Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
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
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Tutorials, Help & Repairs



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 12-15-2009, 03:51 AM #1
spectral532's Avatar
Class 1M Laser
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
spectral532 spectral532 is offline
Class 1M Laser
spectral532's Avatar
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
Default Using a DealExtreme driver board to power a laser

Is it possible to use one of the led drivers from DealExtreme to power a laser? I am looking for cheap driver to power a red LOC or a PHR-803T from a single Li-ion battery.

In particular, I have been looking at SKU 7882 and SKU 15880. Both are capable of boosting voltage, and SKU 15880 seems to have boost/buck capability.

I'm not sure how good the regulation is on these though, maybe someone here has had experience using these boards?



Last edited by spectral532; 12-15-2009 at 04:08 AM.
spectral532 is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 12-15-2009, 07:39 AM #2
Class 1M Laser
 
Join Date: Sep 2008
Posts: 230
Rep Power: 9
LiveRock is on a distinguished road
LiveRock LiveRock is offline
Class 1M Laser
 
Join Date: Sep 2008
Posts: 230
Rep Power: 9
LiveRock is on a distinguished road
Default Re: Using a DealExtreme driver board to power a laser

I think you need a custom current driver...
LiveRock is offline   Reply With Quote
Old 12-15-2009, 12:55 PM #3
HIMNL9's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
HIMNL9 HIMNL9 is offline
Class 4 Laser
HIMNL9's Avatar
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
Default Re: Using a DealExtreme driver board to power a laser

Those drivers are multi-mode drivers (read the descriptions), that means they also control flashing and different currents ..... i don't think they are good for lasers (at least if you don't want all those functions intentionally )
__________________
High Impulse Multipath Neutron Laser (mark 9 ) (LOL)
Dare mo mita koto no nai, kaze, kumo, suna, umi ..... Kokoro no hate no doko ka eien ga kagayaku.
HIMNL9 is offline   Reply With Quote
Old 12-15-2009, 06:51 PM #4
spectral532's Avatar
Class 1M Laser
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
spectral532 spectral532 is offline
Class 1M Laser
spectral532's Avatar
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
Default Re: Using a DealExtreme driver board to power a laser

Quote:
Originally Posted by LiveRock View Post
I think you need a custom current driver...
I think the output on these drivers are adjustable. SKU 7882 has a potentiometer you can adjust. While I havent verified it yet, I think you can swap some sense resistors to set the current on SKU 15880

Quote:
Originally Posted by HIMNL9 View Post
Those drivers are multi-mode drivers (read the descriptions), that means they also control flashing and different currents ..... i don't think they are good for lasers (at least if you don't want all those functions intentionally )
I dont mind the multi-mode , most can be disabled by soldering a few jumpers on the board. Besides, having a low-medium-high power option would be nice.
spectral532 is offline   Reply With Quote
Old 01-06-2010, 08:57 PM #5
sightfx's Avatar
Class 2 Laser
 
Join Date: May 2009
Location: Montana USA /Alberta Canada
Posts: 480
Rep Power: 21
sightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud of
Send a message via Yahoo to sightfx
sightfx sightfx is offline
Class 2 Laser
sightfx's Avatar
 
Join Date: May 2009
Location: Montana USA /Alberta Canada
Posts: 480
Rep Power: 21
sightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud of
Send a message via Yahoo to sightfx
Default Re: Using a DealExtreme driver board to power a laser

There is a solder jumper you can make to make it a constant mode driver. I used this driver for a short time. I have powered a PHR with it but didn't try any modes.


Edit: It is adjustable.
__________________
FS: White Fusion Laser Mixing Kit
sightfx is offline   Reply With Quote
Old 01-06-2010, 09:07 PM #6
Class 3B Laser
 
Join Date: Jan 2009
Location: Spain, tarragona
Posts: 3,635
Rep Power: 219
Hallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond repute
Send a message via MSN to Hallucynogenyc
Hallucynogenyc Hallucynogenyc is offline
Class 3B Laser
 
Join Date: Jan 2009
Location: Spain, tarragona
Posts: 3,635
Rep Power: 219
Hallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond reputeHallucynogenyc has a reputation beyond repute
Send a message via MSN to Hallucynogenyc
Default Re: Using a DealExtreme driver board to power a laser

The second one is not adjustable, the first one is intended to output 3.5 amps. I would never try to power such a sensible component like a laser diode with this. Also, look at the comments, they say they take a huge ammount of power from batteries and that the efficiency is under 50%!
__________________
The difference between an ignorant and a wise is that the wise knows the limits of his knowledge while the ignorant ignores the limits of his ignorance.
Learn how to use Opera and tell me about your experience here!


