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 > Drivers, Test-load, Power Supply, & Batteries



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



Reply
 
LinkBack Thread Tools Display Modes
Old 05-14-2014, 11:35 AM #1
TimTom's Avatar
Class 1M Laser
 
Join Date: Jan 2014
Location: Germany, Hamburg
Posts: 136
Rep Power: 27
TimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond repute
TimTom TimTom is offline
Class 1M Laser
TimTom's Avatar
 
Join Date: Jan 2014
Location: Germany, Hamburg
Posts: 136
Rep Power: 27
TimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond repute
Default M140: Powering with USB?

Hi guys,

today I got the idea to power up a M140 diode with a USB from my pc, because I don't have a driver atm. that is working and I want some fun with my lazor's.

I heard, that they give me about 500mA up to 1,5A. Is it true, if yes, useful or possible for the diode?

Would be cool ^-^

Thank you,

Tim


__________________
445nm >1W MS-SSW II <3 (diode used for second build, dead)
445nm ~1W in Flashlighthost
532nm 100mW (dead)
TimTom is offline   Reply With Quote







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







Old 05-14-2014, 01:40 PM #2
jimdt7's Avatar
Class 3R Laser
 
Join Date: Feb 2011
Location: Greece
Posts: 1,899
Rep Power: 114
jimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond repute
Send a message via Skype™ to jimdt7
jimdt7 jimdt7 is offline
Class 3R Laser
jimdt7's Avatar
 
Join Date: Feb 2011
Location: Greece
Posts: 1,899
Rep Power: 114
jimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond repute
Send a message via Skype™ to jimdt7
Default Re: M140: Powering with USB?

That's not a good idea nor for the PC nor for the diode...it could damage both!
I suggest you buy a boost driver if you plan to power your diode from a USB port!

Jim
__________________
mY lAsErS

Blue-rays
PHR-803t, 117mW Aurora C6
320mW 6x Hotlight

Blues

Bigboy ~2.5W
Labby 1.8W
1.1W in Aurora C6
800mW WL Spyder Arctic G2
Greens
O-like Green Crown 500mW Peak 731mW Chart here
PL520 100mW
Cheap e-bay 25mW and 100mW

Reds
O-like cute 300mW (Dead)

LPMs
Modded Laserbee 2.5W USB
jimdt7 is offline   Reply With Quote
Old 05-14-2014, 02:51 PM #3
ARG's Avatar
ARG ARG is offline
Super Moderator
 
Join Date: Feb 2011
Location: Canada
Posts: 6,987
Rep Power: 1994
ARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond repute
ARG ARG is offline
Super Moderator
ARG's Avatar
 
Join Date: Feb 2011
Location: Canada
Posts: 6,987
Rep Power: 1994
ARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond repute
Default Re: M140: Powering with USB?

You can't hook it up directly as USB is constant voltage and you need constant current.
ARG is offline   Reply With Quote
Old 05-14-2014, 03:18 PM #4
TimTom's Avatar
Class 1M Laser
 
Join Date: Jan 2014
Location: Germany, Hamburg
Posts: 136
Rep Power: 27
TimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond repute
TimTom TimTom is offline
Class 1M Laser
TimTom's Avatar
 
Join Date: Jan 2014
Location: Germany, Hamburg
Posts: 136
Rep Power: 27
TimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond reputeTimTom has a reputation beyond repute
Default Re: M140: Powering with USB?

okay, good to know - thank you! (:
__________________
445nm >1W MS-SSW II <3 (diode used for second build, dead)
445nm ~1W in Flashlighthost
532nm 100mW (dead)
TimTom is offline   Reply With Quote
Old 05-19-2014, 05:26 PM #5
LarryDFW's Avatar
Class 3R Laser
 
Join Date: Dec 2008
Location: Dallas, TX
Posts: 1,577
Rep Power: 128
LarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond repute
LarryDFW LarryDFW is offline
Class 3R Laser
LarryDFW's Avatar
 
Join Date: Dec 2008
Location: Dallas, TX
Posts: 1,577
Rep Power: 128
LarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond repute
Default Re: M140: Powering with USB?

TimTom;

In spite of the comments, your diode can be hooked up directly to a USB voltage source.

1. You must have the diode in a good heat sink.

2. Then you must check the current when hooked up to your 5 VDC USB port (they will vary) If current is too high for the diode, then you will need a resistor to lower the current.

I have a 445nm diode hooked up to a new 4.35 VDC lithium cell for a direct drive @ 700ma. It has been operated that way for over 1 year.

Direct-Drive 445 Host

LarryDFW
__________________
UV LED Lights F/S, 445nm, Blu-Rays, Red 1/2W, Green Focusables,
Link- Blu-Ray/445 Diode Test Current Levels for Long Life
LarryDFW is offline   Reply With Quote
Old 05-19-2014, 06:49 PM #6
ARG's Avatar
ARG ARG is offline
Super Moderator
 
Join Date: Feb 2011
Location: Canada
Posts: 6,987
Rep Power: 1994
ARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond repute
ARG ARG is offline
Super Moderator
ARG's Avatar
 
Join Date: Feb 2011
Location: Canada
Posts: 6,987
Rep Power: 1994
ARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond reputeARG has a reputation beyond repute
Default Re: M140: Powering with USB?

