7. About the Scaling of Feedback Signals
The Drive-On-Chip Design Example for Intel Cyclone V devices requires scaling to convert the feedback samples from sigma-delta into the same units for use in the FOC algorithm. Also, the design requires scaling to convert current and voltage feedback values to the units expected by the DC-DC module. The design processes some feedback as dimensionless data and scales it into a convenient range (e.g. signed 16-bit integer) for use in the control loop.
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