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 > Drivers, Test-load, Power Supply, & Batteries



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



Reply
 
LinkBack Thread Tools Display Modes
Old 02-21-2013, 12:48 AM #1
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Regulated psu and microboost trouble

Hey guys, I finally manned up and bought a regulated dc power supply. It's a 30v and 5 amp max rated. I've toyed with it with some LEDs and 1 laser diode and it works pretty good..... Buuuuuut when I hook it to my microboost that is soldered to my ld, my ps will just keep ramping up the current to my ld. Know the ld is getting all the current because it clearly and visibly keeps getting brighter all the way up to 2.2A. I haven't pushed it further.

I'm pretty sure my mb is set to 600ma. It could be broken but idk? I left my multi meter at work so I can't test it. But I do I have a new flex that I purchased preset to 1200ma so ill try that too.

I don't have a question per say, I just thought I'd put this out there. I'll post back later with my findings of my flex.

Edit... Ok, I put my new never used flex drive on. Soldered ld to board. Hooked up my regulated psu and same results. The seems all current goes to ld. Although the flex drive flashes when it starts to overheat. But when I power driver/ld via battery it works great.

So now I have a question. Am I doing something wrong, or is this a well known thing?

Michael


__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html

Last edited by chipdouglas; 02-21-2013 at 01:58 AM.
chipdouglas is offline   Reply With Quote







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







Old 02-26-2013, 02:11 AM #2
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Regulated psu and microboost trouble

Bench power supplies often have problems powering switching devices. This is because the switching frequency is often faster than the power supply's response time. That usually results in the power supply hitting the current limit though; you're experiencing the opposite.

Sounds to me like maybe you're trying to power a current source with a current source. When powering the driver, the power supply should be in constant voltage mode (have the current limit set to max), and the voltage set to an appropriate value for the driver. 3.7V in this case.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 02-26-2013, 03:51 AM #3
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Re: Regulated psu and microboost trouble

My power supply wont really let me adjust any values visually.
In my limited experience i need draw on the psu to be able to set it.
Example. When turned on under no load i can turn all knobs all the way to max
And see nothing on psu lcd. Now when i power straight laser diode with out driver, if all knobs are turned to min, and i ramp up current nothing happens. I.need to turn voltage all the way up and ramp up current slowly, the voltage will adjust accordingly to ld max. I assume you want me to do this but with voltage instead of current.??? Ill try later, im in boston for work.
__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote
Old 02-26-2013, 09:12 PM #4
ped's Avatar
ped ped is offline
Class 3B Laser
 
Join Date: Nov 2008
Location: Liverpool , UK
Posts: 4,915
Rep Power: 7046
ped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond repute
ped ped is offline
Class 3B Laser
ped's Avatar
 
Join Date: Nov 2008
Location: Liverpool , UK
Posts: 4,915
Rep Power: 7046
ped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond reputeped has a reputation beyond repute
Default Re: Regulated psu and microboost trouble

Cyp is right.

These drivers have real problems with bench PSU's. Its like trying to drive a driver, with a driver.

I always use two paralleled 18650's to set up drivers, if the bench psu is in CV mode ( current limit set to off) and its not working, it simply ain't going to. If you adjust current or voltage while the driver is under load, its going to try and compensate.
__________________
@Ped0771

5000mW Coherent/Kenometer

Lazoors:
550mW C6 9mm lens
445nm Blord "Big Boy" 3.36w 9mm lens
445nm Jarob C6 kit (on 3rd diode) 1.9w 9mm lens
Various 532n nm 15mw pens ~ 600mW monster
515nm 34mW Direct Green Diode - LaserBtB
Various 650's - 1mW pens upto 300mW C6's

Last edited by ped; 02-26-2013 at 09:13 PM.
ped is offline   Reply With Quote
Old 02-28-2013, 01:21 AM #5
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Regulated psu and microboost trouble

Quote:
Originally Posted by chipdouglas View Post
I assume you want me to do this but with voltage instead of current.??? Ill try later, im in boston for work.
Yes, your method is how you drive laser diodes or LEDs; it's not for drivers. You will almost certainly damage your driver doing that. This is because the power supply ramps up voltage (up to 30V in your case) trying to push more current through the driver. I'm guessing the flexdrive doesn't operate well at 30V.

Drivers want constant voltage ideally.

Quote:
Originally Posted by ped View Post
if the bench psu is in CV mode ( current limit set to off) and its not working, it simply ain't going to.
Well, adding a large filter cap between supply and driver will usually solve the problem. This will smooth out the current draw pulses. Use an electrolytic - the biggest value you can find. For added safety, you might want to select one with a voltage rating greater than the max voltage of your power supply. As you might know, they will have a shit-fit if over-volted. You'll be cleaning up foil, paper, and metal shrapnel on the other side of the room and possibly from your face.

Note: do not use a filter cap when operating in current mode as it can destabilize the supply.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 03-01-2013, 01:35 AM #6
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Re: Regulated psu and microboost trouble

Thanks for the help guys...

Cyp, are you still interested in doing those led drivers for me? If not, no worries.
__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote
Old 03-02-2013, 02:30 AM #7
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Regulated psu and microboost trouble

Yes, I can still help you with those.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 03-02-2013, 02:44 AM #8
Flaminpyro's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Flaminpyro Flaminpyro is offline
Class 4 Laser
Flaminpyro's Avatar
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Default Re: Regulated psu and microboost trouble

This is why I use a 18650 cell to set all my switching drivers, even my $400.00 Agilent U8002A power supply gives the same results
__________________
White Fusion Time Machine 445
473nm LRS-0473-KFM-00150-10 158.5mW Lab style
laser used in the making of the latest TRON movie

CNI PGL-III-C-589 125mW
520 in a SH-032
Viasho 532nm 500mW
CNI pen 532nm 84mW
The Violet Pip Squeek 45mW

_____________________________________
LOOKING FOR A HOST WITH PERFECT HEAT SINKING
order your C-88 Cu kit today !

Flaminpyro 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 06:08 AM.


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