ST 1 kW three-phase motor control demonstration board featuring L6390 drivers and STGP10NC60KD IGBT User Manual

UM0723

User manual

1 kW three-phase motor control demonstration board featuring L6390 drivers and STGP10NC60KD IGBT

1 Introduction

This document describes the 1 kW three-phase motor control demonstration board featuring the L6390 high and low-side drivers and the STGP10NC60KD IGBT. The demonstration board is an AC/DC inverter that generates a three-phase waveform for driving three or twophase motors such as induction motors or PMSM motors up to 1000 W with or without sensors.

The main device presented in this user manual is a universal, fully evaluated, and populated design consisting of a three-phase inverter bridge based on the 600 V STMicroelectronics™

IGBT STGP10NC60KD in a TO-220 package mounted on a heatsink, and the L6390 highvoltage high-side and low-side driver featuring an integrated comparator for hardware protection features such as overcurrent and overtemperature. The driver also integrates an operational amplifier suitable for advanced current sensing. Thanks to this advanced characteristic, the system has been specifically designed to achieve an accurate and fast conditioning of the current feedback, therefore matching the typical requirements in field oriented control (FOC).

The board has been designed to be compatible with single-phase mains, supplying from

90 VAC to 285 VAC or from 125 VDC to 400 VDC for DC voltage. With reconfiguration of the input sourcing, the board is suitable also for low-voltage DC applications up to 35 VDC. This document is associated with the release of the STEVAL-IHM023V2 demonstration board

(see Figure 1

below).

Figure 1.

STEVAL-IHM023V2

June 2011 Doc ID 15870 Rev 4 1/48

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Contents

Contents

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Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

System introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1

Main characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2

Target applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3

Safety and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3.1

2.3.2

2.3.3

2.3.4

2.3.5

General terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Demonstration board intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Demonstration board installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Demonstration board operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1

System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.2

The board schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.3

Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3.1

3.3.2

3.3.3

3.3.4

3.3.5

3.3.6

3.3.7

3.3.8

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Inrush limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Brake function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Gate driving circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Current sensing amplifying network . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

The tachometer and Hall/encoder inputs . . . . . . . . . . . . . . . . . . . . . . . . 23

Temperature feedback and overtemperature protection . . . . . . . . . . . . 23

Hardware setting of the STEVAL-IHM023V2 . . . . . . . . . . . . . . . . . . . . . 24

4.1

Hardware settings for six-step (block commutation) control of BLDC motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.2

Hardware settings for “Field Oriented Control” (FOC) in single-shunt topology current reading configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.3

Hardware settings for FOC in three-shunt configuration . . . . . . . . . . . . . 27

Description of jumpers, test pins, and connectors . . . . . . . . . . . . . . . 30

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Contents

Connector placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Using STEVAL-IHM023V2 with STM32 PMSM FOC firmware library v3.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1

Environmental considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.2

Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.3

Software requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.4

STM32 FOC firmware library v3.0 customization . . . . . . . . . . . . . . . . . . . 45

Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

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List of tables

List of tables

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Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Current reading configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Jumper settings for high-voltage BLDC motor in six-step control . . . . . . . . . . . . . . . . . . . . 24

Jumper settings for low-voltage BLDC motor in six-step control . . . . . . . . . . . . . . . . . . . . 25

Jumper settings for high-voltage PMAC or generic AC motor in single-shunt

FOC control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Jumper settings for low-voltage BLDC motor in single-shunt FOC control. . . . . . . . . . . . . 27

Jumper settings for FOC of HV PMSM, BLDC, or AC IM in three-shunt configuration for current reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 7.

Table 8.

Table 9.

Jumper settings for FOC of LV PMSM or BLDC in three-shunt configuration for current reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Jumpers description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Connector pinout description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 10.

Testing pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 11.

Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 12.

STEVAL-IHM023V2 motor control workbench parameters . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 13.

Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

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List of figures

List of figures

Figure 1.

STEVAL-IHM023V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2.

Motor control system architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 3.

STEVAL- IHM023V2 schematic - part 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 4.

STEVAL- IHM023V2 schematic - part 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 5.

STEVAL- IHM023V2 schematic - part 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 6.

STEVAL- IHM023V2 schematic - part 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 7.

STEVAL- IHM023V2 schematic - part 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 8.

STEVAL- IHM023V2 schematic - part 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 9.

Power supply block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 10.

Gate driving network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 11.

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

Figure 12.

Three-shunt configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 13.

Six-step current sensing configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 14.

NTC placement on the heatsink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 15.

STEVAL-IHM023V2 connectors placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 16.

Silk screen - top side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 17.

Silk screen - bottom side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Figure 18.

Copper tracks - top side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 19.

Copper tracks - bottom side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

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System introduction UM0723

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●

●

●

●

●

●

●

●

●

●

●

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●

The information below lists the converter specification data and the main parameters set for the STEVAL-IHM023V2 demonstration board.

Minimum input voltage 125 VDC or 90 VAC

Maximum input voltage 400 VDC or 285 VAC

With applied input voltage doubler - the range is from 65 VAC to 145 VAC

Voltage range for low-voltage motor control applications from 18 VDC to 35 VDC

Possibility to use auxiliary +15 V supply voltage

Maximum output power for motors up to 1000 W

Regenerative brake control feature

Input inrush limitation with bypassing relay

+ 15 V auxiliary power supply based on buck converter with VIPer™16

IGBT power switch STGP10NC60KD in TO-220 package - compatible with other ST

IGBTs or power MOSFETs in TO-220 package

Fully populated board conception with testing points and isolated plastic safety cover

Motor control connector for interface with STM3210B-EVAL board and other ST motor control dedicated kits

Tachometer input

Hall/encoder inputs

●

Possibility to connect BEMF daughterboard for sensorless six-step control of BLDC motors

PCB type and size:

– Material of PCB - FR-4

– Double-sided layout

– Copper thickness: 60 µm

– Total dimensions of demonstration board: 127 mm x 180 mm.

●

●

●

●

Washing machines

Home appliances

Medical applications - rehabilitative beds

High-power, high-efficiency water pumps for heating applications.

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2.3 Safety and operating instructions

System introduction

Warning: During assembly, testing, and operation, the demonstration board poses several inherent hazards, including bare wires, moving or rotating parts, and hot surfaces. There is a danger of serious personal injury and damage to property, if the kit or components are improperly used or installed incorrectly.

The kit is not electrically isolated from the AC/DC input. The demonstration board is directly linked to the mains voltage.

No insulation has been placed between the accessible parts and the high-voltage. All measurement equipment must be isolated from the mains before powering the board. When using an oscilloscope with the demonstration board, it must be isolated from the AC line. This prevents a shock from occurring as a result of touching any single point in the circuit, but does NOT prevent shocks when touching two or more points in the circuit. Do not touch the demonstration board after disconnection from the voltage supply, as several parts and power terminals, which contain energized capacitors, need to be allowed to discharge.

2.3.2

2.3.3

All operations involving transportation, installation and use, as well as maintenance, are to be carried out by skilled technical personnel (national accident prevention rules must be observed). For the purpose of these basic safety instructions, “skilled technical personnel” are suitably qualified people who are familiar with the installation, use and maintenance of powered electronic systems.

Demonstration board intended use

The STEVAL-IHM023V2 demonstration board is a component designed for demonstration purposes only and is not to be used for electrical installation or machinery. The technical data as well as information concerning the power supply conditions should be taken from the documentation and strictly observed.

