STSTEVAL-IHM028V12kW three-phase motor control scheme

ST’s STEVAL-IHM028V1 2kW three-phase motor control board uses a small low-loss smart module (SLLIMM) IPM STGIPS20K60-18A 600V three-phase IGBT inverter. The minimum input voltage is 125VDC or 90VAC, and the maximum input voltage is 400VDC or 285VAC. The voltage multiplier ranges from 65 VAC to 145 VAC, and the maximum output power reaches 2000W. It is mainly used in HVAC fans, power tools, industrial drives, and high-power industries. Pump, professional washing machine. This article introduces the main features of STGIPS20K60, block diagram, typical application circuit and main features of STEVAL-IHM028V1, circuit diagram, bill of materials and PCB layout.

STGIPS20K60: SLLIMM™ (small low-loss intelligent molded module) IPM, 3-phase inverter – 18 A, 600 V short-circuit rugged IGBT

This intelligent power module provides a compact, high performance AC motor drive in a simple, rugged design. Combining ST proprietary control ICs with the most advanced short-circuit-rugged IGBT system technology, this device is ideal for 3-phase inverters in applications such as home appliances and air conditioners. SLLIMM™ is a trademark of STMicroelectronics.

Main features of STGIPS20K60:

■ IPM 18 A, 600 V 3-phase IGBT inverter bridge including control ICs for gate driving and freewheeling diodes

■ Short-circuit rugged IGBTs

■ VCE(sat) negative temperature coefficient

■ 3.3 V, 5 V, 15 V CMOS/TTL inputs comparators with hysteresis and pull down /pull up resistors

■ Undervoltage lockout

■ Internal bootstrap diode

■ Interlocking function

■ Smart shutdown function

■ Comparator for fault protection against over temperature and overcurrent

■ DBC leading to low thermal resistance

■ Isolation rating of 2500 Vrms/min

STGIPS20K60 application:

■ 3-phase inverters for motor drives

■ Home appliances, such as washing machines, refrigerators, air conditioners and sewing
machine STSTEVAL-IHM028V12kW three-phase motor control scheme
figure 1. STGIPS20K60 block diagram
STSTEVAL-IHM028V12kW three-phase motor control scheme
figure 2. STGIPS20K60 typical application block diagram

STEVAL-IHM028V1 2kW three-phase motor control board

This document describes the 2 kW 3-phase motor control demonstration board featuring the IGBT intelligent power module STGIPS20K60. The demonstration board is an AC-DC inverter that generates a 3-phase waveform for driving 3-phase motors such as induction motors or permanent magnet synchronous motors (PMSM) up to maximal 2000 W with or without sensors.

The main device presented in this user manual is a universal, fully evaluated and populated design consisting of a 3-phase inverter bridge based on the 600 V IGBT power module in the SDIP 25L package mounted on a heatsink. The IGBT power module integrates all power IGBT switches with freewheeling diodes together with high voltage gate drivers. Thanks to this integrated module, the system has been specifically designed to achieve power inversion in a reliable and compact design. Such integration saves PCB space occupation and assembly costs, together with high reliability due to the design simplicity.

The board is designed to be compatible with single-phase mains, supplying from 90 VAC to 285 VAC or from 125 VDC up to 400 VDC for the DC voltage.
STSTEVAL-IHM028V12kW three-phase motor control scheme
image 3. STEVAL-IHM028V1 motor control board outline drawing

Main features of STEVAL-IHM028V1:

● Minimum input voltage 125 VDC or 90 VAC

● Maximum input voltage 400 VDC or 285 VAC

● With applied input voltage doubler – the range from 65 VAC to 145 VAC

● Maximum output power for applied motor up to 2000 W

● Regenerative brake control feature

● Input inrush limitation with bypassing relay

● +15 V auxiliary power supply based on a buck converter with VIPer™26

● Using IGBT intelligent power module STGIPS20K60 in SDIP 25L molded package

● Fully populated board conception with test points and safety isolated plastic cover

● Motor control connector for interface with STM3210B-EVAL board, STM8/128-EVAL board, and other ST motor control dedicated kits

● Tachometer input

● Hall/encoder inputs

● Overheating protection

● Active fan cooling of heatsink with automatic temperature switch

● Possibility to connect MB843 BLDC daughterboard for sensor-less six-step control

● PCB type and size:

– Material of PCB – FR-4

– Double-sided layout

Copper thickness: ~60um

Total dimensions of demonstration board: 195 mm x 175 mm.

STEVAL-IHM028V1 target application:

● Power fans for HVAC application

● Power tools

● Industrial drives

● High-power industry pumps

● Professional washing machines.
STSTEVAL-IHM028V12kW three-phase motor control scheme
Figure 4. STEVAL-IHM028V1 circuit diagram (1)
STSTEVAL-IHM028V12kW three-phase motor control scheme
Figure 5. STEVAL-IHM028V1 circuit diagram (2)
STSTEVAL-IHM028V12kW three-phase motor control scheme
Image 6. STEVAL-IHM028V1 circuit diagram (3)
STSTEVAL-IHM028V12kW three-phase motor control scheme
Figure 7. STEVAL-IHM028V1 circuit diagram (4)
STSTEVAL-IHM028V12kW three-phase motor control scheme
Figure 8. STEVAL-IHM028V1 circuit diagram (5)
STSTEVAL-IHM028V12kW three-phase motor control scheme
Figure 9. STEVAL-IHM028V1 circuit diagram (6)
STSTEVAL-IHM028V12kW three-phase motor control scheme
Figure 10. STEVAL-IHM028V1 power supply block diagram
STEVAL-IHM028V1 material list:
STSTEVAL-IHM028V12kW three-phase motor control scheme
STSTEVAL-IHM028V12kW three-phase motor control scheme
STSTEVAL-IHM028V12kW three-phase motor control scheme
STSTEVAL-IHM028V12kW three-phase motor control scheme
STSTEVAL-IHM028V12kW three-phase motor control scheme
STSTEVAL-IHM028V12kW three-phase motor control scheme
Figure 11. STEVAL-IHM028V1 PCB layout drawing (top layer)

Figure 12. STEVAL-IHM028V1 PCB layout drawing (bottom layer)
For details, please see:
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00244265.pdf
and
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/USER_MANUAL/CD00292882.pdf

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