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 11-13-2010, 03:45 PM #1
Class 1M Laser
 
Join Date: May 2008
Posts: 185
Rep Power: 15
bbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of light
bbshamsa bbshamsa is offline
Class 1M Laser
 
Join Date: May 2008
Posts: 185
Rep Power: 15
bbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of light
Default Don't understand the "continuous" negative path in the flexdrive

Hi all.

After checking out, I still can't completely get my head around the wiring methods for the flexdrive vs the microboost.

I totally understand the microboost method where you can use the case pin wired to the driver -ve input to feed current into the driver from the diode case via the host body, it makes sense, but I don't understand the "continuous" -ve input and output design of the flexdrive, and why it requires a different wiring style, or what advantages/disadvantages it offers.

I always get lost when reading that if you use a 405/445 diode with a flexdrive, then you can just attach the diode case pin to the diode -ve pin, and solder both to the driver negative output connection.

Is the safest (for the diode), most reliable way to wire a 405/445 to a flexdrive to use the same technique as for microboosts? By which I mean soldering an isolated wire from the diode case pin to the driver -ve input, and soldering both the +ve and -ve diode pins to their corresponding driver +ve and -ve diode connections?

Ultimately, if I understood what the continuous part of the flexdrive meant, I'd likely understand the difference between the two main wiring styles, I think.

Any help appreciated, of course.

Thanks.



Last edited by bbshamsa; 11-13-2010 at 03:49 PM.
bbshamsa is offline   Reply With Quote







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







Old 11-13-2010, 04:08 PM #2
drlava's Avatar
Class 3R Laser
 
Join Date: Mar 2007
Posts: 1,152
Rep Power: 71
drlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond repute
Send a message via AIM to drlava
drlava drlava is offline
Class 3R Laser
drlava's Avatar
 
Join Date: Mar 2007
Posts: 1,152
Rep Power: 71
drlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond reputedrlava has a reputation beyond repute
Send a message via AIM to drlava
Default Re: Don't understand the "continuous" negative path in the flexdrive

What continuous means in this case is just that the -Vbatt and -Vdiode on the FlexDrive are electrically connected. So assuming your host case is connected to - batt, you can use the case-connected - diode pin as the battery connection also and leave -Vbatt unwired.

With the MicroBoost you would have to run a wire from the case diode pin to -Vbatt on the driver in the same situation.
__________________
My Laser Components Site
drlava is offline   Reply With Quote
Old 11-13-2010, 04:11 PM #3
DTR's Avatar
DTR DTR is online now
Class 4 Laser
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
DTR DTR is online now
Class 4 Laser
DTR's Avatar
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
Default Re: Don't understand the "continuous" negative path in the flexdrive

I always use the isolated wire from the case pin to the driver negative input with both the Flex and Microboost. Even thou it is supposed to work by bridging the diode pins. But I am a creature of habit.
DTR is online now   Reply With Quote
Old 11-13-2010, 04:29 PM #4
Mohrenberg's Avatar
Class 4 Laser
 
Join Date: Aug 2008
Location: Green Ridge,MO USA
Posts: 6,927
Rep Power: 557
Mohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond repute
Send a message via Skype™ to Mohrenberg
Mohrenberg Mohrenberg is offline
Class 4 Laser
Mohrenberg's Avatar
 
Join Date: Aug 2008
Location: Green Ridge,MO USA
Posts: 6,927
Rep Power: 557
Mohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond reputeMohrenberg has a reputation beyond repute
Send a message via Skype™ to Mohrenberg
Default Re: Don't understand the "continuous" negative path in the flexdrive

in short, on a flex drive, only the positive must go through the driver, and on a microdrive, positive and negative must both go through the driver.
On blu-ray & 445 diodes , the negative path is fed into the case pin, which is wired into the driver, travels through the driver and into the - pin on the diode.


This is the way i view it.....
__________________

Http://www.Budgetbeams.com

Last edited by Mohrenberg; 11-13-2010 at 04:35 PM.
Mohrenberg is offline   Reply With Quote
Old 11-13-2010, 05:23 PM #5
Elektrotechniker's Avatar
Class 3B Laser
 
Join Date: Nov 2008
Location: Germany
Posts: 4,240
Rep Power: 409
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Elektrotechniker Elektrotechniker is offline
Class 3B Laser
Elektrotechniker's Avatar
 
Join Date: Nov 2008
Location: Germany
Posts: 4,240
Rep Power: 409
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Default Re: Don't understand the "continuous" negative path in the flexdrive

Quote:
Originally Posted by Mohrenberg View Post
in short, on a flex drive, only the positive must go through the driver, and on a microdrive, positive and negative must both go through the driver.
On blu-ray & 445 diodes , the negative path is fed into the case pin, which is wired into the driver, travels through the driver and into the - pin on the diode.