Demonstration board installation

●

●

The installation and cooling of the demonstration kit boards must be in accordance with the specifications and the targeted application.

● The motor drive converters are protected against excessive strain. In particular, no components are to be bent or isolating distances altered during the course of transportation or handling.

No contact must be made with other electronic components and contacts.

The boards contain electro-statically sensitive components that are prone to damage through improper use. Electrical components must not be mechanically damaged or destroyed.

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System introduction UM0723

2.3.5

Applicable national accident prevention rules must be followed when working on the main power supply with a motor drive. The electrical installation must be completed in accordance with the appropriate requirements.

Demonstration board operation

A system architecture which supplies power to the demonstration board should be equipped with additional control and protective devices in accordance with the applicable safety requirements (e.g. compliance with technical equipment and accident prevention rules).

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UM0723 Board description

A generic motor control system can be basically schematized as the arrangement of four main blocks (see

Figure 2

below).

● A control block - its main task is to accept user commands and motor drive configuration parameters and to provide all digital signals to implement the proper motor driving strategy. The ST demonstration board based on the STM32™ microcontroller STM3210B-EVAL can be used as a control block thanks to the motor control connector used on the board.

● A power block - makes a power conversion from the DC bus transferring to the motor by means of a three-phase inverter topology. The power block is based on high-voltage

(high and low-side) drivers (L6390) and power switches (STGP10NC60KD) in TO-220 packages.

●

●

The motor itself - the STEVAL-IHM023V2 demonstration board is able to properly drive any PMSM, but the FOC itself is conceived for sinusoidal-shaped BEMF. The demonstration board is also suitable for driving any three or two-phase asynchronous motor or low-voltage BLDC motors.

Power supply block - able to work from 90 VAC to 285 VAC or from 125 VDC to

400 VDC. With reconfiguration of the power stage with jumpers, the board can also be used for low-voltage applications from 18 VDC to 35 VDC. By supplying the electronic parts on the board through an external + 15 V connector, the board can be used for

a wide voltage range up to 400 VDC. Please refer to Section 4 for detailed settings of

the jumpers according to the required application.

Figure 2.

Motor control system architecture

#ONTROLBLOCK

-/4/2

0OWERSUPPLY 0OWERBLOCK

!-6

Referring to the above motor control system architecture, the STEVAL-IHM023V2 includes the power supply and the power block hardware blocks.

Doc ID 15870 Rev 4 9/48

Board description

3.2 The board schematic

Figure 3.

STEVAL- IHM023V2 schematic - part 1

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Figure 4.

STEVAL- IHM023V2 schematic - part 2

Board description

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Doc ID 15870 Rev 4 11/48

Board description

Figure 5.

STEVAL- IHM023V2 schematic - part 3

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12/48 Doc ID 15870 Rev 4

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Figure 6.

STEVAL- IHM023V2 schematic - part 4

Board description

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Doc ID 15870 Rev 4 13/48

Board description

Figure 7.

STEVAL- IHM023V2 schematic - part 5

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14/48 Doc ID 15870 Rev 4

UM0723

Figure 8.

STEVAL- IHM023V2 schematic - part 6

Board description

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Doc ID 15870 Rev 4 15/48

Board description UM0723

Note:

The power supply in the STEVAL-IHM023V2 demonstration board is implemented as a multifunctional block which allows to supply the inverter in all ranges of input voltage up to

285 VAC or 400 VDC. If the input AC voltage does not surpass 145 VAC, it is possible to apply the input voltage doubler, this is done by shorting the W14 jumper. This configuration almost doubles the input AC voltage to a standard level and allows to evaluate the motor control application with a low level of input AC voltage.

For high-voltage applications it is necessary to set W3 jumpers to position “HIGH

VOLTAGE”, the auxiliary power supply for supplying all active components on the demonstration board is implemented as a buck converter based on the U6 VIPer16L which works with fixed frequency 60 kHz. The output voltage of the converter is +15 VDC voltage which is fed into the L6390 drivers as supply voltage as well as into the linear regulator

L78L33ACD and L78M05ACDT. The linear regulator provides +3.3 VDC and +5 VDC for supplying the operational amplifiers and other related parts placed on the demonstration board. The selection of supply voltage for hardware peripherals placed on the board is done with jumper W1. In the “3.3 V” position the supply voltage selected is +3.3 V and in the “5 V” position it is +5 V. Thanks to jumper W6, it is possible to supply the connected MCU driving board with related supply voltage. In this case, the maximal consumptive current of the MCU unit has not overreached 50 mA. Please refer to the ST released VIPer16LD datasheet for further information on this concept.

For low-voltage applications, the step-down converter must be disabled by setting the W3 jumper to position “<35 V ONLY”. In this case, the other linear regulator, L7815, is connected directly on the bus line, to provide auxiliary voltage + 15 VDC.

Please note that the voltage range in this kind of application must be in the range + 18 VDC to + 35 VDC.

For low-voltage DC motor applications which require a voltage lower than + 18 VDC, a dual supply mode can be used. Voltage on the input connector is normally linked through power switches to the motor and an external auxiliary voltage is fed through the J3 connector from an external power source. The voltage of the external power supply used must be in the range + 14.8 V to + 15.5 V with maximal consumption current 0.5 A.

The information regarding the value of the supply bus voltage on the main filtering capacitors is sensed with the voltage divider built around R2, R4, and R7 and is fed into the dedicated control unit through the J5 connector. The proper voltage partitioning for applied resistors values is 0.0075.

The presence of +15 VDC on the board is indicated with green LED D7. For a better understanding of the concept,

Figure 9 describes the power supply in a block diagram.

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UM0723 Board description

Figure 9.

Power supply block diagram

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,INEARREGULATOR

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7

"RIDGE

RECTIFIER

7

6OLTAGE

DOUBLER

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6$#

,INEARREGULATOR

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The input stage of the demonstration board is provided with the 10 Ω NTC resistor to eliminate input inrush current peak during charging of the bulk capacitors. To achieve a higher efficiency of the inverter, it is possible to bypass the NTC after the startup phase.

The NTC bypass signal is provided from the MCU board through the J5 connector. The yellow D27 LED diode is turned off when the inrush NTC is bypassed.

The STEVAL-IHM023V2 demonstration board contains only a basic EMI filter based on X2 and Y2 capacitors. The main function of this demonstration board is as a universal testing platform. For this reason, the EMI filter is not able to absorb EMI distortion coming from the inverter for all ranges of the applications used and the design of the filter is up to the user.

The EMI filter must be designed according to the motor and final target applications used.

The heatsink itself is connected to the earth pin in the input J1 connector. If the demonstration board is used only with DC voltage, it is recommended to connect the heatsink to a negative voltage potential - common ground.

The hardware brake feature has been implemented on the STEVAL-IHM023V2 demonstration board. This feature connects the external resistive load applied to the J6 connector to the bus to eliminate overvoltage generated when the motor acts as a generator. Such a connected load must be able to dissipate all motor generated energy.

