I’ve got a rethink robotics chassis that I’m trying to rebuild. It uses PMDM motors that have a resolver built into them. Has anyone worked with these resolvers with the SimpleFOC?
Hey @patracy , welcome to SimpleFOC!
Sorry you did not get an answer - it seems that no one here is using such a resolver…
The problem is that this device looks to be a “naked” sensor, without the driver electronics to make it easy to use.
The details can be found here:
So you have to provide a high frequency excitation signal as the input, and recover the angle from the envelope of the sin/cos output signals.
ICs exist to do this from analog devices and others, but they’re very expensive IIRC…