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Tri laser

Crazyk187

Crazyk187

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I have a project I am working on and I started it months ago long before I discovered this wonderful place. I have 3 laser red 5mw diodes and I am trying to splice them together. I just hooked them all up and used a 9v battery. Needless to say they got hot and one lost over 50% power. How would I go about hooking up 3 laser diodes to one power source. I am sure I don't need to tell you I really have no experience. Just allot of reading off this forum. I know I could proably use search, but it seems that what I am doing is so simple compaired to the likes of other peoples projects. Thanks for your help........
 
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Crazyk187

Crazyk187

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As dorky as it sounds I am trying to make a tri laser for my Predator Bio mask. I have the positive wires and negative wires split to a bigger wire to be linked to a battery
 
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hxdrummerxc

hxdrummerxc

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That would actually be pretty cool.... I love the predator.

But... Hooking them up to a 9v is not good.

Before I found these forums, and before I knew anything about lasers...
I took a blu-ray diode from a ps3 and hooked it straight up to a 9v battery. It lit up for a second, and never lit again. Pretty funny looking back on it. :crackup:

You probably need some sort of driver(s) for this. Although I am still learning day by day myself. I just know how to hook up single diodes. Someone more knowledgeable would probably be able to point you in the right direction.
 
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Crazyk187

Crazyk187

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No its not good....LOL. All the diodes. Got hot then one went to what seemed half power lol (they were like 1.60$ us) each no big deal ..........I am assuming I need some kinda resistor......idk ???
 
hxdrummerxc

hxdrummerxc

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weeba2kv said:
DealExtreme: $6.30 2~5mW Dot Red Laser Module (5-Pack/3V) a 5 pack of 2-5 mW diodes 3volt for a few bux
and they work good
Click to expand...

Those would work perfect. Since they are not just bare diodes. They are the whole module. I guess you could safely run those with a 9v too.

This pic was posted on the predator site that you linked.
prewiredlasers.jpg
 
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Cyparagon

Cyparagon

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Tape three of those 3mW modules together (in a sort of triangle pattern) and wire them in series with a 9V.
 
Crazyk187

Crazyk187

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This is what I did. Reading on this forum is see my error. What is that in between the switch and the diodes. Resistor???

IMAG0340.jpg
 
M

Montez

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Series means hooking them up red, black, red, black and so. Then hooking the remaining red and black wires to your power supply. If you do that a 9 volt battery should be fine. Also the the thing the guy has wired between the diodes and the battery is a current or voltage regulator.
 
hxdrummerxc

hxdrummerxc

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Series wiring, if I am not mistaken.... should look like these examples....

The example uses speakers and amps = power supply - laser modules

Impedance1.gif


4-Speaker_Series_Wiring_Dia.gif




Series VS Parallel
wiring-impedance-options-01.jpg
 
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