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 05-29-2011, 10:09 AM #1
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
arcaneinsomniac arcaneinsomniac is offline
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
Default Groove 2 Driver Question

Hi,

I wanted to check in quickly to make sure I have this right.

The groove 2 driver is a linear driver. This means that the current drawn from the power source is the same current that is fed to the diode.

I ask because I do not have a test load yet and I don't want to fry my diode. I just want to set it at 350mA (this is a LPC815)


arcaneinsomniac is offline   Reply With Quote







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







Old 05-29-2011, 01:27 PM #2
ndrew2505's Avatar
Class 3B Laser
 
Join Date: Feb 2008
Posts: 2,824
Rep Power: 243
ndrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond repute
ndrew2505 ndrew2505 is offline
Class 3B Laser
ndrew2505's Avatar
 
Join Date: Feb 2008
Posts: 2,824
Rep Power: 243
ndrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond reputendrew2505 has a reputation beyond repute
Default Re: Groove 2 Driver Question

it takes 1.2v over the voltage needed for the diode itself. if your diode requires 3v to operate then you would need 4.2v going in to the driver.
ndrew2505 is offline   Reply With Quote
Old 05-29-2011, 04:01 PM #3
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
arcaneinsomniac arcaneinsomniac is offline
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
Default Re: Groove 2 Driver Question

Yes, I understand that this is how I figure out the voltage I need, but what I need to know for sure is if the current going into the diode is the same as the current draw from the battery.
arcaneinsomniac is offline   Reply With Quote
Old 05-29-2011, 06:29 PM #4
eytyxhs's Avatar
Class 3R Laser
 
Join Date: Nov 2010
Location: Greece
Posts: 2,077
Rep Power: 411
eytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond repute
Send a message via MSN to eytyxhs Send a message via Skype™ to eytyxhs
eytyxhs eytyxhs is offline
Class 3R Laser
eytyxhs's Avatar
 
Join Date: Nov 2010
Location: Greece
Posts: 2,077
Rep Power: 411
eytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond reputeeytyxhs has a reputation beyond repute
Send a message via MSN to eytyxhs Send a message via Skype™ to eytyxhs
Default Re: Groove 2 Driver Question

You need to buy a testload. Ask Lazeerer he sell 3A testload for 18$
eytyxhs is offline   Reply With Quote
Old 05-30-2011, 08:12 AM #5
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
arcaneinsomniac arcaneinsomniac is offline
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
Default Re: Groove 2 Driver Question

I understand that I will definitely NEED a test load for a flexdrive build, but this is a linear driver that I'm referring to here. I think somebody knowledgeable can answer my question with one word. Is the current draw from the battery the same as the output current on a linear driver?
arcaneinsomniac is offline   Reply With Quote
Old 05-30-2011, 08:47 AM #6
Wolfman29's Avatar
Class 3B Laser
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Wolfman29 Wolfman29 is offline
Class 3B Laser
Wolfman29's Avatar
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Default Re: Groove 2 Driver Question

It should be exactly the same or slightly more than the actual output of the driver (not that familiar with the Groove, so not sure if it has any noticeable current draw, itself).
Wolfman29 is offline   Reply With Quote
Old 05-31-2011, 04:30 AM #7
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
arcaneinsomniac arcaneinsomniac is offline
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
Default Re: Groove 2 Driver Question

Thanks Wolfman.

So I put the Groove 2 driver in "Hi mode" after it had been working quite well at ~250mA, and even when I turned the pot all the way back there was much more than 50mA going to the diode (I know cause it was bright!). Am I supposed to disconnect my LD every time I make an adjustment to the driver? It's a huge pain for me to solder these tiny pins. I guess I should use wires to make it a little easier.

Anyhow I think it ended up pushing too much current and now my diode is a weak LED. Time to make a test load...

Last edited by arcaneinsomniac; 05-31-2011 at 04:31 AM.
arcaneinsomniac is offline   Reply With Quote
Old 05-31-2011, 05:47 AM #8
Wolfman29's Avatar
Class 3B Laser
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Wolfman29 Wolfman29 is offline
Class 3B Laser
Wolfman29's Avatar
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Default Re: Groove 2 Driver Question

No, you shouldn't EVER disconnect your diode (basically) from your driver once it's hooked up so that it doesn't get owned :P
Wolfman29 is offline   Reply With Quote
Old 05-31-2011, 05:57 AM #9
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: Groove 2 Driver Question

for a linear driver you do not need a test load. but you do need a digital multimeter. so use your same voltage you will be using in your host and supply power to your driver. BUT... first make sure your dmm is in dc amp mode and the red prob is in the appropriate socket. then hook your dmm leads to the driver out put. then power the driver. and set your pot. its that simple.

michael.
__________________
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 05-31-2011, 07:02 AM #10
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
arcaneinsomniac arcaneinsomniac is offline
Class 1M Laser
 
Join Date: May 2011
Posts: 140
Rep Power: 12
arcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to allarcaneinsomniac is a name known to all
Default Re: Groove 2 Driver Question

Alright, well then I don't know what's up with the Groove driver because I put a solder blob on the High mode bridge, which is supposed to change it from 30mA-200mA range to 50mA-500mA range, but it was drawing upwards of 250mA even with the pot turned all the way down.

Now the diode is LEDing so I think I'm gonna take it off and do some tests to figure out what's going on with the driver.

Update: The driver seems to be fubared. I really don't know what it was I could have done to screw it up though. I'll test it again after I get my test load, but right now it's in Low mode with the pot turned down and the current thru the output is very dependent on the voltage in. It was drawing over an amp at 5 volts (ammeter hooked up to output) and it's not supposed come close to one amp.

Last edited by arcaneinsomniac; 05-31-2011 at 09:31 PM.
arcaneinsomniac 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 10:00 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