Key Design Challenges
This subsystem must provide real-time, high-precision control of multiple brushless DC motors with tight synchronization to replicate natural human motion. Accurate current sensing and signal conditioning are essential for torque control, fault detection, and ensuring operational safety. Additionally, the unit must efficiently manage substantial power demands while maintaining thermal limits. Reliable wired communication is necessary to support control signals and sensor feedback with minimal latency.
STMicroelectronics Product Portfolio
- STM32F4, STM32F7, and STM32H7 Microcontrollers: High-performance MCUs optimized for real-time motor control and signal processing.
- STSPIN32 Motor Control ICs and STDRIVExx Gate Drivers: Integrated motor drivers offering compact, efficient, and precise control of brushless DC motors.
- Current Sensors (TSC2020, TSC240): High-precision bidirectional current sense amplifiers with enhanced PWM rejection.
- STPower MOSFETs and PowerGaN: High-efficiency power switches for motor drive stages.
- Connectivity Solutions: Industrial grade CAN and Ethernet transceivers for robust wired communication.
- High Speed Comparator and Op-Amp: for high-speed response and low power consumption, ideal for very compact and cost-sensitive PCB.
ST Total Solution Advantages
ST provides integrated motor control solutions that reduce design complexity and size while improving efficiency and reliability. High-precision current sensing enhances safety and performance, and advanced power devices help manage thermal challenges. Flexible connectivity options enable scalable and modular limb designs, supported by comprehensive software libraries and development tools.