The brake feature functions automatically in the case of bus overvoltage. Voltage on the bus is sensed through the voltage divider with resistors R23, R24, and R31 and compared to the voltage reference built around the Zener diode D26. The brake dummy load is switched on when voltage on the bus reaches 440 VDC and is switched off when the voltage falls below

420 VDC. This voltage level has been chosen to be fully compliant with the possible use of front-end PFC stage. Another possibility, to activate the brake dummy load, is to use the external signal coming through the J5 motor connector (PWM_Brake signal) from the connected MCU board. This function is active with the jumper W5 in position “ R_BRAKE ”.

The brake threshold levels can be modified by calculating R23, R24, and R34 new values.

The D28 red LED diode indicates acting brake switch.

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Board description UM0723

The gates of the switches of the IGBT used are controlled by the L6390D drivers. Please refer to the L6390 datasheet for a detailed analysis of the driver parameters.

Figure 10

shows the correct driving of the IGBT. As can be seen, the charging current for the

IGBT is different compared to the discharging current due to the diode used. The configuration used provides the best trade-off between efficiency and EMI distortion.

Thanks to the high-performance L6390 driver, the deadtime insertion between the HVG and

LVG outputs is hardware-guaranteed. In this case, considering the value of the deadtime resistors used to be 47 k Ω , the DT of about 600 ns is applied on the outputs in case:

● The deadtime is not present on HIN and LIN inputs signals.

● The deadtime present on HIN and LIN inputs is less than hardware-set DT.

On the contrary, the hardware-set deadtime is not the sum of the deadtime present on the outputs between LVG and HVG if the deadtime present on the HIN and LIN inputs signals is higher than the hardware-set deadtime.

Figure 10.

Gate driving network

R41 10 Ω D14

R45 120

Ω

1N4148

1

2

Q7

STGP10NC60KD

3

AM00472a

Hardware overcurrent protection (OCP) is implemented on the board. This feature takes full advantage of the L6390 driver where an internal comparator is implemented. Thanks to the internal connection between the comparator output and shutdown block, the intervention time of the overcurrent protection is extremely low, ranging slightly above 200 ns. Please

see Figure 11 below for details of the OCP.

Considering that the overcurrent protection acts as soon as the voltage on the CP+ pin of the L6390 rises above (approximately equal to) 0.53 V, and considering the default value of the shunt resistor, it follows that the default value for the maximum allowed current is equal to:

Equation 1

I

SHU NT MAX

= ----------------------

R

V

SHUNT

×

⎝

⎛

1 + --------

R2

⎠

⎞ with the default values this gives:

I

SHUNT_MAX

= 7 A

18/48 Doc ID 15870 Rev 4

UM0723 Board description

Figure 11.

Overcurrent protection

+3.3 V

3.3.6

OPOUT

7

+5 V

Smart SD

COMPARATOR

+

–

10 CP+

VCC

OPAMP

+

–

VREF

OP+

6 OP–

L6390

R3 (R49, R73, R96)

R1 (R47, R67, R95)

R2 (50, R70, R93)

Shunt resistor

GND

AM00473

The overcurrent protection can be disabled with software if the W5 jumper is set to the “OCP

OFF” position. This may be necessary and is often useful when the user decides to make the brake operate by turning on the three low-side switches. In fact, if the motor acts as a generator, it's necessary to protect the hardware, preventing the bus voltage from exceeding a safety threshold. In addition to dissipating the motor energy on a brake resistor, it's possible to short the motor phases, preventing the motor current from flowing through the bulk capacitors.

Please note that with disabling of the OCP, the demonstration board is not protected against any overcurrent event.

Current sensing amplifying network

●

●

●

The STEVAL-IHM023V2 motor control demonstration board can be configured to run in various current reading configuration modes:

Three-shunt configuration - suitable for the use of field oriented control (FOC)

Single-shunt configuration - suitable for the use of FOC in a single-shunt configuration

Single-shunt six-step configuration - suitable for scalar control

Configuration with a shunt resistor, where voltage amplified with an operational amplifier is sensed, was chosen as the current sensing networks. Single-shunt configuration requires a single op amp, three-shunt configuration requires three op amps. Just for compatibility purposes, one of them is common to both basic configurations.

The configuration jumpers W10 and W11 allow the user to set the common op amp to achieve the compatibility between single-shunt six-step configuration (suitable for scalar control) and three-shunt or single-shunt FOC current reading configuration.

Three-shunt FOC or single-shunt FOC current reading configuration

The details of the three-shunt current sensing reading configuration are shown in

Figure 12 .

In this configuration, the alternating signal on the shunt resistor, with positive and negative

Doc ID 15870 Rev 4 19/48

Board description UM0723 values, must be converted to be compatible with the single positive input of the microcontroller A/D converter used to read the current value. This means that the op amp must be polarized in order to obtain a voltage on the output that makes it possible to measure the symmetrical alternating input signal.

The op amp is used in follower mode with the gain of the op amp set by resistor r and R:

Equation 2

G =

R r

+ r

It is possible to calculate the voltage on the output of the op amp, OP OUT - V

OUT

, as the sum of a bias, V

BIAS

, and a signal, V

SIGN

, component equal to:

Equation 3

V

OU T

= V

SIGN

+ V

BIAS

V

BI AS

=

⎛

⎝

R1

+

R2

3.3

×

G

+ --------

R3

⎠

⎞

×

R3

V

SIGN

=

⎛

⎝

I

×

R

---------------------------------------------------------×

G

R1

+

R2

+ --------

R3

⎠

⎞

×

R1

Total gain of the circuit including the resistors’ divider is equal to:

Equation 4

G

TOT

=

V

----------------

V

IN

=

V

-----------------------------

R

SHUN T × I with the default values this gives:

●

●

●

●

V

G = 4.3

G

BIAS

TOT

= 1.7 V

= 1.7

Maximum current amplifiable without distortion is 6.5 A.

Please observe that the user can modify the max. current value by changing the values of the shunt resistors.

20/48 Doc ID 15870 Rev 4

UM0723

Figure 12.

Three-shunt configuration

Board description

OPOUT

+5 V

Smart SD

COMPARATOR

–

10 CP+

OPAMP

VCC

–

VREF

9 OP+

6 OP –

L6390

+3.3 V

R3 (R52, R78, R97)

(R53, R75, R99)

R2 (R54, R76, R100)

Shunt resistor

R (R46, R66, R92) r (R48, R72, R94)

GND

AM00474

For previously mentioned FOC configurations it is necessary to set the proper gain by applying the W10 jumper and by applying the W11 jumper to the dash marked position.

Six-step (block commutation) current reading configuration

In case of six-step (also called block commutation) current control, only two of the motor phases conduct current at the same time. Therefore, it is possible to use only one shunt resistor placed on the DC link to measure the motor phase current. Moreover, as the current is always flowing on the shunt resistor in the same direction, only positive current must be measured, and in this case, the amplifying network needs to be properly designed. The details of single-shunt current sensing reading configuration are shown in

Figure 13

. In this configuration, the current sampling is done only when the value on the shunt resistor is positive. The only positive value read on the shunt resistor allows the setting of a higher gain for the op amp than the one set in the three-shunt reading mode.

