User guide
20 of 24
V1.0
2021-04-15
EVAL-M7-D111T user guide
iMOTION™ evaluation board for smart driver
System performance
4
System performance
4.1
Test results
This IMD111T control board EVAL-M7-D111T was tested with EVAL-M7- HVIGBT-INV board. Because the EVAL-M7-
HVIGBT-INV board is up to 200 W without any external heatsink, the control board was tested up to 200 W due to
the limitation. Of course, the EVAL-M7-D111T can drive higher power ouput when matching with larger power
rating boards. Phase current waveforms are shown in Figure 14. Figure 15 shows the inverter-current feedback
noise in static condition (less than 10 counts). The static condition means to measure the current feedback when
the motor is stoped. A better PCB layout can get lower current feedback noise and improve motor control
performance.
Figure 14
Phase current waveform @ 200 W load