Position Sensorless Square-Wave Control Application of 3-phase BLDC Using KE17Z Application Note (AN13489)
■Kinetis KE1xZ256 MCUs are the leading parts for the KE1xZ family based on Arm® Cortex®-M0+ core. Providing up to 256 KB flash, up to 48 KB RAM, and the complete set of analog/digital features, KE1xZ extends Kinetis E family to higher performance and broader scalability. Robust and enhanced TSIs provide high-level stability and accuracy to customer's HMI system. 1 Msps ADC and FlexTimer help build a perfect solution for BLDC motor control systems.
■This application note describes the implementation of the sensorless Motor Control Reference Solution Package (MCRSP) software for a 3-phase Brushless DC motor (BLDC), running on 32-bit Kinetis KE17Z series MCUs. The sensorless control software itself and the BLDC control theory in general is described in 3-Phase BLDC sensorless Motor Control Application. The NXP Freedom board is used as hardware platforms for the BLDC control reference solution. The hardware-dependent part of the sensorless control software is addressed as well, including detailed peripheral setup and the Motor Control Peripheral Drivers (MCDRV
■The KE17Z MCUs integrate key features, such as 12-bit ADC, Analog Comparator (ACMP), and Flexible Timers (FTM) to simplify design and to help reduce system cost. The 3-phase BLDC motor is widely used in the field of industrial control for its high efficiency, high reliability and high-power density. Thanks to the optimized design of the 3-phase BLDC control in the chip, KE17Z is suitable for some low-end applications that have strict cost control. For example, cooling fan and water pump. This application note introduces the principle of BLDC six-step control with hall sensor, hardware and software implementation, including a detailed peripheral setup and driver description.
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highly integrated, low-power and low pin count 16-bit microcontrollers |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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25 January 2022 |
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Rev. 0 |
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AN13489 |
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690 KB |
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