View unanswered posts | View active topics It is currently Thu Dec 26, 2024 4:41 pm



This topic is locked, you cannot edit posts or make further replies.  [ 24 posts ]  Go to page 1, 2  Next
 Input of X volts to have output power = 30mW? 
Author Message
User avatar

Joined: Sat Jun 16, 2007 2:31 am
Posts: 2982
Location: Texas
Post Input of X volts to have output power = 30mW?
How many mW is 3 volts? Additionally, how many volts is 30mW? Also, what is the volt/mW ratio?

You see, I have a class III laser with a max output of <30mW (wavelength = 532nm +-10). It's running on two 1.5V AAA batteries, and I'm sure I can kick the power up quite a bit. I just don't know the conversion factor.

Already Googled, didn't see anything.


Tue Oct 19, 2010 9:56 pm
Profile
User avatar

Joined: Mon Jun 15, 2009 4:02 pm
Posts: 905
Post Re: Input of X volts to have output power = 30mW?
Alternate title: HEY GUYS HOW DO I LIGHT JOINT WITH LASER?
Clearly a noble endeavour, and don't say you haven't thought it.

I don't actually have anything constructive to add, so uh yeah.


Tue Oct 19, 2010 10:03 pm
Profile WWW
User avatar

Joined: Sat Jun 16, 2007 2:31 am
Posts: 2982
Location: Texas
Post Re: Input of X volts to have output power = 30mW?
Not me desired intention, as I do not have any papers... Or any weed atm.... lol but not a bad idea.

No, in fact, I just want to see how high I can make this go up to and see what all I can burn/pop.


Tue Oct 19, 2010 10:05 pm
Profile
happy carebear mom
User avatar

Joined: Tue Mar 04, 2008 1:40 am
Posts: 7096
Location: b8bbd5
Post Re: Input of X volts to have output power = 30mW?
A watt (the W there) is not a unit directly convertable to volts unless you also know your amperage.
Watts = Volts X Amps
But, if you know the max voltage rating for your diode, then you can try increasing the amperage after getting that many volts.


Tue Oct 19, 2010 10:08 pm
Profile
DRL Developer
DRL Developer

Joined: Fri May 15, 2009 10:29 am
Posts: 4107
Location: Russia
Post Re: Input of X volts to have output power = 30mW?
I don't know much about this, but from what I remember it's some bull♥♥♥♥ about if you have amps aswell, you can calculate out the voltage from watts.

Or something like that. I'm not supposed to know this for a year.

DAMNIT DUH


Tue Oct 19, 2010 10:08 pm
Profile
User avatar

Joined: Tue Jul 21, 2009 4:36 am
Posts: 347
Location: The place where asses go to be bad
Post Re: Input of X volts to have output power = 30mW?
Code:
function voltage()
   V = voltage
   W = wattage
   A = amperage
//formula
   V = W/A

   if V = W/A then
      V*A = W
      V/W = A
   end
end


Last edited by Joe on Tue Oct 19, 2010 10:21 pm, edited 1 time in total.



Tue Oct 19, 2010 10:17 pm
Profile
Data Realms Elite
Data Realms Elite
User avatar

Joined: Tue May 25, 2010 8:27 pm
Posts: 4521
Location: Constant motion
Post Re: Input of X volts to have output power = 30mW?
Duh102 wrote:
amperage


If you mean amplitude, then you are completely correct. I have no idea what kind of amplitude that thing would run at normally, though.


Tue Oct 19, 2010 10:18 pm
Profile
DRL Developer
DRL Developer

Joined: Fri May 15, 2009 10:29 am
Posts: 4107
Location: Russia
Post Re: Input of X volts to have output power = 30mW?
I'm pretty sure it's called watts, not wattage


Tue Oct 19, 2010 10:19 pm
Profile
User avatar

Joined: Tue Jul 21, 2009 4:36 am
Posts: 347
Location: The place where asses go to be bad
Post Re: Input of X volts to have output power = 30mW?
@Roast Veg: No, it's amperage all right

@Lizard: the quantity of watts is known as wattage


Tue Oct 19, 2010 10:23 pm
Profile
User avatar

Joined: Mon Jun 15, 2009 4:02 pm
Posts: 905
Post Re: Input of X volts to have output power = 30mW?
Definitely amperage, and definitely wattage.
Edit:
What Joe said, the blasted ninja.


Tue Oct 19, 2010 10:23 pm
Profile WWW
Data Realms Elite
Data Realms Elite
User avatar

Joined: Tue May 25, 2010 8:27 pm
Posts: 4521
Location: Constant motion
Post Re: Input of X volts to have output power = 30mW?
Hmm... I think it must be one of our British-isms. [Hahaha here we make fun of Americisms]

Anyway, I see Watts as a foolish term anyway. I say whack up that voltage and see what happens.


Tue Oct 19, 2010 10:27 pm
Profile
User avatar

Joined: Sat Jun 16, 2007 2:31 am
Posts: 2982
Location: Texas
Post Re: Input of X volts to have output power = 30mW?
I'll try to find a link of my exact laser. Hold on.

*EDIT*
This, pretty much:
http://www.dealextreme.com/details.dx/sku.12337

Also, no idea the # of amps.


Tue Oct 19, 2010 10:32 pm
Profile
happy carebear mom
User avatar

Joined: Tue Mar 04, 2008 1:40 am
Posts: 7096
Location: b8bbd5
Post Re: Input of X volts to have output power = 30mW?
Roast Veg wrote:
British-isms.
...
Anyway, I see Watts as a foolish term anyway.

Each quantity has their use. Amplitude is an entirely different quantity that applies to waveforms.


Tue Oct 19, 2010 10:37 pm
Profile
User avatar

Joined: Sat Jun 16, 2007 2:31 am
Posts: 2982
Location: Texas
Post Re: Input of X volts to have output power = 30mW?
Well if you said:
Watts = Volts X Amps
And my max output is <30mw, and my volts i know is 3, can I find my amps? Also, I REALLY doubt I can change the amps. All I can do is change the volts. The laser is encased in metal.


Tue Oct 19, 2010 10:38 pm
Profile
User avatar

Joined: Tue Jul 21, 2009 4:36 am
Posts: 347
Location: The place where asses go to be bad
Post Re: Input of X volts to have output power = 30mW?
And if you had a high voltage but a low amperage, you would have a very weak laser beam that lasted a long time.


Tue Oct 19, 2010 11:25 pm
Profile
Display posts from previous:  Sort by  
This topic is locked, you cannot edit posts or make further replies.   [ 24 posts ]  Go to page 1, 2  Next

Who is online

Users browsing this forum: No registered users


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware for PTF.
[ Time : 0.047s | 14 Queries | GZIP : Off ]