Wicked Lasers Evolution Pro 130mW ------------------> Review
Rayfoss 150mW waterproof
Rayfoss 200mW focusable torch -----------------------> Review
Dealextreme 5mW true laser pointer
Dealextreme 50mW true laser pointer
Dealextreme 100mW true laser pointer
Laserlands 30mW disco laser --------------------------> Review
5mW pointers (many of them)
DX 200mW Red laser (Dilda) --------------------------> Review
120mW PHR custom build
200mW GGW custom build

Focalprice 7$ green&bluray laser goggles
Dealextreme tripod and clamp for laser holding -----> Review
DIY 3 motor Spirograph --------------------------------> Review
HLPM-2 laser power meter
Hallucynogenyc is offline   Reply With Quote
Old 01-07-2010, 02:19 AM #7
sightfx's Avatar
Class 2 Laser
 
Join Date: May 2009
Location: Montana USA /Alberta Canada
Posts: 480
Rep Power: 21
sightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud of
Send a message via Yahoo to sightfx
sightfx sightfx is offline
Class 2 Laser
sightfx's Avatar
 
Join Date: May 2009
Location: Montana USA /Alberta Canada
Posts: 480
Rep Power: 21
sightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud of
Send a message via Yahoo to sightfx
Default Re: Using a DealExtreme driver board to power a laser

I just pulled my SKU7882 off the shelf to test it again because it was about 9 months ago when I started experimented with it. with a 1.5V input it will draw 380ma from source and supply 80ma at 4.8V to the diode. That puts efficiency at 65% which literally sucks


cheers

Ryan
__________________
FS: White Fusion Laser Mixing Kit
sightfx is offline   Reply With Quote
Old 01-07-2010, 04:29 AM #8
spectral532's Avatar
Class 1M Laser
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
spectral532 spectral532 is offline
Class 1M Laser
spectral532's Avatar
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
Default Re: Using a DealExtreme driver board to power a laser

Quote:
Originally Posted by Hallucynogenyc View Post
The second one is not adjustable, the first one is intended to output 3.5 amps. I would never try to power such a sensible component like a laser diode with this. Also, look at the comments, they say they take a huge ammount of power from batteries and that the efficiency is under 50%!
I think that the 15880 may be adjustable. I've read about some mods where a person increased the output of this particular driver, so I would imagine I would be able to decrease it also. Additionally, the 50% efficiency you quoted is when the driver is boosting from 1.2v volts. When it's boosting from 1.2v, there is going to be a fairly large Vin/Vout differential, so I wouldn't expect efficiency to be too high. Besides, I'm planning on using a 3.7v Li-ion, so efficiency will probably be higher than when using 1.2v.

Quote:
Originally Posted by sightfx View Post
I just pulled my SKU7882 off the shelf to test it again because it was about 9 months ago when I started experimented with it. with a 1.5V input it will draw 380ma from source and supply 80ma at 4.8V to the diode. That puts efficiency at 65% which literally sucks


cheers

Ryan
Personally, I dont find 65% all that bad. It's better than the ~50% efficiency I'm getting with the LM317. Besides, when it's boosting 1.5v all the way up to 4.8v, I dont expect that great of an efficiency anyway. Most boost drivers I have read about decrease in efficiency the greater the difference between Vin and Vout, and the 7882 appears to be no exception. I plan on using a 3.7v Li-ion with the driver anyway, so efficiency should be much higher.
spectral532 is offline   Reply With Quote
Old 01-07-2010, 07:54 AM #9
sightfx's Avatar
Class 2 Laser
 
Join Date: May 2009
Location: Montana USA /Alberta Canada
Posts: 480
Rep Power: 21
sightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud of
Send a message via Yahoo to sightfx
sightfx sightfx is offline
Class 2 Laser
sightfx's Avatar
 
Join Date: May 2009
Location: Montana USA /Alberta Canada
Posts: 480
Rep Power: 21
sightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud ofsightfx has much to be proud of
Send a message via Yahoo to sightfx
Default Re: Using a DealExtreme driver board to power a laser

I experimented with a dummy load and put 3V in. The current was >300ma. I think that is because this is a voltage regulated driver and the dummy load draws that much current. All I can say is use it at you own risk and don't risk anything expensive.


-Ryan
__________________
FS: White Fusion Laser Mixing Kit
sightfx is offline   Reply With Quote
Old 01-09-2010, 03:08 AM #10
spectral532's Avatar
Class 1M Laser
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
spectral532 spectral532 is offline
Class 1M Laser
spectral532's Avatar
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
Default Re: Using a DealExtreme driver board to power a laser

After reading a bit more about the 7882 driver board, it does appear to be voltage regulated. Plus, the 15880 seems to have poorer regulation that I had previously thought. So neither of these boards looks too promising for driving LDs. But even then, I might just end up buying a few of these circuit boards and run some tests on them. If I ever get around to doing that I'll report back with the results.
spectral532 is offline   Reply With Quote
Reply

Tags
dealextreme, driver





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











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
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 09:23 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