This application note provides an overview of the evaluation-board EVAL-M1-IM231-A including its main
features, key data, pin assignments and mechanical dimensions.
The EVAL-M1-IM231-A board is a complete evaluation-board including IM231-L6-series 3-phase intelligent
power modules (IPM) are designed for high-efficiency appliance motor drives such as air-conditioner fans and
refrigerator compressors. In combination with either EVAL-M1-101T or EVAL-M1-099M it features and
demonstrates Infineon’s CIPOS™ Micro IPM technology for motor drive.
The evaluation board EVAL-M1-IM231-A for intelligent power modules (IPM) was developed to support
customers during their first steps designing applications with CIPOS™ Micro power modules.
Intended audience
This application note is intended for all technical specialists working with the EVAL-M1-IM231-A board.
Important notice
Attention:The Evaluation Boards and Reference Boards as well as the information in this document are
solely intended to support designers of applications in evaluating the use of products from
Infineon Technologies for their intended applications.
Environmental conditions have been considered in the design of the Evaluation Boards and
Reference Boards provided by Infineon Technologies. The design of the Evaluation Boards
and Reference Boards has been tested by Infineon Technologies only as described in this
document. The design is not qualified in terms of safety requirements, manufacturing and
operation over the entire operating temperature range or lifetime.
The Evaluation Boards and Reference Boards provided by Infineon Technologies are subject
to functional testing only under typical load conditions. Evaluation Boards and Reference
Boards are not subject to the same procedures as regular products regarding returned
material analysis (RMA), process change notification (PCN) and product discontinuation (PD).
User Manual Please read the Important Notice and Warnings at the end of this documentRevision 1.1
www.infineon.com1 2020-07-09
Evaluation Boards and Reference Boards are not commercialized products, and are solely
intended for evaluation and testing purposes. In particular, they shall not be used for
reliability testing or production. The Evaluation Boards and Reference Boards may therefore
not comply with CE or similar standards (including but not limited to the EMC Directive
2004/EC/108 and the EMC Act) and may not fulfill other requirements of the country in which
they are operated by the customer. The customer shall ensure that all Evaluation Boards and
Reference Boards will be handled in a way which is compliant with the relevant requirements
and standards of the country in which they are operated.
The Evaluation Boards and Reference Boards as well as the information provided in this
EVAL-M1-IM231-A User Manual
iMOTION™ Modular Application Design Kit
document are addressed only to qualified and skilled technical staff, for laboratory usage,
and shall be used and managed according to the terms and conditions set forth in this
document and in other related documentation supplied with the respective Evaluation Board
or Reference Board.
It is the responsibility of the customer’s technical departments to evaluate the suitability of
the Evaluation Boards and Reference Boards for the intended application, and to evaluate
the completeness and correctness of the information provided in this document with respect
to such application.
The customer accepts that the Evaluation Boards and Reference Boards are not intended to
be used in life-endangering applications such as medical, nuclear, military, life-critical or
other applications, where failure of the Evaluation Boards and Reference Boards, or any
results from the use thereof, can reasonably be expected to result in personal injury.
The Evaluation Boards and Reference Boards and any information in this document is
provided "as is" and Infineon Technologies disclaims any warranties, express or implied,
including but not limited to warranties of non-infringement of third party rights and implied
warranties of fitness for any purpose, or for merchantability.
Infineon Technologies shall not be responsible for any damages resulting from the use of the
Evaluation Boards and Reference Boards and/or from any information provided in this
document. The customer is obliged to defend, indemnify and hold Infineon Technologies
harmless from and against any claims or damages arising out of or resulting from any use
thereof.
Infineon Technologies reserves the right to modify this document and/or any information
provided herein at any time without further notice.
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Safety precautions
Please note the following warnings regarding the hazards associated with development systems.
Table 1Safety precautions
Warning: The DC link potential of this board is up to 400 VDC. When measuring
voltage waveforms by oscilloscope, high voltage differential probes must be used.
Failure to do so may result in personal injury or death.
