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 10-03-2010, 08:33 PM #1
Banned
 
Join Date: Aug 2010
Location: Minnesota
Posts: 365
Rep Power: 0
Braddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to behold
Braddubya Braddubya is offline
Banned
 
Join Date: Aug 2010
Location: Minnesota
Posts: 365
Rep Power: 0
Braddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to behold
Default 2 Volts with boost drive

I'm assuming it won't work but I have a led flashlight I want to use as a host and according to my multimeter its putting out 2 volts to the led. The battery is 3.6 volts rechargeable made out of 3 smaller batteries. The microboost driver is set at 1 amp.

Is 2 volts enough? The host is perfect so I'm hoping it will work.


Braddubya is offline   Reply With Quote







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







Old 10-03-2010, 09:16 PM #2
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 45117
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 45117
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: 2 Volts with boost drive

A boost driver takes the 3.6 Volts of the battery and
BOOSTS it to a higher level.... not lower...

A little research and reading on the Forum would help
you to use the correct terminology and it would easily
answer your voltage/Laser Diode question...


Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner
lasersbee is offline   Reply With Quote
Old 10-03-2010, 09:35 PM #3
Banned
 
Join Date: Aug 2010
Location: Minnesota
Posts: 365
Rep Power: 0
Braddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to behold
Braddubya Braddubya is offline
Banned
 
Join Date: Aug 2010
Location: Minnesota
Posts: 365
Rep Power: 0
Braddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to behold
Default Re: 2 Volts with boost drive

I understand that. What im saying is that at the led the voltage is dropped to 2 volts not 3.6 volts. I want to wire the laser in place of the led because it has a built in battery charger. I know the 3.6 volts works just fine ive just never heard of anyone running as low as 2 volts and I dont want to mess up the driver with low voltage and force it to draw high amps to boost it. I just dont know if 2 volts is enough. Its an easy yes or no question I just cant find my microboost manual.
Braddubya is offline   Reply With Quote
Old 10-03-2010, 09:39 PM #4
Vaporizer's Avatar
Class 2 Laser
 
Join Date: Aug 2010
Location: Northern Hemisphere(Ohio,USA), Earth
Posts: 382
Rep Power: 25
Vaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant future
Vaporizer Vaporizer is offline
Class 2 Laser
Vaporizer's Avatar
 
Join Date: Aug 2010
Location: Northern Hemisphere(Ohio,USA), Earth
Posts: 382
Rep Power: 25
Vaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant future
Default Re: 2 Volts with boost drive

A quick search of the Diode Compilation thread should give you the answer you seek.
__________________
Experience is what you get when you didn't get what you wanted.

Helpful Links:
Ohm's Law Calculator
Parallel Resistance Calculator
LM317 Current Calculator
LM317 Voltage Calculator

Building your 1st Laser?
I Want to Build a Laser
First Build Guide
Vaporizer is offline   Reply With Quote
Old 10-04-2010, 12:59 AM #5
ludwigfan's Avatar
Class 1 Laser
 
Join Date: Aug 2010
Posts: 60
Rep Power: 7
ludwigfan is on a distinguished road
ludwigfan ludwigfan is offline
Class 1 Laser
ludwigfan's Avatar
 
Join Date: Aug 2010
Posts: 60
Rep Power: 7
ludwigfan is on a distinguished road
Default Re: 2 Volts with boost drive

Quote:
Originally Posted by lasersbee View Post
A boost driver takes the 3.6 Volts of the battery and
BOOSTS it to a higher level.... not lower...

A little research and reading on the Forum would help
you to use the correct terminology and it would easily
answer your voltage/Laser Diode question...


Jerry
Now you're just being silly, why would a driver that boosts the voltage be called a boost driver?

We drive on a parkway and park on a driveway.
When you transport something by car it is called a shipment, but when you transport something by ship it's called cargo.

