Tuesday, August 28, 2007

Noisy servos :(

I have found out the the E_Sky micro servos are the main source of radio interference... I have noticed this after replacing one failed servo, the radio glitches have decreased drastically. Note that the servo was working properly before it failed, but apparently causing severe interference.

Then i have connected an oscilloscope to the 5V BEC power supply and was not surprised to see huge (about 1V) ripples whenever one of the servos was operating. I solved this noisy power supply problem by using one ESC's BEC to feed the Receiver, Gyro and Y-Tail mixer, and the other ESC's BEC to feed the servos.

Now the newly (!) replaced servo is about to fail once again (shaking from time to time and apparently causing interference once again); so i have ordered a pair of other brand servos from HK. Let's see if they are better (link).

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