Old 01-13-2013, 05:09 PM #1
neo64's Avatar
Junior Member
 
Join Date: Jan 2013
Location: Malta, EU
Posts: 5
Rep Power: 0
neo64 is on a distinguished road
neo64 neo64 is offline
Junior Member
neo64's Avatar
 
Join Date: Jan 2013
Location: Malta, EU
Posts: 5
Rep Power: 0
neo64 is on a distinguished road
Default Drivers

Hi everyone, newb in town

So I've owned a couple of lasers from DX (red @ 250mW and a green @ 150mW). At that time I didn't get into specifics like laser wavelength, current handling, module sizes etc..

This changed when I decided to build a laser of my own. After a short while of googling stuff, I realised that most of the hits were on this forum - and with good reason And after spending some time reading about you guys' work here at LPF, now I know where to ask for help!

I'm somewhat of an electronics enthusiast and have sound knowledge of components, power, and soldering

So I intend to build a 445nm laser. Bought a host from ebay and with it came a boost driver rated at 2A. After some reading here I found out that buck drivers would be a better solution to my use - nonetheless I wired up the boost driver to gain some practice. And I have some questions if you don't mind

Below is the driver in question... details can be found here:
Adjustable 2W 445nm/445nm blue laser driver booster circuit/ 2A/9*20mm | eBay



This is a more detailed image of the back where the power resistor is



And an image of the top of the PCB..



Now my question is this.. The boost driver claims to be current adjustable up to 2A. I couldn't test for currents up to 2A because my 1N4001's in the test load I had kept desoldering themselves with the heat buildup (didn't solder them onto a veroboard)
What I found out though, and what I'd appreciate some clarification about, is that the output current wasn't adjustable fully down to 0%. I estimated the output current to be adjustible only in the range of 70% to 100%

Is this true for all drivers or only boost drivers? Or is it due to this being a shoddy driver off ebay?
Don't worry, I intend to treat a 445nm with the respect it deserves by driving it from an X-drive or similar

Sorry for the long post and large photos, please let me know if I can improve my posting etiquette.. I'm a new member eager to learn


neo64 is offline   Reply With Quote


















Old 01-13-2013, 07:21 PM #2
neo64's Avatar
Junior Member
 
Join Date: Jan 2013
Location: Malta, EU
Posts: 5
Rep Power: 0
neo64 is on a distinguished road
neo64 neo64 is offline
Junior Member
neo64's Avatar
 
Join Date: Jan 2013
Location: Malta, EU
Posts: 5
Rep Power: 0
neo64 is on a distinguished road
Default Re: Drivers

did some further find outs, the driver is actually from O-Like

Adjustable 2W 445nm/445nm blue laser driver booster circuit/ 2A/ [OL-2WD] - $14.50 : Zen Cart!, The Art of E-commerce
neo64 is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 08:48 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC