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Old 09-27-2010, 12:31 AM #1
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Default My 445 flashes brightly then dies down! Help!

I need some help guys, i dont know what im doing wrong. I have a Flaminpyro SSH build using a microboost drive to power my 445 diode. When i put the battery in, (an 18650) and i turn it on, it flashes brightly for an instant and then dies down to the point where it wont even smoke anything even if i focus it. I dont have an LPM, but shouldn't that mean that its outputting less than 100mW?.. anyways, i tried adjusting the driver and the same thing happens, i took it apart and re-soldered everything too to see if that was the problem and no. And i dont think its gone LED because it flashes brightly every time I turn it on, meaning it didnt just happened once.

Help please!!!!


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Old 09-27-2010, 12:32 AM #2
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Default Re: My 445 flashes brightly then dies down! Help!

Quote:
Originally Posted by deam_87 View Post
I need some help guys, i dont know what im doing wrong. I have a Flaminpyro SSH build using a microboost drive to power my 445 diode. When i put the battery in, (an 18650) and i turn it on, it flashes brightly for an instant and then dies down to the point where it wont even smoke anything even if i focus it. I dont have an LPM, but shouldn't that mean that its outputting less than 100mW?.. anyways, i tried adjusting the driver and the same thing happens, i took it apart and re-soldered everything too to see if that was the problem and no. And i dont think its gone LED because it flashes brightly every time I turn it on, meaning it didnt just happened once.

Help please!!!!
What brand/make of battery are you using?
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Old 09-27-2010, 12:34 AM #3
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Default Re: My 445 flashes brightly then dies down! Help!

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Originally Posted by udanis View Post
What brand/make of battery are you using?

Sanyo #18650 Batteries & Chargers

the 2400 mAh
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Old 09-27-2010, 12:40 AM #4
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Default Re: My 445 flashes brightly then dies down! Help!

Okay....good battery so that isn't it. Has the diode ever worked properly?
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Old 09-27-2010, 12:42 AM #5
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Default Re: My 445 flashes brightly then dies down! Help!

im not sure, its my first 445 build. how can i test it?



I have another brand new 445 diode, but i dont want to thrash this one if its still good and im doing something wrong... could it be the driver??? what if i hook it up directly to a 9 volt batt just to see if it holds a higher output power? would i risk burning it, even if its for a couple seconds??

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Old 09-27-2010, 12:58 AM #6
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Default Re: My 445 flashes brightly then dies down! Help!

Quote:
Originally Posted by deam_87 View Post
im not sure, its my first 445 build. how can i test it?



I have another brand new 445 diode, but i dont want to thrash this one if its still good and im doing something wrong... could it be the driver??? what if i hook it up directly to a 9 volt batt just to see if it holds a higher output power? would i risk burning it, even if its for a couple seconds??
It could yes. You really have to know whats its set at and if it's heating up or not. I personally wouldn't hook it up directly to an unregulated power source, but I was informed this week that you are able to with out ruining that diode. You best be would be to test the driver output though.
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Old 09-27-2010, 01:03 AM #7
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Default Re: My 445 flashes brightly then dies down! Help!

oh man :/ i dont even have a DMM, i guess im gonna have to buy one here... im curently in Mexico, so its gonna be more expensive... you wouldnt know whats the scheme is for a 445 test load do you?
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Old 09-27-2010, 01:07 AM #8
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Default Re: My 445 flashes brightly then dies down! Help!

Quote:
Originally Posted by deam_87 View Post
oh man :/ i dont even have a DMM, i guess im gonna have to buy one here... im curently in Mexico, so its gonna be more expensive... you wouldnt know whats the scheme is for a 445 test load do you?



third link down on google

laser driver test load - Google Search

http://www.rog8811.com/test%20load01.jpg
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Old 09-27-2010, 01:15 AM #9
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Default Re: My 445 flashes brightly then dies down! Help!

Thank you Sir!!
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Old 09-27-2010, 01:24 AM #10
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Default Re: My 445 flashes brightly then dies down! Help!

Quote:
Originally Posted by deam_87 View Post
Thank you Sir!!
Yep
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