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EVAL-IMI111T user guide
iMOTION™ MADK starter kit for IMI111T IPMs
System performance
DC bus sense resistor on the EVAL-IMI111T evaluation board
Figure 8
The DCBSENSE voltage is read by the VDC pin of the controller. With 13.3 kΩ as pull-down resistor, the DCBSENSE
voltage causes a range of 0 to 3.3 V on the pin reflecting a DC bus voltage range of 0 to 500 V.
4.2
EMI filter
Figure 9 shows the schematic from the AC-line input connector J1 to the rectified DC bus voltage. This circuitry
includes a passive EMI filter consisting of the elements CX1, CX2, L1, CY1, and CY2, a 2 A/600 V rectifier (BR1), an
NTC resistor RT1, two ceramic capacitors C12 and C13, a film capacitor C32, and an electrolytic capacitor C31 for
buffering the rectified DC bus voltage DCP.
CX1
100nF
630V
J1
1
EARTH
2
LINE
NEUTRAL
3
691216510003S
Schematic of EMI filter and AC/DC section of the EVAL-IMM101T evaluation board
Figure 9
4.3
Inverter section using iMOTION™ IPM
The inverter section is implemented as shown in Figure 10. The 3-phase inverter consist of six IGBTs with the
following blocking voltages and current capability depending on the part number:
IMI111T - 026H - DC rating: 600 V/2 A
•
IMI111T - 046H - DC rating: 600 V/4 A
•
User guide
DCP
R22
1MEG
TP2
R23
1MEG
R24
13.3k
1%
AC+
CX2
L1A
100nF
4
3
630V
1
2
1mH
8103-RC
AC-
CY1
2.2nF
DCP_scal
DCBSENSE
C87
4.7nF
RT1
q
15R
BR1
KBP206G
2
3
CY2
2.2nF
15 of 37
DCP
R112
75k
1W
R113
75k
C31
C12
1W
C32
82uF
12nF
100nF
450V
500V
630V
LED3
Red
C13
12nF
500V
V2.1
2022-12-9
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