The op amp is used in follower mode with the gain of the op amp set by resistor r and R:

Equation 5

G =

R r

+ r

It is possible to calculate the voltage on the output of the op amp, OP OUT V

OUT

, as the sum of a bias, V

BIAS

, and a signal, V

SIGN

, component equal to:

Equation 6

V

OU T

= V

SIGN

+ V

BIAS

Doc ID 15870 Rev 4 21/48

Board description UM0723

V

BI AS

=

⎛

⎝

R3

+

3.3

R1

×

+

R1

R2

+

+

R2

--------

R4

⎠

⎞

×

R4

×

G

V

SIGN

=

I

×

R

SH UNT

×

R2

----------------------------------------------

R1 + R2

+

×

R1

----------------------------------------------------------------------------------------------

⎛

⎝

R3

+

R1

I

×

+

R

R2

+ --------

R4

⎠

⎞

× (

R1 + R2

) 2

×

G

Total gain of the circuit with the resistors’ divider is equal to:

Equation 7

G

TOT

=

V

----------------

V

IN

=

V

-------------------------------

R

SH UNT

I

●

●

●

● with the default values this gives:

V

BIAS

= 1.7 V

G = 4.98

G

TOT

= 2.53

Maximum current amplifiable without distortion is 6.5 A.

Please observe that the user can modify the max. current value by changing the values of the shunt resistors.

Figure 13.

Six-step current sensing configuration

+3.3 V

+5 V

Smart SD

COMPARATOR

+

–

10 CP+

R2 (R79)

R4 (R80)

VCC

OPAMP

+

–

VREF

9 OP+

R1 (R75)

OPOUT 7

6 OP–

L6390

R3 (R81)

Shunt resistor

R (R66 + R69) r (R72)

GND

AM00475

22/48 Doc ID 15870 Rev 4

UM0723 Board description

For six-step configurations it is necessary to set the proper gain by removing the W10 jumper and applying the W11 jumper to the not marked position.

In

Table 1 the mentioned setting of gain jumpers, for all possible current reading

configurations, is shown.

Table 1.

Jumper

Current reading configuration

Gain configuration

Six-step current reading FOC current reading

W10

W11

Not present

Not marked position

Present

“-” position

3.3.7

3.3.8

The tachometer and Hall/encoder inputs

Both the tachometer and Hall/encoder inputs have been implemented on the board. In the case of using a Hall or encoder sensor, the W4 jumper must be connected and the W7 jumper disconnected. The W16 jumper set to dash marked “-” position allows to supply any connected Hall sensor with +5 VDC supply voltage. Setting the W16 jumper to not marked position supplies the Hall sensor with the same supply voltage as other hardware peripherals (+3.3 VDC or +5 VDC depend on the W1 jumper). The U11 Hex Schmitt inverter is used as the voltage level shifter for the connected Hall sensor.

In the case of using a tachometer, the W4 jumper must be disconnected and the W7 jumper connected.This feature allows to test and evaluate a wide spectrum of various motors.

Temperature feedback and overtemperature protection

Hardware overtemperature protection is implemented on the STEVAL-IHM023V2 demonstration board. This feature fully protects the switches against damage when temperature on the junction of the switches overruns a defined value. The temperature is sensed with an NTC resistor placed on the heatsink. The measured signal is fed through the

J5 motor connector to the MCU control unit and can be read with an A/D converter. The signal is also fed to comparator U8 where it is compared with a 2.5 V reference voltage which is built around the U9 precision reference Tl431. The output signal of the comparator

U8 is fed to the SD pin of the L6390D drivers to stop the commutation of the connected motor. With the value of the NTC resistor used equal to 10 k

Ω,

and resistor R44 equal to

3.6 k

Ω

, the shutdown temperature is around 70 °C.

Figure 14.

NTC placement on the heatsink

Doc ID 15870 Rev 4 23/48

Hardware setting of the STEVAL-IHM023V2

4 Hardware setting of the STEVAL-IHM023V2

UM0723

The STEVAL-IHM023V2 demonstration board can be driven through the J5 motor control connector by various MCU control units released by STMicroelectronics which feature a unified 34-pin motor connector (STM3210B-EVAL, STM32F100-EVAL, STEVAL-

IHM022v1, STM32F10E-EVAL, etc.). The demonstration board is suitable for both field oriented and scalar controls. In particular, it can handle output signal conditioning for different types of speed and/or position feedback sensors (such as tachometer, Hall sensors, and quadrature encoders) and different current sensing topologies (single-shunt resistor placed on DC bus or three-shunt resistors placed in the three inverter legs).

4.1 Hardware settings for six-step (block commutation) control of BLDC motors

●

●

●

●

To drive any motor, the user must ensure that:

● The motor control demonstration board is driven by a control board that provides the six output signals required to drive the three-phase power stage

The motor is connected to the J2 motor output connector

If using an encoder or Hall sensor connection, it is connected to connector J4

If using a tachometer connection, it is connected to connector J8

If using the brake control feature, connect a dissipative power load to J6 connector

Table 2

below shows the jumper settings for any BLDC high-voltage motors in six-step

(block commutation) control. Please confirm that the demonstration board input voltage is in the range of 125 VDC to 400 VDC or 90 VAC to 285 VAC. If the voltage doubler is applied, the input voltage must be in the range of 65 VAC to 145 VAC.

Table 2.

Jumper

Jumper settings for high-voltage BLDC motor in six-step control

Settings for any HV motor in six-step control

W1

W3

W4

W5

W6

W7

W9

W10

W11

“3.3 V” position for VDD = 3.3 V

“5 V” position for VDD = 5 V

“HIGH VOLTAGE” position

Present for Hall sensor or encoder

Not present for connected tachometer

“R_BRAKE” position for software handling of resistive brake (if any)

“OCP OFF” position for software handling of overcurrent protection disabling

Present for supplying stage from IHM023V2 (max. 50 mA)

Present for connected tachometer

Not present for connected Hall sensor or encoder

Single-shunt

Not present

Not marked position

24/48 Doc ID 15870 Rev 4

UM0723 Hardware setting of the STEVAL-IHM023V2

Table 2.

Jumper

Jumper settings for high-voltage BLDC motor in six-step control (continued)

Settings for any HV motor in six-step control

W13

W14

W16

Single-shunt

Present for voltage doubler

Not present for standard voltage range

Dash mark position of Hall/encoder with VDD

Not marked position for supplying Hall/encoder with +5 V

Table 3 shows jumper settings for a low-voltage BLDC motor. Please confirm that the input

voltage (mains voltage) of the demonstration board in this case is in the range of 18 VDC to

35 VDC. If it is necessary to supply the motor with a voltage lower than 18 VDC, please remove the W3 jumper and connect the auxiliary voltage to the J3 connector. This configuration is called “dual supply configuration”.

In this configuration it may be necessary to modify R2, R4, and R7 resistors according to applied supply voltage.

Table 3.

Jumper

Jumper settings for low-voltage BLDC motor in six-step control

Settings for any HV motor in six-step control

W1

W3

W4

W5

W6

W7

W9

W10

W11

W13

W14

W16

“3.3 V” position for V

DD

= 3.3 V

“5 V” position for V

DD

= 5 V

“<35 V ONLY” position

Present for Hall sensor or encoder

Not present for connected tachometer

“R_BRAKE” position for software handling of resistive brake (if any)

“OCP OFF” position for software handling of overcurrent protection disabling

Present for supplying stage from IHM023V2 (max. 50 mA)

Present for connected tachometer

Not present for connected Hall sensor or encoder

Single-shunt

Not present

Not marked position

Single-shunt

Present for voltage doubler

Not present for standard voltage range

Dash mark position of Hall/encoder with V

DD

Not marked position for supplying of Hall/encoder with +5 V

Doc ID 15870 Rev 4 25/48

Hardware setting of the STEVAL-IHM023V2

4.2

UM0723

Hardware settings for “Field Oriented Control” (FOC) in single-shunt topology current reading configuration

●

●

●

●

To drive any motor, the user must ensure that:

● The motor control demonstration board is driven by a control board that provides the six output signals required to drive the three-phase power stage

The motor is connected to the J2 motor output connector

If using an encoder or Hall sensor connection, it is connected to connector J4

If using a tachometer connection, it is connected to connector J8

If using the brake control feature, connect a dissipative power load to J6 connector

Table 4

below shows the jumper settings for any high-voltage motors in single-shunt FOC configuration. Please confirm that the demonstration board input voltage is in the range of

125 VDC to 400 VDC or 90 VAC to 285 VAC. If the voltage doubler is applied, the input voltage must be in the range of 65 VAC to 145 VAC.