Warning: The evaluation or reference board contains DC bus capacitors which take
time to discharge after removal of the main supply. Before working on the drive
system, wait five minutes for capacitors to discharge to safe voltage levels. Failure to
do so may result in personal injury or death. Darkened display LEDs are not an
indication that capacitors have discharged to safe voltage levels.
Warning: The evaluation or reference board is connected to the grid input during
testing. Hence, high-voltage differential probes must be used when measuring voltage
waveforms by oscilloscope. Failure to do so may result in personal injury or death.
Darkened display LEDs are not an indication that capacitors have discharged to safe
voltage levels.
Warning: Remove or disconnect power from the drive before you disconnect or
reconnect wires, or perform maintenance work. Wait five minutes after removing
power to discharge the bus capacitors. Do not attempt to service the drive until the bus
capacitors have discharged to zero. Failure to do so may result in personal injury or
death.
Caution: The heat sink and device surfaces of the evaluation or reference board may
become hot during testing. Hence, necessary precautions are required while handling
the board. Failure to comply may cause injury.
Caution: Only personnel familiar with the drive, power electronics and associated
machinery should plan, install, commission and subsequently service the system.
Failure to comply may result in personal injury and/or equipment damage.
Caution: The evaluation or reference board contains parts and assemblies sensitive to
electrostatic discharge (ESD). Electrostatic control precautions are required when
installing, testing, servicing or repairing the assembly. Component damage may result
if ESD control procedures are not followed. If you are not familiar with electrostatic
control procedures, refer to the applicable ESD protection handbooks and guidelines.
Caution: A drive that is incorrectly applied or installed can lead to component damage
or reduction in product lifetime. Wiring or application errors such as undersizing the
motor, supplying an incorrect or inadequate AC supply, or excessive ambient
temperatures may result in system malfunction.
Caution: The evaluation or reference board is shipped with packing materials that
need to be removed prior to installation. Failure to remove all packing materials that
are unnecessary for system installation may result in overheating or abnormal
operating conditions.
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Introduction
Table of Contents
About this document ....................................................................................................................... 1
Important notice ............................................................................................................................ 1
4Getting started with EVAL-M1-IM231-A ............................................................................ 11
4.1Setting up the system............................................................................................................................ 11
4.2iMOTION™ development tools and software ....................................................................................... 13
5Schematics and layout .................................................................................................. 17
5.1.1DC bus sensing and MCEWizard configuration ............................................................................... 17
5.1.2Motor external current feedback configuration and calculation ................................................... 18
5.1.3Inverter overcurrent protection and motor Gatekill configuration ............................................... 20
5.2EMI filter and rectifier circuit ................................................................................................................. 22
5.3Inverter section using CIPOS™ Micro .................................................................................................... 23
5.4Auxiliary power supply .......................................................................................................................... 24
5.5Schematics for EVAL-M1-IM231-A ......................................................................................................... 25
The EVAL-M1-IM231-A evaluation board is a part of the iMOTION™ modular application design kit for drives
(iMOTION™ MADK).
The MADK-platform is intended to use various power stages with different control boards. These boards can
easily be interfaced through the 20-pin iMOTION™ MADK-M1 interface connector.
This evaluation board is designed to give comprehensible solutions of a power stage based on the Infineon's
CIPOS™ Micro intelligent power module (IPM). The board is equipped with all assembly groups for sensor less
field oriented control (FOC). It provides a single-phase AC-connector, rectifier, DC-link and 3-phase output for
power. It contains emitter-shunts for current sensing and a voltage divider for DC-link voltage measurement.
The EVAL-M1-IM231-A evaluation board is available from Infineon. The features of this board are described in
the design feature chapter of this document, whereas the remaining paragraphs provide information to enable
the customers to copy, modify and qualify the design for production according to their own specific
requirements.
Environmental conditions were considered in the design of the EVAL-M1-IM231-A. The design was tested as
described in this document but not qualified regarding safety requirements or manufacturing and operation
over the whole operating temperature range or lifetime. The boards provided by Infineon are subject to
functional testing only.
