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ArcticMyst Security by Avery

My new PHR-803T + balloon pop






Joined
Apr 29, 2008
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You know, lasers are meant to be pulsed! At that rate you should turn the mA up a little, around 120mA would be better. Also it looks like you aren't using a heatsink, so you should check the temperature of the module every so often to make sure it doesn't overheat.
 

k1kb0t

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May 12, 2009
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Great job, if you can turn up the frequency you'll probably get a higher output, Like Jim said you can go to 120mA CW with a PHR, and get a proper heatsink so you can up the duty cycle.

Jon
 

cust11

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Jun 21, 2009
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I wouldn't mind getting my hands on a schematic for that pulse driver you have there :poke:.:D

I am really impressed to see the distance you have on that balloon pop!

-Mike
 
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May 31, 2008
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I wouldn't mind getting my hands on a schematic for that pulse driver you have there :poke:.:D

I am really impressed to see the distance you have on that balloon pop!

-Mike

Here is the schematic, its pretty much the standard LM317 driver powering the diode and a 555 timer setup pulsing a transistor to ground. I just threw that schematic together using Multisim, I was rather tired at the time so the pin-outs might not be entirely accurate but you get the concept.

Throw me some PMs if you have any more questions.
 

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cust11

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Here is the schematic, its pretty much the standard LM317 driver powering the diode and a 555 timer setup pulsing a transistor to ground. I just threw that schematic together using Multisim, I was rather tired at the time so the pin-outs might not be entirely accurate but you get the concept.

Throw me some PMs if you have any more questions.


Thank you sir! I would really like to try out a pulsed PHR and I think this will give me the opportunity to do so! I just sent off my 156mA PHR to BCM to get power graphed and I may have a pulse circuit waiting for its arrival. Thanks!

-Mike

(+rep for the help :D)
 
Joined
May 4, 2009
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I may be wrong but i think that you may have a little problem finding a host that will fit your driver.LOL. Looks good. I would definetely consider having some sort of heatsink.

Skylight
 
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Sep 16, 2007
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Hi guys,

If I want to run the PHR-803T at say 110mA, what voltage should I use? I've got a PSU that allows me to adjust V and A at the same time.


Thanks.
 




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