Quote:
Originally Posted by LarryDFW View Post
In spite of the comments, your diode can be hooked up directly to a USB voltage source.

1. You must have the diode in a good heat sink.

2. Then you must check the current when hooked up to your 5 VDC USB port (they will vary) If current is too high for the diode, then you will need a resistor to lower the current.

I have a 445nm diode hooked up to a new 4.35 VDC lithium cell for a direct drive @ 700ma. It has been operated that way for over 1 year.
Just because something can be done does not mean it's a good idea
If you must hook up the diode directly to a voltage source at least use a resistor to drop the excess voltage, 5V is too high for an M140.
ARG is offline   Reply With Quote
Old 05-19-2014, 09:38 PM #7
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Re: M140: Powering with USB?

and this is why we have dialog. whether some thing is safe or not is now up to the op to decide =p
__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote
Old 05-20-2014, 04:53 AM #8
jimdt7's Avatar
Class 3R Laser
 
Join Date: Feb 2011
Location: Greece
Posts: 1,899
Rep Power: 114
jimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond repute
Send a message via Skype™ to jimdt7
jimdt7 jimdt7 is offline
Class 3R Laser
jimdt7's Avatar
 
Join Date: Feb 2011
Location: Greece
Posts: 1,899
Rep Power: 114
jimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond reputejimdt7 has a reputation beyond repute
Send a message via Skype™ to jimdt7
Default Re: M140: Powering with USB?

I once tried powering my A-140 straight from a 9V battery....it WORKED! (for a week)

Jim
__________________
mY lAsErS

Blue-rays
PHR-803t, 117mW Aurora C6
320mW 6x Hotlight

Blues

Bigboy ~2.5W
Labby 1.8W
1.1W in Aurora C6
800mW WL Spyder Arctic G2
Greens
O-like Green Crown 500mW Peak 731mW Chart here
PL520 100mW
Cheap e-bay 25mW and 100mW

Reds
O-like cute 300mW (Dead)

LPMs
Modded Laserbee 2.5W USB
jimdt7 is offline   Reply With Quote
Old 05-20-2014, 05:25 AM #9
NKO29's Avatar
Class 2M Laser
 
Join Date: Jun 2013
Location: Sydney, Australia
Posts: 871
Rep Power: 108
NKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond repute
NKO29 NKO29 is offline
Class 2M Laser
NKO29's Avatar
 
Join Date: Jun 2013
Location: Sydney, Australia
Posts: 871
Rep Power: 108
NKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond reputeNKO29 has a reputation beyond repute
Default Re: M140: Powering with USB?

I have powered a 300mW red off of USB WITH DRIVER just fine However you'd probably want a high end desktop motherboard to do higher currents.
__________________
Stupid Australian laser regulations...
Oh, and I LOVE smilies

405nm BULLET LASER 270mW
450mW 532nm SHINY
40mW 532nm mini
1.4W 445nm WickedLasers Arctic
650mW 638nm in MS-V4 Sq.1
~3W 445nm in Ehgemus BIG host
Being built:

~500mW 405nm in MS-Envy

3.7W Laserbee LPM (USB)
NKO29 is offline   Reply With Quote
Old 05-23-2014, 06:58 PM #10
BShanahan14rulz's Avatar
Class 3B Laser
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
BShanahan14rulz BShanahan14rulz is offline
Class 3B Laser
BShanahan14rulz's Avatar
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
Default Re: M140: Powering with USB?

At 5V, the M140 would allow ~3.5-4A, which is too much for this little beastie, and definitely would either trip a temporary fuse on your computer or just burn up that USB port. Visually extrapolated from this graph: http://cms.diodenring.de/images/stor...-3_voltage.png


A blu-ray diode is a different story, with a higher Vf range within which 5V falls fairly comfortably.

I have an A140 build (well, I used to, can't find it right now ) that is direct driven from an 18650, but even at 4.2V, a typical 445nm diode will only allow ~800mA, which is easy peasy for an 18650.
BShanahan14rulz is offline   Reply With Quote
Old 05-24-2014, 04:57 AM #11
LarryDFW's Avatar
Class 3R Laser
 
Join Date: Dec 2008
Location: Dallas, TX
Posts: 1,577
Rep Power: 128
LarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond repute
LarryDFW LarryDFW is offline
Class 3R Laser
LarryDFW's Avatar
 
Join Date: Dec 2008
Location: Dallas, TX
Posts: 1,577
Rep Power: 128
LarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond repute
Default Re: M140: Powering with USB?

Quote:
Originally Posted by ARG View Post
If you must hook up the diode directly to a voltage source at least use a resistor to drop the excess voltage, 5V is too high for an M140.
It depends on the source of the USB power and the wiring.

Most USB sources will sag ~ 1/2 volt under that load (several amps).

My 445nm direct drive runs @ 4.4 VDC and only delivers 650 ma.

A 0.22 ohm resistor would be a good idea, to test the current with.

LarryDFW
__________________
UV LED Lights F/S, 445nm, Blu-Rays, Red 1/2W, Green Focusables,
Link- Blu-Ray/445 Diode Test Current Levels for Long Life

Last edited by LarryDFW; 05-24-2014 at 05:02 AM.
LarryDFW 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 09:46 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