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|01-04-2012, 03:14 AM||#1|
Join Date: Oct 2011
Posts: 47Rep Power: 0
So I shorted out the driver for a 532nm module I had when it came in contact with part of the host. Now I only get 30 or so mV through to the actual diode and other parts of the driver (have 3.7V going into it though). So I am fairly certain I need a replacement driver.... unfortunately, I cannot find out the current now :/
The module is this one (200mW 532nm Green Laser Module (3V 11.9mm) - Free Shipping - DealExtreme) but it's not going to be 200mW. The current they list is a complete lie. So what do you guys THINK would be a current that would work? My choices are the ones on Moh's site, so 100mA, 153mA, 200mA, 378mA, 428mA, etc...
And would W = V*I work here? It doesn't make much sense though since that would leave a 200mW/3.7V - 66.6mA result. Which seems too small to me.
|01-04-2012, 05:58 AM||#2|
Class 4 Laser
Join Date: Sep 2007
Posts: 9,047Rep Power: 3898
Re: Driver Current
They meant to say <200mW. Output powers in the ~100mW range will need at least a 500mW pump. These will need about 600mA. If it is the 250mA they claim, you'll only get something around 30-50mW.
A problem well stated is a problem half solved.
Last edited by Cyparagon; 01-04-2012 at 06:01 AM.