Old 12-30-2008, 09:52 PM #1
Class 1 Laser
 
Join Date: Dec 2007
Location: USA
Posts: 95
Rep Power: 11
DNMEBOY is on a distinguished road
Send a message via Yahoo to DNMEBOY
DNMEBOY DNMEBOY is offline
Class 1 Laser
 
Join Date: Dec 2007
Location: USA
Posts: 95
Rep Power: 11
DNMEBOY is on a distinguished road
Send a message via Yahoo to DNMEBOY
Default How Can I......?

Get 9 volts from a host that only accepts 3 AAA batteries without going and killing a laser module designed to take 9 volts?

3.6 x 3 = 10.8

So I would be 1.8v over if I used 3 x 3.6v AAA batteries.


DNMEBOY is offline   Reply With Quote


















Old 12-30-2008, 10:22 PM #2
rog8811's Avatar
Class 3B Laser
 
Join Date: Jul 2007
Location: Berkshire UK
Posts: 2,749
Rep Power: 1251
rog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond repute
rog8811 rog8811 is offline
Class 3B Laser
rog8811's Avatar
 
Join Date: Jul 2007
Location: Berkshire UK
Posts: 2,749
Rep Power: 1251
rog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond repute
Default Re: How Can I......?

It depends a bit on the driver circuit , you can put as much as 38v into an LM317 circuit without raising the output, (the excess voltage gets turned into heat). I am using a rkcstr with 3 10440 3.6v batteries, driving an 803T LD with no problems.

Most drivers we use are constant current, so as long as you keep the voltage between the upper and lower limits for the regulator you should be OK.

Regards rog8811
__________________
See all of my videos on Vimeo
http://www.vimeo.com/4454150

Lots of tutorials and information on lasers
http://www.rog8811.com/

In the land of the blind the one eyed man..... is most likely holding the laser
rog8811 is offline   Reply With Quote
Old 12-31-2008, 12:58 AM #3
Class 1 Laser
 
Join Date: Dec 2007
Location: USA
Posts: 95
Rep Power: 11
DNMEBOY is on a distinguished road
Send a message via Yahoo to DNMEBOY
DNMEBOY DNMEBOY is offline
Class 1 Laser
 
Join Date: Dec 2007
Location: USA
Posts: 95
Rep Power: 11
DNMEBOY is on a distinguished road
Send a message via Yahoo to DNMEBOY
Default Re: How Can I......?

Awsome. So its like ddls driver I first built. I just really needed the minimum voltage in order to power it.

I think the rkcstr is the one I will be working with. I am not sure.

So I guess now I need to locate the batteries I want.
DNMEBOY 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

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 05:56 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC