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Old 04-18-2011, 06:07 PM #337
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

Quote:
Originally Posted by xivlia View Post
hmm i think the batteries are fine
but i only built it today :S could it be the driver? i may have shortened out something maybe thats caused it? im pretty sure the diode is fine.. is there any way i can test to see if the component are working or not?
Do you have a test load? I would first see what current, if any, the driver is putting out. If its putting the ~1300ma that is expected, the diode has issues. Did you test the voltage of the batteries with a DMM?


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Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
1.2W RGB Projector; JNM Wide Sky Galvos (Made in Germany); Laser Show Express; Arduino-based DAC
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Old 04-18-2011, 06:09 PM #338
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

^^^ Lol. Jib beat me to it.
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Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
1.2W RGB Projector; JNM Wide Sky Galvos (Made in Germany); Laser Show Express; Arduino-based DAC
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Old 04-18-2011, 06:30 PM #339
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

you MUST test first but from my own experience...

no light at all, either means (1) its really dead OR (2) something else is wrong, like bad contacts or driver issues, so thats save-able.

dim light = almost 99.99% of the time dead diode...or expensive LED

i personally cringe when i see dim light in my lasers... i'd rather have no light at all...then at least theres a change the diode is still ok
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Old 04-18-2011, 06:59 PM #340
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

I agree with stevie...these 445 diodes are much more robust than the 405 or 650 diodes, but they are still sensitive. Overcurrent, overheating, ESD, shock from impact, and reversed polarity are just a few of the killers of diodes. I hope I'm wrong for your sake, though.

I always use a test load first.
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Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
1.2W RGB Projector; JNM Wide Sky Galvos (Made in Germany); Laser Show Express; Arduino-based DAC

Last edited by rocket689; 04-18-2011 at 07:00 PM.
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Old 04-18-2011, 07:23 PM #341
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

hmm i dont have any tools for measuring current etc. what things do i exactly need to measure output current etc. and what can i use as a dummy load?

Last edited by xivlia; 04-18-2011 at 07:47 PM.
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Old 04-18-2011, 08:45 PM #342
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

Quote:
Originally Posted by xivlia View Post
hmm i dont have any tools for measuring current etc. what things do i exactly need to measure output current etc. and what can i use as a dummy load?
In order to measure current, you will need a digital multimeter (DMM) and a test load. A test load is a circuit comprised of diodes (4 for red, 6 for violet/blue) and a resistor. You hook the test load to your driver and read the mv on either side of the resistor. mv = ma. You can build a test load or buy them. If you want, I can sell one to you. I build 3A test loads that pretty much take any current that todays laser diodes require without burning up the test diodes.
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Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
1.2W RGB Projector; JNM Wide Sky Galvos (Made in Germany); Laser Show Express; Arduino-based DAC

Last edited by rocket689; 04-19-2011 at 02:10 AM.
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Old 04-18-2011, 08:46 PM #343
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

help please lol im dying to use the laser but i cant. tomorrow im going to use the schools DMM to test batteries. but how can i test the driver to see if its outputting any current? would i just use a DMM for that also, if so...which parts do i put the DMM connections on the driver? sorry for the questions its my first build and im annoyed that its not working.
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Old 04-18-2011, 08:47 PM #344
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

ahh u typed that while i was typing this lol okay :P
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Old 04-18-2011, 08:49 PM #345
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

Quote:
Originally Posted by rocket689 View Post
In order to measure current, you will need a digital multimeter (DMM) and a test load. A test load is a circuit comprised of diodes (4 for red, 6 for violet/blue) and a resistor. You hook the test load to your driver and read the mv on either side of the resistor. mv = ma. You can build a test load or buy them. If you want, I can sell one to you. I build 3A test loads that pretty much take any current that todays diodes require without burning up the diodes.
hmm. ive got no money left. but how much do you sell them for? il take it into consideration
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Old 04-18-2011, 08:49 PM #346
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

Try searching "test loads" or" dummy load" to see how to build one
__________________
Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
1.2W RGB Projector; JNM Wide Sky Galvos (Made in Germany); Laser Show Express; Arduino-based DAC
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Old 04-18-2011, 08:52 PM #347
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

The test load is required to simulate the voltage drop and load of a laser diode without wrecking an actual LD so you can't just use a dmm
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Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
1.2W RGB Projector; JNM Wide Sky Galvos (Made in Germany); Laser Show Express; Arduino-based DAC

Last edited by rocket689; 04-18-2011 at 08:53 PM.
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Old 04-18-2011, 08:59 PM #348
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

hmm okay. i will build a test load tomorrow and try and see what the problem is. thanks for the help guys. also. i dont have a DMM but i tested my batteries buy shortening each one out...first one. heated up almost un touchable..thats normal. becuase its loosing huge amounts of current thus generating heat..but the second battery didnt heat up at all when i shortened it. maybe its the battery? who knows. i will test it tomorrow.
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Old 04-18-2011, 09:07 PM #349
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

It could very well be a bad battery. If you don't have enough voltage, the laser will be dim. Good luck!
__________________
Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
1.2W RGB Projector; JNM Wide Sky Galvos (Made in Germany); Laser Show Express; Arduino-based DAC
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Old 04-19-2011, 01:16 AM #350
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

Wow nice new drivers
well i have 1 question, do i have to short + and - before connecting it to my diode?
should of asked before
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Old 04-19-2011, 01:19 AM #351
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

Yep! - To discharge the cap.
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Old 04-19-2011, 02:31 AM #352
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Default Re: FS: LM1117 Linear Driver - 1.3A Fixed

Yup always discharge the cap ... they may be small but they are 10uf's and they hold enough of a charge to zap these diodes without a problem.
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