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 > 445nm Lasers



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



Reply
 
LinkBack Thread Tools Display Modes
Old 01-05-2011, 05:58 PM #17
midias's Avatar
Class 2M Laser
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
midias midias is offline
Class 2M Laser
midias's Avatar
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
Default Re: LM317 Driver question

Quote:
Originally Posted by jib77 View Post
For a 3A continuous current rectifier I use a OnSemi 1N5401G. Put a cap on the input otherwise the LD1085V will not be stable(datasheet recommends 10uF, but another 47uF should be fine). Your resistors will need to handle 3.75W, make sure they are rated 2W each so you get a total 4W of available power dissipation.

Personally I like to use resistors with a PD~ 2x more than my actual PD but that is just me hating when things get hot


__________________
405nm 31mw "<5mw" China Cheapie
405nm 71mw Samsung player harvest maglight build 115ma Flex Drive
405nm 223mw 6X Cree Build 210ma Flex Drive
445nm >1050mw 16850 Build 1300ma Flex Drive
445nm pen pointer ~20mw
473nm 20mw BWB-10-OEM lab unit
Way OverSpec 532nm 5mw Green (24mw)
532nm 82mw "50mw" Green
532nm 116mw Super Green Beast 100
635nm 46mw Pen Pointer with LM337 Driver
635nm 37mw Super Red Beast 006
635nm 235mw Mitsubishi Build
650nm 5mw Aluminum pointer
660nm 109mw 16X Lab Bud Box Build 200ma LM317 Drive
660nm 249mw LOC Hotlights Build Flex Drive
685nm 36mw LM317L Pen Build




Laserbee I
midias is offline   Reply With Quote







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







Old 01-05-2011, 06:17 PM #18
itsmei's Avatar
Class 1M Laser
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
itsmei itsmei is offline
Class 1M Laser
itsmei's Avatar
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
Default Re: LM317 Driver question

How many mW would 1500mA be?
itsmei is offline   Reply With Quote
Old 01-05-2011, 06:21 PM #19
midias's Avatar
Class 2M Laser
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
midias midias is offline
Class 2M Laser
midias's Avatar
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
Default Re: LM317 Driver question

Quote:
Originally Posted by itsmei View Post
How many mW would 1500mA be?
Post your mA and mW

Post your mA and mW
__________________
405nm 31mw "<5mw" China Cheapie
405nm 71mw Samsung player harvest maglight build 115ma Flex Drive
405nm 223mw 6X Cree Build 210ma Flex Drive
445nm >1050mw 16850 Build 1300ma Flex Drive
445nm pen pointer ~20mw
473nm 20mw BWB-10-OEM lab unit
Way OverSpec 532nm 5mw Green (24mw)
532nm 82mw "50mw" Green
532nm 116mw Super Green Beast 100
635nm 46mw Pen Pointer with LM337 Driver
635nm 37mw Super Red Beast 006
635nm 235mw Mitsubishi Build
650nm 5mw Aluminum pointer
660nm 109mw 16X Lab Bud Box Build 200ma LM317 Drive
660nm 249mw LOC Hotlights Build Flex Drive
685nm 36mw LM317L Pen Build




Laserbee I
midias is offline   Reply With Quote
Old 01-05-2011, 06:46 PM #20
itsmei's Avatar
Class 1M Laser
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
itsmei itsmei is offline
Class 1M Laser
itsmei's Avatar
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
Default Re: LM317 Driver question

Ok thanks I have come to a conclusion that I am going to stick to my 1st plan with one LM317 as that goes up to 1.5A. I will just power it up t 1.5a and then have an adjustable pot so I can change it when I like. This way it will be simple I will just get a few resistors that will equal 0.8ohms. Do you think the origional idea is better as I don't need a 3a regulator if I am putting1.5A through. If I use. Lm317 it will reach 1.5A but I will add a big heat sink.

Does ths seem like a better idea?
Do you think I should use just 2x 186500 batteries which gives 7.4v?


P.S sorry for any spelling mistakes I wrote this on my
iPod

Last edited by itsmei; 01-05-2011 at 06:49 PM.
itsmei is offline   Reply With Quote
Old 01-05-2011, 07:17 PM #21
midias's Avatar
Class 2M Laser
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
midias midias is offline
Class 2M Laser
midias's Avatar
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
Default Re: LM317 Driver question

I think 7.4 will be cutting it close the lm317 needs ~2.5 + Vdiode and the 445 at that amperage are about 5V. Personally I would not run the LM317 at 1.5A but I just hate running things right at their limit. When I learned design I was always taught to leave a margin. You could always run 2 lm317s in parallel at 750ma each.
__________________
405nm 31mw "<5mw" China Cheapie
405nm 71mw Samsung player harvest maglight build 115ma Flex Drive
405nm 223mw 6X Cree Build 210ma Flex Drive
445nm >1050mw 16850 Build 1300ma Flex Drive
445nm pen pointer ~20mw
473nm 20mw BWB-10-OEM lab unit
Way OverSpec 532nm 5mw Green (24mw)
532nm 82mw "50mw" Green
532nm 116mw Super Green Beast 100
635nm 46mw Pen Pointer with LM337 Driver
635nm 37mw Super Red Beast 006
635nm 235mw Mitsubishi Build
650nm 5mw Aluminum pointer
660nm 109mw 16X Lab Bud Box Build 200ma LM317 Drive
660nm 249mw LOC Hotlights Build Flex Drive
685nm 36mw LM317L Pen Build




