MR60

Powering APM with Ubec and JP1 off ?

Posted by Hugues on September 15, 2013 at 9:18am

Hello,

I have a question about powering the APM based on a UBEC (not via 3DR power module):

-JP1 is now off

-Can I then plug a UBEC 5,3V directly on the APM A0-A11 side rail ?

 

Or do I have to plug on the servo outputs and put JP1 back on ? I try not to have to put JP1 back on as I do not wnat to dismantle everything, it's such a pain.

 

(I have to replace the 3DR power module by an Attopilot current and votlage sensor, as my octo goes over 90 amps which is the 3DR component limit. Too bad 3DR does not have a more powerful power module for big crafts...maybe an idea for a next product ?). 

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Replies

  • MR60
    Hugues September 15, 2013 at 12:41pm

    Thx Bill & Iskess (i will use a 3S battery to power then my gimbal and APM) because the main battery will be 6S

  • iskess September 15, 2013 at 12:05pm
    Read through this for a detailed tutorial: http://www.rcgroups.com/forums/showpost.php?p=24263408&postcount=1
    Summary: connect UBEC to input side with jp1 open. Use another UBEC on output side if needed for servos.
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  • MR60
    Hugues September 15, 2013 at 10:47am
    Another idea: could i keep the 3DR module just to power the APM, thus benefiting from the power protection circuit, but using the attopilot to feed the motors and measure current and voltage?
  • Developer
    Bill Bonney September 15, 2013 at 9:31am
    You can supply the power to the A side if its only 5V. (Measure it, 5.5V is too high) but you do bypass the protection circuit for over voltage. So don't over voltage otherwise the baord is toast.
    See http://copter.ardupilot.com/wiki/common-apm25-and-26-overview/#Powe...
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