Welcome to LPF! Looking for a laser pointer? Click here for the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.









Green Laser Pointers Blue Laser Pointers Red Laser Pointers
Yellow Laser Pointers Violet Laser Pointers Orange Laser Pointers
Laser Pointers by Power - 1 Watt+ Laser Pointers by Power - 500mW+ Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes


























Go Back   Laser Pointer Forums > Lasers > Drivers, Test-load, Power Supply, & Batteries

LPF Database of Laser Pointer Companies






Reply
 
LinkBack Thread Tools Display Modes
Old 05-11-2014, 09:21 PM #33
benmwv's Avatar
Class 3R Laser
 
Join Date: Sep 2010
Location: wv
Posts: 1,389
Rep Power: 152
benmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond repute
benmwv benmwv is offline
Class 3R Laser
benmwv's Avatar
 
Join Date: Sep 2010
Location: wv
Posts: 1,389
Rep Power: 152
benmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond reputebenmwv has a reputation beyond repute
Default Re: How laser diode drivers work; An Explanatory Thread

I have an lt3083 board designed, and i have blank pcbs for it in a box somewhere. I never got around to testing it because they are big, inefficient, and expensive. They have a cool adjustment mechanism, but they aren't really good for a laser driver unless you are planning a labby.

If you are interested in the lt3083 I could try to find the pcbs and mail you one, or at least email you the design so you can get pcbs made.


benmwv is offline   Reply With Quote








Old 05-13-2014, 03:27 PM #34
Class 1 Laser
 
Join Date: Jan 2012
Posts: 54
Rep Power: 6
tony1 is on a distinguished road
tony1 tony1 is offline
Class 1 Laser
 
Join Date: Jan 2012
Posts: 54
Rep Power: 6
tony1 is on a distinguished road
Default Re: How laser diode drivers work; An Explanatory Thread

rhd,
you have a good point there, I think it needs further discussion and verified .
tony1 is offline   Reply With Quote
Old 12-06-2014, 09:02 PM #35
Pman's Avatar
Class 3B Laser
 
Join Date: Nov 2012
Location: Rochester, NY
Posts: 4,333
Rep Power: 3419
Pman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond repute
Pman Pman is online now
Class 3B Laser
Pman's Avatar
 
Join Date: Nov 2012
Location: Rochester, NY
Posts: 4,333
Rep Power: 3419
Pman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond repute
Default Re: How laser diode drivers work; An Explanatory Thread

Realize this is old but nice write-up. I'm in Rochester, N.Y. by the way

Pete
__________________
I'm not strange, I'm limited edition!

*Jayrob Star Trek Phaser*
# of Lasers - ***
# of DTR/510 laser adapters *
# of eGo/510 mods **
# of Batteries - ***
Wavelengths - 405, 445, 447, 450, 455, 462, 464, 470, 473, 473+, <515, 515, 520, 532, 589, 635, 638, 650, 660, 685, 808, 830, 980
Projector - PD2
O-Like mini red/green to yellow module
Beam Expanders - Dragon Lasers 2x & 5x with universal adapters
LPM's - Modified AW TEC, Custom 6.8W+ Ophir
Datalogger - ARG
Chargers - Ultrafire WF139, (2) Xtar WP2, Nitecore i2, UM20, (3) i4, (2) D4 , Opus BTC-3400 V2.2
Phlatlights - Jayrob PT-54 green 1000lm maglight, PT-54 red project box build, (3) PT-54 red, (2) PT-54 orange (3) PT-121 red, (2) PT-121 blue, (1) PT-121 green project work in progress 5000lm (1) PT-121 green

Links:

**"Pen Laser Thread"**
"Post your pics of unique builds no-one else has"
"Make your way overspec $5 pen focusable"
"Share your inexpensive builds thread"
"Pman special"
Pman is online now   Reply With Quote
Old 05-18-2016, 06:05 PM #36
Junior Member
 
Join Date: May 2016
Posts: 1
Rep Power: 0
DalDames is on a distinguished road
DalDames DalDames is offline
Junior Member
 
Join Date: May 2016
Posts: 1
Rep Power: 0
DalDames is on a distinguished road
Default Re: How laser diode drivers work; An Explanatory Thread

Hi everyone..i am new here. As per my knowledge LM317 driver, the voltage just follows the IV curve of the diode, and will end up being whatever that particular diode drops at the current you've set it to. So if you set your current on a test load with the wrong voltage drop, it shouldn't matter.However, one scenario in which it WOULD change, would be if your driver didn't actually have enough input voltage to handle the laser diode's Vf + its own dropout, but DID have enough input voltage to handle the test load's drop + its own dropout. In this scenario, you'd find that the actual current once connected to a real laser diode, would be lower.

pcb assembly services

Last edited by DalDames; 06-09-2016 at 03:54 PM.
DalDames 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


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f67/how-laser-diode-drivers-work-explanatory-thread-71513.html
Posted By For Type Date
Rick's Personal Page This thread Refback 12-04-2015 05:53 AM
Linear driver - Lasers Wiki This thread Refback 06-03-2014 03:47 AM
LM317 Laser Driver-Wiki Finder This thread Refback 01-29-2014 08:12 AM
What exactly does a toroid do? | BudgetLightForum.com This thread Refback 12-28-2013 05:23 PM
Different types of drivers? | BudgetLightForum.com This thread Refback 06-04-2013 05:56 PM










Loading








Top 50 Laser Pointer Companies - Green Lasers Top 50 Laser Pointer Companies - Blue Lasers Top 50 Laser Pointer Companies - Red Lasers
Top 50 Laser Pointer Companies - Yellow Lasers Top 50 Laser Pointer Companies - Purple Lasers Top 50 Laser Pointer Companies - Orange Lasers
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes




Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 01:00 PM.


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