3-phase high voltage inverter power board for foc …...the power block, based on the high voltage...
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June 2014 DocID025649 Rev 1 1/35
UM1703User manual
3-phase high voltage inverter power board for FOC based onSTGIPN3H60A (SLLIMM™-nano)
IntroductionThe 3-phase high voltage inverter power board features the STGIPN3H60A (SLLIMM™-nano) for field-oriented control (FOC) of permanent magnet synchronous motors (PMSM). It is also referred to by the order code STEVAL-IHM045V1.
This 3-phase inverter is designed to perform the FOC of sinusoidal-shaped back-EMF PMSMs with or without sensors, with nominal power up to 100 W. The flexible, open and high-performance design consists of a 3-phase inverter bridge based on:
• The STGIPN3H60A SLLIMM™-nano (small low-loss intelligent molded module) IPM, 3-phase IGBT inverter - 3 A - 600 V very fast IGBT
• The VIPer06 fixed frequency VIPer™ plus family
The system is specifically designed to achieve fast and accurate conditioning of the current feedback, thereby matching the requirements typical of high-end applications such as field oriented motor control.
The board is compatible with 110 and 230 VAC mains, and includes a power supply stage with the VIPer06 to generate the +15 V and the +3.3 V supply voltage required by the application. Finally, the board can be interfaced with the STM3210B-EVAL, STM32100B-EVAL, STM3210E-EVAL, STM320518-EVAL, STM3220G-EVAL, STM32303C-EVAL, STM3240G-EVAL (STM32 microcontroller evaluation board), STEVAL-IHM022V1 (high density dual motor control demonstration board based on the STM32F103ZE microcontroller), STEVAL-IHM039V1 (dual motor drive control stage based on the STM32F415ZG microcontroller) and with the STEVAL-IHM033V1 (control stage based on the STM32F100CB microcontroller suitable for motor control), through a dedicated connector.
Figure 1. STEVAL-IHM045V1 evaluation board
www.st.com
Contents UM1703
2/35 DocID025649 Rev 1
Contents
1 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Target applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Safety and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Intended use of the evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Installing the evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Electronic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5 Operating the evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 STGIPN3H60A characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 VIPer06L characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 TSV994 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
7 TS374 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.1 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 Electrical characteristics of the board . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 Board architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9.2 Hardware overcurrent detecting network . . . . . . . . . . . . . . . . . . . . . . . . . 14
9.3 Amplifying network for current measurement . . . . . . . . . . . . . . . . . . . . . . 15
9.4 Temperature feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DocID025649 Rev 1 3/35
UM1703 Contents
35
9.5 Hall sensor/quadrature encoder inputs . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10 STEVAL-IHM045V1 schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . 16
10.1 Overcurrent detecting network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10.2 Direct motor currents sampling from shunt resistors . . . . . . . . . . . . . . . . 20
10.3 Current sensing amplification network using external operational amplifiers 22
10.4 Jumpers configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10.4.1 Microcontroller supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10.4.2 Current sensing network topology settings . . . . . . . . . . . . . . . . . . . . . . 24
10.4.3 Power supply configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
10.5 Motor control connector J1 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
11 Using the STEVAL-IHM045V1 with the STM32 FOC firmware library . 26
11.1 Environmental considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
11.2 Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.3 Software requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.4 STM32 FOC firmware library customization . . . . . . . . . . . . . . . . . . . . . . . 27
12 Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
13 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
14 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
List of figures UM1703
4/35 DocID025649 Rev 1
List of figures
Figure 1. STEVAL-IHM045V1 evaluation board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 2. Motor control system architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Figure 3. STGIPN3H60A block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 4. VIPer06L block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 5. STEVAL-IHM045V1 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Figure 6. Current sensing and overcurrent detection networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Figure 7. Sensor inputs, motor control connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Figure 8. Inverter schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Figure 9. Power supply schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Figure 10. Current sensing network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Figure 11. Changing current sensing network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Figure 12. Current sensing amplifying network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Figure 13. Motor control connector J1 (top view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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UM1703 Main features
35
1 Main features
The STEVAL-IHM045V1 inverter power stage board has the following characteristics:
• Compact size
• Wide-range input voltage (30-270 VAC) maximum power up to 100 W at 230 VAC input
• The STGIPN3H60A SLLIMM™-nano (small low-loss intelligent molded module) IPM, 3-phase IGBT inverter - 3 A - 600 V very fast IGBT
• The VIPer06 fixed frequency VIPer™ plus family
• DC bus voltage power supply connectors
• External 15 V input
• Connector for interfacing with the STM3210B-EVAL, STM32100B-EVAL, STM3210E-EVAL, STM320518-EVAL, STM3220G-EVAL, STM32303C-EVAL, STM3240G-EVAL, STEVAL-IHM022V1, STEVAL-IHM039V1 and STEVAL-IHM033V1
• Efficient DC-DC power supply (15 V, 3.3 V)
• Suitable for sinusoidal FOC drive
• Easy selectable single or three shunt current reading topology with fast operational amplifier (with offset insertion for bipolar currents)
• Configurable for direct motor current sampling from shunt resistors (exploiting the topologies of current measurement with operational amplifiers embedded in the microcontroller)
• Hardware overcurrent detecting network
• Temperature sensor
• Hall sensor/quadrature encoder inputs.
