Lynxmotion Tech Support

www.lynxmotion.com
Join the Accelerator Program
It is currently Thu Apr 24, 2014 12:31 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 72 posts ]  Go to page 1, 2, 3, 4, 5  Next
Author Message
 Post subject: LiPo Wars!
PostPosted: Fri Mar 19, 2010 2:26 pm 
Offline
Salmon of Retribution
User avatar

Joined: Fri Jul 28, 2006 6:41 pm
Posts: 540
Location: The Plane of Suck.
8)
Attachment:
LiPo.JPG
LiPo.JPG [ 53.95 KiB | Viewed 2240 times ]


Are any words really necessary here? :wink:

_________________
Curiously enough, the only thing that went through the mind
of the bowl of petunias as it fell was "Oh no, not again."

James "Don't call me Jim" Frye
Lynxmotion, Inc
http://www.lynxmotion.com


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Fri Mar 19, 2010 3:19 pm 
Offline
Robot Guru
User avatar

Joined: Mon Oct 31, 2005 4:03 pm
Posts: 3598
Location: Houston, Texas
Fish (Admin) wrote:
8)
Attachment:
LiPo.JPG


Are any words really necessary here? :wink:


9000... do I hear 9000mAh? :lol:

_________________
Mike

The robotics nut.


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Fri Mar 19, 2010 3:22 pm 
Offline
Roboteer

Joined: Thu Oct 15, 2009 10:49 am
Posts: 73
Do i hear 16000: http://www.all-battery.com/74volt-16ahh ... 31187.aspx ?

_________________
Results were inconclusive, the darn thing blew up!


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Fri Mar 19, 2010 3:28 pm 
Offline
Salmon of Retribution
User avatar

Joined: Fri Jul 28, 2006 6:41 pm
Posts: 540
Location: The Plane of Suck.
Spartan001 wrote:

That's all good and well, but the one I posted will actually fit in our robots. :roll: :lol:

_________________
Curiously enough, the only thing that went through the mind
of the bowl of petunias as it fell was "Oh no, not again."

James "Don't call me Jim" Frye
Lynxmotion, Inc
http://www.lynxmotion.com


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Fri Mar 19, 2010 3:52 pm 
Offline
Robot Guru
User avatar

Joined: Thu Nov 09, 2006 6:46 am
Posts: 2099
Location: Norway
:shock:
what!...
:evil:



:lol:

No words necessary James...

_________________
Kåre Halvorsen, Zenta
-----------------------------------------
Zenta's blog
http://zentasrobots.com/
Zenta's YouTube channel
http://www.youtube.com/ZentaOlbaid
-----------------------------------------


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 4:39 pm 
Offline
Lynxmotion Founder
User avatar

Joined: Mon Oct 31, 2005 11:46 am
Posts: 9325
Location: my quiet place
I wanted to ask here what are the most popular regulators out there for 7.4vdc LiPo in, to 6.0vdc output, capable of delivering 10 amps? Working with Basic Micro for a solution. Looking for examples and for a wish list from users.

  • Adjustable output from 5.5vdc to 6.5vdc.
  • Auto cut-off for LiPo minimum discharge voltage protection.
  • Pretty blue power LED.

Feedback is welcome!

_________________
Jim Frye, the Robot Guy
http://www.lynxmotion.com
I've always tried to do my best...


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 4:42 pm 
Offline
Lynxmotion Founder
User avatar

Joined: Mon Oct 31, 2005 11:46 am
Posts: 9325
Location: my quiet place
First complete charge/discharge cycle. The thing did better than advertised. 8432mA delivered! :shock: 8)

_________________
Jim Frye, the Robot Guy
http://www.lynxmotion.com
I've always tried to do my best...


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 5:12 pm 
Offline
Robot Guru
User avatar

Joined: Thu Nov 09, 2006 6:46 am
Posts: 2099
Location: Norway
Robot Dude wrote:
I wanted to ask here what are the most popular regulators out there for 7.4vdc LiPo in, to 6.0vdc output, capable of delivering 10 amps? Working with Basic Micro for a solution. Looking for examples and for a wish list from users.

  • Adjustable output from 5.5vdc to 6.5vdc.
  • Auto cut-off for LiPo minimum discharge voltage protection.
  • Pretty blue power LED.

Feedback is welcome!


First, the regulator must be a switch regulator, not linear (to much waste of energy).
I believe I've mentioned the Turnigy regulators several times now. :roll:
Image

I've been using them for several years now, and they seem to work ok.
But I would like to have an auto cut-off feature and also some sort of audio feedback when the voltage are getting close to critical. Adjustable threshold would also be great since some 2S LiPo's allow discharge voltage down to 5,6v. And 10 amps continuously would be great!

Maybe adjustable output voltage up to 7,4v since a top charged 2S LiPo deliver <8,4 volt, I'm not sure if a high end digital 7,4 volt servo can handle a fully charged 2S LiPo ?