Table 4.

Jumper

Jumper settings for high-voltage PMAC or generic AC motor in singleshunt FOC control

Jumper settings for FOC of HV PMSM, BLDC or AC IM in single-shunt configuration for current reading

W1

W3

W4

W5

W6

W7

W9

W10

W11

W13

W14

W16

“3.3 V” position for V

DD

= 3.3 V

“5 V” position for V

DD

= 5 V

“HIGH VOLTAGE” position

Present for Hall sensor or encoder

Not present for connected tachometer

“R_BRAKE” position for software handling of resistive brake (if any)

“OCP OFF” position for software handling of overcurrent protection disabling

Present for supplying control stage from IHM023v2 connector with V

DD mA)

(max. 50

Present for connected tachometer

Not present for connected Hall sensor or encoder

Single-shunt

Present

Dash mark position

Single-shunt

Not present

Dash marked position for supplying of Hall/encoder with V

DD

Not marked position for supplying of Hall/encoder with +5 V

26/48 Doc ID 15870 Rev 4

UM0723 Hardware setting of the STEVAL-IHM023V2

Table 5 shows jumper settings for a low-voltage BLDC motor in single-phase FOC current

control. Please confirm that the input voltage (mains voltage) of the demonstration board in this case is in the range of 18 VDC to 35 VDC. If it is necessary to supply the motor with a voltage lower than 18 VDC, please remove the W3 jumper and connect the auxiliary voltage to the J3 connector.

In this configuration it may be necessary to modify R2, R4, and R7 resistors according to applied supply voltage.

Table 5.

Jumper

Jumper settings for low-voltage BLDC motor in single-shunt FOC control

Settings for any LV BLDC motor in single-shunt FOC control

W1

W3

W4

W5

W6

W7

W9

W10

W11

W13

W14

W16

“3.3 V” position for V

DD

= 3.3 V

“5 V” position for V

DD

= 5 V

“<35 V ONLY” position

Present for Hall sensor or encoder

Not present for connected tachometer

“R_BRAKE” position for software handling of resistive brake (if any)

“OCP OFF” position for software handling of overcurrent protection disabling

Present for supplying control stage from IHM023v2 connector with V

DD

(max. 50 mA)

Present for connected tachometer

Not present for connected Hall sensor or encoder

Single-shunt

Present

Dash mark position

Single-shunt

Not present

Dash marked position for supplying of Hall/encoder with V

DD

Not marked position for supplying of Hall/encoder with +5 V

4.3 Hardware settings for FOC in three-shunt configuration

●

●

●

●

To drive any motor, the user must ensure that:

● The motor control demonstration board is driven by a control board that provides the six outputs signals required to drive the three-phase power stage

The motor is connected to the J4 motor output connector

If using an encoder or Hall sensor connection, it is connected to connector J5

If using a tachometer connection, it is connected to connector J6

If using the brake control feature, connect a dissipative power load to J7 connector

Doc ID 15870 Rev 4 27/48

Hardware setting of the STEVAL-IHM023V2 UM0723

Table 6 below shows the jumper settings for three-shunt based FOC of any high-voltage

PMSM, BLDC, or AC IM motor. Please confirm that the demonstration board input voltage is in the range of 125 VDC to 400 VDC or 90 VAC to 285 VAC. If the voltage doubler is applied, the input voltage must be in the range of 65 VAC to 145 VAC.

Table 6.

Jumper

Jumper settings for FOC of HV PMSM, BLDC, or AC IM in three-shunt configuration for current reading

Jumper settings for FOC of HV PMSM, BLDC or AC IM in three-shunt configuration for current reading

W1

W3

W4

W5

W6

W7

W9

W10

W11

W13

W14

W16

“3.3 V” position

“HIGH VOLTAGE” position

Present for Hall sensor or encoder

Not present for connected tachometer

“R_BRAKE” position for software handling of resistive brake (if any)

“OCP OFF” position for software handling of overcurrent protection disabling

Present for supplying control stage from IHM023v2 connector with V

DD

(max. 50 mA)

Present for connected tachometer

Not present for connected Hall sensor or encoder

Three-shunt

Present

Silk screen marked position

Three-shunt

Not present

Silk screen marked position for supplying Hall/encoder with V

DD

Not marked position for supplying Hall/encoder with +5 V

Table 7 shows jumper settings for three-shunt based FOC of any low-voltage PMSM or

BLDC. Please confirm that the input voltage of the demonstration board in this case is in the range of 18 VDC to 35 VDC. If it is necessary to supply the motor with a voltage lower than

18 VDC, please remove the W3 jumper and connect the auxiliary voltage to the J3 connector.

In this configuration it may be necessary to modify R2, R4, and R7 resistors according to the applied supply voltage.

28/48 Doc ID 15870 Rev 4

UM0723 Hardware setting of the STEVAL-IHM023V2

Table 7.

Jumper

Jumper settings for FOC of LV PMSM or BLDC in three-shunt configuration for current reading

Jumper settings for FOC of LV PMSM or BLDC in three-shunt configuration for current reading

W1

W3

W4

W5

W6

W7

W9

W10

W11

W13

W14

W16

“3.3 V” position

“<35 V ONLY” position

Present for Hall sensor or encoder

Not present for connected tachometer

“R_BRAKE” position for software handling of resistive brake (if any)

“OCP OFF” position for software handling of overcurrent protection disabling

Present for supplying control stage from IHM023v2 connector with V

DD mA)

(max. 50

Present for connected tachometer

Not present for connected Hall sensor or encoder

Three-shunt

Present

Silk screen marked position

Three-shunt

Not present

Silk screen marked position for supplying Hall/encoder with V

DD

Not marked position for supplying Hall/encoder with +5 V

Doc ID 15870 Rev 4 29/48

Description of jumpers, test pins, and connectors

5

UM0723

Description of jumpers, test pins, and connectors

The following tables give a detailed description of the jumpers, test pins, and the pinout of the connectors used.

Table 8.

