Hello,
I am building a hex with 14" props for lifting a mid sized camera. I am pretty set on running a 4S setup, as I can share batteries with my other quad.
I calculate in hover I should be drawing around 30 amps. That is not a problem, but RC-calc is showing a max current of over 120 amps at full throttle. Granted, full throttle climbouts are a rare thing and I don't know that it will actually pull this, but that has me concerned a bit.
The 3DR module only lists its 'maximum sensing current'. For APM it is 90 amps and Pixhawk it is 60 amps.
http://store.3drobotics.com/products/apm-power-module-with-xt60-connectors
Can the module pass my max current without danger? Blowing the shunt and having no power would be a bummer.
Any insight is greatly appreciated!
Replies
I found my answer. The resistor is rated for 90 amps only.
This presents a dilemma as compassmot relies on current measurement.
I may be able to swap out the resistor for another one and change the calibration, or maybe use a hall effect sensor?
Or Maybe:
http://copter.ardupilot.com/wiki/common-using-a-current-sensor/
Joe