Evaluation boards are not subject to the same procedures as regular products regarding returned material
analysis (RMA), process change notification (PCN) and product discontinuation (PD). Evaluation boards are
intended to be used under laboratory conditions by specialists only.
CIPOSTM IPM
15V
PWM
I
trip
VFO
TM
HVIC
Itrip
VFO
M
Line
Neutral
EMI Filter
& Soft
Power Up
Circuit
Power
Supply
PWM
15V & 3.3V
DCBsense
20 pin iMOTION
MADK-M1 connector
GK
Figure 1The Block Diagram of the EVAL-M1-IM231-A Evaluation-board
Figure 1 shows the evaluation board EVAL-M1-IM231-A. Although this board is compatible with on surface
mount as well as through whole CIPOS™ Micro modules. This document explains the features and details of this
board in combination with CIPOS™ Micro IM231-L6S1B and IM231-L6T2B. The only difference between these
modules is the package type. IM231-L6S1B is SOP23 package. IM231-L6T2B is DIP23 package.
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Main features
2Main features
EVAL-M1-IM231-A is a complete evaluation board including a 3-phase IPM for motor drive application. The kit
demonstrates Infineon’s IPM technology for motor drives.
Main features of CIPOS™ Micro intelligent power module IM231-L6S1B and IM231-L6T2B include:
600 V 3-phase inverter including gate drivers & bootstrap function
Low VCE(sat) TRENCHSTOP™ IGBT6
Temperature monitor
Accurate overcurrent shutdown (±5 %)
Fault reporting and programmable fault clear
Advanced input filter with shoot-through protection
Optimized dv/dt for loss and EMI trade offs
Open-emitter for single and leg-shunt current sensing
3.3 V logic compatible
Isolation 1900 VRMS, 1min
The evaluation board characteristics are:
Nominal input voltage 220 V
Maximum 400 W motor power output
On board EMI filter
Current sensing for each phase configured by default
Over current protection
Sensing of DC-link voltage
Thermistor output
Fault diagnostic output
Measurement test-points compatible to standard oscilloscope probes
PCB is 100 x 100 mm and has two layers with 35 µm copper each
RoHS compliant
AC
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Main features
Value
Conditions
2.1EVAL-M1-IM231-A board specifications
Table 2 shows the important specifications of the evaluation board EVAL-M1-IM231-A.
Table 2EVAL-M1-IM231-A board specifications
Parameters
Input
Voltage
Input current 1.8 A
165 - 265 V
rms
rms
Lower AC input, less motor power output
Input 220 VAC, Ta=25C, IM231
Output
Power (3 phases) 400 W Input 220 V
Current per leg 2.2 ArmsInput 220 V
DC bus
Maximum DC bus voltage 400 V
Minimum DC bus voltage 120 V
Current feedback
100 mΩ The default configuration uses three shunts in
the emitter paths. To implement single shunt
sensing, the board should be modified as
Current sensing devices
RS3, RS4, RS5
follows:
1) RS3 and RS5 have to be removed
2) IU+,IV+,IW+ have to be connected
3) R35 has to be changed to 3.48 kΩ
Protections
Configured by either changing shunt resistors
Output current trip level 6.07 A
pk
RS3, RS4, RS5 or adapting comparator
threshold changing resistor R35
, f
=6 kHz, Ta=25°C, Th=70°C
AC
PWM
, f
=6 kHz, Ta=25°C, Tc=100°C
AC
PWM
On board power supply
15 V 15 V±5%, Max 20 mA Used for CIPOS™ Micro gate driver power
3.3 V 3.3 V±5%, Max 50 mA
Used for interface signals to the control board
and alarm signals as I
, FLT/EN
TRIP
PCB characteristics
FR4, 1.6 mm thickness,
Material
2-layers, 35 µm copper
thickness
Dimensions 100 mm x 100 mm
System environment
Ambient temperature 25°C NA
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Main features
Figure 2 and Figure 3 hint out the functional groups of the EVAL-M1-IM231-A evaluation board.
5
1. CIPOS™ Micro IPM and
4
Heatsink.