Don't you ever let me catch you making sense again young man.
__________________
45mw WL Greenie since 2006
>1.1W 445nm Yobresal built

"The trouble with the world is not that people know too little, but that they know so many things that ain't so." - Mark Twain

"Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that." -Martin Luther King Jr.
ludwigfan is offline   Reply With Quote
Old 10-04-2010, 01:23 AM #6
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 45117
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 45117
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: 2 Volts with boost drive

Quote:
Originally Posted by ludwigfan View Post
Now you're just being silly, why would a driver that boosts the voltage be called a boost driver?

We drive on a parkway and park on a driveway.
When you transport something by car it is called a shipment, but when you transport something by ship it's called cargo.

Don't you ever let me catch you making sense again young man.
ROFL....

But so true...

Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner
lasersbee is offline   Reply With Quote
Old 10-04-2010, 01:30 AM #7
ludwigfan's Avatar
Class 1 Laser
 
Join Date: Aug 2010
Posts: 60
Rep Power: 7
ludwigfan is on a distinguished road
ludwigfan ludwigfan is offline
Class 1 Laser
ludwigfan's Avatar
 
Join Date: Aug 2010
Posts: 60
Rep Power: 7
ludwigfan is on a distinguished road
Default Re: 2 Volts with boost drive



As for the original question no the microboost can't be run with only 2.0volts, it needs a minimum of 2.7volts according to the specs in the manual found here:

http://hacylon.case.edu/ebay/laser_d...1%20manual.pdf
__________________
45mw WL Greenie since 2006
>1.1W 445nm Yobresal built

"The trouble with the world is not that people know too little, but that they know so many things that ain't so." - Mark Twain

"Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that." -Martin Luther King Jr.
ludwigfan is offline   Reply With Quote
Old 10-04-2010, 01:50 AM #8
Vaporizer's Avatar
Class 2 Laser
 
Join Date: Aug 2010
Location: Northern Hemisphere(Ohio,USA), Earth
Posts: 382
Rep Power: 25
Vaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant future
Vaporizer Vaporizer is offline
Class 2 Laser
Vaporizer's Avatar
 
Join Date: Aug 2010
Location: Northern Hemisphere(Ohio,USA), Earth
Posts: 382
Rep Power: 25
Vaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant future
Default Re: 2 Volts with boost drive

I was looking at dc to dc converters last night. It made reference to Buck boost.
They can also be used to drop voltages too.
So.....does that make it a debooster or an unbuck driver?
Maybe even an unbuckled driver????
__________________
Experience is what you get when you didn't get what you wanted.

Helpful Links:
Ohm's Law Calculator
Parallel Resistance Calculator
LM317 Current Calculator
LM317 Voltage Calculator

Building your 1st Laser?
I Want to Build a Laser
First Build Guide

Last edited by Vaporizer; 10-04-2010 at 02:13 PM.
Vaporizer is offline   Reply With Quote
Old 10-04-2010, 11:05 AM #9
DrSid's Avatar
Class 3R Laser
 
Join Date: Jul 2010
Location: Olomouc, Czech Republic
Posts: 1,516
Rep Power: 153
DrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond repute
DrSid DrSid is offline
Class 3R Laser
DrSid's Avatar
 
Join Date: Jul 2010
Location: Olomouc, Czech Republic
Posts: 1,516
Rep Power: 153
DrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond repute
Default Re: 2 Volts with boost drive

If it puts 2V to the diode from 3.6V, it's not a boost driver.
445nm diode needs about 4V (depending on power required), so from 3.6V it would need boost driver.
__________________
200mw (35mw compared) FocalPrice cheap green AA - Review
500mw (estimated) 445nm Minimalistic Orange Emos Direct Drive. Thread
1500mw (estimated) 445nm Jayrob's Solarforce L2P. Review
DrSid is offline   Reply With Quote
Old 10-04-2010, 01:31 PM #10
ludwigfan's Avatar
Class 1 Laser
 
Join Date: Aug 2010
Posts: 60
Rep Power: 7
ludwigfan is on a distinguished road
ludwigfan ludwigfan is offline
Class 1 Laser
ludwigfan's Avatar
 
