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Aluminum foil for ESC

Posted by Paul Thunder on November 17, 2012 at 11:48am

Hi

I have a 60amp esc and 850kv 450 watt motors. They should create so much noise.

I have ESCs in about 60cm distance of APM. maybe further. Connected ESCs close to motors and motor to motor distance is 1M and my center have about 40cm height and APM is over it.

Still I have a lot of noise. Yesterday I was going to lose my Quad. In middle of auto mode, it started to go so far and lost itself. I just switched to manual and droppen throttle because it was so so far from me. entire quad crashed!

I want to know, could I isolate signals of ESCs with covering entire ESC cables with aluminum foil, not ESC itself because it will cause heating ESCs, but ESC cables.

Or is there any other suggestion? I also have Toroid noise filters in ESC cables. Still so much noise and losing GPS in mid fly, before flying, I get at least 8 sat and HDOP of 1 or 0.9 within 3-4 min.

Please help!

Thanks

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Replies

  • R. D. Starwalt November 19, 2012 at 5:19am
    a) We need the logs to have a chance of determining why your plan went awry.

    More filtering will not hurt, but do not add much weight trying to fix a software problem. ;)

    -=Doug
  • Paul Thunder November 17, 2012 at 6:07pm

    a) What could be reason for runaway? How to solve it? Last command in my mission was to land, it started to go higher and higher then moved further and started decreasing.

    b) I can't move further, ESC is almost connected to ESC.

    c) I already have ferrite, do you mean more ferrites in a cable?

    Thanks

  • R. D. Starwalt November 17, 2012 at 4:01pm
    How are you determining that you have a lot of noise?

    Regarding shielding your wires, it may be eaiser to move the APM farther up. Distance is much better than adding the materials needed to shield.

    If you wanted to add anything, ferrite beads on the wiring would suppress high frequency noise.

    Your run away may have had nothing to do with noise. There are several cases reported here of similar behavior.

    -=Doug
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