Discussions

Max voltage for PM voltage on APM board

Posted by Al Creigh on December 18, 2014 at 12:08pm

Hi guys,

I have a question regarding the input voltage for the APM board. I know the PM distributes a voltage of 5.3V through the BEC. I was wondering what the max input voltage is on this rail? If I were to use a 6V BEC on this would it fry my board or would this not be good?

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Replies

Developer

Bill Bonney December 18, 2014 at 2:17pm

The short answer is don't. No more than 5.5V on the input works best. The board might survive a clean 6V signal, but if it spikes above 6V it's probably toast.

http://copter.ardupilot.com/wiki/common-apm25-and-26-overview/#Powe...

cheaper to but a BEC that is 5.5V out.

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