1.1 Target applications• High efficiency drain pumps for domestic white goods like dishwashers and washing
machines
• Compressor drives for refrigerators
• Ceiling fans
• Inverters for high efficiency circulating water pumps in heating systems for single-family homes
• High efficiency and reliable solutions for small power transfer pumps for waste sludge –sewage systems in single-family homes, waste piping
• High efficiency transfer pumps for outlet condensation water
• High efficiency extractor hoods and blowers for gas furnace applications
System architecture UM1703
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2 System architecture
A generic motor control system can be represented as the arrangement of four main blocks (Figure 2).
• Control block: its main tasks are to accept user commands and motor drive configuration parameters, and to provide digital signals to implement the appropriate motor driving strategy
• Power block: performs the power conversion from the DC bus, transferring it to the motor by means of a 3-phase inverter topology
• The motor: the STEVAL-IHM045V1 board can drive both PMSM and BLDC motors in FOC
• Power supply block: can accept input voltages of 30 to 270 VAC and provides the appropriate supply levels for both the control block and power block devices.
Figure 2. Motor control system architecture
With respect to the above motor control system architecture, the STEVAL-IHM045V1 incorporates the power supply and power hardware blocks.
The power block, based on the high voltage STGIPN3H60A (SLLIMM™-nano), converts the signals coming from the control block into power signals capable of correctly driving the 3-phase inverter, and therefore the motor.
The power supply can be fed with 110 or 230 VAC mains with a maximum allowed input power of 100 W at 230 VAC (refer to Section 8).
In the control block, an MC connector is mounted on the STEVAL-IHM045V1 and the STM3210B-EVAL, STM32100B-EVAL, STM3210E-EVAL, STM320518-EVAL, STM3220G-EVAL, STM32303C-EVAL, STM3240G-EVAL, STEVAL-IHM022V1, STEVAL-IHM039V1 and STEVAL-IHM033V1, which allows the STM32 microcontroller evaluation board to be used as a hardware platform for development.
The “STM32 FOC firmware library” is ready to be used in conjunction with the STM32 MC workbench as a software platform for the sensorless control of PMSMs (see Section 11).
The required STM32 motor control workbench data is reported in Table 5.
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UM1703 Safety and operating instructions
35
3 Safety and operating instructions
3.1 General
Warning: During assembly and operation, the STEVAL-IHM045V1 evaluation board poses several inherent hazards, including bare wires, moving or rotating parts and hot surfaces. Serious personal injury and damage to property may occur if the kit or its components are used or installed incorrectly.
All operations involving transportation, installation and use, as well as maintenance, should be performed by skilled technical personnel (applicable national accident prevention rules must be observed). The term “skilled technical personnel” refers to suitably-qualified people who are familiar with the installation, use and maintenance of electronic power systems.
3.2 Intended use of the evaluation boardThe STEVAL-IHM045V1 evaluation board is designed for demonstration purposes only and must not be used for electrical installations or machinery. Technical data and information concerning the power supply conditions are detailed in the documentation and should be strictly observed.
3.3 Installing the evaluation boardThe installation and cooling of the evaluation board must be in accordance with the specifications and target application.
• The motor drive converters must be protected against excessive strain. In particular, components should not be bent or isolating distances altered during transportation or handling.
• No contact must be made with other electronic components and contacts.
• The board contains electrostatically-sensitive components that are prone to damage if used incorrectly. Do not mechanically damage or destroy the electrical components (potential health risk).
3.4 Electronic connectionsApplicable 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 (for example, cross-sectional areas of conductors, fusing, PE connections, etc.).
Safety and operating instructions UM1703
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3.5 Operating the evaluation boardThe system architecture that supplies power to the STEVAL-IHM045V1 evaluation board must be equipped with additional control and protective devices in accordance with the applicable safety requirements (i.e., compliance with technical equipment and accident prevention rules).
Warning: Do not touch the evaluation board after it has been disconnected from the voltage supply as several parts and power terminals containing possibly-energized capacitors need time to discharge.
