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 03-18-2012, 06:47 AM #1
laserluke's Avatar
Class 1M Laser
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
laserluke laserluke is offline
Class 1M Laser
laserluke's Avatar
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
Default New boost driver with IMS PCB

Here is my new high power and thermally efficient boost driver:
- insulated aluminum substrate (IMS) PCB for exceptional thermal efficiency
- current output exceed 2.5A
- very high precision current control and multi-tourn trimmer
- grounded load (only 1 wire to connect)
- open and short load protection
The PCB can be connected directly to the heatsink to obtain a perfect thermal contact.
The board is currently under tests and performs very well.
It is possible to make commercial boards if anyone interested.





Attached Thumbnails
New boost driver with IMS PCB-photo1.jpg   New boost driver with IMS PCB-photo2.jpg   New boost driver with IMS PCB-ims.jpg  



Last edited by laserluke; 03-18-2012 at 10:13 AM.
laserluke is offline   Reply With Quote







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







Old 03-18-2012, 07:57 AM #2
Class 1M Laser
 
Join Date: Feb 2012
Posts: 249
Rep Power: 19
mattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud of
mattco2 mattco2 is offline
Class 1M Laser
 
Join Date: Feb 2012
Posts: 249
Rep Power: 19
mattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud ofmattco2 has much to be proud of
Default Re: New boost driver with IMS PCB

Looks nice price?? And it looks quite complicated
mattco2 is offline   Reply With Quote
Old 03-18-2012, 08:49 AM #3
laserluke's Avatar
Class 1M Laser
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
laserluke laserluke is offline
Class 1M Laser
laserluke's Avatar
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
Default Re: New boost driver with IMS PCB

Quote:
Originally Posted by mattco2 View Post
Looks nice price?? And it looks quite complicated
The IMS PCB costs the same as a dual layer standard FR4 PCB. The technology limit is that an IMS PCB is a single layer PCB.
The circuit has an advanced current control to maintain an high efficiency.
As an example a driver based on TPS63020 with standard schematic uses a shunt resistor of value 0.5/Iload. For 2A output the resistor is 0.25ohm so the thermal power dissipated only by the shunt resistor is R*I^2=1W !!! reducing significantly the total efficiency of the driver and battery life.
The advanced current control reduces the dissipation of a factor of 25 and increases the control precision. The additional circuitry is almost ininfluent on total cost.

Last edited by laserluke; 03-18-2012 at 08:55 AM.
laserluke is offline   Reply With Quote
Old 03-18-2012, 09:14 AM #4
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: New boost driver with IMS PCB

My only question is how the designer compensated for the stray capacitance of the PCB, and how, if at all, it affects the circuit. It looks wonderfuly designed though, that is for sure.
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert
Sigurthr is offline   Reply With Quote
Old 03-18-2012, 10:30 AM #5
sinner's Avatar
Class 3B Laser
 
Join Date: Oct 2011
Location: Dubai, UAE
Posts: 2,567
Rep Power: 1156
sinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond repute
sinner sinner is offline
Class 3B Laser
sinner's Avatar
 
Join Date: Oct 2011
Location: Dubai, UAE
Posts: 2,567
Rep Power: 1156
sinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond reputesinner has a reputation beyond repute
Default Re: New boost driver with IMS PCB

Sounds pretty great, since we need 1.8A at most..
__________________
Sinner's Custom Laser Hosts
The Cypreus-EDC Series - All Copper Custom Laser Hosts and Prebuilt Kits.
sinner is offline   Reply With Quote
Old 03-18-2012, 10:45 AM #6
laserluke's Avatar
Class 1M Laser
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
laserluke laserluke is offline
Class 1M Laser
laserluke's Avatar
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
Default Re: New boost driver with IMS PCB

Quote:
Originally Posted by sigurthr View Post
my only question is how the designer compensated for the stray capacitance of the pcb, and how, if at all, it affects the circuit. It looks wonderfuly designed though, that is for sure.
I have observed no differences in circuit behaviour between standard FR4 PCB prototype (attached photo) and IMS PCB. The stray capacitance has negligible effects.
Many thanks for the compliments

Attached Thumbnails
New boost driver with IMS PCB-driver_prototype.jpg  
laserluke is offline   Reply With Quote
Old 03-18-2012, 11:48 AM #7
laserluke's Avatar
Class 1M Laser
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
laserluke laserluke is offline
Class 1M Laser
laserluke's Avatar
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
Default Re: New boost driver with IMS PCB

Quote:
Originally Posted by sinner View Post
Sounds pretty great, since we need 1.8A at most..
I'm building a 445nm laser with this driver and an Ultrafire C8 host. I'll post pictures very soon

Attached Thumbnails
New boost driver with IMS PCB-ultrafire_c8.jpg  
laserluke is offline   Reply With Quote
Old 03-18-2012, 12:27 PM #8
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,690
Rep Power: 38652
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: 15,690
Rep Power: 38652
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: New boost driver with IMS PCB

Nice job on the design...
What is the diameter of that PCB ??


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 03-18-2012, 12:49 PM #9
laserluke's Avatar
Class 1M Laser
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
laserluke laserluke is offline
Class 1M Laser
laserluke's Avatar
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
Default Re: New boost driver with IMS PCB

Quote:
Originally Posted by lasersbee View Post
Nice job on the design...
What is the diameter of that PCB ??