Jumper

W1

W3

W4

W5

W6

W7

W9

W10

W11

W13

W14

W16

Jumpers description

Selection Description

“3.3 V” position V

DD

= 3.3 V

“5 V” position V

DD

= 5 V

“<35 V” ONLY Linear regulator supplied from DC bus - input supply voltage < 35 VDC

“HIGH VOLTAGE” Buck converter supplied from bus

Present Hall sensor or encoder connected

Not present

“R_BRAKE”

“OCP OFF”

Present

Not present

Present

Tachometer connected

Software brake feature applied

OCP disabled

Supplying of MCU control board through J5 motor connector with V

DD

Separated voltage of MCU control board

Tachometer connected

Not present

Single-shunt

Three-shunt

Hall sensor or encoder connected

Any single-shunt configuration

Any three-shunt configuration

Present

Not present

Gain for any FOC

Gain for six-step control

Dash position Gain for any FOC

Free position

Single-shunt

Three-shunt

Gain for six-step control

Any single-shunt configuration

Any three-shunt configuration

Present

Not present

Voltage doubler applied (V

IN

= max. 145 VAC)

Standard single-phase range

Dash position Hall/encoder supplied by V

DD

Free position Hall/encoder supplied by +5 V

30/48 Doc ID 15870 Rev 4

UM0723 Description of jumpers, test pins, and connectors

Table 9.

Name

J1

J2

J3

J4

J5

Connector pinout description

Reference

Supply connector

1 - PE-earth

2 - PE-earth

3 - L-phase

4 - N-neutral

Motor connector

A - Phase A

B - Phase B

C - Phase C

Description / pinout

15 V auxiliary supply connector

1 - GND

2 - +15 VDC

Hall sensors/ encoder input connector

1 - GND

1 - +V

DD

/+5 V

1 - Hall sensor input 1/ encoder A+

1 - Hall sensor input 2/ encoder B+

1 - Hall sensor input 3/ encoder Z+

Motor control connector

1 - Emergency stop

3 - PWM-1H

5 - PWM-1L

7 - PWM-2H

2 - GND

4 - GND

6 - GND

8 - GND

9 - PWM-2L

11 - PWM-3H

13 - PWM-3L

15 - Current phase A

17 - Current phase B

19 - Current phase C

21 - NTC bypass relay

23 - Dissipative brake PWM

25 - +V power

27 - PFC sync.

29 - PWM V

REF

31 - Measure phase A

33 - Measure phase B

10 - GND

12 - GND

14 - HV bus voltage

16 - GND

18 - GND

20 - GND

22 - GND

24 - GND

26 - heatsink temperature

28 - Vdd_m

30 - GND

32 - GND

34 - measure phase C

Doc ID 15870 Rev 4 31/48

Description of jumpers, test pins, and connectors UM0723

Table 9.

Name

J6

Connector pinout description (continued)

Reference Description / pinout

Dissipative brake

1 - Bus voltage

2 - Open collector

J7

J8

BEMF daughterboard connector

1 - Phase A

2 - Phase B

3 - Phase C

4 - Bus voltage

5 - 3.3 VDC

6 - V

DD

_micro

7 - GND

8 - PWM V

REF

Tachometer input connector for AC motor speed loop control

1 - Tachometer bias

2 - Tachometer input

32/48

TP6

TP7

TP8

TP9

TP10

TP11

TP1

TP2

TP3

TP4

TP5

TP23

TP13

TP14

TP15

TP16

TP17

Table 10.

Testing pins description

Number Description

Output phase A

Output phase B

Output phase C

PWM - phase A - low-side

PWM - phase A - high-side

PWM - phase B - low-side

PWM - phase B - high-side

PWM - phase C - low-side

PWM - phase C - high-side

Current sensed in phase A

Current sensed in phase B

Current sensed in phase C

Sensed tachometer/encoder/Hall signal A

Sensed encoder/Hall signal B

Sensed encoder/Hall signal Z

Voltage on bus divider - bus voltage information

Brake status - brake active in low state

Doc ID 15870 Rev 4

UM0723 Connector placement

Table 10.

Testing pins description (continued)

Number

TP18

TP19

TP20

TP21

TP24

Description

3.3 VDC

15 VDC

Reference voltage 2.5 V for overtemperature protection

GND

5 VDC

A basic description of the placement of all connectors on the board is visible in Figure 15 .

Figure 15.

STEVAL-IHM023V2 connectors placement

Doc ID 15870 Rev 4 33/48

Bill of material UM0723

1

1

1

1

1

9

6

6

4

3

3

1

3

3

1

1

1

1

1

3

3

1

1

A list of components used to build the demonstration board is shown in Table 11 . The

majority of the active components used are available from STMicroelectronics.

Table 11.

Bill of material

Quantity

Reference

Value / generic part number

Package / class Manufacturer

2 C1, C5 2.2 nF/Y1 Y1 safety CAP - 4.7 nF

Murata Manufacturing

Co., Ltd.

2 C2, C3

Elyt. capacitor, RM 10 mm,

30 x 45, 105 °C

Panasonic

C13

C14

C15

C16

C19

C66, C67, C71, C72,

C73, C26, C24, C27,

C28, C6, C7, C17,

C18, C10, C11

C69, C70, C74

C25

C29

C30

C31, C42, C53

C32, C33, C43, C44,

C54, C55

C34, C35, C45, C46,

C58, C59

C52

C65

C56

C57

C36, C47, C60, C75

C37, C48, C61

C39, C50, C62

C4

C40, C49, C63

C41, C51, C64

1200

μ

F/250 V

N.C.

220 nF/25 V

3.3

μ

F/450 V

1

μ

F/50 V

100

μ

F/25 V

100 nF/25 V

10 pF/25 V

4.7

μ

F/25 V

2.2 nF/25 V

4.7 nF/25 V

330 pF/25 V

1

μ

F/50 V

10 pF/25 V

1 nF/25 V

470 nF/25 V

100 pF/25 V

150 nF/X2

2.2 nF/25 V

33 pF/25 V

330 pF/25 V

100 pF/25 V

100 nF/25 V

470 pF/25 V

Capacitor, SMD 0805

Elyt. capacitor, SMD 4 x 4

Elyt. capacitor, SMD 8 x 8

Capacitor, SMD 0805

Capacitor, SMD 0805

Elyt. capacitor, SMD 4 x 4

Capacitor, SMD 0805

Capacitor, SMD 0805

Capacitor, SMD 0805

Capacitor, SMD 1206; 50 V

Capacitor, SMD 0805

Panasonic

Panasonic

Panasonic

Panasonic

Capacitor, SMD 0805

Capacitor, SMD 0805

Capacitor, SMD 0805

Foil X2 capacitor, RM 22.5 mm Arcotronics

Capacitor, SMD 0805

Capacitor, SMD 0805

Capacitor, SMD 0805

Capacitor, SMD 0805

Capacitor, SMD 0805

Capacitor, SMD 0805

34/48 Doc ID 15870 Rev 4

UM0723

Table 11.

Bill of material (continued)

Quantity

Reference

Value / generic part number

1

2

2

C12

C8, C68

C9, C38

47 nF/25 V

22

μ

F/6.3 V

10 nF/25 V

Package / class

Capacitor, SMD 0805

Elyt. capacitor, SMD 4 x 4

Capacitor, SMD 0805

1

1

1

1

4

1

3

9

1

2

4

3

6

1

1

1

1

4

4

1

1

1

3

6

4

3

3

1

RT1

VR1

R1, R3, R6

R10

R11, R14, R120, R121

R12

R13

R112, R113, R114,

R115, R116, R117,

R109, R110, R111

R18

R19, R108

R2, R4, R23, R24

R21, R107, R106

R22, R27, R20, R33,

R74, R17

R25

R32

R26

R28, R122, R123

R29

R30

R31

R34

R35, R36, R57, R82

R37, R41, R58, R62

R38, R59, R85, R40,

R61, R87

R39, R45, R60, R65

R42, R63, R89

R43, R64, R90

R44

6.8 k

Ω

N.C.