This is the way i view it.....
So you don't have to use the negative pin on a 405 or 445 diode ?
Elektrotechniker is offline   Reply With Quote
Old 11-13-2010, 07:39 PM #6
DTR's Avatar
DTR DTR is online now
Class 4 Laser
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
DTR DTR is online now
Class 4 Laser
DTR's Avatar
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
Default Re: Don't understand the "continuous" negative path in the flexdrive

Quote:
Originally Posted by Silvershot View Post
So you don't have to use the negative pin on a 405 or 445 diode ?
What they are saying is if you are using a flexdrive you can bridge the negative pin and the case pin and you don't need any wire going to the driver negative input just the positive in and out and the negative out to the bridged negative and case pins.
DTR is online now   Reply With Quote
Old 11-13-2010, 08:35 PM #7
AUTO XX's Avatar
Class 2M Laser
 
Join Date: Aug 2010
Location: Alberta, Canada
Posts: 852
Rep Power: 36
AUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond repute
AUTO XX AUTO XX is offline
Class 2M Laser
AUTO XX's Avatar
 
Join Date: Aug 2010
Location: Alberta, Canada
Posts: 852
Rep Power: 36
AUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond reputeAUTO XX has a reputation beyond repute
Default Re: Don't understand the "continuous" negative path in the flexdrive

That is specifically why I got the flexdrives.
One wire going through the heatsink means the hole can be smaller and that means more bulk is maintained for heat transfer.
Between the silicone wire from flaminpyro and the flexdrive from lava, my latest heatsink has a 1/16th hole through it, a pressfit (milled down) aixiz module and the driver will be heatsinked to the same chunk of aluminum at the other end. (the drivers haven't shown up yet)
Compact with improved heatsinking properties FTW!!!
I really like the technology the enthusiasts are coming up with now. These lasers are becoming more reliable all the time, a few more steps in this direction and they will be viable for a multipurpose survival tool.
__________________
Experience has the uncanny ability to resemble superior intelligence.


2 - 5mW pointer

1 - "5mW" pen *overspec*
2 - 200mW "DX" pens
5 - 1W 808nm labbies (soon to have custom hosts)
3 - 1.6W 445 handheld in a professional home DIY host - 2 Sold
3 - "5mW" Ebay pens - 1 >30mW
1 - ~600mW 405 in a handmade heatsink + SS Cree host
AUTO XX is offline   Reply With Quote
Old 11-13-2010, 10:30 PM #8
Class 1M Laser
 
Join Date: May 2008
Posts: 185
Rep Power: 15
bbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of light
bbshamsa bbshamsa is offline
Class 1M Laser
 
Join Date: May 2008
Posts: 185
Rep Power: 15
bbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of lightbbshamsa is a glorious beacon of light
Default Re: Don't understand the "continuous" negative path in the flexdrive

Quote:
Originally Posted by DTR View Post
I always use the isolated wire from the case pin to the driver negative input with both the Flex and Microboost. Even thou it is supposed to work by bridging the diode pins. But I am a creature of habit.
Yeah, well this approach seems the one I'll take too as at least with this approach it seems to be using the driver to handle the negative input.

I know what I just wrote will probably highlight my misunderstanding about circuits and this one in particular, but I understand that current flows from -ve to +ve, and as Dr. Lava states...

Quote:
What continuous means in this case is just that the -Vbatt and -Vdiode on the FlexDrive are electrically connected. So assuming your host case is connected to - batt, you can use the case-connected - diode pin as the battery connection also and leave -Vbatt unwired.

With the MicroBoost you would have to run a wire from the case diode pin to -Vbatt on the driver in the same situation.
... Then, to me, this would mean that the current flows directly into the laser diode before even reaching the driver (from host case, to diode case and pin, straight to diode -ve in).

I thought the current had to be regulated by the driver, in which case I thought it would at least have to flow through the driver before reaching the laser diode in order to be regulated.

I know I must be missing something here and not actually questioning the design of the flexdrive, and as long as it doesn't cause any harm, will continue to use the same method for flexdrives as DTR does; wiring the case pin to the driver -ve input.

I just feel a bit thick doing it without knowing precisely why I'll be doing it.

Thanks everyone for your comments though, really helpful

Last edited by bbshamsa; 11-13-2010 at 11:46 PM.
bbshamsa is offline   Reply With Quote
Old 11-13-2010, 11:43 PM #9
532 with Envy's Avatar
Class 3R Laser
 
Join Date: Jun 2010
Location: Somewhere between Here and THere
Posts: 1,491
Rep Power: 576
532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute
532 with Envy 532 with Envy is offline
Class 3R Laser
532 with Envy's Avatar
 
Join Date: Jun 2010
Location: Somewhere between Here and THere
Posts: 1,491
Rep Power: 576
532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute532 with Envy has a reputation beyond repute
Default Re: Don't understand the "continuous" negative path in the flexdrive

Geez I feel like fool among scholars but thought that I would put my two cent in.

I have used the Flex-Drive and Boost-Drive for 445nm builds...also I should put out there I, myself, am still trying to get my head around the subject of your thread(English lit major)
In my last 445nm build I used the flex...I did not use the case pin of the diode....I Did use the (-) in to the driver and 'crimped' the wire between the heat-sink and host...to get my negative from the battery.
[IMG][/IMG]

When I used the Boost-Drive on a 445nm I did use the case pin and connected it to the (-) in to the driver..and it worked(as stated above)
I hope that this doesn't confuse more...I am a visual learner...(thanks DTR for your great pics!) Hope this shows what worked for me with the Flex-Drive
__________________
_______________________________________________

337.1nm Home Built TEA Laser
HeNe lasers a'plenty.Plus that nice one in the avatar
594nm Melles Griot HeNe
594nm Trius Engineering HeNe
405nm handhelds (diy)
445nm handhelds (diy)
473nm B&W Tek lab style
488nm.40mW Multi-Line Argon Ion laser.....(with thanks to Dave)
515nm Argon Ion laser 40mW
532nm lab style 100mW+handhelds (diy)
543nm Melles Griot HeNe
674nm lab style..500mW
808nm 40W FAP diode array
Kimmon IK4123R-B Helium-Cadmium laser and matching power supply.(with great thanks to Event_Horizon!)(Non-working head...PM me if you have one or information)
532 with Envy 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 11:29 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