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Hardware Engineer’s Guide to a Brushless-DC Motor Controller

March 1, 2022 by Prabhat Ranjan Tripathi

©SHUTTERSTOCK.COM/VECTORV

Brushless-dc (BLDC) motors have best-in-class torque to weight ratio, high efficiency, and effective control algorithms, which make them effective solutions in applications requiring high power density, such as cordless power and garden tools, unmanned aerial vehicles (UAV), robotics, and others. Improvements in semiconductor packaging technology, motor control algorithms, and power management integrated circuits (ICs) have increased the industrial uptake of BLDC motors. High-power battery-powered motor-drive solutions require power levels ranging from a few watts to hundreds or even thousands of watts. High wattage systems require high motor currents, resulting in design challenges of system losses and thermal management. A system designer’s challenge is to accommodate all the functionalities of a motor controller in a compact form for the whole range operation. Typically, a motor controller uses an analog signal chain, analog power management, and digital components with both signal and power traces on the same board. A well-designed printed circuit board (PCB) is required for the system to operate efficiently. This article lays the guidelines for designing a BLDC motor drive PCB.

For more about this article see link below. 

https://ieeexplore.ieee.org/document/9715975

Filed Under: Past Features Tagged With: Integrated circuits, Motor drives, Power system management, Power system measurements, Printed circuits, Service robots, Torque control

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About the Magazine

IEEE Power Electronics Magazine publishes peer-reviewed articles related to power electronics and its applications which encompass the effective use of electronic components, application of control theory and circuit design techniques, and the development of analytical tools used in efficient and effective energy conversion, control, utilization, and conditioning of electric power.

The IEEE Power Electronics Magazine is limited to the field of interest of the IEEE Power Electronics Society. Topics also include publication of new trend technologies that are being pursued by industry, design practices and case studies, significant amount of state of the art surveys tutorials, and non-technical contributions: news about society activities, interviews, and historical articles.

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To educate, inform, and entertain our community of IEEE Power Electronics Society members on technology, events, industry news, and general topics relating to consumer electronics and to further serve and support our Members in professional career development through tutorials and raising awareness of engineering tools and technologies.

The magazine is archived in IEEE Xplore, and articles from all issues are available for download.

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