Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > 445nm Lasers



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 02-21-2017, 07:23 PM #1
Junior Member
 
Join Date: Feb 2017
Posts: 8
Rep Power: 0
MrSnaKe is on a distinguished road
MrSnaKe MrSnaKe is offline
Junior Member
 
Join Date: Feb 2017
Posts: 8
Rep Power: 0
MrSnaKe is on a distinguished road
Default BlackBuck 8M few questions

According to

BlackBuck 8M - 8A Buck Laser Driver - NDB7A75, NUBM44, NUMB05, NUBM06, NUBM08 | eBay

On picture with tag "The connection method if you are not using external modulation sources"

on laser diode or LED must be 2...5 V forward voltage

but I received around 10,5V

https://drive.google.com/drive/folde...mM?usp=sharing

IMAG0592.jpg


also I try connect like tag "The connection method using an external signal"

I have an arduino as PWM/TTL
Frequency around 1,95 kHz
Duty cycle from 35% on 1% power in arduino to around 95% on 99% power in arduino

but on LED i still receiving around 10,5V

I also try like this

https://www.hackster.io/macinblack/l...arduino-719d14

with potentiometer but also unsuccessfully

Arduino with this cheaper chinese driver work perfect

12V TTL 1W 1.6W 3W 445nm 450nm Laser Diode LD Driver Power Supply Stage Light | eBay


What I do wrong?


MrSnaKe is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 02-21-2017, 07:41 PM #2
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 8,051
Rep Power: 40345
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 8,051
Rep Power: 40345
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: BlackBuck 8M few questions

Is the output limit for the BlackBuck definitely 5V? I can't find that information for certain...

What is the current set to? What LED are you using? The output doesn't vary at all if you hook up a pot as described? Can you provide more pictures of how you have everything wired up?
__________________


405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<

diachi is online now   Reply With Quote
Old 02-21-2017, 08:17 PM #3
Junior Member
 
Join Date: Feb 2017
Posts: 8
Rep Power: 0
MrSnaKe is on a distinguished road
MrSnaKe MrSnaKe is offline
Junior Member
 
Join Date: Feb 2017
Posts: 8
Rep Power: 0
MrSnaKe is on a distinguished road
Default Re: BlackBuck 8M few questions

Quote:
Originally Posted by diachi View Post
Is the output limit for the BlackBuck definitely 5V? I can't find that information for certain...
I also cannot find that information, only in picture

Quote:
What is the current set to? What LED are you using? The output doesn't vary at all if you hook up a pot as described? Can you provide more pictures of how you have everything wired up?
I try to hook up the pot - nothing, as I understand the pot set max Amps not Voltage

https://drive.google.com/drive/folde...mM?usp=sharing

IMAG0593.jpg - power supply set to 12V

IMAG0595.jpg - multimeter connected to 1W LED diode, blue wire - TTL +, white - TTL -

IMAG0596.jpg - arduino - blue wire - TTL +, white - TTL -

IMAG0597.jpg - arduino TTL connector

IMAG0598.jpg - ttl off

IMAG0599.jpg - ttl on 5% power
IMAG0600.jpg - led
IMAG0601.jpg - 10,56V on led

IMAG0602.jpg ttl on power 65%
IMAG0603.jpg - 10,56V on led

IMAG0604.jpg - wire from power supply connected to laser driver and arduino board (I mean "-" are common)


Look I think problem in ttl/pwm because with potentiometer 10kOm I can change voltage in LED from 0 to 10 volts
MrSnaKe is offline   Reply With Quote
Old 02-21-2017, 08:56 PM #4
diachi's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 8,051
Rep Power: 40345
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
diachi diachi is online now
Class 4 Laser
diachi's Avatar
 
Join Date: Feb 2008
Location: Yellowknife, NT, Canada
Posts: 8,051
Rep Power: 40345
diachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond reputediachi has a reputation beyond repute
Send a message via Skype™ to diachi
Default Re: BlackBuck 8M few questions

Have you verified that the TTL/PWM signal is actually working properly still, perhaps there is an issue there? Start with the signal source, then work your way towards the driver and output. Clearly the modulation input on the driver is working (at least to some extent) if you can adjust output using a pot and the on board 5V reference.
__________________


405nm | Banggood LT-850 | "5mW" | Review Unit | Review WIP
445nm | Sanwu Laser Pocket Series | 400mW Metered
445nm | NDB7242E Pen Build | 60mW Metered | >>Build Thread<<
450nm | LaserPointerStore - Thor H2 | 1W(?) | Review Unit | >>Review<<
488nm | Spectra Physics 163 Argon | ~30mW Metered
515nm | PL515 Pen Build | 50mW Metered | >>Build Thread<<
520nm | Laserlands 520 | 5mW | Review Unit | 3mW metered | >>Review<<
532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD-850 Pointer | 30mW Metered (I think, need to re-test).
633nm | HeNe | 6mW
633nm | Spectra Physics 155 HeNe | <1mW >>Thread<<
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2



Check out my Reddit Subreddit! >>/r/laserpointers<<

diachi is online now   Reply With Quote
Old 02-21-2017, 09:21 PM #5
Junior Member
 
Join Date: Feb 2017
Posts: 8
Rep Power: 0
MrSnaKe is on a distinguished road
MrSnaKe MrSnaKe is offline
Junior Member
 
Join Date: Feb 2017
Posts: 8
Rep Power: 0
MrSnaKe is on a distinguished road
Default Re: BlackBuck 8M few questions

Quote:
Originally Posted by diachi View Post
Have you verified that the TTL/PWM signal is actually working properly still, perhaps there is an issue there? Start with the signal source, then work your way towards the driver and output. Clearly the modulation input on the driver is working (at least to some extent) if you can adjust output using a pot and the on board 5V reference.
Yes the pot (IMAG0614.jpg) and 5V reference allow adjust output voltage to LED from 0 to max


TTL/PWM signal working properly

https://drive.google.com/drive/folde...mM?usp=sharing

IMAG0605.jpg - TTL off

Frequency and duty cycle

IMAG0606.jpg - TTL power 5%
IMAG0607.jpg - TTL power 25%
IMAG0608.jpg - TTL power 50%
IMAG0609.jpg - TTL power 90%


Votls

IMAG0606.jpg - TTL power 5%
IMAG0607.jpg - TTL power 25%
IMAG0608.jpg - TTL power 50%
IMAG0609.jpg - TTL power 90%


I just checked with that driver

12V TTL 1W 1.6W 3W 445nm 450nm Laser Diode LD Driver Power Supply Stage Light | eBay

and A-140 laser diode

everything work perfect
MrSnaKe is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 11:08 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC