Voice coils

A “voice coil” is a type of linear actuator. It pushes or pulls when you apply a voltage to it. The voice coil gives a force that is proportional to the current in its electric coil. To repeat, this type of actuator gives a force, not primarily a velocity or position.

Some references:

Design and Control of a Voice Coil Actuated Robot Arm …
by John McBean, Mechanical Engineering Masters thesis, 2004.

Basics of Voice Coil Actuators
by Bill Black, et al in PCIM Power Electronics Systems, July 1993.

Voice-coil actuators
by George Gogue & Joseph Stupak, G2 Consulting.


I think you were asking a question in your post originally, but it looks like you changed it now. Did you figure out the answer to what you were asking?


Yes, thanks.

It looks like the Jrk 21v3 (Pololu #1394) motor controller with feedback can be used to control the voice coil I had in mind.

You can find some additional information http://www.h2wtech.com/category/voice-coil-actuators.