STMicroelectronics smart actuator STSPIN reference design integrates motor control, sensors and edge AI

 



【Lansheng Technology News】On January 23, 2024, STMicroelectronics’ EVLSPIN32G4-ACT edge AI motor driver reference design is based on the STSPIN32G4 smart three-phase motor driver, which can reduce the difficulty of developing smart actuators. STMicroelectronics’ wireless industrial sensor node STWIN.box (STEVAL-STWINBX1) integrates motor control, real-time analysis of environmental data and IoT connectivity. The two circuit boards can be directly interconnected to speed up system development.


EVLSPIN32G4-ACT integrates motor control system innovation with data science and its applications to achieve breakthroughs in motor control performance and ensure both environmental protection and profitability. STWIN.box’s high-quality sensors collect status information from the actuator engines, while high-speed data logging capabilities help create advanced solutions based on edge artificial intelligence and machine learning. Integration of environmental and control data can show systems engineers exactly how an application is running, help identify anomalies, and enable data-driven algorithms to provide troubleshooting and performance optimization guidance.


STSPIN32G4 integrates a smart gate driver with power management functions and the STM32G4 microcontroller (MCU). The development kit also includes a 48V/5A three-phase motor inverter stage, as well as software for connecting sensor modules and application development software to help users create sensors that can respond to events such as temperature changes, air pressure, sound, motion, ultrasonic signals, etc. Autonomous mechanism for intelligent response.


The STSPIN32G4 motor driver enables compact installation space and low power consumption for IoT and IIoT devices. Target applications include factory and building automation systems, servo drives, and domestic and industrial robots. The STM32G431 embedded MCU has peripherals for controlling three-phase BLDC motors, including four ultra-fast comparators, three operational amplifiers, and two sets of advanced PWM timers and 12-bit ADCs. The device also contains a bootstrap diode, a DC/DC converter, and a low-dropout regulator that converts motor power into rails that power the gate driver and MCU without the need for external circuitry.


EVLSPIN32G4-ACT can drive 12V, 24V, 36V or 48V motors up to 250W. Comprehensive electrical protection functions such as overheating, undervoltage, overvoltage and overcurrent help application designs achieve lower bill of materials cost and smaller size. Users can choose from six-step or vector control (FOC), sensored or sensorless rotor position detection, and three-shunt or single-shunt resistive current measurement.


Leveraging the described functionality and complete supporting software, this reference design integrates ST's sensor and three-phase motor drive technology to bring edge artificial intelligence to motion control applications. Users can bring artificial intelligence close to the main motion controller to create equipment with intelligence and decision-making capabilities, empowering industrial automation, smart appliances, and all applications that require intelligent driving to process data faster and more efficiently and perform corresponding operations.


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