Infineon REF Fridge User Manual

User guide Please read the Important notice and the Safety precautions and the Warnings V 1.0

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UG-2020-17

REF_Fridge_C101T_IM231 user guide

Refrigerator compressor driver reference design kit

About this document

Scope and purpose

This user guide provides an overview of the reference design board REF_Fridge_C101T_IM231 including its main features, key data, pin assignments and mechanical dimensions, and the guidance on how to run and design the motor with board.

The REF_Fridge_C101T_IM231 board is a complete reference design board designed for refrigerator compressors. It demonstrates the entire Infineon solution including CIPOS™ Micro Pro series IPM IM231-L6S1B, digital motor control IC iMOTIONTM IMC101T-T038 and linear voltage regulators IFX54211MB V33.

The REF_Fridge_C101T_IM231 board is developed to support customers in designing their refrigerator compressor drivers with Infineon products.

Intended audience

This user guide is intended for technical specialists working with the REF_Fridge_C101T_IM231 board and refrigerator compressor driver design.

Reference board/kit

Product(s) embedded on a PCB, with focus on specific applications and defined use cases that can include Software. PCB and auxiliary circuits are optimized for the requirements of the target application.

Note: Boards do not necessarily meet safety, EMI, quality standards (for example UL, CE) requirements.

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Important notice

“Evaluation Boards and Reference Boards” shall mean products embedded on a printed circuit board

(PCB) for demonstration and/or evaluation purposes, which include, without limitation, demonstration, reference and evaluation boards, kits and design (collectively referred to as “Reference Board”).

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).

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 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 is obliged to ensure that the use of the Evaluation Boards and Reference Boards does not cause any harm to persons or third party property. 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

Note: 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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Table of contents

About this document ....................................................................................................................... 1

Important notice ............................................................................................................................ 2

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

Table of contents ............................................................................................................................ 4

1 The board at a glance .............................................................................................................. 5

1.1 Delivery content ...................................................................................................................................... 5

1.2 Block diagram .......................................................................................................................................... 5

1.3 Main features ........................................................................................................................................... 6

1.4 Board parameters and technical data .................................................................................................... 7

2 System and functional description ........................................................................................... 9

2.1 Commissioning ........................................................................................................................................ 9

2.1.1 Hardware connection ...................................................................................................................... 10

2.1.2 Software/firmware preparation ...................................................................................................... 11

2.1.3 Program firmware/parameters/script............................................................................................. 11

2.1.4 Open-loop diagnostic ...................................................................................................................... 13

2.1.5 Closed-loop run ................................................................................................................................ 14

2.2 Description of the functional blocks ..................................................................................................... 15

2.2.1 IPM .................................................................................................................................................... 15

2.2.2 DC bus sensing and MCEWizard configuration ............................................................................... 16

2.2.3 Current sensing and overcurrent protection .................................................................................. 17

2.2.3.1 Current sensing ........................................................................................................................... 17

2.2.3.2 Overcurrent protection ............................................................................................................... 19

2.2.4 NTC sensing and thermal protection .............................................................................................. 22

2.3 Frequency signal interface .................................................................................................................... 23

2.4 Linear voltage regulator and control .................................................................................................... 24

3 Details of the schematics, layout, BOM and connectors ............................................................. 25

3.1 Schematics ............................................................................................................................................ 25

3.2 Layout .................................................................................................................................................... 25

3.3 Bill of material ....................................................................................................................................... 26

3.4 Connector details .................................................................................................................................. 28

4 System performance ............................................................................................................. 29

4.1 Thermal characterization test .............................................................................................................. 29

5 Reference and appendices ..................................................................................................... 31

5.1 Abbreviations and definitions ............................................................................................................... 31

5.2 Reference ............................................................................................................................................... 31

5.3 Additional information .......................................................................................................................... 31

Revision history............................................................................................................................. 32

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The board at a glance

1 The board at a glance

The REF_Fridge_C101T_IM231 reference design kit is a part of the iMOTION™ reference design kit for motor drives, which is aimed at driver applications for refrigerator compressors. The kit is a ready-to-use solution in combination with Infineon products such as CIPOS™ Micro Pro IPM IM231-L6S1B, digital motor control IC iMOTION

IMC101T-T038 and linear voltage regulator IFX54211MB V33. It can easily be switched to a final mass-

production application board, and has a fast time to market.

The REF_Fridge_C101T_IM231 reference board is available from Infineon. The features of this board are described in Chapter 1.3 of this document (UG-2020-17). The remaining sections provide information to enable customers to copy, modify and qualify the design for production according to their own specific requirements.

Environmental conditions have been considered in the design of the REF_Fridge_C101T_IM231. The design was tested as described in this document but not qualified in terms of safety requirements or manufacturing and operation over the entire operating temperature range or lifetime. The boards provided by Infineon are subject to functional testing only.

The boards are not subject to the same procedures as regular products in terms of returned material analysis (RMA), process change notification (PCN) and product discontinuation (PD). Reference boards are intended for use under laboratory conditions by specialists only.

1.1 Delivery content

The delivery content only contains the board as Figure 2 shown, the detail ordering information is indicated in the Table 2.

The iMOTIONTM Link cable shown in the Figure 4 is mandatory for the tuning, and it is not included in the delivery content, please order it if you do not have, ordering information can be found in the section 5.3.

Table 2 Delivery content

1.2 Block diagram

Figure 1 The block diagram of the REF_Fridge_C101T_IM231 reference board

Base part number

Package

Standard pack

Orderable part number Form

Quantity

REF_Fridge_C101T_IM231

Boxed

REFFRIDGEC101TIM231TOBO1

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The board at a glance

Figure 1 shows the reference design kit REF_Fridge_C101T_IM231. This document explains the features and details.