Join Date: Aug 2010
Posts: 60
Rep Power: 7
ludwigfan is on a distinguished road
Default Re: 2 Volts with boost drive

Quote:
Originally Posted by DrSid View Post
If it puts 2V to the diode from 3.6V, it's not a boost driver.
445nm diode needs about 4V (depending on power required), so from 3.6V it would need boost driver.
That's what I thought at first, because the OP did a horrific job at explaining what he wanted, which led to the confusion. (sry pun hehe)

He wants to connect the input of the microboost to the driver that the flashlight comes with (which puts out 2V for the flashlight's led) I told him the microboost needs a minimum of 2.7V to operate.
__________________
45mw WL Greenie since 2006
>1.1W 445nm Yobresal built

"The trouble with the world is not that people know too little, but that they know so many things that ain't so." - Mark Twain

"Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that." -Martin Luther King Jr.
ludwigfan is offline   Reply With Quote
Old 10-04-2010, 02:28 PM #11
Vaporizer's Avatar
Class 2 Laser
 
Join Date: Aug 2010
Location: Northern Hemisphere(Ohio,USA), Earth
Posts: 382
Rep Power: 25
Vaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant future
Vaporizer Vaporizer is offline
Class 2 Laser
Vaporizer's Avatar
 
Join Date: Aug 2010
Location: Northern Hemisphere(Ohio,USA), Earth
Posts: 382
Rep Power: 25
Vaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant futureVaporizer has a brilliant future
Default Re: 2 Volts with boost drive

One thing the OP didnt state or show a pic was the type of small battery. If its 3.6V from 3 batteries.....hmmmmm.....3 button cells or AAA's would be 4.5V. 3 AAA rechargeables should be 3.75V.
If its the 3 AAA "pill" it could be changed to 3 Li-Ion 10440's and should have sufficient input.
I don't want to be to hard on the OP. He only has 32 posts and he does seem to be trying.
One feature of the search on the forum I found "trying" is that if the word you search is someones name, part of it or the string occurs in it you get all of that persons posts to go through. Hmmm...I didn't think to try advanced to see if the name can be excluded...duh...

Edit: I re-read the OP. He said rechargeables. If he is using NiMH the internal resistance may not allow them to dump the 1A being asked for reducing the output voltage. He really needs to get a proper microboost it sounds like. If its a flashlight "microboost" it may have the Vf limited to 2V for the output. To many possibilities and assumptions being made.
__________________
Experience is what you get when you didn't get what you wanted.

Helpful Links:
Ohm's Law Calculator
Parallel Resistance Calculator
LM317 Current Calculator
LM317 Voltage Calculator

Building your 1st Laser?
I Want to Build a Laser
First Build Guide

Last edited by Vaporizer; 10-04-2010 at 04:47 PM.
Vaporizer is offline   Reply With Quote
Old 10-05-2010, 01:18 AM #12
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,144
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: 9,144
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: 2 Volts with boost drive

Is this LED white? I've never heard of a white LED dropping only 2V. Red, maybe, but not white.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 10-13-2010, 02:46 AM #13
Banned
 
Join Date: Aug 2010
Location: Minnesota
Posts: 365
Rep Power: 0
Braddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to behold
Braddubya Braddubya is offline
Banned
 
Join Date: Aug 2010
Location: Minnesota
Posts: 365
Rep Power: 0
Braddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to beholdBraddubya is a splendid one to behold
Default Re: 2 Volts with boost drive

Quote:
Originally Posted by Vaporizer View Post
One thing the OP didnt state or show a pic was the type of small battery. If its 3.6V from 3 batteries.....hmmmmm.....3 button cells or AAA's would be 4.5V. 3 AAA rechargeables should be 3.75V.
If its the 3 AAA "pill" it could be changed to 3 Li-Ion 10440's and should have sufficient input.
I don't want to be to hard on the OP. He only has 32 posts and he does seem to be trying.
One feature of the search on the forum I found "trying" is that if the word you search is someones name, part of it or the string occurs in it you get all of that persons posts to go through. Hmmm...I didn't think to try advanced to see if the name can be excluded...duh...