2. Motor phase connector
(J2)
3. J3-20 pin iMOTION™
6
MADK-M1 interface
connector for controller
board
4. AC line input connector
(J1)
3
1
2
5. EMI filter and rectifier
group
6. Auxiliary power supply
Figure 2Functional groups of the EVAL-M1-IM231-A evaluation board’s top side
7. ICE5GR4780AG U2
8. Current sensing shunt
7
resistor RS3, RS4, RS5
8
Figure 3Functional groups of the EVAL-M1-IM231-A evaluation board’s bottom side
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Pin assignments
3Pin assignments
General information about the connectors of the EVAL-M1-IM231-A evaluation board is reported. Table 3
includes the details of the line connector J2-AC.
Table 3J2- AC line connector
S. No. Pin Details
1 E Earth ground
2 N AC neutral input
3 L AC line input
Table 4 denotes the details of the motor side connector J2.
Table 4J3- Motor side connector
S. No. Pin Details
1 U Connected to motor phase U
2 V Connected to motor phase V
3 W Connected to motor phase W
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Pin assignments
Table 5 provides the pin assignments of the M1 20-pin interface connector J4. This connector is the interface to
the controller board.
Table 5J4 - 20 pin interface connector for controller board
Pin Name Connectors
1 PWMUH 3.3 V compatible logic input for high side gate driver-Phase U
2 GND Ground
3 PWMUL 3.3 V compatible logic input for low side gate driver-Phase U
4 GND Ground
5 PWMVH 3.3 V compatible logic input for high side gate driver-Phase V
6 +3.3 V On board 3.3 V supply
7 PWMVL 3.3 V compatible logic input for low side gate driver-Phase V
8 +3.3 V On board 3.3 V supply
9 PWMWH 3.3 V compatible logic input for high side gate driver-Phase W
10 IU+ Positive Current sense output
11 PWMWL 3.3 V compatible logic input for low side gate driver-Phase W
12 IU- Negative current sense output or Ground
13 GK Gate kill signal – active low when overcurrent is detected
14 DCBSENSE DC bus positive voltage, scaled in 0-3.3 V range by a voltage divider
15 VTH Thermistor Output
16 IV+ Positive Current sense output
17 IV- Negative current sense output or Ground
18 IW+ Positive Current sense output
19 IW- Negative current sense output or Ground
20 VCC 15 V Supply
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Getting star
ted with EVAL
-M1-
IM231
-
A
PC-USB
C
onnector
Motor
P
hase
O
utput
s
ACPower
I
nput
4Getting started with EVAL-M1-IM231-A
In order to run the motor system, a combination of the iMOTION™ MADK power board EVAL-M1-IM231-A and the
matching MADK control board (with M1 connector, EVAL-M1-101T for example in this chapter) is required. The
iMOTION™ software tools MCEDesigner and MCEWizard are also required in order to initially setup the system,
as well as to control and fine-tune the system performance to match users exact needs. This chapter provides
more details on setting up the system and getting started with iMOTION™ MADK development platform.
4.1Setting up the system
After downloading and installing the iMOTION™ PC tools (MCEWizard and MCEDesigner), following steps need
to be executed in order to run the motor. Refer to chapters 4.2.1 and 4.2.2 as well as MCEWizard and
MCEDesigner documentation for more information.
Figure 4System connection example using EVAL-M1-101T and EVAL-M1-IM231-A
1. Get the latest ”IMC101T-T038 MCE Software Package” available on www.infineon.com/imotion-software
web page.
2. Connect PC-USB connector on the on-board-debugger to the PC via USB cable.
3. Connect EVAL-M1-101T’s M1 20-pin interface connector (J2) to power board (For example EVAL-M1-IM231-A,
see Figure 4).
4. Use MCEWizard to enter the target motor’s system and operating parameters, as well as evaluation board’s
hardware parameters, which will then be used to calculate controller’s digital parameter set representing
complete motor drive system. First click “Calculate” button on the “Verify & Save Page” and then save the
drive parameter set into your project directory by clicking “Export to Designer file (.txt)”. Saved drive system
parameter file will be later used by the MCEDesigner. Refer to chapter 4.2.1or MCEWizard user guide for
more details.