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UM1703 STGIPN3H60A characteristics
35
4 STGIPN3H60A characteristics
4.1 Main features• IPM 3 A, 600 V, 3-phase IGBT inverter bridge including control ICs for gate driving and
freewheeling diodes
• Optimized for low electromagnetic interference
• VCE(sat) negative temperature coefficient
• 3.3 V, 5 V, 15 V CMOS/TTL inputs comparators with hysteresis and pull down resistors
• Undervoltage lockout
• Internal bootstrap diode
• Interlocking function
• Optimized pinout for easy board layout
4.2 Block diagramFigure 3 shows the block diagram of the STGIPN3H60A device.
Figure 3. STGIPN3H60A block diagram
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VIPer06L characteristics UM1703
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5 VIPer06L characteristics
5.1 Main features• 800 V avalanche rugged power section
• PWM operation with frequency jittering for low EMI
• Operating frequency 60 kHz
• No need of auxiliary winding in low power application
• Standby power < 30 mW at 265 VAC
• Limiting current with adjustable set point
• On-board soft-start
• Safe auto-restart after a fault condition
• Hysteretic thermal shutdown
5.2 Block diagramFigure 4 shows the block diagram of the VIPer06L device.
Figure 4. VIPer06L block diagram
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UM1703 TSV994 characteristics
35
6 TSV994 characteristics
6.1 Main features• Low input offset voltage: 1.5 mV max
• Rail-to-rail input and output
• Wide bandwidth 20 MHz, stable for gain > 3
• Low power consumption: 1.1 mA maximum
• High output current: 35 mA
• Operating from 2.5 V to 5.5 V
• Low input bias current, 1 pA typ
• ESD internal protection > 5 kV
• Latch-up immunity
TS374 characteristics UM1703
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7 TS374 characteristics
7.1 Main features• Wide single supply range or dual supplies 3 V to 16 V or ±1.5 V to ±8 V
• Very low supply current: 0.1 mA/COMP independent of supply voltage
• Extremely low input bias current: 1 pA typical
• Extremely low input offset currents: 1 pA typical
• Low input offset voltage
• Input common-mode voltage range includes GND
• Low output saturation voltage: 150 mV typical
• Output compatible with TTL, MOS and CMOS
• High input impedance: 1012 Ω typical
• Fast response time: 200 ns typical for TTL level input step
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UM1703 Electrical characteristics of the board
35
8 Electrical characteristics of the board
The board is designed to be supplied by an alternate current power supply through connector J7 (AC mains) or by a direct current power supply through connector J8 (DC bus). When a DC bus is applied, the correct polarity must be respected.
Stresses above the limits shown in Table 1 may cause permanent damage to the devices present on the board. These are stress ratings only and functional operation of the device under these conditions is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.
A bias current measurement may be useful to check the working status of the board. If the measured value is considerably higher than the typical value, some damage has occurred to the board. Supply the board using a 40 V power supply connected to J8, respecting the polarity. When the board is properly supplied, LED D16 turns on and the typical bias current is 7 mA.
Table 1. Board electrical characteristics
Board parametersSTEVAL-IHM045V1
UnitMin Max
AC Mains – J7 30 270 Vrms
DC Bus – J8 40 400 V
Board architecture UM1703
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9 Board architecture
The STEVAL-IHM045V1 can be schematized as shown in Figure 5.
Figure 5. STEVAL-IHM045V1 block diagram
9.1 Power supplyThe power supply can address an AC input voltage (J7) ranging from 30 VAC to 270 VAC.
The alternating current input is rectified by a diode bridge and a bulk capacitor to generate a direct current bus voltage approximately equal to √2 VAC (neglecting the voltage drop across the diodes and the bus voltage ripple). A VIPer06 is then used in a non-insulated flyback topology to generate the +15 V supply voltage required by the STGIPN3H60A and to supply the low drop voltage regulators (LD1117S33TR) to generate the 3.3 V used as the Vdd_Micro reference voltage. It is also possible to provide the microcontroller supply voltage to the control board via motor control connector J1 when R7 is mounted with a 0 ohm resistor (default setting).
9.2 Hardware overcurrent detecting networkThe hardware overcurrent detecting network is implemented using the TS374 Low power quad CMOS voltage comparator (U11).
The fault signal (low level) is fed back to the J1 connector if the overcurrent event is detected and connected to the emergency input of the microcontroller.
See Section 10.1 for more detailed information on hardware current detecting network.
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UM1703 Board architecture
35
9.3 Amplifying network for current measurementThe voltages across the shunt resistor are amplified by Aop amplification gains to correctly condition the current feedback signals and optimize the output voltage range for a given phase current range and A-D converter input dynamics. Refer to Section 10.3 for more detailed information on how to dimension the op-amp conditioning network depending on user needs.