Figure 2 depicts the functional groups of the board. Connecter definition details are described in section 0; please see this section if you need more information.

Figure 2 Functional groups on top side of board

1.3 Main features

REF_Fridge_C101T_IM231 is a complete reference design board including a 3-phase IPM for motor drive applications. The kit demonstrates Infineon’s IPM technology for motor drives.

Main features of IPM IM231-L6S1B include

[1]

 Based on low V

CE(sat)

TRENCHSTOP™ IGBT6

 Integrated bootstrap function  All 6 switches turn off during protection  Accurate overcurrent protection (±5%)  Fault reporting and programmable fault clear  Built-in temperature sensor  Isolation 2000 V

RMS

, 1 min

 Motor power rating up to 400 W at 10 kHz  UL-certified

1. EMI filter and rectifier

group

2. DC bus capacitor

3. Motor phase connector

(J3)

4. CIPOS™ Micro IPM

5. Auxiliary power supply

6. IMC101T-T038

7. AC line input connector

(J1)

8. iMOTION

Link connector

(J6)

9. Frequency input signal

connector (J2)

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The board at a glance

Main features of iMOTION™ controller IMC101T include

[2]

 Motion control engine as ready-to-use controller solution for sensorless and Hall-sensor motor drives  Field-oriented control (FOC) for permanent magnet synchronous motor (PMSM/BLDC)  Optional support for Hall sensors (analog or digital)  Space vector PWM with sinusoidal commutation and integrated protection features  Current sensing via single shunt or leg shunt  Integrated analog comparators for overcurrent protection  Integrated scripting engine for application flexibility  3.3 V or 5.0 V supply voltage options for controller  Flexible host interface options for speed commands: UART, SPI, PWM or analog signal  Class B pre-certification (IEC60335) for MCE2.0 firmware

For more information about the above-mentioned products, refer to the corresponding reference material.

1.4 Board parameters and technical data

Table 3 depicts the important specifications of the reference design REF_Fridge_C101T_IM231.

Table 3 REF_Fridge_C101T_IM231 board specifications

Parameter

Symbol

Conditions / comments

Value

Unit

Operation input voltage

Vac

Lower AC input, less motor power output

165 ~ 265

rms

Maximum input current

ac(max)

Input 220 VAC, Ta=25C

1.5

rms

Maximum input power

in(max)

Input 220 VAC, f

PWM

=5 kHz, Ta=25°C, T

case

= 100°C

without heat sink

200

Maximum motor current

mtr(max)

Input 220 VAC, f

PWM

=5 kHz, Ta=25°C, T

case

= 100°C

without heat sink

0.6

rms

Maximum DC bus voltage

dc(max)

400

Shunt Resistance

Rsh 150

mΩ

Protection

Current protection trigger level

trip

Level by external comparator circuit

3.05 1

peak

Thermal protection level

protection

Temperature gap between junction and NTC (negative temperature coefficient) sensor needs to be considered; recommended is a setting of 105°C or less

105

°C

Auxiliary power supply 1 - 15V

Output voltage

out1

15 ± 5%

Maximum output current

out1

100

Auxiliary power supply 2 - 3.3V

Output voltage

out2

3.3 ± 5%

Maximum output current

out2

150

PCB characteristics

Dimension

Length × width × height

78×78×46

Material

1.6 mm thickness, 1 oz. copper

FR4

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The board at a glance Parameter

Symbol

Conditions / comments

Value

Unit

System environment

Ambient temperature

Non-condensing, maximum RH of 95%

0 ~ 50

°C

Note: 1. For iMOTION™ IC IMC1xx, there are three types of Gatekill input source options in MCEWizard

setup. If “comparator” mode is selected, the external Gatekill signal will be not used, and the signal V

Shunt

will be compared by the internal comparator with the “Device overcurrent trigger level

setting” value set in MCEWizard.

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System and functional description

2 System and functional description

2.1 Commissioning

Hardware connection

Program firmware/parameters/script

Software/firmware preparation

Open-loop diagnostic

Closed-loop run

1- iMOTION LINK to bridge the MCE and PC

2- Connect AC source (J1) and Motor (J3)

1- Program the firmware/parameters through the iMOTION LINK by MCEDesigner, IMC101T can be powered up by iMOTIONTM Link, or be powered by auxiliary power supply on the

board after the AC source is powered

2- Program script file if available

1 - Install MCEDesigner/MCEWizard 2 - Download the firmware of MCE 3 - Generate parameters file (.txt) by

MCEWizard, used to transfer the

hardware/motor parameters to register values

4 - Generate script file if available

1- Power up AC power supply

2- Run build-in function VF Diagnostic to verify current/DC bus sensing, hardware connection and parameters

1- Run motor in closed-loop mode by start

motor function, tune the parameters

Figure 3 Basic process for running the motor the first time

This section describes how to get the system working when user first installs the board (refer to Figure 3 for general steps). The following items detail these steps. For those who are already familiar with the system, or have already run the board, unnecessary steps can be skipped depending on user’s actual situation. For more in-depth commissioning requirements, please refer to the MCE reference manual or the corresponding reference material

[5][6][7]

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System and functional description

2.1.1 Hardware connection

Figure 4 shows the hardware connection details for the reference design board.

The iMOTIONTM Link cable is needed to bridge the PC/debugger side and motor drive system (the target iMOTION™ device, hot side) with 1 kV DC galvanic isolation. Users can go to section 5.3 for more information about iMOTIONTM Link.

1. Connect iMOTION

Link’s 8-pin cable to J6 with default pin order, and connect PC and iMOTIONTM Link with

the USB wire.

2. Then connect AC power supply (J1) and the motor (J3).

Figure 4 Hardware connection details

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