Edit: I re-read the OP. He said rechargeables. If he is using NiMH the internal resistance may not allow them to dump the 1A being asked for reducing the output voltage. He really needs to get a proper microboost it sounds like. If its a flashlight "microboost" it may have the Vf limited to 2V for the output. To many possibilities and assumptions being made.
Its a simple question. If I didnt state it clearly enough im sorry. Congrats on 225 posts....im not worthy I guess

Forget the battery and im not using a "flashlight microboost" I dont think that even exists. Im using a microboost...like a microboost diver...literally the only relevant component I have ever heard of called a microboost. Not sure how that was confusing.

The battery is 3.6v but it has internal circuitry for the built in charger and to drop the voltage im assuming. At the leads that connect to the original LED the voltage reads 2v. So the original question was will 2v be enough to power the microboost set at 1 amp? I wanted to just wire the driver and diode in place of the led.

I now know that it is not.

Last edited by Braddubya; 10-13-2010 at 02:48 AM.
Braddubya is offline   Reply With Quote
Old 10-13-2010, 07:41 AM #14
DrSid's Avatar
Class 3R Laser
 
Join Date: Jul 2010
Location: Olomouc, Czech Republic
Posts: 1,516
Rep Power: 153
DrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond repute
DrSid DrSid is offline
Class 3R Laser
DrSid's Avatar
 
Join Date: Jul 2010
Location: Olomouc, Czech Republic
Posts: 1,516
Rep Power: 153
DrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond reputeDrSid has a reputation beyond repute
Default Re: 2 Volts with boost drive

Well then those 2V are most probably result of current driver feeding the diode. The voltage might be totally different with different thing plugged into it. It's really hard to tell.
__________________
200mw (35mw compared) FocalPrice cheap green AA - Review
500mw (estimated) 445nm Minimalistic Orange Emos Direct Drive. Thread
1500mw (estimated) 445nm Jayrob's Solarforce L2P. Review
DrSid is offline   Reply With Quote
Old 10-14-2010, 04:10 PM #15
BShanahan14rulz's Avatar
Class 3B Laser
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
BShanahan14rulz BShanahan14rulz is offline
Class 3B Laser
BShanahan14rulz's Avatar
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
Default Re: 2 Volts with boost drive

if you are using the microboost, you don't need to use the flashlight driver. Sounds like a crappy driver anyways if it's feeding the LED 2V from a 3.6V source.

Basically, microboost takes X amount of power from batteries and sends that same X amount of power (minus driver inefficiencies) to the laser diode. If the batteries don't have enough voltage to drop across the laser diode, it pulls more current so that it can boost the voltage.

If you are a math-minded person, perhaps these equations will help:
It's a given that Power = (Current)*(Volts), or
Code:
P=I*V
Power from the batteries (Pin, as in P-sub-in) equals power to the diode (Pout), so:
Code:
Pin=Pout
substituting for Power, we get:
Code:
Iin*Vin=Iout*Vout
To explain the variables, Vin is the voltage that the battery supplies. Vout is the Vf of the laser diode at the current that you want to run it at. You can see that if the Vout is higher than Vin, the driver will need to pull more amps from the battery than it sends through the diode.

For example, let's say you are running a diode with a Vf of 6V@1A, from a 3.6V battery.
3.6V*Iin=6V*1A
Iin will be ~1.7A for the driver to supply the 6V at 1A to the diode. That means you better make sure your battery can supply 1.7A safely for this particular situation.

These equations are for your understanding, but do not take into account driver inefficiencies.
BShanahan14rulz is offline   Reply With Quote
Old 10-15-2010, 03:46 AM #16
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,144
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: 9,144
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: 2 Volts with boost drive

Yes, bypass the crap in there. It can't be that hard. Whatever it's doing to the power source, it's not adequate for a laser application.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   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 09:29 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