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EVAL-M1-IM818-A user guide
Evaluation power board with MADK M1 connector
Schematic for EMI filter and AC/DC section of the EVAL-M1-IM818-A evaluation board
3.2
Auxiliary power supply
Figure 23 depicts the schematic of the auxiliary power supply of the EVAL-M1-IM818-A board. The circuit
includes the ICE5QSAG that is used to generate 15 V directly from the DC bus. VCC is connected to the gate
drivers inside the CIPOS™ IPM.
+BUS
2.2nF/1kV
NF
R16
4R3
R19
33nF/50V
C20
ZCD
TPS
GND
Schematic of the 3-phase inverter section using CIPOS
Figure 23
The linear voltage regulator IFX25001ME V33 generates 3.3 V from a 15 V power supply VCC. Both VCC and 3.3 V
are also present on the 20-pin interface connector J2 to power circuitry on the controller board.
User guide
200KR
200KR
R6
R7
2.2nF/1kV
US1M
C15
C16
D1
CS
Q1
TPS
STP3N150
0R
U2
R48
ICE5QSAG
VCC
TPS
VCC
MBR2150
TR1
1
10
*
US1M
*
3
9
4
7
C50
D2
*
*
B1100
5
6
WE-750344164
2.2nF/1kV
2.2nF/1kV
US1D
C21
C32
D12
BAV20W
FB
TPS
D13
1.2KR
IC-817SM
R46
U4
Maxi IPM on EVAL-M1-IM818-A
TM
24 of 35
2.2µH
15V 0.5A
15V
L6
D21
100nF/50V
IFX25001ME V33
6V
1
I
Q
D3
C33
1nF/50V
R38
49.9KR
C
R
2
U3
A
TL431BSM
GND
15V
TPS
GND2
TPS
3
3.3V
U1
C22
16V470u
Revision 1.4
2021-09-10
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