Naked Science Forum

Non Life Sciences => Technology => Topic started by: ziapandorra on 14/02/2013 07:49:21

Title: phase locked loop controller for harmonic drive
Post by: ziapandorra on 14/02/2013 07:49:21

Hi to all.

I'm new here! ;;) , but my question is  :

Could we design phase-locked loop (pll) controller for harmonic drive?

recent work had done for "dc drive motor".

Any ideas please?

regards

Title: Re: phase locked loop controller for harmonic drive
Post by: evan_au on 14/02/2013 10:36:59

It's not clear what application you are thinking of....

• You can control the position and speed of a motor by using a stepper motor or a sensor on the drive shaft
• If there is a harmonic drive on the motor's shaft, this will change the speed and torque of the motor. You could use a position sensor on this shaft.
• If you know the gear ratio of the harmonic drive, then you can use a frequency divider with that same ratio in the PLL to control the motor position.

For more information:

• A description of Harmonic Drives (a form of gearing): http://en.wikipedia.org/wiki/Harmonic_drive
• Phase-Locked Loops (a way of controlling frequency or time): http://en.wikipedia.org/wiki/PLL