Artery AT32 MCU Empowers Innovation in High-Precision Servo Control Systems

Technical Evolution and Core Requirements of Servo Control Systems  

As a key component in the field of industrial automation, servo controllers are evolving from basic motion control toward high precision and intelligence. Traditional solutions face computational bottlenecks when meeting requirements such as high-speed response (acceleration/deceleration > 650krpm/s) and nanoscale position accuracy. The AT32 series MCUs launched by Artery Technology address these challenges through a heterogeneous architecture of **Cortex-M4/M7 core + FPU + DSP instruction set**. This architecture enables single-cycle multiply-accumulate operations and hardware trigonometric function acceleration, compressing the position loop control cycle to less than 10μs, thus meeting the stringent real-time requirements of industrial servo systems.  

Three Core Servo Control Advantages of AT32 MCUs  

1. High-Precision Signal Chain Integration  

- Integrates a 5.33Msps 12-bit high-speed ADC (5x higher sampling rate than traditional 1Msps ADCs) with a programmable oversampling filter, achieving a current detection error of <0.5%.  

- Supports dual-mode angle feedback from Hall sensors/magnetic encoders, with a built-in magnetic encoder angle deviation self-learning algorithm (compensation accuracy of ±0.1°) to eliminate mechanical installation errors.  

2. Innovation in Real-Time Control Architecture  

- Maintains torque ripple of <2% across the full speed range from zero to rated speed via an M/T method speed estimator and adaptive observer.  

- Synchronization error between hardware-triggered ADC sampling and PWM output is <5ns, ensuring precise control of SVPWM modulation dead time.  

3. Intelligent Parameter Tuning and Communication Integration  

- Fully automatic parameter identification system: Completes motor resistance/inductance/MTPA curve identification within 30 seconds, replacing manual debugging.  

- Multi-protocol industrial bus integration: Supports CAN FD (5Mbps), EtherCAT slave, and Modbus-TCP for real-time servo status monitoring.  

In-Depth Analysis of Servo-Specific Functional Modules  

1. Robust Control Technology  

- Load inertia identification accuracy reaches 95%. Combined with a feedforward compensation algorithm, it suppresses step disturbance response time to <50ms.  

- Vibration suppression function eliminates mechanical resonance below 200Hz, increasing equipment lifespan by 40%.  

2. Safety Monitoring Mechanism  

- Triple protection circuits: Stall detection (response <1ms), overcurrent protection (±5% accuracy), and DC bus voltage monitoring.  

- Compliant with ISO 13849 PLc safety certification, with a fault coverage rate of >99%.  

Recommended Models and Performance Comparison   

 Development Support Ecosystem  

1. Hardware Design Resources  

- Provides servo drive reference designs (including power stage topology and EMC solutions).  

- The motor control-specific evaluation board AT-START-F437 integrates an IPM interface and encoder interface.  

2. Software Algorithm Libraries  

- Open-source FOC 5.0 control library (including MTPA/MTPF algorithms).  

- Supports one-click motor parameter identification tools in IAR/Keil environments.  

Industry Application Expansion  

This solution has been successfully deployed in:  

- Industrial robot joint modules (repetitive positioning accuracy of ±0.01mm).  

- CNC machine tool spindle drives (speed fluctuation <0.02%).  

- Semiconductor wafer handling robots (cycle time reduced by 30%).  

Driven by "Made in China 2025", Artery’s AT32 series is redefining the performance boundaries of next-generation servo control systems with its threefold advantages: "nanoscale control precision, microsecond-level response speed, and full-stack development ecosystem".

About Mandu Technology

Shenzhen Mandu Technology Co., Ltd. has steadfastly centered its operations on the distribution of high-performance, high-quality, and highly reliable integrated circuit products. Its portfolio encompasses memory chips, differential crystal oscillators, and MCU microcontrollers, while progressively integrating analog signal chain products. The company prides itself on delivering comprehensive and cost-effective solutions to its customers. Its products find applications across a broad spectrum of industries, including but not limited to network communication, industrial control, robotics, medical equipment, personal health, and numerous other fields.

Business: sales@manduic.com

Website: www.manduic.com

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