To implement the current measurement network, the TSV994 rail-to-rail input/output high merit factor op-amps (U10) is used.
9.4 Temperature feedbackTemperature feedback is performed by way of an NTC placed below the package of the STGIPN3H60A. It enables the monitoring of the power stage temperature so as to prevent any damage to the inverter caused by overtemperature.
9.5 Hall sensor/quadrature encoder inputsThe board can be used to run the motor using the Hall sensors or quadrature encoder as position/speed feedback connecting the sensors signals to connector J2.
Note: Note: The Hall sensors or quadrature encoder sensor is not power supplied by STEVAL-IHM045V1.
The default configuration is intended for push-pull sensors. The R8, R11 and R12 resistors are used to limit the current injected into the microcontroller if the sensor high voltage is above Vdd-micro.
The maximum current injected should be less than the maximum present in the microcontroller datasheet.
If the sensors have open drain outputs and are supplied by 3.3 V it is possible to mount the three pull-up resistors R2, R3 and R4. Otherwise, if supplied with more than 3.3 V, the three pull-up resistor have to be mounted externally.
STEVAL-IHM045V1 schematic diagrams UM1703
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10 STEVAL-IHM045V1 schematic diagrams
Figure 6. Current sensing and overcurrent detection networks
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F10V
R94
5.6k
R75
4.7k
-+5 6
U10
BTS
V99
4IP
T
768
0
1kR
102
C31
-
680p
F 10
V
+12
U10
DTS
V99
4IP
T
1314
R10
8N
.M.
0R
104
R62
4.7k
-+U
11B
7
TS37
4CD
T6
1C
30
680p
F 10
V
C26
680p
F 10
V
C40
-
2.2n
F 10
V
+
U11
D
TS37
4CD
T
11 1013
R84
2.2k
R93
1k
R70
5.6k
R95
1k
C44
1uF1
0V
0
R10
5R
971k
R82
N.M
.
R10
6N
.M.
R74
N.M
.
R85
5.6k
R76
2.2k
R79
DocID025649 Rev 1 17/35
UM1703 STEVAL-IHM045V1 schematic diagrams
35
Figure 7. Sensor inputs, motor control connector
A+/H1
B+/H2
Z+/H3
Only for sensors
Pha
seW
_LP
hase
W_H
Pha
seU
_LP
hase
U_H
Pha
seV
_LP
hase
V_H
Em
erge
ncy
OC
Boo
st
Bus
Vol
t fee
dbac
k
Enc
Z/H
3
Tem
pera
ture
feed
back
Enc
A/H
1
Enc
B/H
2
Enc
A/H
1E
nc B
/H2
Enc
Z/H
3
Cur
r_fd
bk1
Cur
r_fd
bk2
Cur
r_fd
bk3
WC
urr_
fdbk
1_G
ND
WC
urr_
fdbk
2_G
ND
WC
urr_
fdbk
3_G
ND
Vdd
_Mic
ro
Vdd
_Mic
ro
Vdd
_Mic
ro
R4
N.M
.
R8
4.7k
R3
N.M
.
R11
4.7k
C1
10pF 10V
R12
4.7k
J2
1 2 3
Stri
plin
e m
. 1x3
0R
5R
6N
.M.
R2
N.M
.