5. Connect motor phase outputs to the motor.
6. Connect AC power to power input connector and power on system.
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-
A
7. Start MCEDesigner tool and open MCEDesigner default configuration file (.irc) for IMC101T-T038 controller
(IMC101T_Vxxx.irc) by clicking “File” > “Open”. IMC101T_Vxxx.irc file is included in ”IMC101T-T038 MCE
Software Package” downloaded in step 1.
8. MCEDesigner should automatically connect to the EVAL-M1-101T control board using default COM port
(Indicated by green circle next to “COMx Up” status in the bottom frame of the MCEDesigner GUI). If it
cannot establish the connection, change COM port by doing following steps: (“System” window active) >
Preferences > Connection > Connect using (Chose one of the other available COM ports from the drop-down
menu).
9. Use following steps to program the system parameters into the internal SRAM of iMOTION™ IC: Click
“Tools” > “Programmer” and select “Program Parameters”. Browse and select the system drive
parameters .txt file created in step 4. See chapter MCEDesigner setup overview 4.2.2 for more details.
10. Start the motor by clicking the green traffic light button in the control bar.
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-
A
4.2iMOTION™ development tools and software
The iMOTION™ development tool installers for MCEDesigner and MCEWizard are available for download via
Infineon iMOTION
variants are listed there. Please visit this page periodically to check for tool/software updates.
Isolated on-board debugger provides the USB to UART bridge between the PC and the target iMOTION™ device
with 1kV DC galvanic isolation between the motor drive system (hot side) and the PC/debugger (cold) side. Onboard debugger uses the SEGGER J-Link driver for UART communication with IMC101T-T038. J-Link driver will
be installed during the MCEDesigner installation. In case the driver is not installed properly, please go to
SEGGER J-Link website to download and install the latest J-Link “Software and Documentation pack for
Windows”.
TM
website (http://www.infineon.com/imotion-software). All supported tools and software
4.2.1MCEWizard setup overview
After installing the MCEWizard, the shortcut for MCEWizard appears on the Windows desktop. Double click the
shortcut to open the MCEWizard and configure the parameters for evaluation boards or motor. Figure 5 shows
the “Welcome Page” for MCEWizard, where the MADK control board or power board can be selected through
the pull-down list. Infineon keeps releasing new MADK controller and power boards. Therefore, it could happen
that some of the newest power boards are not pre-configured in the MCEWizard tool and cannot be selected
through the pull-down menu. In that case, the user should select any other power board (as similar as possible)
and follow the MCEWizard setup steps by entering the parameter values which are specific to the chosen board.
Make sure both “I have modified the circuit board” and “Enable advanced question” checkmarks are selected.
Please refer to the Application Note of the corresponding power board for additional information.
After selecting the MADK control and the power board, start the MCEWizard system setup procedure by clicking
the “Next” button in the right bottom corner as shown in Figure 5.
Figure 5Welcome page of MCEWizard
iMOTION™ MADK system enables users to easily test different combination of control and power board with
their motors. User should be familiar with the system level parameters which are related to the motor used.
There is a very limited number of parameters which are specific to the control board or power board hardware.
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IM231
-
A
Table 6 provides the MCEWizard setup overview for hardware related parameters specific to EVAL-M1-IM231-A
power board. Similar tables will be available in each control board’s application note. Combination of this table
and the corresponding table of the control board provides enough information to setup the MADK-based motor
drive system in shortest time.
Table 6MCEWizard setup overview table
Page Parameter Value Comment
Welcome Page Control Board selecting EVAL-M1-101T for example
Welcome Page Power Board selecting EVAL-M1-IM231-A If no, select similar
power board to modify
Options PageMotor 1 Shunt Configuration Leg shunt
Question 3 Controller Supply Voltage +3.3 V VDD is 3.3 V by default
Question 19 Max DC Bus Voltage 400 V
Question 23 DC Bus Sensing High Resistor 2000 kΩ
Question 24 DC Bus Sensing Low Resistor Refer to the control board user
manual
Question 54 NTC Temperature Shutdown
value
Refer to the control board user
manual
Question 63 GateSense Low-Side Devices High is true
Question 64 GateSense High-Side Devices High is true
Question 69 Motor 1 Current Input
Calculated in the corresponding
Section in control board user
manual
After all the MCEWizard questions are answered, the “Verify & Save Page” will be shown as in Figure 6.
