ST Microcontrollers STM32 exclusive launch of advanced motor control algorithms

STMicroelectronics expanded 32-bit STM32 microcontroller (MCU) to support vector control of motor functions, added support for sensorless control of a single bypass, internal permanent magnet (IPM) control and permanent magnet synchronous motor (PMSM) motor weak magnetic control algorithms. At present, there are about 40 kinds of motor control applications using STMicroelectronics Cortex-M3 based on the STM32 microcontroller. The new control features were added to the function STM32 Motor Control Library Version 2.0, in a new generation of appliances, industrial drives, pumps, heating ventilation and air conditioning (HVAC) systems, vending machines, cash registers and electrical applications such as cars and motorcycles the field, the new algorithm will help accelerate time to market, reduce material costs, and optimize the motor selection, breaking the run limit. At the same time, STMicroelectronics, through increasing the Keil, IAR and Green Hills tool vendor support for STM32 design environments, and expand the customer through a third party tool chain to use motor control function of the channel. STMicroelectronics customers free of charge in accordance with the provision of STM32 Motor Control Library Version 2.0, this algorithm can be directly based on the STM32 Motor Control STM3210B-MCKIT application of assessment tools and development hardware kit used. Currently available in the design of the new algorithm, the single-bypass current sensing support only need a current sensing resistors, resistor than the needs of three general mechanism sensorless control system cost savings. Single bypass current sensing is STMicroelectronics to develop a patented technology, with high utilization of DC bus voltage and current distortion in small and low audible noise. By adding a "maximize the torque current ratio" (MTPA) control algorithm, extended to the design of libraries to provide greater freedom of design space, enabling them to flexibly define IPM brushless motor electrical parameters to meet the practical application of of the high power density motors and high-speed performance requirements. STMicroelectronics also added stator-voltage closed-loop weak magnetic control algorithm, to reduce micro-controller to motor parameter and environmental changes of the sensitivity of all types of PMSM motors expanded the scope of work. In addition, high-speed operation of a weak magnetic environment, feed-forward control bus voltage ripple can be amended to improve the rectifier performance. From mid-October, STMicroelectronics will be provided in accordance with the needs of customers can speed up the development of a time-and labor-saving rate of the code generation tool. Based on these new algorithms, developers can take full advantage of rich STM32 motor control peripherals, including two three-phase STM32 integrated PWM timer, so that a micro-controller can control two brushless motor. By breaking a microcontroller to control a motor rules, designers can use the STM32 to save cost, reduce design size and power, and will not have any impact on performance. Integrated microcontroller ADC can support three high-precision motor drive used in the current sample-and-hold three-way catch. Because of the STM32 advanced ARM Cortex-M3 CPU industry-standard architecture, the STM32 users in the development of motor control solutions than the use of proprietary business structure to save time. STM32 MCU has two product lines: 72MHz clock frequency and the enhanced series of the basic clock frequency of 36MHz series. STMicroelectronics will be the ultimate integration of these two series of 16KB to 512KB of flash memory, providing 36-pin QFN to 144-pin LQFP or BGA package.