J1
12
3
MO
TOR
_CO
NN
45
67
89
1011
1213
1415
1617 19 21 23 25
2627
2829
3031
3233
3418 20 22 24
C3
10pF 10V
C2
10pF 10V
R7
0
STEVAL-IHM045V1 schematic diagrams UM1703
18/35 DocID025649 Rev 1
Figure 8. Inverter schematic
MOTOR
Test points
3Sh
1Sh
3Sh
RS model C621/1206
Placed near the IGBT bridge
1Sh
RS model 434-740
GN
D
GN
D
Pha
se A
Pha
se B
Pha
se C
GN
D
GN
D
Tem
pera
ture
feed
back
Pha
se A
Pha
se B
Pha
se C
Pha
seW
_HP
hase
W_L
Pha
seU
_L
Pha
seV
_HP
hase
V_L
Pha
seU
_H
Pha
seW
_HP
hase
W_L
Pha
seU
_HP
hase
U_L
Pha
seV
_HP
hase
V_L
Em
erge
ncy
Tem
pera
ture
feed
back
Bus
Vol
t fee
dbac
k
Pha
se A
Pha
se B
NU
Pha
se C
NW
Vsh
unt_
2
Vsh
unt_
1V
shun
t_2
Vsh
unt_
3C
urr_
fdbk
1C
urr_
fdbk
2C
urr_
fdbk
3
Vsh
unt_
1_G
ND
Vsh
unt_
2_G
ND
WC
urr_
fdbk
1_G
ND
NU
Vsh
unt_
3_G
ND
WC
urr_
fdbk
2_G
ND
NW
WC
urr_
fdbk
3_G
ND
Vsh
unt_
1
Vsh
unt_
2
Vsh
unt_
3
Vsh
unt_
2
Vdd
_Mic
ro
Vbu
s
+15V
Vbu
s
+15V
Vdd
_Mic
ro
TP19
R46
0.47
C16
2.2u
F 25
V
NTC
1 NTC
10k
TP2
TP6
TP14
TP20
C15
2.2u
F 25
V
TP7
U2 G
ND
STG
IPN
3H60
A
2 1N
C_2
Vcc
W3
HIN
W
5 4LI
N W
NC
_66
NC
_7
8 7N
C_8
Vcc
V9
HIN
V
11 10LI
N V
12N
C_1
2
Vcc
U13
HIN
U
15 14N
C_1
5
LIN
U16
17
P
Vbo
ot U
18
U19
N U
20 21
V
Vbo
ot V
22
N V
23 24
W
Vbo
ot W
25
N W
26
J10
CO
N3
1 2 3
0R
55
C13
2.2u
F 25
V
TP21
J6CO
N3
1 2 3
C14
470n
F 25
V
R44
0.47
0R
56
TP3
TP22
TP17
0R
57
J9CO
N3
1 2 3
TP4
TP1
R45
0.47
TP18
C20
10nF
10V
R51
4.7k
TP5
TP13
DocID025649 Rev 1 19/35
UM1703 STEVAL-IHM045V1 schematic diagrams
35
Figure 9. Power supply schematic
GN
D
Bus
Vol
t fee
dbac
k
Vbu
s
Vbu
s+1
5V
+15V
Vbu
s
Vdd
_Mic
ro
D9
STT
H1R
04U
R53
470k
1/4
W
R11
3
15k
NTC
2
5ohm
12
+C
2110
0uF
450V
D10
STT
H1R
04U
D14
1N41
48W
T
J11
CO
N2
D12
STT
H1L
06A
+C
2822
uF25
V
D24
STP
S1L
60M
F
R11
0
15k
D8
STT
H1R
04U
J12
2 1
Ext
. 15V
U12
1G
ND
VIP
er06
LS
2V
DD
3LI
MFB45
CO
MP
6D
RA
IN_1
7D
RA
IN_2
8D
RA
IN_3
9D
RA
IN_4
10D
RA
IN_5
T2
123
456
F12
A
R11
122
k
C22
4.7n
F 10
V
+C
2347
uF25
V
+C
47
D16
GR
EE
N L
ED
SM
D
2.2u
F50
V
C46
1nF
630V
C49
22nF
6.3V
J82 1
DC
Bus
R54
8.2kR52
470k
1/4
W
R11
42.
2k1/
8W
+C
4210
uF6.
3V
C48
100n
F
50V
C50
1nF
6.3V
D23
STP
S11
50M
F
R10
922
0k
R11
52k
J7
2 1
AC
MA
INS
D7
STT
H1R
04U
R11
251
k
U3
2V
out
LD11
17S
33TR
1
GN
D
3V
in
STEVAL-IHM045V1 schematic diagrams UM1703
20/35 DocID025649 Rev 1
10.1 Overcurrent detecting networkHardware overcurrent detecting network is implemented on the board thanks to the TS374 Low power quad CMOS voltage comparator (U11). All three voltage drops across the shunt resistors are monitored to detect the overcurrent condition, three comparators of the TS374 product are used.
Overcurrent detection activates as soon as the voltage of any of the non-inverting input pins (4,6,8) rises above the reference approximately equal to 0.5 V, and, given the default value of the shunt resistors (0.47 Ω), it follows that the default value for the maximum allowed current (ICP) is:
Equation 1
If necessary, the overcurrent threshold can be modified by changing the value of shunt resistors R44, R45 and R46.
The outputs of the three comparators are combined together to generate a unique emergency signal that is fed to the microcontroller brake input through the J1 connector.
10.2 Direct motor currents sampling from shunt resistorsThe board is configured by default for direct motor current sensing from shunt resistors. Figure 10 shows the current sensing network relative to the motor phase A current. The configuration of the current sensing can be modified by acting on R55, R56, R57, R58, R69 and R79 as described in Table 2.
