CNI 100mw laser and external power.

• Feb 22, 2009

• #1

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bangbox

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hi!

I have a PGL-III-A-532/5~130mW (running at 100mw)

i want some more power out of it, the first thing i did was to take it apart and twist the potmeter in the buttom of the "laser Casehouse" the amp meter did go from 275mA to 320mA so i guess it have more power now not shure how mutch.

next thing i have tried is to connect the battery poles to a AC/DC adapter 3 volt/1500mA   the beam was insane and the ampmeter shows up 1,1 amps! the laser casing is holding about 38-40 Celsius after 30 sek of power.  measured: 3.12V*1.1A= 3.432 Watt!!!!!  is this safe? how long wil the diode hold?

Anyone that have tried this?  

 

• Feb 22, 2009

• #2

FireMyLaser

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Not for long. You must use a regulated power supply! That AC/DC adapter may put out as much as 5 or even 9V!

 

• Feb 22, 2009

• #3

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laserfreak3d

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lol ferfect example on how to kill you laser

 

• Feb 22, 2009

• #4

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bangbox

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the power suppy is regulated

But is there no regulator in the laser electronics? there is someIC and other stuff there

 

• Feb 22, 2009

• #5

FireMyLaser

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But 3V is 3V. If the current was 320mA on 3V batteries, then the current should be the same IF you use a 3V adapter. Since it's 1,1A at "3V" it's clearly not regulated.

 

• Feb 22, 2009

• #6

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bangbox

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FireMyLaser said:

But 3V is 3V. If the current was 320mA on 3V batteries, then the current should be the same IF you use a 3V adapter. Since it's 1,1A at "3V" it's clearly not regulated.

Click to expand...

aha! wil try to make one of those regulators that come on youtube.
What is the max safe current to send to this laser?

 

• Feb 22, 2009

• #7

FireMyLaser

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I suspect 500mA but don't take my word for it. You don't need to make a regulator, find a reliable 3V psu and the regulator inside the laser will take care of the rest. Give it 3.0V, no more.

 

• Feb 28, 2009

• #8

GooeyGus

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yeah dont worry about the current going in, just make sure it's 3v. The batteries probably have like 3-4A (or more if it is lithium) of available current but the driver in the laser should limit that, you just make sure that the 3v is actually 3v

 

• Feb 28, 2009

• #9

Cyparagon

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550mA is what WL spec.'d their old CNIs at.

 

• Aug 30, 2011

• #10

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4uguyzz

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hi guyz , we are searching for good laser module manufacturing companies if anyone knew about any perfect distributors let me know
thank you

 

Last edited: Dec 22, 2012

• Aug 30, 2011

• #11

Bluefan

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You forgot you had caps lock on, and try adding some punctuation and proper grammar.

 

Last edited: Aug 30, 2011