_________________
Kåre Halvorsen, Zenta
-----------------------------------------
Zenta's blog
http://zentasrobots.com/
Zenta's YouTube channel
http://www.youtube.com/ZentaOlbaid
-----------------------------------------


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 5:14 pm 
Offline
Robot Guru
User avatar

Joined: Thu Nov 09, 2006 6:46 am
Posts: 2099
Location: Norway
Robot Dude wrote:
First complete charge/discharge cycle. The thing did better than advertised. 8432mA delivered! :shock: 8)


stop it! :evil:






:wink:

_________________
Kåre Halvorsen, Zenta
-----------------------------------------
Zenta's blog
http://zentasrobots.com/
Zenta's YouTube channel
http://www.youtube.com/ZentaOlbaid
-----------------------------------------


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 5:24 pm 
Offline
Lynxmotion Founder
User avatar

Joined: Mon Oct 31, 2005 11:46 am
Posts: 9325
Location: my quiet place
Here is an image of the battery inside the 3DOF T-Hex chassis. :D It's a tight fit... 8)
Attachment:
thexbtry.jpg
thexbtry.jpg [ 609.03 KiB | Viewed 2177 times ]

_________________
Jim Frye, the Robot Guy
http://www.lynxmotion.com
I've always tried to do my best...


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 5:30 pm 
Offline
Robot Guru
User avatar

Joined: Mon Oct 31, 2005 4:03 pm
Posts: 3598
Location: Houston, Texas
Robot Dude wrote:
Here is an image of the battery inside the 3DOF T-Hex chassis. :D It's a tight fit... 8)
Attachment:
thexbtry.jpg


Oh my! .... That looks REALLLLLY good! :shock:

_________________
Mike

The robotics nut.


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 5:48 pm 
Offline
Lynxmotion Founder
User avatar

Joined: Mon Oct 31, 2005 11:46 am
Posts: 9325
Location: my quiet place
zenta wrote:
First, the regulator must be a switch regulator, not linear (to much waste of energy).
I believe I've mentioned the Turnigy regulators several times now. :roll:


Yeah I know, thanks for posting. I'm also looking for what others have used. ;)

zenta wrote:
I've been using them for several years now, and they seem to work ok.
But I would like to have an auto cut-off feature and also some sort of audio feedback when the voltage are getting close to critical. Adjustable threshold would also be great since some 2S LiPo's allow discharge voltage down to 5,6v. And 10 amps continuously would be great!

Maybe adjustable output voltage up to 7,4v since a top charged 2S LiPo deliver <8,4 volt, I'm not sure if a high end digital 7,4 volt servo can handle a fully charged 2S LiPo ?


Thanks for the cool ideas. 8)

_________________
Jim Frye, the Robot Guy
http://www.lynxmotion.com
I've always tried to do my best...


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 5:51 pm 
Offline
Lynxmotion Founder
User avatar

Joined: Mon Oct 31, 2005 11:46 am
Posts: 9325
Location: my quiet place
Here are a couple images of the 3DOF T-Hex. I did get the wires under control. I did get the foot switches installed, but not wired. I did make a windshield for fun. lol I still need to upgrade to aluminum servo horns. There is a video in the works. Hopefully a little better than the last one. ;)

Attachment:
thexbtr2.jpg
thexbtr2.jpg [ 378.93 KiB | Viewed 2171 times ]


Attachment:
thexbtr3.jpg
thexbtr3.jpg [ 481.83 KiB | Viewed 2168 times ]

_________________
Jim Frye, the Robot Guy
http://www.lynxmotion.com
I've always tried to do my best...


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 6:43 pm 
Offline
Robot Guru
User avatar

Joined: Thu Nov 09, 2006 6:46 am
Posts: 2099
Location: Norway
:shock:
--
8)
--
:twisted:

Wow! You did a great job Jim. I'm not envy at all about that tiny LiPo...

...ok ok.... That battery was just perfect for T-Hex. Where can I buy one? :lol:

Those led made the magic! Great pictures, looking very good!

BTW, How is the 4DOF version going?

_________________
Kåre Halvorsen, Zenta
-----------------------------------------
Zenta's blog
http://zentasrobots.com/
Zenta's YouTube channel
http://www.youtube.com/ZentaOlbaid
-----------------------------------------


Top
 Profile  
 
 Post subject: Re: LiPo Wars!
PostPosted: Mon Mar 22, 2010 7:04 pm 
Offline
Roboteer
User avatar

Joined: Sun Feb 08, 2009 8:50 pm
Posts: 93
Location: Mesa, AZ
I like Castle Creations switching regulator. Takes up to 25V in and 4.8 to 9V out at 10 amp peak. It comes factory-set at 5.1V which is perfect for my onboard camera. Adjustment is via 'External USB interface' sold separately.

I also like the MPI 6V reg, but I solder both set of leads-in together, to get the max current possible.

Wish List:
1. Lipo CUTOFF!!! Noisy robots, remote piloting and too many blinky LEDs means any kind of warning device(s) do not always work.
2. Inline power switch
3. 10 amp continuous is nice
4. No screw terminals please! Heavy Duty wire (16g min) soldered firmly to the board.
5. Maybe reverse polarity protection.
6. No hacking or additional purchase necessary to adjust output.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 72 posts ]  Go to page 1, 2, 3, 4, 5  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: abomba and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
© 2014 RobotShop Distribution inc. All rights reserved.
Powered by phpBB® Forum Software © phpBB Group