Figure 6Verify and save page for MCEWizard
Click “Calculate” button and “Export to Designer File (.txt)” button to save the parameter file which will be used
by the MCEDesigner in the next steps.
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-M1-
IM231
-
A
4.2.2MCEDesigner setup overview
After installing MCEDesigner installer, there is a shortcut for MCEDesigner on windows desktop. Double click
the shortcut to open MCEDesigner and then open “IMC101T_xx.irc” file as shown in Figure 7.
Figure 7MCEDesigner’s main display for EVAL-M1-101T
To program drive system parameter file into IMC101T-T038, please click “Tools” menu and select
“Programmer” in the pull down list. The pop-up window “Program IMC controller” will show up as in Figure 8.
Click on the “Program Parameters” radio button (this is the default option), and then select the drive system
parameter file created using MCEWizard by clicking on “Browse”. Finally, click on the “Start” button to program
the parameter file into the IMC101T-T038 IC.
Figure 8“Program IMC controller” pop-up window
After drive system parameter file has been programmed into IMC101 controller, and the motor drive system is
powered, the MCEDesigner can be used to start/stop the motor, display motor current traces, change the motor
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Getting started with EVAL
-M1-
IM231
-
A
speed, modify drive parameters and many other functions. Please refer to the MCEDesigner documentation for
more details.
Note: On-board debugger portion of EVAL-M1-101T is galvanically isolated from the controller portion and the
attached power board. In order to program the parameters or firmware to the IMC101T-T038 controller, the
3.3 V DC voltage needs to be supplied to the controller portion of the EVAL-M1-101T. This voltage can either
be supplied by the power board (MADK power boards are designed to supply the 3.3 V to the control board
through M1 connector) or by feeding the 3.3 V DC voltage to the control board through some of the available
3.3 V access/test points if the power board is not attached to the EVAL-M1-101T control board.
To program new firmware and drive system parameter into IMC101T-T038, please click “Tools” menu and
select “Programmer” in the pull down list. The pop-up window “Program IMC controller” will show up as in
Figure 9. Click on the “Program Firmware and Parameter” radio button, and select the drive system parameter
file created using MCEWizard by clicking on the “Browse” button on the row of “Program Parameter File”, and
then select the firmware file by clicking on the “Browse” button on the row of “Program Firmware File”. Finally,
click on the “Start” button to program the parameter file into the IMC101T-T038 IC.
Figure 9Program firmware and parameter in “Program IMC Controller” pop-up window
All the latest firmware files for different types of iMOTIONTM motor control ICs are available for download via
Infineon iMOTION
To meet individual customer requirements and make the EVAL-M1-IM231-A evaluation board a basis for
development or modification, all necessary technical data like schematics, layout and components are
included in this chapter.
5.1.1DC bus sensing and MCEWizard configuration
Pin 14 of connector J4 provides access to the DC-link voltage. Three possible feedback cases are associated
with this pin. Figure 10 provides the DC bus sense resistor details.
By default, R22 is not mounted on EVAL-M1-IM231-A. There must be a pull-down resistor mounted on the
corresponding controller board.
DCP
R20
1.00M
R21
1.00M
DCBSENSE
R22
4.87K(DNI)
Figure 10DC bus sense resistor on EVAL-M1-IM231-A evaluation board
If a pull down resistor of 4.87 k referred to ground is inserted either on the EVAL-M1-IM231-A evaluation board
or on the control board, the DCBSENSE voltage results in the range of 0 to 3.3 V on the pin reflecting a DC bus
voltage range of 0 to 400 V.
