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Re: [Paparazzi-devel] Electrical connections in the airborne equipment.

From: Felix Ruess
Subject: Re: [Paparazzi-devel] Electrical connections in the airborne equipment.
Date: Wed, 14 Jul 2010 15:19:32 +0200


I think you might want to remove the GND connection between the ESC
and Twog to not create a ground loop.
Also you probably should connect the GND of the servos to GND from the
BEC instead of the Twog to avoid the higher current over the Twog
ground connection.
Not sure what is the best way to connect ground to the PPM encoder,
but I would try to avoid a ground loop there as well.

Just my 2 cent, please correct me if I'm wrong.

Cheers, Felix

On Wed, Jul 14, 2010 at 3:01 PM, antoine drouin <address@hidden> wrote:
> Hey
> Awsome schematics, please don't hesitate to upload it on the wiki
> Regards
> Poine
> On Wed, Jul 14, 2010 at 2:17 PM, Helge Walle <address@hidden> wrote:
>> Here is a simple sketch showing how I would like to power the onboard
>> electronics in a TWOG setup.
>> The plan is to use these connections for my next plane. On my current
>> TwinstarII I use +5V from the TWOG to power the servos. Compared to the
>> sketch the difference is that +5V is now taken from the BEC.
>> There is a jumper on the PPM board for separating the +5V connection, but I
>> kept it in place and just left out the +5V lead between the PPM board and
>> TWOG.
>> I use 6-7cm long servo cables between the R/C receiver and PPM board. Do you
>> think that the +5V and Gnd in parallell in each servo cable represents a
>> problem?
>> Any comments would be welcome.
>> Circuit diagram
>> Best regards,
>> Helge.
>> _______________________________________________
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>> address@hidden
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