Table 2. Configuration of the current sensing
ResistorsDirect current sensing from shunt resistors
(default setting)Using external op-amp
R55, R56, R57 Mounted (0Ω) Not mounted
R58, R69, R79 Not mounted Mounted (0Ω)
DocID025649 Rev 1 21/35
UM1703 STEVAL-IHM045V1 schematic diagrams
35
Figure 10. Current sensing network
Figure 11 shows the layout of the board. The red sections highlight the position of the components that must be modified when the current sensing network needs to be changed.
Figure 11. Changing current sensing network
STEVAL-IHM045V1 schematic diagrams UM1703
22/35 DocID025649 Rev 1
10.3 Current sensing amplification network using external operational amplifiersThe board is configured by default for direct motor current sensing from shunt resistors. See Table 2 for configuring the board to use the external operational amplifier TSV994.
Figure 12 shows the current sensing amplifying network when using the external operational amplifier TSV994.
Figure 12. Current sensing amplifying network
The voltage at node “Curr_fdbk” can be computed as the sum of a bias and a signal component, respectively equal to:
Equation 2
Equation 3
With the default values, this gives:
• VBIAS=1.48V
• VSIGN=3.1•RShunt•I
• AOP=3.1
As such, the maximum current amplifiable without distortion is equal to:
Equation 4
U10TSV994IPT
Curr_fdbk
0
Vshunt
Vshunt_GND
680
4.7k
+3.3V
2.2k
5.6k
+
-
R60
R63
R62
R70
DocID025649 Rev 1 23/35
UM1703 STEVAL-IHM045V1 schematic diagrams
35
Equation 5
With the default values, this gives:
Equation 6
Equation 7
Equation 8
Equation 9
Note that the IMAX value can be modified by simply changing the values of the shunt resistors.
10.4 Jumpers configurationThis section provides jumper settings for configuring the STEVAL-IHM045V1 board.
Two types of jumpers are used on the STEVAL-IHM045V1 board:
• 3-pin jumpers with two possible positions, the allowable settings for which are presented in the following sections.
• 2-pin jumpers with two possible settings: fitted if the jumper is closed and not fitted if the jumper is open.
The STEVAL-IHM045V1 board can be also configured using a set of 0 Ω resistor. These resistors are used as 2-pin jumpers with two possible settings: mounted and not mounted.
10.4.1 Microcontroller supply voltage
The 3.3 V microcontroller supply voltage can be fed into J1 pin 28 through the R7 resistor. This configuration permits the control board to be supplied with 3.3 V using the J1 connector
STEVAL-IHM045V1 schematic diagrams UM1703
24/35 DocID025649 Rev 1
and is the default configuration. If the control board is self-supplied, it is possible to remove the R7 resistor to avoid conflict in the supply voltages.
10.4.2 Current sensing network topology settings
The current sensing network can be configured for three shunt current reading or for single shunt current reading. In both cases, the current sensing network topology supports bipolar current reading. This means that the current flows in the shunt resistor in both directions: to the ground and from the ground. This is the case of sinusoidal control and the current sensing network adds an offset value in order to measure the negative values.
To select the proper current sensing network topology, the J9 and J10 jumpers are used according to Table 3.
10.4.3 Power supply configuration
Jumper J11 can be used to enable or disable the power supply section based on VIPer06L. When J11 is fitted (default configuration), the power supply section is enabled and the +15 V is regulated by the on board VIPer06L when the DC bus voltage is present.
If the DC bus voltage required by the application exceeds the specifications stated in Table 1, it is possible to open the J11 jumper to exclude the power supply section based on VIPer06L and supply an external reference voltage of 15 V to connector J12. The maximum DC bus voltage applied in this case may still not exceed the maximum allowed voltage for STGIPN3H60A.
10.5 Motor control connector J1 pinout
Figure 13. Motor control connector J1 (top view)
Table 3. Jumpers settings for the current sensing network topology selection
Topology Jumper settings Jumper settings
Three shunt current readingJ9 between pins 1 and 2
J10 between pins 1 and 2
Single shunt current readingJ9 between 2 and 3
J10 between 2 and 3
DocID025649 Rev 1 25/35
UM1703 STEVAL-IHM045V1 schematic diagrams
35
Table 4. Motor control connector J1 pin assignment
J1 Pin Function J1 Pin Function
1 Emergency stop 2 GND
3 PWM-UH 4 GND
5 PWM-UL 6 GND
7 PWM-VH 8 GND
9 PWM-VL 10 GND
11 PWM-WH 12 GND
13 PWM-WL 14 Bus voltage
15 Phase A current in three shunts 16 GND
17Phase B current in three shunts orCurrent feedback in single shunt
18 GND
19 Phase C current in three shunts 20 GND
21 Not connected 22 GND
23 Not connected 24 GND
25 Not connected 26Heatsink
temperature
27 Not connected 28 VDD μ
29 Not connected 30 GND
31 H1/Enc A 32 GND
33 H2/Enc B 34 H3/Enc Z
Using the STEVAL-IHM045V1 with the STM32 FOC firmware library UM1703
26/35 DocID025649 Rev 1
11 Using the STEVAL-IHM045V1 with the STM32 FOC firmware library
The “STM32 FOC firmware library” provided together with the STM3210B-MCKIT, STM32100B-MCKIT or available for download in the ST website, performs the field-oriented control (FOC) of a permanent magnet synchronous motor (PMSM) in both sensor and sensorless configurations.