If a pull down resistor of 4.87 kis inserted on both, EVAL-M1-IM231-A evaluation board and on the control
card, the DCBSENSE results scale to 0-1.65 V. No safety issue occurs.
The high side resistors R20 and R21 for the DC bus sensing resistor divider on the controller board EVAL-M1IM231-A are 2000 kΩ, and should be configured in MCEWizard as shown in Figure 11. For the low side resistor
value, please refer to the user manual of the corresponding control board.
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Schematics and layout
Figure 11DC bus sensing configuration in MCEWizard
5.1.2Motor external current feedback configuration and calculation
The current input value is product of the shunt resistance in milliohms and gain of external current sense
amplifier for EVAL-M1-101T as shown in Figure 12.
Figure 12Current shunt feedback and sample timing for EVAL-M1-101T
The external amplifier gain circuit can be found in the schematics or user manual for the control board (For
example, EVAL-M1-101T see Figure 13).
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Schematics and layout
Figure 13 depicts IU+ current feedback sensing circuity on EVAL-M1-101T evaluation board. Please note that the
default external amplification gain is less than 1 for current sense in this evaluation board.
+3.3V
Current shunt
resistor on power
board
Rsh
Ish
IU+
R6
10k, 1%
V1
R7
2k, 1%
R8
100R
V2
C15
220pF
6
iMOTION
Controller
IU
Figure 13The part of Current feedback on the EVAL-M1-101T evaluation board
Based on the principle of Kirchhoff's voltage law,
≈
(
≈
− ∗
∗
+
)
=
+ ∗
+
=
+
=
5
6
_ℎ
+
+
∗
Based on this calculation, the current input for the MADK combination of EVAL-M1-101T and EVAL-M1CTE610N3 is 83.3 mV/A.
Please use same procedure to calculate the current input for other combinations of MADK boards and enter it
into MCEWizard as shown in Figure 14.
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Figure 14Current feedback configuration in MCEWizard for EVAL-M1-101T and EVAL-M1-CTE610N3
5.1.3Inverter overcurrent protection and motor Gatekill configuration
Figure 15 displays the overcurrent protection circuitry. The current sensing signal I_Shunt is connected to ITRIP
via the comparator U6A, and ITRIP is filtered through capacitor C30.
Figure 15Overcurrent protection circuit on the EVAL-M1-IM231-A evaluation board
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The inverter output peak current is about 6.07 A
∗
=
30 + 35
If the motor peak current is larger than the setting value I
peak
35
.
+
36 + 31
∗
for more than I
trip
36
+ 7
input filter time, the RFE will be
trip
triggered low, which means that the Gatekill signal is active. For iMOTION™ IMC1xx control IC, there are three
types of Gatekill input sources (as shown in Figure 16). For the input source configured as “Gatekill-Pin” or “Both”, the iMOTION™ control IC will stop the motor when the GateKill signal is active.
But please note that if the comparator for the Gatekill input source is selected, the external Gatekill signal will
not be used. And the current-sensing signal I_Shunt will be compared by the internal comparator with the
“Gatekill Comparator Reference” value only set in MCEWizard.
Figure 16Gatekill configuration in MCEWizard for EVAL-M1-101T
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5.2EMI filter and rectifier circuit
Figure 17 depicts the schematic from the AC line input connector J2 to the rectified DC bus voltage. This
circuitry includes a passive EMI filter consisting of elements CX1, CX2, L2, CY1 and CY2, a 4 A/600 V rectifier block
BR1 and a NTC resistor RT1 for surge current protection. An electrolytic capacitor C13 and two ceramic
capacitors C14 and C15 are used for buffering the rectified DC bus voltage DCP. During testing it is advisable to
include an external fuse.
Figure 17Schematic for EMI filter and AC/DC section of the EVAL-M1-IM231-A evaluation board
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5.3Inverter section using CIPOS™ Micro
The inverter section is implemented using the CIPOS™ Micro IPM as sketched in Figure 18. The module includes
a combination of low VCE (sat) Trench IGBT technology and the industry benchmark rugged half-bridge drivers.
