I'm using the AD-FMCMOTCON2-EBZ reference design to build my motor control algorithm. Now I want to get the actual values of the phase currents Ia and Ib.
In the AD-FMCMOTCON2-EBZ kit the phase current is senced by a sigma-delta-modulator AD7403, which exports a single-bit data stream to a SINC3 filter. This filter will reconstruct the actual current measurement.
Could anybody tell me whether the signals of these two output ports "ia_o" and "ib_o" in the reference design are the actual current measurement values, i.e. the output signals of SINC3 filter?
The design block is shown as follow: