STMicroelectronics STEVAL-CTM010V1

Overview

STEVAL-CTM010V1 from STMicroelectronics is an evaluation board for dual-sensorless 3-phase motor drives with integrated digital power factor correction (PFC), centered on the STM32F303RB ARM Cortex-M4 MCU. It supports up to 2 kW input, features SLLIMM™ IPMs (STGIB10CH60TS-L and STGIPQ3H60T-HZ), and implements field-oriented control (FOC) firmware for compressors and fans in air conditioning outdoor units.

For engineers reviewing the STEVAL-CTM010V1 datasheet, STEVAL-CTM010V1 pinout, STEVAL-CTM010V1 application, or STEVAL-CTM010V1 equivalent, key selection considerations include dual-motor FOC capability, digital PFC CCM mode, SLLIMM™ IPM integration, and STM32F3-based real-time control architecture for HVAC efficiency compliance.

Technical Context

The board implements two independent sensorless FOC motor control stages: Motor 1 uses the STGIB10CH60TS-L (15 A, 600 V) with 1–3 shunt current sensing and overcurrent/overtemperature/UVLO protection; Motor 2 uses the STGIPQ3H60T-HZ (3 A, 600 V) with single-shunt sensing and identical protections. Both operate at up to 20 kHz switching frequency.

The digital PFC stage employs a boost topology controlled by the same STM32F303RB, using STTH30AC06C rectifier and STGWT20H65FB IGBT, delivering up to 1.5 kW with overvoltage, overcurrent, and undervoltage lockout - all synchronized under centralized ARM Cortex-M4 DSP/FPU execution.

Key Specifications

Availability

STEVAL-CTM010V1 is available at Aetrix Electronics and suitable for HVAC system validation, dual-motor appliance development, and digital PFC compliance testing requiring stable component supply and reference-grade firmware integration.

Supply support for STEVAL-CTM010V1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built reference platforms that integrate ST silicon (MCUs, IPMs, drivers, rectifiers) with validated firmware to accelerate adoption of energy-efficient motor control and power conversion architectures.

FAQ

Does STEVAL-CTM010V1 support encoder-based motor control?

No. The board is specifically designed for sensorless field-oriented control using back-EMF estimation. It lacks hardware interfaces (e.g., quadrature encoder inputs or dedicated resolver excitation circuitry) and firmware support for position feedback sensors. All motor control relies on the ST FOC MC SDK's observer-based algorithms running on the STM32F303RB.

Can the PFC stage operate independently of the motor drives?

Yes. The digital PFC section is electrically and firmware-configurable as a standalone subsystem. Its boost converter, sensing network (including ZC_IN, PFC_OPA_IN/NIN, PFC_BKN), and PWM output (PFC_PWM) are routed separately from motor control signals, allowing isolated characterization or integration into non-motor systems.

What thermal management provisions exist for the IPMs?

The STGIB10CH60TS-L includes an NTC thermistor interface (IPM_NTC) and overtemperature shutdown; the STGIPQ3H60T-HZ specifies operation up to 60 W without heatsink. Board layout provides copper pour and thermal vias under both IPMs, and thermal pads are exposed on the bottom layer for optional heatsink attachment to the larger IPM.

Is RS-232 communication enabled by default?

Yes. The board integrates ST3232BDR transceiver (U8) with DB9 connector (J3), powered from +3.3V and configured for TTL-to-RS232 level shifting. TXD/RXD signals connect directly to PA2/PA3 of the STM32F303RB, and the firmware includes UART-based debug and parameter tuning via ST Motor Control Workbench.