Infineon EVAL-M1-IM231-A User Manual

AN2018

-36 EVAL-M1-IM231-A User Manual

EVAL-M1-IM231-A User Manual

iMOTION™ Modular Application Design Kit

About this document

Scope and purpose

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 document Revision 1.1

www.infineon.com 1 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 1 Safety 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

Safety precautions .......................................................................................................................... 3

Table of Contents ........................................................................................................................... 4

1 Introduction .................................................................................................................. 5

2 Main features ................................................................................................................ 6

2.1 EVAL-M1-IM231-A board specifications .................................................................................................. 7

3 Pin assignments ............................................................................................................ 9

4 Getting started with EVAL-M1-IM231-A ............................................................................ 11

4.1 Setting up the system............................................................................................................................ 11

4.2 iMOTION™ development tools and software ....................................................................................... 13

4.2.1 MCEWizard setup overview .............................................................................................................. 13

4.2.2 MCEDesigner setup overview .......................................................................................................... 15

5 Schematics and layout .................................................................................................. 17

5.1.1 DC bus sensing and MCEWizard configuration ............................................................................... 17

5.1.2 Motor external current feedback configuration and calculation ................................................... 18

5.1.3 Inverter overcurrent protection and motor Gatekill configuration ............................................... 20

5.2 EMI filter and rectifier circuit ................................................................................................................. 22

5.3 Inverter section using CIPOS™ Micro .................................................................................................... 23

5.4 Auxiliary power supply .......................................................................................................................... 24

5.5 Schematics for EVAL-M1-IM231-A ......................................................................................................... 25

5.6 Layout .................................................................................................................................................... 27

6 Bill of materials of EVAL-M1-IM231-A ............................................................................... 31

7 Reference .................................................................................................................... 34

Revision history............................................................................................................................. 35

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Introduction

1 Introduction

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

trip

VFO

HVIC

Itrip

VFO

Line

Neutral

EMI Filter

& Soft

Power Up

Circuit

Power Supply

PWM

15V & 3.3V

DCBsense

20 pin iMOTION

MADK-M1 connector

Figure 1 The 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

2 Main 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

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Main features

Value

Conditions

2.1 EVAL-M1-IM231-A board specifications

Table 2 shows the important specifications of the evaluation board EVAL-M1-IM231-A.

Table 2 EVAL-M1-IM231-A board specifications

Parameters

Input

Voltage

Input current 1.8 A

165 - 265 V

rms

Lower AC input, less motor power output

Input 220 VAC, Ta=25C, IM231

Output

Power (3 phases) 400 W Input 220 V

Current per leg 2.2 Arms Input 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

RS3, RS4, RS5 or adapting comparator threshold changing resistor R35

, f

=6 kHz, Ta=25°C, Th=70°C

PWM

, f

=6 kHz, Ta=25°C, Tc=100°C

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.

1. CIPOS™ Micro IPM and

Heatsink.

2. Motor phase connector (J2)

3. J3-20 pin iMOTION™

MADK-M1 interface connector for controller board

4. AC line input connector (J1)

5. EMI filter and rectifier group

6. Auxiliary power supply

Figure 2 Functional groups of the EVAL-M1-IM231-A evaluation board’s top side

7. ICE5GR4780AG U2

8. Current sensing shunt

resistor RS3, RS4, RS5

Figure 3 Functional groups of the EVAL-M1-IM231-A evaluation board’s bottom side

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Pin assignments

3 Pin 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 3 J2- 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 4 J3- 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 5 J4 - 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

PC-USB

onnector

Motor

hase

utput

AC Power

nput

4 Getting 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.

4.1 Setting 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 4 System 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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