I was wondering if there's a possibility to drive a BLDC, like this one here (Radio Control Planes, Drones, Cars, FPV, Quadcopters and more - Hobbyking) like a servo?
I'm talking about quick movements like forward, stop, backward, stop, backward, etc...
Did quite some research already but I didn't manage to find any threads/posts which were really helpful.
When googling a few threads from this forum here pop up but a few of them state it won't work, other ones do say it will work without any problems.
I'd like to build a frame based on the Euler Lock (http://1.bp.blogspot.com/-5CSgWIDjmQU/UWxPsbs3msI/AAAAAAAAE2M/e5AdhqmNHaE/s1600/euler-angles.png) and so those gimbals would be just perfect since they come in a round shape with not a lot of height.
Sorry if I missed any threads here but I'm currently going nuts to the question if this would work to have them driven by an Arduino and a motor driver.
Cheers and thank you all so much for reading,
Mario
You'll need a 3-phase bridge to drive it and an encoder or similar feeding into a PID loop that
controls the phase of output to the bridge. Its an interesting control problem as you probably
don't know the position of the rotor accurately enough to know the electrical phase angle well,
but you can get to change the rate of change of the electrical phase and derive that from the
position error.
[ put another way you'll need to know something about control theory and PID control ]
You can drive it like a stepper motor. The normal use of this as a gimbal is basically similar to a microstepping stepper motor controller. (The steps are really small and appear to be continuous.)
If you really want it to be a servo, then you need external feedback, either through a pot, encoder or other sensor.