470 k

Ω

220

Ω

10 k

Ω

560

Ω

9.1 k

Ω

1 k

Ω

2.2 k

Ω

100

Ω

15 k

Ω

27 k

Ω

12 k

Ω

100 k

Ω

10

Ω

1 k

Ω

120

Ω

3.3 k

Ω

47 k

Ω

3.6 k

Ω

10 k

Ω

10

Ω

100 k

Ω

13 k

Ω

5.6 k

Ω

N.C.

160

Ω

4.7 k

Ω

NTC

NTC

Resistor, SMD 1206

Resistor, SMD 0805, 1%

Resistor, SMD 0805

Resistor, SMD 1206

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 1206, 1%

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 0805, 1%

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Doc ID 15870 Rev 4

Bill of material

Manufacturer

Panasonic

EPCOS

B57703M103G40

EPCOS B57364S100M

35/48

Bill of material UM0723

6

6

1

1

2

1

1

1

1

2

5

1

1

1

1

1

Table 11.

Bill of material (continued)

Quantity

3

3

3

3

1

2

3

Reference

R46, R66, R92

R49

R5, R9

R52, R97, R78

R54, R76, R100

R55, R71, R101

R56, R68, R102

Value / generic part number

3.3 k

Ω

N.C.

120

Ω

3.3 k

Ω

820

Ω

0.15

Ω

N.C.

Package / class

Resistor, SMD 0805, 1%

Resistor, SMD 0805

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Resistor, SMD 2512, 1%, 2 W

1

1

7

8

2

1

1

R67, R70, R75, R79,

R50, R53

R69

R7

R72, R48, R47, R77,

R51, R98

R73

R8

R80

R81

R83, R88

R104

R84

R86, R91

R93, R95, R99, R94,

R103

R96

R105

L1

L2

D1

D11, D12, D15, D16,

D19, D20, D2, D23,

D24

D13, D5, D14, D17,

D18, D21, D22, D10

D25, D29

D3

D4

1 k

Ω

680

Ω

7.5

Ω

1 k

Ω

N.C.

51 k

Ω

2.2 k

Ω

33

Ω

10

Ω

68 k

Ω

2.2 k

Ω

120

Ω

1 k

Ω

N.C.

220 k

Ω

47

μ

H

2.2 mH

KBU6K

BAT48

1N4148

BZX84B13V

STPS1150

SM6T36

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 0805

Resistor, SMD 0805, 1%

Resistor, SMD 0805, 1%

SMD choke, 0.5 A

SMD choke, 0.25 A

Diode bridge, 250 VAC, 8 A

Diode, SMD, SOD-323

Universal diode, SMD, SOD80C

Zener diode, SOT23, 13 V

Schottky diode, DO-241AC

(SMA)

Transil™, JEDEC DO-214AA

Manufacturer

Panasonic

Würth Elektronik

STMicroelectronics

STMicroelectronics

STMicroelectronics

36/48 Doc ID 15870 Rev 4

UM0723 Bill of material

1

1

1

1

2

Table 11.

Bill of material (continued)

Quantity

Reference

Value / generic part number

1

1

1

3

2

1

1

1

1

1

10

7

1

1

1

3

18

1

1

1

1

Package / class Manufacturer

D6, D8

D7

D9

D27

D28

D26

STTH1L06

LED GREEN

STTH2L06

HV diode, SMA

Universal LED 3 mm, 2 mA

BZV55C18SMD Zener diode, SOD80, 18 V

LED YELLOW Universal LED 3 mm, 2 mA

LED RED Universal LED 3 mm, 2 mA

HV diode, SMA

Q1, Q4, Q5, Q12, Q13,

Q14, Q15, Q16, Q17,

Q18

BC847 NPN transistor, SOT23

Q10, Q11, Q3, Q6, Q7,

Q8, Q9

STGP10NC60KD N-channel IGBT, TO220

Q2 BC857B PNP transistor, SOT23

F1

F1

LS1

U1

U2

U3

U4, U8

U5, U6, U7

U9

U10

U11

TP1, TP2, TP3

TP4 - TP24

J1

J2

STMicroelectronics

STMicroelectronics

STMicroelectronics

Holder

6.25 A

Fuse holder 5 x 20 mm, KS21

SW

Fuse 6.25 A Slov., FST06.3,

5 x 20 mm

SCHURTER

Finder 4031-12 Relay 12 VDC

LD1117S33 Linear regulator 3.3 V, SOT223

Finder

STMicroelectronics

L7815

VIPer16

TS391

Linear regulator 15 V, TO-220

Smart PWM driver, SO-16

Voltage comparator, SOT23-5

STMicroelectronics

STMicroelectronics

STMicroelectronics

L6390

TS3431

L78M05C

M74HC14

N.C.

PCB terminal

1 mm

HV low and high-side driver,

SO-16

Voltage reference, SOT23-3L

Linear regulator 5 V, DPAK

Hex Schmitt inverter SOP

Test pin

STMicroelectronics

STMicroelectronics

STMicroelectronics

STMicroelectronics

Connector 4P

Connector 4P

Connector 3P

Connector 3P

Connector RM 5 mm, 4-pole male horizontal

Connector RM 5 mm, 4-pole female parallel

Connector RM 5 mm, 3-pole male horizontal

Connector RM 5 mm, 3-pole female parallel

PHOENIX CONTACT

PHOENIX CONTACT

PHOENIX CONTACT

PHOENIX CONTACT

Doc ID 15870 Rev 4 37/48

Bill of material UM0723

Table 11.

Bill of material (continued)

Quantity

Reference

Value / generic part number

1

1

1

1

1

1

1

3

1

3

1

1

1

1

1

1

1

3

1

1

1

1

7

J3

J4

J5

J6

J7

J8

W1

W10

W11

W13

W3

W4

W5

W6

W7

W9

W14

W16

150 mm Het 1

Het 2

Package / class Manufacturer

Con. 5 mm, 2P

Connector RM 5 mm, 2-pole, screw

Connector 5P Autocom HE14 5-pin

MLW34G

Con. 5 mm, 2P

MLW connector 34-pin

Connector RM 5 mm, 2-pole, screw

Con. 2.54 mm

12-pin

Pins RM 2.54 mm female, 12-pin

PHOENIX CONTACT

Stelvio Kontek

Tyco Electronics

PHOENIX CONTACT

Con. 5 mm, 2P

Jumper 2.54

Jumper 2.54

Jumper 2.54

Connector RM 5 mm, 2-pole, screw

Three pins of break way + jumper in position 3.3 V

Two pins of break way + jumper

Three pins of break way + jumper in position 3.3 V

PHOENIX CONTACT

Mounting hole

Three way HV selector, default three-shunt position

Insulated jumper blue

HV insulated jumper, 5.08 mm, default three-shunt position

Mounting hole Three way HV selector

Insulated jumper blue

HV insulated jumper, 5.08 mm, default “HIGH VOLTAGE” position

Jumper 2.54

Two pins of break way + jumper

Jumper 2.54

Jumper 2.54

Jumper 2.54

Mounting hole

Three pins of break way + jumper in position R_BRAKE

Two pins of break way

Two pins of break way

Three way HV selector, default three-shunt position

Insulated jumper blue

HV insulated jumper, 5.08 mm, default three-shunt position

Wire jumper Not assembled

Jumper 2.54

Heatsink

Heatsink

Clip for het

Three pins of break way + jumper in position 1

150 mm of AL profile 8693

Heatsink for TO-220 with montage pin

Montage clip PADA 7704,

TO-220, 10 mm

PADA Engineering

PADA Engineering

PADA Engineering

38/48 Doc ID 15870 Rev 4

UM0723

Table 11.