Laserbee I
midias is offline   Reply With Quote
Old 01-05-2011, 07:27 PM #22
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
anselm anselm is offline
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
Default Re: LM317 Driver question

Quote:
Personally I would not run the LM317 at 1.5A but I just hate running things right at their limit.
If it is designed for a limit of 1.5A it almost 99.9% certainly was designed to be able
to run AT that limit, and has a built in safety margin. Just think about it...
Otherwise it would have to be rated at, like, 1.4A...
__________________
I'm away from home and lasers until late July!
Kryton Groove switch workaround
Get your warning label stickers 0.90$ or less, depending on qty
The INDEX to the LPF
Add to it, and spam it from your signature, too!
Beware! Scams a-plenty, don't be a sucker!
___________________________
ATTENTION
This forum is fullfilled mit special electronische equippment. Fingergrabbing and pressing the cnoeppkes from the lasers is
allowed for die experts only! So all the “lefthanders” stay away and do not disturben the brainstorming von here working
intelligencies. Otherwise you will be out thrown and kicked anderswhere! Also: please keep still and only watchen astaunished the blinkenlights.
anselm is offline   Reply With Quote
Old 01-05-2011, 07:42 PM #23
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,141
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,141
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: LM317 Driver question

Quote:
Originally Posted by itsmei View Post
2xcapacitor of 10hm each in parallel to get me 0.5ohm, i will use more than 2 watt input.


I don't know where to begin, so I won't.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 01-05-2011, 07:54 PM #24
itsmei's Avatar
Class 1M Laser
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
itsmei itsmei is offline
Class 1M Laser
itsmei's Avatar
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
Default Re: LM317 Driver question

Spam /\ ....

Anyway I am just going to run at 7.4 v and 1.5a with a few resistors to cope with 1.5A. Anyone suggest any safety glasses I think that dragon lasers glasses are good. What do you think?
itsmei is offline   Reply With Quote
Old 01-05-2011, 07:55 PM #25
midias's Avatar
Class 2M Laser
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
midias midias is offline
Class 2M Laser
midias's Avatar
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
Default Re: LM317 Driver question

Quote:
Originally Posted by anselm View Post
If it is designed for a limit of 1.5A it almost 99.9% certainly was designed to be able
to run AT that limit, and has a built in safety margin. Just think about it...
Otherwise it would have to be rated at, like, 1.4A...
Yea but it is 1.5A at a certain PD remember PD of the LM317 is ~ (Vin - Vout) * I so with a higher Vin it may not be able to support the thermal load at 1.5A Also as it approaches its current limit the Voltage dropout increases a bit requiring a higher Vin. But in the end you should be ok because it is a guaranteed 1.5A and a typical of 2.2

The dragon glasses are good. Also good luck with 7.4V I still think it is a bit too low.
__________________
405nm 31mw "<5mw" China Cheapie
405nm 71mw Samsung player harvest maglight build 115ma Flex Drive
405nm 223mw 6X Cree Build 210ma Flex Drive
445nm >1050mw 16850 Build 1300ma Flex Drive
445nm pen pointer ~20mw
473nm 20mw BWB-10-OEM lab unit
Way OverSpec 532nm 5mw Green (24mw)
532nm 82mw "50mw" Green
532nm 116mw Super Green Beast 100
635nm 46mw Pen Pointer with LM337 Driver
635nm 37mw Super Red Beast 006
635nm 235mw Mitsubishi Build
650nm 5mw Aluminum pointer
660nm 109mw 16X Lab Bud Box Build 200ma LM317 Drive
660nm 249mw LOC Hotlights Build Flex Drive
685nm 36mw LM317L Pen Build




Laserbee I

Last edited by midias; 01-05-2011 at 08:00 PM.
midias is offline   Reply With Quote
Old 01-05-2011, 07:56 PM #26
midias's Avatar
Class 2M Laser
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
midias midias is offline
Class 2M Laser
midias's Avatar
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
Default Re: LM317 Driver question

