If you have a story, rant or suggestion about limitations of power products (power supplies, ESC, etc) on your UAV, post it in the comments below.  I am specifically interested in feedback or thoughts on shortcomings in the power products that we at 3DR make, so we can incorporate that feedback in the next generation of products.

A little bit about myself:

I came to 3DR in early May, from General Atomics Electromagnetic Systems.  While at GA, I worked on EMALS, AAG and the Railgun team.  I am a graduate of UC San Diego with a BS in electrical engineering (circuits and systems depth).  My current role at 3DR is in engineering, where I mostly work on research, development, and new product design.  

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Comment by Joshua Johnson on June 11, 2013 at 7:10pm

Great to see 3DR taking initiatives to improve their products using the communities feedback! :)

Bravo 3D Robotics,

Joshua Johnson

Comment by Joshua Ott on June 11, 2013 at 7:12pm
This is the dude who is designing our power circuits from here on, so speak up folks.
Comment by Todd Stellanova on June 11, 2013 at 7:36pm

There was this existing thread about the TPS79133 3.3V regulator failing on the APM 2.5+ board:


My brand-new board is currently exhibiting this behavior (5V in, 0.8V out of the TPS79133) and I'm stillll waiting for an RMA from help@3drobotics. My APM 2.5 was working great until this failure.

Comment by Daniel Chote on June 11, 2013 at 7:50pm
I love the power module, but I think I can speak for a lot of people that 4s is a big restriction. A 6s capable module would be really helpful. I would also love to see a 3dr product for high power PWM.

Comment by Bill Bonney on June 11, 2013 at 9:02pm

I've suggested this part before http://www.mouser.com/ds/2/405/tps84250-109358.pdf it's 2.5A upto 50V and about the same price as the current part on the PM. I still think servos should be powered by an off board BEC, but have the APM more friendly to connect more outputs that just the 8 from one 5V rail currently. Well a design that the rail can be any voltage from 5-7V would be awesome.

Comment by mquintilian on June 11, 2013 at 9:45pm

I received a esc with the cap soldered on backwards causing it to explode when plugged in.

Comment by Mark Kellogg on June 11, 2013 at 9:59pm

I would like to see a new product line of 3, 4, or 6 in one ESCs in low, medium, and high current models.  There seem to be few available from competitors at this time.  I (and hopefully others) look at value and would pay a bit more for a quality built ESC..

Comment by b nevins on June 12, 2013 at 12:51am

6S on the APM power supply would be great, especially if it could provide enough to power device such as camera gimbals on it as well. Right now I am using a Talon 90 to power everything.  The thing I like about it best is it is capable of adjusting the voltage to the 5.37 when you have the jumper installed.  I am looking at buying one of the AttoPilot voltage monitors for the APM.  From what it sounded like, the limiting issue was the voltage regulator for the power module and not the actual shunt.

Comment by Christiaan van Vollenstee on June 12, 2013 at 1:08am

@Mark I just wanted to suggest the same thing, I think if they can go a step further and incorporate the pdb and the ESC's in one so it fits snug and give and option on the board to bypass a esc to plug in another on the board so the board can become a standard pdb again if one does not like that standard escs on the board. 

Comment by Jesse on June 12, 2013 at 3:40am

I'd love to see a power module that would be able to power a gimbal, say 3 servo's with at lest another amp or two of headroom for lights or something else...  


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