It is possible to configure the firmware to use the STEVAL-IHM045V1 as the power stage (power supply plus power block of Figure 2) of the motor control system.
This section describes the changes that need to be applied to the “STM32 FOC firmware library” in order for the firmware to be compatible with the STEVAL-IHM045V1.
11.1 Environmental considerations
Warning: The STEVAL-IHM045V1 evaluation 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: Any measurement 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 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.
An isolated AC power supply can be constructed using an isolation transformer and a variable transformer.
Note: Isolating the application rather than the oscilloscope is highly recommended in any case.
DocID025649 Rev 1 27/35
UM1703 Using the STEVAL-IHM045V1 with the STM32 FOC firmware library
35
11.2 Hardware requirementsThe following items are required to run the STEVAL-IHM045V1 together with the “STM32 FOC firmware library”.
• The STEVAL-IHM045V1 board
• Any of the STM32 evaluation boards with an MC connector such as STM3210B-EVAL (MB525), STEVAL-IHM022V1, STEVAL-IHM039V1, STEVAL-IHM033v1, STM32100B-EVAL (MB871), STM3210E-EVAL (MB672), STM320518-EVAL (MB965), STM32xG-EVAL (MB786), STM32303C-EVAL (MB1019)
• An insulated AC or DC power supply
• A programmer/debugger dongle as required by the 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.
• A 3-phase brushless motor with a permanent magnet rotor (not included in the package)
• An insulated oscilloscope (as necessary)
• An insulated multimeter (as necessary)
11.3 Software requirementsTo customize, compile and program (in the microcontroller memory) the “STM32 FOC firmware library”, a firmware developing toolchain must be installed. For documentation about the “STM32 FOC firmware library”, refer to the STMicroelectronics website or contact your nearest STMicroelectronics office. Refer to the control board user manual for further details.
11.4 STM32 FOC firmware library customizationTo customize the “STM32 FOC firmware library” the “ST Motor control workbench” can be used.
The required parameters for the power stage related to the STEVAL-IHM045V1 are reported in Table 5.
Using the STEVAL-IHM045V1 with the STM32 FOC firmware library UM1703
28/35 DocID025649 Rev 1
Table 5. STEVAL-IHM045V1 motor control workbench parameters
Parameter STEVAL-IHM045V1 default value Unit
ICL shut out Disabled
Dissipative brake Disabled
Bus voltage sensing Enabled
Bus voltage divider
125 (using STM3210B-EVAL, STM32100B-EVAL, STM3210E-EVAL, STM320518-EVAL,
STM3220G-EVAL, STM3240G-EVAL, STEVAL-IHM022V1, STEVAL-IHM039V1 or
STEVAL-IHM033V1)
115 (using STM32303C-EVAL)
Min rated voltage 40 V
Max rated voltage 375 V
Nominal voltage 325 (using 230 VAC) V
Temperature sensing Enabled
V0 1055 mV
T0 25 °C
∆V/∆T 22 mV/°C
Max working temperature on sensor 70 °C
Over current protection Enabled
Comparator threshold 0.50 V
Over current network offset 0 V
Over current network gain 0.47 V/A
Expected overcurrent threshold 1.0638 A
Overcurrent feedback signal polarity Active low
Overcurrent protection disabling network Disabled
Overcurrent protection disabling network polarity
Any
Current sensing Enabled
Current reading topologyThree shunts or one shunt resistor depending
on configuration (see Section 10.4.2)
Shunt resistor(s) value 0.47 Ω
Amplifying network gain(1) 3.1
T-noise 300 ns
T-rise(1) 1900 ns
T-rise(2) 2250 ns
