Regarding the motor control scheme, DSP, MCU and FPGA each have their own characteristics. Because DSP has strong data processing capability and fast computing speed, it is suitable for high-end complex motor system control, but it depends on the maturity and stability of software algorithms, and it has higher requirements for developers. FPGAs are well suited for custom motor drives through integrated logic circuits and dedicated motor drive circuits, but there is a slight lack of versatility in motor control. MCUs usually focus on the number of I/O interfaces and the size of programmable memory. They are ideal for applications with a large number of I/O operations, so they are widely used in systems with low cost, low power consumption and low precision. However, due to its limited processing capacity, the application occasions are subject to relatively large restrictions.
In order to bring you a deep understanding of the mainstream motor control solutions on the market, the electronic enthusiast website will start from three directions: MCU, DSP and FPGA, and take stock of the motor control solutions introduced by major manufacturers. This series is mainly for the MCU field, and will continue to improve other series in the future, so stay tuned!
MCU is the mainstream motor control solution in the market, suitable for high, medium and low-end motor control. Through the integrated motor control module, the customer's development of the motor control can be simplified; and the servo control and protection functions of the motor can be better realized than the strong control function of the DSP. Currently, 8-bit MCUs are mainly used for low-cost, low-performance applications in motor control, while 16-bit and 32-bit MCUs are used in medium/high-performance applications.
Infineon needle XMC1000
Infineon has launched a new XMC1000 industrial microcontroller for the Chinese market, which has a high cost performance in the field of motor control. The XMC1000 combines the ARM Cortex-M0 core with cutting-edge 65nm process technology to overcome the limitations of today's 8-bit design and give current 8-bit users the opportunity to enjoy 32-bit performance without having to pay for price or ease of use. cost.
Introduction
The XMC1000 has the most scalable flash portfolio with capacities ranging from 8KB to 200KB. The three different series of the XMC1000 cover a wide range of applications. The XMC1100 family is an entry-level choice for XMC microcontrollers with six 12-bit A/D converter channels (sampling rate up to 1.88 megasamples/sec) and four 16-bit timers (capture/compare unit 4 (CCU4)) ) and a wide operating voltage range (1.8V-5.5V). These features make the XMC1000 suitable for a wide range of industrial applications. The X MC1200 series features peripherals for LED lighting and HMI design, including a capacitive Touch and LED display control unit, a BCCU. The BCCU provides flicker-free dimming and color control of the LED with little or no intervention. The range of products is available from -40°C to 105°C. The XMC1300 Series meets the real-time control needs of motor control or digital power conversion applications. It integrates a powerful capture/compare unit CCU8 (supports 8 pairs of complementary PWM generation and asymmetric PWM generation), Integrated Position Interface Unit (POSIF), support Precise motor position detection. The XMC1300 Series also integrates an arithmetic coprocessor that supports sensorless FOC (Field Oriented Control) solutions to improve motor operating efficiency. This is not available in other Cortex-M0 based microcontroller products. The XMC1300 series has an operating temperature of up to 105 °C.
XMC1000 family member feature table
Functional block diagram
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