APM 2.5 current output capabilities

Hi all,Is there a spec for APM 2.5 maximum current output? I'd like to connect GPS, sonar, telemetry, and OSD at the same time but can't find anywhere if the hardware can power all those at the same time. I'm using ESC power or can put on a regulator if necessary.Also I'd like to power some servos and I'm guessing I'll need alternate power as it says in the manual but is there a value for maximum current output somewhere ?Thanks

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  • Perfect, thanks for the info.
  • Developer

    I don't think there is a specific number anywhere. It also depends on how you finally configure your power setup.

    If you use the ESC on the Outputs or the APM Power Module (JP1 removed) there is a protective fuse and diode that protect the APM which limits the Inputs and Analog rails to 500mA. (see picture for power connections layout)

    3692665382?profile=original

    This is enough if you connect your RC Receiver, Sonar, Telemetry. It would probably support the minimOSD as well (i haven't tested the current drawn by that module)

    If you needed more current, you can connect a 5.0V BEC to the inputs and then you are only limited to the BEC current capabilities.

    Another solution if you use the PM or ESCs power from Outputs, is to take power for servos from Outputs rail and then just route signal wires from A10/A11 for a camera gimbal. Similar for OSD, this leaves your APM protected by the fuse and the diode.

    see http://code.google.com/p/arducopter/wiki/APM2RC

    see http://code.google.com/p/arducopter/wiki/AC2_Current#APM_2.5:_Using...

    see http://code.google.com/p/arducopter/wiki/APM25AltPower

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