Power switches
Min dead-time1500 ns
DocID025649 Rev 1 29/35
UM1703 Using the STEVAL-IHM045V1 with the STM32 FOC firmware library
35
Parameter STEVAL-IHM045V1 default value Unit
Power switchesMax switching frequency
50 kHz
U,V,W driverHigh side driving signal
Active high
U,V,W driverLow side driving signal
Complemented from high side
Disabled
U,V,W driver
Low side driving signal Polarity
Active high
1. Using external operational amplifier (see Section 10.3)
2. Using direct motor currents sampling and STM32303C-EVAL (see Section 10.2)
Table 5. STEVAL-IHM045V1 motor control workbench parameters (continued)
Bill of materials UM1703
30/35 DocID025649 Rev 1
12 Bill of materials
Table 6. Bill of materials
Reference Part / value Manufacturer Manufacturer code
C1,C2,C3 10pF Any
C25,C29 100nF Any
C14 470nF Any
C33,C35,C40 2.2nF Any
C26,C30,C31 680pF Any
C20 10nF Any
C22 4.7nF Any
C24,C27 4.7uF Panasonic EEE1EA4R7SR
C13,C15,C16 2.2uF Any
C21 100uF
C42 10uF MurataGRM31CR60J106KA01
L
C23 100uF Panasonic ECEV1EA101P
C43,C44,C45 1uF Any
C28 22uF Panasonic EEE1EA220SP
C46 1nF Kemet PFR5 102J630J11L4
C47 2.2uF
C48 100nF
C49 22nF
C50 1nF
R2,R3,R4,R6,R58,R61,R69,R74,R79,R82,R106,R107,R108
,R110N.M Any
R5,R7,R55,R56,R57,R104,R105
0 Any
R8,R11,R12,R51,R62,R75,R83
4.7k Any
R92,R93,R95,R97,R98,R102,R103
1k Any
R44,R45,R46 0.47 IRC LR2512-LF-R470-F
R52,R53 470k Any
R54 8.2k Any
R109 220k Any
R113 15k Any
DocID025649 Rev 1 31/35
UM1703 Bill of materials
35
Reference Part / value Manufacturer Manufacturer code
R111 22k Any
R112 51k Any
R115 2k Any
R63, R76, R84, R114 2.2k Any
R70,R77,R85,R94 5.6k Any
R60,R73,R81 680 Any
TP1,TP2,TP3,TP4,TP5,TP6,TP7,TP13,TP14,TP17,TP18,TP
19,TP20,TP21,TP22Vero Technologies 20-2137
D7,D8,D9,D10 STTH1R04U STM STTH1R04U
D12 STTH1L06A STM STTH1L06A
D14 1N4148WT Fairchild 1N4148WT
D16 GREEN LED AVAG HSMG-C170
D23 STPS1150MF STM STPS1150MF
D24 STPS1L60MF STM STPS1L60MF
F1 FUSE Holly 5RF020HK
J1 MOTOR_CONNECTOR Tyco Electronics 3-1761603-1
J2 STRIPLINE1X3 Kontek 4720302140400
Jumper RS
J6 MOTOR Phoenix MSTBA 2.5/ 3-G-5.08
MOTOR Phoenix MSTB 2.5/ 3-ST-5.08
J7 AC MAIN Phoenix MSTBA 2.5/ 2-G-5.08
J8,J12 DC BUS/15V ext Phoenix MSTBA 2.5/ 2-G-5.08
J9,J10 MOUNTING HOLE Harwin H3161-01
J11 JUMPER Any
Insulated Jumper Blue Harwin D3086-97
AC MAIN/DC BUS Phoenix MSTBA 2.5/ 2-G-5.08
NTC1 NTC Epcos B57621C103J62
NTC2 NTC Epcos B57235S509M
T2Transformer 450-500uH
325mWMagneticaE. Rossoni
Magnetica:2217.0003E. Rossoni: ERL5402-01
U2 STGIPN3H60A STM STGIPN3H60A
U3 LD1117S33TR STM LD1117S33TR
Table 6. Bill of materials (continued)
Bill of materials UM1703
32/35 DocID025649 Rev 1
Reference Part / value Manufacturer Manufacturer code
U10 TSV994 STM TSV994IPT
U11 TS374 STM TS374CDT
U12 VIPer06LS STM VIPer06LS
Phoenix MSTB 2.5/2-ST-5.08
Phoenix MSTB 2.5/2-ST-5.08
Screw M3-20 mm
Washer M3
Screw nut M3
Nylon spacer M3 20mm
Plastic bag
Table 6. Bill of materials (continued)
DocID025649 Rev 1 33/35
UM1703 References
35
13 References
• STGIPN3H60A datasheet
• VIPer06L datasheet
• TSV994 datasheet
• TS374 datasheet
• http://www.st.com/mcu/ web site, which is dedicated to the complete STMicroelectronics microcontroller portfolio.
• Magnetica S.r.l
• Elettronica Rossoni
Revision history UM1703
34/35 DocID025649 Rev 1
14 Revision history
Table 7. Document revision history
Date Revision Changes
03-Jun-2014 1 Initial release.
DocID025649 Rev 1 35/35
UM1703
35
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