Dc Power Supply; Protection Function - Infineon EVAL-M7-HVMOS-INV User Manual

EVAL-M7-HVMOS-INV user guide
Evaluation power board with M7 connector
System and functional description
2.3.5

DC power supply

This evaluation board EVAL-M7-HVMOS-INV is dedicated to motor applications under 300 W at 220 V
designed using two 82 µF bus capacitors. If this board is being used to evaluate higher power over 300 W, users
should consider the effect of the higher bus voltage ripple at heavy load.
Figure 13 shows the measured bus voltage ripple is 14.8% at 300 W load and 220 VAC input condition (45 V/304
V = 14.8%).
Figure 13 Bus voltage ripple test
2.3.6

Protection function

For this power board EVAL-M7-HVMOS-INV, there is no external hardware protection function on the board.
Protection functions such as overcurrent, over-/undervoltage, phase loss, and rotor lock are all carried out by
the control board when using the EVAL-M7-D111T control board for evaluation. The overcurrent and over-
/undervoltage protection threshold can be set in the MCEWizard. Users can also enable/disable the protection
functions such as phase loss, rotor lock, etc. All the protection functions that are included in the IMD111T can be
set in the MCEWizard. Figure 14 shows the overcurrent trip level setting page in MCEWizard.
Figure 14 Overcurrent trip level setting in MCEWizard
User guide 17 of 30
input. It is
AC
Revision 1.0
2021-06-28