The shunt resistor section is also given, including the 0 resistors R23 to R27. These resistors allow connecting
or disconnecting the shunts’ signals to connector J4. The three capacitors C24, C26 and C33 are used as
bootstrap capacitors to provide the necessary floating supply voltages VBS1, VBS2 and VBS3 respectively.
Figure 18Schematic of the 3-phase inverter section using CIPOS™ Micro on EVAL-M1-IM231-A
evaluation board
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yout
5.4Auxiliary power supply
Figure 19 depicts the schematic of the auxiliary power supply for the EVAL-M1-IM231-A board. The circuit
includes the latest CoolSET 5 of Infineon and flyback toplogy, directly output 15 V and 6 V. VCC is connected to
the gate drivers inside the CIPOS™ IPM.
Figure 19Power supply section of the EVAL-M1-IM231-A evaluation board
The linear voltage regulator IFX1117ME V33 generates 3.3 V from 6 V power supply VCC. The 3.3 V power supply is
used in the inverter external overcurrent comparator circuit. Both VCC and 3.3 V are also present on the 20-pins
iMOTION™ MADK-M1 interface connector J4 to power circuitry on the control board.
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5.5Schematics for EVAL-M1-IM231-A
Figure 20 displays the AC linear section schematic for EVAL-M1-IM231-A.
Figure 20AC Linear section schematics for the EVAL-M1-IM231-A evaluation board
The auxiliary power supply section schematic for EVAL-M1-IM2331 is provided in Figure 21.
Figure 21 Auxiliary power supply section schematics for EVAL-M1-IM231-A
The inverter section schematic for EVAL-M1-IM231-A is provided in Figure 22.
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Figure 22Inverter section schematics for EVAL-M1-IM231-A
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5.6Layout
The layout of this board can be used for different voltage or power classes. The PCB has two electrical layers
with 35µm copper by default and its size is 100 mm × 100 mm. The PCB board thickness is 1.6mm. Get in
contact with our technical support team to get more detailed information and the latest Gerber-files.
Figure 23 illustrates the top assembly print of the evaluation board.
Figure 23Top assembly print of the EVAL-M1-IM231-A evaluation board
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Figure 24 depicts the bottom assembly print of the evaluation board.
Figure 24Bottom assembly print of the EVAL-M1-IM231-A evaluation board
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The top layer of the PCB is provided in Figure 25.
Figure 25Top layer of the EVAL-M1-IM231-A
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Figure 26 illustrates the bottom layer routing of the PCB.
Figure 26Bottom layer routing of the EVAL-M1-IM231-A
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Bill of materials of EVAL
-M1-
IM231
-
A
Manufacturer
6Bill of materials of EVAL-M1-IM231-A
Table 7 provides the complete bill of materials of the evaluation board.
Table 7Bill of materials
NoQtyPart description Designator Part number
1 1 RECT BRIDGE GPP 4A 600V GBU BR1 GBU406
2 1 CAP SMD 470pF 100V 0603 C1 885012006083 Wurth Electronics Inc.
3 1 CAP CER 1000pF 630V 1206 C2 885342208011 Wurth Electronics Inc.
The information contained in this application note is
given as a hint for the implementation of the product
only and shall in no event be regarded as a
description or warranty of a certain functionality,
condition or quality of the product. Before
implementation of the product, the recipient of this
application note must verify any function and other
technical information given herein in the real
application. Infineon Technologies hereby disclaims
any and all warranties and liabilities of any kind
(including without limitation warranties of noninfringement of intellectual property rights of any
third party) with respect to any and all information
given in this application note.
The data contained in this document is exclusively
intended for technically trained staff. It is the
For further information on the product,
contact your nearest Infineon Technologies o
(www.infineon.com).
Please note that this product is not qualif
of the Automotive Electronics Council.
WARNINGS
Technologies office.
responsibility of customer’s technical departments
Document reference
AN2018-36 EVAL-M1-IM231-A User
to evaluate the suitability of the product for the
intended application and the completeness of the
product information given in this document with
respect to such application.
not be used in any applications where a failure of
reasonably be expected to result in personal injury.
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