Jerry
Many thanks
The diameter is 1 inch (2.54cm). Fits perfectly in a cree torch.
You can mount the driver on top of the cree led pill as in this post (the driver needs only a single 18650 battery):
2.05 Watt 445nm Laser in Cree SacredFire NF-009 Mohrenberg Heatsink+Tutorial

Last edited by laserluke; 03-18-2012 at 01:49 PM.
laserluke is offline   Reply With Quote
Old 03-19-2012, 08:03 AM #10
foulmist's Avatar
Class 3R Laser
 
Join Date: Mar 2011
Location: Smolyan, Bulgaria
Posts: 1,076
Rep Power: 107
foulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond repute
Send a message via Skype™ to foulmist
foulmist foulmist is offline
Class 3R Laser
foulmist's Avatar
 
Join Date: Mar 2011
Location: Smolyan, Bulgaria
Posts: 1,076
Rep Power: 107
foulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond reputefoulmist has a reputation beyond repute
Send a message via Skype™ to foulmist
Default Re: New boost driver with IMS PCB

nice build! somewhat big but still nice :P

What's the input/output voltage range?

Last edited by foulmist; 03-19-2012 at 08:04 AM.
foulmist is offline   Reply With Quote
Old 03-19-2012, 10:38 AM #11
Class 2 Laser
 
Join Date: Mar 2011
Posts: 472
Rep Power: 147
TheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond repute
TheReddish TheReddish is offline
Class 2 Laser
 
Join Date: Mar 2011
Posts: 472
Rep Power: 147
TheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond reputeTheReddish has a reputation beyond repute
Default Re: New boost driver with IMS PCB

I would like to try a boost driver one day, for a handheld, I can make one for a labby, but for handheld I have used nothing but linear so far because of availability as I have been doing this a little less than a year, so I am going to lurk this thread to see what happens, but you have my interest.
TheReddish is offline   Reply With Quote
Old 03-19-2012, 05:45 PM #12
laserluke's Avatar
Class 1M Laser
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
laserluke laserluke is offline
Class 1M Laser
laserluke's Avatar
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
Default Re: New boost driver with IMS PCB

Quote:
Originally Posted by foulmist View Post
nice build! somewhat big but still nice :P

What's the input/output voltage range?
The input voltage range is 2.4V to 25V.
The output voltage absolute limit is the maximum switch voltage of 42V. The current control circuit limits the output voltage to 12V to protect output capacitors but this value can be easily changed replacing a component and using higher voltage output capacitors. The maximum switch current is 6A.
The driver can supply more than one laser diode connected in series.
laserluke is offline   Reply With Quote
Old 03-19-2012, 07:56 PM #13
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: New boost driver with IMS PCB

You know, folks in the flashlight arena need a nice, high-current boost driver too. The current generation of emitters is generally powered up at about 3A, dropping ~3.3V across each LED, and wired in series. It would be bomb to have a sleeper light that blasts out ~3000lm off of one 18650 sized cell ;-) What sort of input voltage and current requirements would need to be met to get this to push 3A at 10.5V?
BShanahan14rulz is offline   Reply With Quote
Old 03-19-2012, 09:20 PM #14
laserluke's Avatar
Class 1M Laser
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
laserluke laserluke is offline
Class 1M Laser
laserluke's Avatar
 
Join Date: Mar 2012
Posts: 173
Rep Power: 21
laserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant futurelaserluke has a brilliant future
Default Re: New boost driver with IMS PCB

Quote:
Originally Posted by BShanahan14rulz View Post
You know, folks in the flashlight arena need a nice, high-current boost driver too. The current generation of emitters is generally powered up at about 3A, dropping ~3.3V across each LED, and wired in series. It would be bomb to have a sleeper light that blasts out ~3000lm off of one 18650 sized cell ;-) What sort of input voltage and current requirements would need to be met to get this to push 3A at 10.5V?
The "magic word" is efficiency. It's not trivial to exact calculate the efficiency of a boost converter.
Here you can find an article with problem analysis.
Anyway let's try to do a simple estimation. The power required for your "thermonuclear torch " is 3*10.5=31.5W
Suppose to have a converter efficiency of 80%... The input power required will be 31.5/0.8=39.375W... with a single 3.7V cell the required current is 39.375/3.7=10.642A !!! too much for the cell and for the driver.
If you try to recalculate with 2 cells (7.4V) and the same efficiency the current will be 5.32A. This value is very close to the switch limit of 6A and probably beyond the cell's possibilities...
If you try to recalculate with 3 cells (11.1V) the voltage is greater than that required by your leds (10.5V) so you can use a buck (better efficiency) or linear regulator (worst efficiency)...
...or you can use two boost drivers each with half load... the limit is fantasy
laserluke is offline   Reply With Quote
Old 03-20-2012, 12:22 AM #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: New boost driver with IMS PCB

Oh, I see, this is why you mentioned the 6A switch current limit earlier! Thanks for that explanation
BShanahan14rulz is offline   Reply With Quote
Old 03-20-2012, 12:43 AM #16
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: New boost driver with IMS PCB

Wow that look awesome. Great work.

Would you have the ability and desire to post a test video for us like the one below. The main thing I would like to see is if the current stays constant @ 1.8A as the voltage decreases. Here is one I tested that did not.

DTR 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 03:45 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