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 05-05-2012, 08:07 AM #17
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: 17mm buck-boost driver (TPS63020 and LT6106)

I would suggest caps are changed to 10V.

Include vias points the the bottom layer for a plain ground - both beneath the IC thermal pad, and close the caps negative connections.

Also those inductance traces seem awfully thin

EDIT: already done



Last edited by foulmist; 05-07-2012 at 09:36 AM.
foulmist is offline   Reply With Quote







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







Old 05-05-2012, 10:55 AM #18
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: 17mm buck-boost driver (TPS63020 and LT6106)

I have added the eagle files for the board in the first post so anyone with goodwill can modify the layout and/or the schematic.

EDIT:
foulmist, please let us know the manufacturer and part number for 22uF, 10V with package 0603 capacitors.
The schematic is inconsistent without pcb vias... there are always been... check the "drill" and "drill.info" excellon files included in the gerber archive

Last edited by laserluke; 05-07-2012 at 08:43 PM.
laserluke is offline   Reply With Quote
Old 05-05-2012, 11:36 PM #19
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: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by AnthoT View Post
I'll order a few and let you know how they work that's why I was asking a parts list
I have updated the board.
Please be sure to send to manufacturer the updated gerber files.
I will follow you during the testing.

Edit: FINAL VERSION, happy testing

Last edited by laserluke; 05-06-2012 at 05:05 PM.
laserluke is offline   Reply With Quote
Old 05-06-2012, 12:43 AM #20
AnthoT's Avatar
Class 3R Laser
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
AnthoT AnthoT is offline
Class 3R Laser
AnthoT's Avatar
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
Default Re: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by laserluke View Post
I have updated the board.
Please be sure to send to manufacturer the updated gerber files.
I will follow you during the testing.
Sure i'll send those
__________________
FTLasers
AnthoT is offline   Reply With Quote
Old 05-06-2012, 05:57 PM #21
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: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by AnthoT View Post
Sure i'll send those
I have posted the final version ready for testing.
In this post, the user "rfhv" by using a similar schematic but with a less flexible (fixed) gain in the current sensing (zxct1009), has obtained an exceptional ripple of less than 10mA at 2A output (final accuracy of 0.5% and efficiency of 82% ).
With this open source project, by adjusting the values of R5, C7 and the optional C8, i think you can obtain the same, if not better, result.
You have also more flexibility (variable gain with lt6106 and constant output impedance of the current sensing circuit) by using the multi turn trimmer to set the output current.

Last edited by laserluke; 05-07-2012 at 08:37 PM.
laserluke is offline   Reply With Quote
Old 05-07-2012, 12:36 AM #22
AnthoT's Avatar
Class 3R Laser
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
AnthoT AnthoT is offline
Class 3R Laser
AnthoT's Avatar
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
Default Re: 17mm buck-boost driver (TPS63020 and LT6106)

Alright so ill be ordering 25 of these ill only be making 2-3 though so if anyone wants PCB's ill have them
__________________
FTLasers
AnthoT is offline   Reply With Quote
Old 05-07-2012, 01:42 AM #23
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: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by AnthoT View Post
Alright so ill be ordering 25 of these ill only be making 2-3 though so if anyone wants PCB's ill have them
Very good
You can ask to pcb manufacturer to not apply the solder resist to bottom side of the pcb, which is the ground plane, and/or to manufacture it with a thin dielectric (less than the standard 1.6mm... i think 0.8mm is easily available) so to obtain a very good thermal contact when you attach the pcb to the heat sink.
Let me know...

Last edited by laserluke; 05-07-2012 at 01:48 AM.
laserluke is offline   Reply With Quote
Old 05-07-2012, 01:47 AM #24
AnthoT's Avatar
Class 3R Laser
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
AnthoT AnthoT is offline
Class 3R Laser
AnthoT's Avatar
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
Default Re: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by laserluke View Post
Very good
You can ask to pcb manufacturer to not apply the solder resist to bottom side of the pcb, which is the ground plane, and/or to manufacture it with a thin dielectric (less than the standard 1.6mm... i think 0.8mm is easily available) so to obtain a very good thermal contact.
Let me know...
I get all my PCB's 0.8mm
__________________
FTLasers
AnthoT is offline   Reply With Quote
Old 05-07-2012, 10:16 PM #25
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: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by foulmist View Post
be sure to test them on scope first with a test load. And sharing the results would be nice
Quote:
Originally Posted by AnthoT View Post
Alright so ill be ordering 25 of these ill only be making 2-3 though so if anyone wants PCB's ill have them
I think that would be nice and useful the foulmist's contribution to testing and design review. After all foulmist is a good man and could be useful to have two "test sites" in Canada and Bulgaria at about 7700 Km of distance with no risks in case of explosion
What do you think?

