nm Green DOT Laser Module With Driver Spring Wire | eBay
And heres a shot I took of the actual product:
https://dl.dropboxusercontent.com/u/61965732/2014-11-05%2019.31.30.jpg
Look forward to any ideas.
Cheers,
Wez.
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