Old 04-05-2011, 10:41 PM #17
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 3580
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 3580
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Still looking for a driver...

1.25 / DESIRED AMPS = OHM RESISTOR NEEDED

Voltage is irrelevant to the calculation. You just need to always supply the circuit with at least whatever voltage the diode needs + the regulator's dropout voltage.


__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote


















Old 04-06-2011, 12:03 AM #18
jbtm's Avatar
Class 2 Laser
 
Join Date: Mar 2010
Posts: 495
Rep Power: 28
jbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant future
jbtm jbtm is offline
Class 2 Laser
jbtm's Avatar
 
Join Date: Mar 2010
Posts: 495
Rep Power: 28
jbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant future
Default Re: Still looking for a driver...

Quote:
Originally Posted by rhd View Post
1.25 / DESIRED AMPS = OHM RESISTOR NEEDED

Voltage is irrelevant to the calculation. You just need to always supply the circuit with at least whatever voltage the diode needs + the regulator's dropout voltage.
LDO Voltage Regulators | Newark.com

looks like it should do just fine =)

Sneak peak of all but the driver installed.



I'm loving it =D
__________________
Machinist at work...

Last edited by jbtm; 04-06-2011 at 01:40 AM.
jbtm 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 12:21 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