Last edited by laserluke; 05-08-2012 at 01:50 AM.
laserluke is offline   Reply With Quote
Old 05-07-2012, 10:52 PM #26
AnthoT's Avatar
Class 3R Laser
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
AnthoT AnthoT is offline
Class 3R Laser
AnthoT's Avatar
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
Default Re: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by laserluke View Post
I think that would be nice and useful the foulmist's contribution to testing and design review. After all foulmist is a good man and could be useful to have two "test sites" in Canada and Bulgaria at about 7700 Km of distance with no risks in case of explosion.
What do you think?
Explosion!?!??????? I highly doubt any driver explodes..... I will be sending him one as he has a scope and it would really help show how stable this driver is
__________________
FTLasers
AnthoT is offline   Reply With Quote
Old 05-08-2012, 01:48 AM #27
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: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by AnthoT View Post
Explosion!?!??????? I highly doubt any driver explodes..... I will be sending him one as he has a scope and it would really help show how stable this driver is

should have been a joke but i forgot the emoticon after the word "explosion"
laserluke is offline   Reply With Quote
Old 05-08-2012, 01:50 AM #28
AnthoT's Avatar
Class 3R Laser
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
AnthoT AnthoT is offline
Class 3R Laser
AnthoT's Avatar
 
Join Date: Jan 2012
Location: Canada
Posts: 2,137
Rep Power: 380
AnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond reputeAnthoT has a reputation beyond repute
Default Re: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by laserluke View Post
should have been a joke but i forgot the emoticon after the word "explosion"
Ah ok
__________________
FTLasers
AnthoT is offline   Reply With Quote
Old 05-08-2012, 02:26 AM #29
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: 17mm buck-boost driver (TPS63020 and LT6106)

To find the right values, i would suggest to start testing with no C8 capacitor (you can add later to minimize the feedback ripple) and smaller values than those showed in the schematic for R5 and C7.
You can start with 220ohm and 10nF and starts to increase the capacitor.
Don't forget to start with the trimmer turned completely ccw and tests all the output current range for the actual values of R5, C7

Last edited by laserluke; 05-08-2012 at 02:32 AM.
laserluke is offline   Reply With Quote
Old 05-08-2012, 05:23 AM #30
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: 17mm buck-boost driver (TPS63020 and LT6106)

I will sure be glad to help

Quote:
foulmist, please let us know the manufacturer and part number for 22uF, 10V with package 0603 capacitors.
hah that's a trick question isn't it I was thinking of replacing the caps with 22uF 10V but at least 0805. As there isn't a 0603 cap rated for that. Or at least I coudn't find on Digikey and farnell. . I think there is enough space for the output caps to fit the 2x0805 ?
foulmist is offline   Reply With Quote
Old 05-08-2012, 09:13 AM #31
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: 17mm buck-boost driver (TPS63020 and LT6106)

Quote:
Originally Posted by foulmist View Post
I will sure be glad to help



hah that's a trick question isn't it I was thinking of replacing the caps with 22uF 10V but at least 0805. As there isn't a 0603 cap rated for that. Or at least I coudn't find on Digikey and farnell. . I think there is enough space for the output caps to fit the 2x0805 ?
There is no space on the board for 2x0805 (or it's very difficult...) but i think it's not necessary to use 10V capacitors because the maximum rated output voltage of TPS63020 is 5.5V (from datasheet here) and the TI itself mounts 6.3V capacitors in their evaluation board here. The evaluation board is usually used as a starting point for design and for obtainable performances.

Last edited by laserluke; 05-08-2012 at 09:23 AM.
laserluke is offline   Reply With Quote
Old 05-08-2012, 09:19 AM #32
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: 17mm buck-boost driver (TPS63020 and LT6106)

Perhaps it's not necessary but I always like to put caps with higher voltage ratings. Just to be safe (although you can't say you will be safe even then but still... )

so.. 0603 6.3V it is
foulmist 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


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f67/17mm-buck-boost-driver-tps63020-lt6106-74139.html
Posted By For Type Date
3x Nichia 1x 18650er EDC-Fluter | Taschenlampen Forum This thread Refback 02-12-2017 04:07 AM
TPS63020 driver for laser 445nm | LASERS.ORG.RU This thread Refback 02-14-2016 12:06 AM
ATNEL tech-forum ? Szukam biblioteki TPS63020. - forum.atnel.pl This thread Refback 04-01-2015 09:55 PM
3x Nichia 1x 18650er EDC-Fluter - Seite 4 This thread Refback 04-28-2014 09:02 PM
Кастомные санвэйчики с триплами Ничий. Изучение спроса. - Разработки от МОНАРХ и AVSel - Страница 109 - FONAREVKA.RU - Всё о фонарях и осветительной технике This thread Refback 07-29-2013 01:12 PM










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 10:21 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