Bill of material (continued)

Quantity

Reference

Value / generic part number

1

130 mm

Package / class

Clip for het

Isolation tape

Montage clip PADA 7703,

TO-220, 15 mm

Isolation tape, 24 mm wide; approx. 130 mm long, self adhesive

Bill of material

Manufacturer

PADA Engineering

Doc ID 15870 Rev 4 39/48

PCB layout UM0723

For this application a standard, double-layer, coppered PCB with a ~60

μ m copper thickness was selected. The PCB material is FR-4.

The dimensions of the board are:

Width: 127 mm

PCB thickness: 1.55 mm

40/48 Doc ID 15870 Rev 4

UM0723

Figure 16.

Silk screen - top side

PCB layout

Doc ID 15870 Rev 4 41/48

PCB layout

Figure 17.

Silk screen - bottom side

UM0723

42/48 Doc ID 15870 Rev 4

UM0723

Figure 18.

Copper tracks - top side

PCB layout

Figure 19.

Copper tracks - bottom side

Doc ID 15870 Rev 4 43/48

Ordering information UM0723

The demonstration board is orderable through the standard ordering system, the ordering code is: STEVAL-IHM023V2. The items delivered include the assembled demonstration board, board documentation, PCB fabrication data such as gerber files, assembly files (pick and place), and component documentation.

10 Using STEVAL-IHM023V2 with STM32 PMSM FOC firmware library v3.0

The “STM32 PMSM FOC firmware library v3.0” is part of the STM32 PMSM single/dual

FOC SDK v3.0. In particular, it is a firmware library running on any STM32F103x and

STM32F100x device which implements the “Field Oriented Control” (FOC) drive of threephase “Permanent Magnet Synchronous Motors” (PMSM), both “Surface Mounted” (SM-

PMSM) and “Internal” (I-PMSM).

This section describes how to customize the firmware library by making use of the PC tool

“ST MC Workbench” (STMCWB) downloadable from www.st.com.

Note:

44/48

Warning: The STEVAL-IHM023V2 demonstration board must only be used in a power laboratory. The voltage used in the drive system presents a shock hazard.

The kit is not electrically isolated from the DC input. This topology is very common in motor drives. The microprocessor is grounded by the integrated ground of the DC bus. The microprocessor and associated circuitry are hot and MUST be isolated from user controls and communication interfaces.

Warning: All measuring equipment must be isolated from the main power supply before powering up the motor drive. To use an oscilloscope with the kit, it is safer to isolate the DC supply

AND the oscilloscope. This prevents a shock occurring as a result of touching any SINGLE point in the circuit, but does

NOT prevent shocks when touching two or more points in the circuit.

An isolated AC power supply can be constructed using an isolation transformer and a variable transformer.

Isolating the application rather than the oscilloscope is highly recommended in any case.

Doc ID 15870 Rev 4

UM0723 Using STEVAL-IHM023V2 with STM32 PMSM FOC firmware library v3.0

●

●

●

●

The following items are required to run the STEVAL-IHM023V2 together with the “STM32

PMSM FOC firmware library v3.0”.

● Any microcontroller demonstration board with MC connector such as: STEVAL-

IHM022V1, STEVAL-IHM033V1, STM3210B-EVAL, STM3210E-EVAL, or

STM32100B-EVAL

A high-voltage insulated AC power supply up to 230 VAC

A programmer/debugger dongle for control board (not included in the package). Refer to the control board user manual to find a supported dongle. Use of an insulated dongle is always recommended.

● Three-phase brushless motor with permanent magnet rotor (not included in the package)

An insulated oscilloscope (as necessary)

An insulated multimeter (as necessary)

To customize, compile, and download the “STM32 FOC firmware library v3.0”, a toolchain must be installed.

10.4 STM32 FOC firmware library v3.0 customization

The ST motor control workbench can be used to customize the STM32 FOC firmware library v.3.0.

The required parameters for the power stage related to the STEVAL-IHM023V2 are reported in

Table 12

.

Table 12.

STEVAL-IHM023V2 motor control workbench parameters

Variable Value

Rated bus voltage information

Min. rated voltage (V)

Max. rated voltage (V)

Nominal voltage (V)

Bus voltage sensing

Bus voltage divider 1/...

Dissipative brake

18 or 60 according to W3 position (respectively for “<35 V” and “HIGH VOLTAGE” positions)

32 or 450 according to W3 position (respectively for “ <35 V ” and “ HIGH VOLTAGE ” positions)

Depends on W3 position and application nominal bus voltage

Available

136

Available if W5 is set to R_BRAKE position, not available otherwise

Active high Polarity

Driving signals

Doc ID 15870 Rev 4 45/48

Using STEVAL-IHM023V2 with STM32 PMSM FOC firmware library v3.0

UM0723

Table 12.

STEVAL-IHM023V2 motor control workbench parameters (continued)

Variable Value

Phases U, V, W high-side polarity

Phases U, V, W low-side polarity

Temperature sensing

Active high

Active low

Available

V0 (mV)

T0 (°C)

Δ

V/

Δ

T (mV/°C)

Max. working temperature on sensor (°C)

Overcurrent protection

Comparator threshold (V)

Overcurrent network gain (V/A)

Expected overcurrent threshold (A)

Overcurrent feedback signal polarity

Overcurrent protection disabling network

875

25

28

70

Available

0.5

0.075

6.25

Active low

Available if W5 is set to OCP OFF position, not available otherwise

Active low Overcurrent protection disabling network polarity

Current sensing

Current reading topology

Shunt resistor(s) value (

Ω

)

Amplifying network gain

T-noise (ns)

T-rise (ns)

Power switches

Min. deadtime (ns)

Max. switching frequency (kHz)

Configurable

0.15

1.7

2000

2000

800

50

46/48 Doc ID 15870 Rev 4

UM0723

11 Conclusion

Conclusion

This document describes the 1 kW three-phase motor control STEVAL-IHM023V2 demonstration board as a universal fully evaluated and adaptable motor control platform.

12 References

1.

L6390 datasheet

4. UM0379 user manual

5. UM0580 user manual

Table 13.

Document revision history

Date Revision

07-Sep-2009

27-Nov-2009

03-May-2011

28-Jun-2011

1

2

3

4

Changes

Initial release.

Changed part number STGF7NC60HD to STGP10NC60KD in

Figure 10 , updated input voltage in

Section 4.2

, step 3 in

Section 10.4

, replaced STEVAL-IHM023V1 by STEVAL-IHM021V1 in point 5 of

Section 12

.

Replaced STEVAL- IHM023V1 by STEVAL-IHM023V2, updated

Section 1

,

Figure 1

,

Section 2.1

,

Section 3.1

,

Figure 3 to

Figure 8

,

Section 3.3

,

Section 4

to

Section 12 , minor text and graphic

modifications throughout the document.

Updated

Table 12

, corrected typo in Figure 7

and

Figure 8 .

Doc ID 15870 Rev 4 47/48

UM0723

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48/48 Doc ID 15870 Rev 4