Quote:
Originally Posted by Cyparagon View Post


I don't know where to begin, so I won't.
Yea Caps in parallel add like resistors in series but not in ohms
__________________
405nm 31mw "<5mw" China Cheapie
405nm 71mw Samsung player harvest maglight build 115ma Flex Drive
405nm 223mw 6X Cree Build 210ma Flex Drive
445nm >1050mw 16850 Build 1300ma Flex Drive
445nm pen pointer ~20mw
473nm 20mw BWB-10-OEM lab unit
Way OverSpec 532nm 5mw Green (24mw)
532nm 82mw "50mw" Green
532nm 116mw Super Green Beast 100
635nm 46mw Pen Pointer with LM337 Driver
635nm 37mw Super Red Beast 006
635nm 235mw Mitsubishi Build
650nm 5mw Aluminum pointer
660nm 109mw 16X Lab Bud Box Build 200ma LM317 Drive
660nm 249mw LOC Hotlights Build Flex Drive
685nm 36mw LM317L Pen Build




Laserbee I
midias is offline   Reply With Quote
Old 01-05-2011, 08:04 PM #27
itsmei's Avatar
Class 1M Laser
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
itsmei itsmei is offline
Class 1M Laser
itsmei's Avatar
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
Default Re: LM317 Driver question

Ahh ok so you recommend 3x 18650 batteries to give me 12.1 v, will this not get things very hot. I am having a big heat sink but will this be enough?
I will get 2 pairs of glasses from dragon lasers.
itsmei is offline   Reply With Quote
Old 01-05-2011, 08:07 PM #28
midias's Avatar
Class 2M Laser
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
midias midias is offline
Class 2M Laser
midias's Avatar
 
Join Date: Mar 2010
Posts: 639
Rep Power: 32
midias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond reputemidias has a reputation beyond repute
Default Re: LM317 Driver question

Quote:
Originally Posted by itsmei View Post
Ahh ok so you recommend 3x 18650 batteries to give me 12.1 v, will this not get things very hot. I am having a big heat sink but will this be enough?
I will get 2 pairs of glasses from dragon lasers.
Try 2 but you may not get the current out you want. 3x at 3.7V for 11.1 should also give you a much longer run time. A decent heat sink with a good thermal pad or grease should be good.
__________________
405nm 31mw "<5mw" China Cheapie
405nm 71mw Samsung player harvest maglight build 115ma Flex Drive
405nm 223mw 6X Cree Build 210ma Flex Drive
445nm >1050mw 16850 Build 1300ma Flex Drive
445nm pen pointer ~20mw
473nm 20mw BWB-10-OEM lab unit
Way OverSpec 532nm 5mw Green (24mw)
532nm 82mw "50mw" Green
532nm 116mw Super Green Beast 100
635nm 46mw Pen Pointer with LM337 Driver
635nm 37mw Super Red Beast 006
635nm 235mw Mitsubishi Build
650nm 5mw Aluminum pointer
660nm 109mw 16X Lab Bud Box Build 200ma LM317 Drive
660nm 249mw LOC Hotlights Build Flex Drive
685nm 36mw LM317L Pen Build




Laserbee I
midias is offline   Reply With Quote
Old 01-05-2011, 08:19 PM #29
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,141
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,141
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: LM317 Driver question

Quote:
Originally Posted by midias View Post
Yea Caps in parallel add like resistors in series but not in ohms
10 + 10 = 0.5, eh?
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 01-05-2011, 08:38 PM #30
itsmei's Avatar
Class 1M Laser
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
itsmei itsmei is offline
Class 1M Laser
itsmei's Avatar
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
Default Re: LM317 Driver question

/\ it was a typo....

Thanks for your help everyone! I will post pics when I get it!
itsmei is offline   Reply With Quote
Old 01-05-2011, 08:47 PM #31
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
anselm anselm is offline
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
Default Re: LM317 Driver question

Well I gotta say, I've been happy so far running only off 2x1850, as you can see in my
signature, bottom link.
Sure, after a while of running at full power, voltage sags enough that current
starts to decrease.
When both batteries are down to 3V, the diode doesn't even lase anymore.
__________________
I'm away from home and lasers until late July!
Kryton Groove switch workaround
Get your warning label stickers 0.90$ or less, depending on qty
The INDEX to the LPF
Add to it, and spam it from your signature, too!
Beware! Scams a-plenty, don't be a sucker!
___________________________
ATTENTION
This forum is fullfilled mit special electronische equippment. Fingergrabbing and pressing the cnoeppkes from the lasers is
allowed for die experts only! So all the “lefthanders” stay away and do not disturben the brainstorming von here working
intelligencies. Otherwise you will be out thrown and kicked anderswhere! Also: please keep still and only watchen astaunished the blinkenlights.

Last edited by anselm; 01-05-2011 at 08:59 PM.
anselm is offline   Reply With Quote
Old 01-06-2011, 04:22 PM #32
itsmei's Avatar
Class 1M Laser
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
itsmei itsmei is offline
Class 1M Laser
itsmei's Avatar
 
Join Date: Dec 2009
Location: England
Posts: 151
Rep Power: 8
itsmei is on a distinguished road
Default Re: LM317 Driver question

So you think that I should use 2x 18650 batteries. What mA and what driver do you power the diode?
itsmei 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 06:58 AM.


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