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 12-07-2009, 12:25 PM #1
Junior Member
 
Join Date: Oct 2009
Posts: 21
Rep Power: 0
1d4n is on a distinguished road
1d4n 1d4n is offline
Junior Member
 
Join Date: Oct 2009
Posts: 21
Rep Power: 0
1d4n is on a distinguished road
Default 2 weird driver problem

hi
ive build an laser driver from this site
the 1 with lm317
at first it was working just fine with current set to 330ma
but now i was just curious so i decide to check to voltage and ma
well it show that the output voltage is not 3v its between 6-7.5 volts
isnt it should be 3v?
and second problem
i turn it on
the laser working but after 4-6 seconds the light starting to weaken
until its almost turned off
why is that??
thank you


1d4n is offline   Reply With Quote







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







Old 12-07-2009, 12:43 PM #2
daguin's Avatar
Super Moderator
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 1432
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
daguin daguin is offline
Super Moderator
daguin's Avatar
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 1432
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
Default Re: 2 weird driver problem

Quote:
Originally Posted by 1d4n View Post
hi
ive build an laser driver from this site
the 1 with lm317
at first it was working just fine with current set to 330ma
but now i was just curious so i decide to check to voltage and ma
well it show that the output voltage is not 3v its between 6-7.5 volts
isnt it should be 3v?
and second problem
i turn it on
the laser working but after 4-6 seconds the light starting to weaken
until its almost turned off
why is that??
thank you

We need more information. What diode? What battery?

Peace,
dave
__________________
How To Get Along In and Be Accepted in the Forum

If you got some value out of reading this forum, how about donating $2 to keep it going?
Click Here to donate

Love all, trust a few, do wrong to none.
-William Shakespeare
daguin is offline   Reply With Quote
Old 12-07-2009, 07:09 PM #3
Junior Member
 
Join Date: Oct 2009
Posts: 21
Rep Power: 0
1d4n is on a distinguished road
1d4n 1d4n is offline
Junior Member
 
Join Date: Oct 2009
Posts: 21
Rep Power: 0
1d4n is on a distinguished road
Default Re: 2 weird driver problem

the diode is 16x red lcc
the battery is 7.2v 2cell li-po
1d4n is offline   Reply With Quote
Old 12-07-2009, 08:43 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: 2 weird driver problem

When measuring the output voltage make sure you have a test load connected, otherwise you might get an incorrect voltage reading.

I'm not sure why your laser is dimming out after a few seconds of use. The batteries are fully charged right? You might try hooking up the driver to a alternate power supply and see if you get the same results.
spectral532 is offline   Reply With Quote
Old 12-07-2009, 09:25 PM #5
Junior Member
 
Join Date: Oct 2009
Posts: 21
Rep Power: 0
1d4n is on a distinguished road
1d4n 1d4n is offline
Junior Member
 
Join Date: Oct 2009
Posts: 21
Rep Power: 0
1d4n is on a distinguished road
Default Re: 2 weird driver problem

yes the the battery is fully load
and when it dimming the diode is extreamly hot
maybe bacuse of that?
and if yes why the diode wont fry up?
what makes the diode go lower?
1d4n is offline   Reply With Quote
Old 12-07-2009, 09:54 PM #6
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: 2 weird driver problem

The heat might have something to do with it, I'm not sure though. You really shouldn't be running a diode to the point where it's "extremely hot" anyway. If it gets this hot within a few seconds you might be pushing too much current though it.

Have you tried measuring the current while you run the diode? Check the current running through the diode when its at full power vs when it dims.
spectral532 is offline   Reply With Quote
Old 12-08-2009, 03:42 PM #7
FireMyLaser's Avatar
Class 3B Laser
 
Join Date: Jan 2008
Location: Sweden
Posts: 3,052
Rep Power: 567
FireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond repute
Send a message via MSN to FireMyLaser
FireMyLaser FireMyLaser is online now
Class 3B Laser
FireMyLaser's Avatar
 
Join Date: Jan 2008
Location: Sweden
Posts: 3,052
Rep Power: 567
FireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond repute
Send a message via MSN to FireMyLaser
Default Re: 2 weird driver problem

It is hot because you don't apply heat sinking...
__________________
Niko likes cereal.
FireMyLaser is online now   Reply With Quote
Old 12-08-2009, 05:36 PM #8
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: 2 weird driver problem

Ehm ..... as FireMyLaser say .....

330 mA in a LCC with the bare diode ? ..... if yes, maybe you have burned it (and if it's still working, you're lucky)

Cause you mean that you are trying the diode alone, not in an aixiz module or in any heatsink, right ?
__________________
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 12-09-2009, 09:58 PM #9
Junior Member
 
Join Date: Oct 2009
Posts: 21
Rep Power: 0
1d4n is on a distinguished road
1d4n 1d4n is offline
Junior Member
 
Join Date: Oct 2009
Posts: 21
Rep Power: 0
1d4n is on a distinguished road
Default Re: 2 weird driver problem

well the weird thing it didnt burn its just dimming after few sconds then i cut the power off
and when im connecting the power again it just start with high light and again dimming
maybe its cos of the heat
btw any1 knows where i can get aixiz model in israel??
i just dont have that aixiz thing
1d4n is offline   Reply With Quote
Old 12-10-2009, 08:48 AM #10
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: 2 weird driver problem

Probably ebay is the better solution ..... bu i'm not sure, i know nothing about Israelian custom / import laws. (but aixiz sell 10 modules at a time, mean, packs of 10)

Or any other reseller around here, that you can find in the forum, if you just want one or two of them ..... like modwerx, or similars ..... also some other users sell items here, and maybe they have some to sell, and are more near your place .....


Edit: by the way, this is an aixiz module

__________________
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.

Last edited by HIMNL9; 12-10-2009 at 08:54 AM.
HIMNL9 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











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 09:42 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