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Brushless DC (BLDC) Motor Fundamentals

From Microchip Technology, Inc.
 

 
Brushless Direct Current (BLDC) motors are one of the motor types rapidly gaining popularity. BLDC motors are used in industries such as Appliances, Automotive, Aerospace, Consumer, Medical, Industrial Automation Equipment and Instrumentation. As the name implies, BLDC motors do not use brushes for commutation; instead, they are electronically commutated. BLDC motors have many advantages over brushed DC motors and induction motors. In addition, the ratio of torque delivered to the size of the motor is higher, making it useful in applications where space and weight are critical factors. In this application note, we will discuss in detail the construction, working principle, characteristics and typical applications of BLDC motors.
Product Announcements
BEI Kimco Magnetics - Typical "inside-out" brushless DC (BLDC) motor
BEI Kimco Magnetics The typical "inside-out" brushless DC (BLDC) motor provides greater output power, higher operating speeds and cleaner, quieter operation than its brush-type counterparts. BLDC... (read more)
Crouzet - Kimco application guide for brushless dc motors
Kimco application guide for brushless dc motors. Download this useful pdf to learn more about our brushless dc motors and which applications they work in. (read more)
BEI Kimco Magnetics - Kimco application guide for brushless dc motors
Kimco application guide for brushless dc motors. Download this useful pdf to learn more about our brushless dc motors and which applications they work in. (read more)
KNF Neuberger, Inc. - Vacuum Pump/Piston Compressor Combination
Where independent functions are needed, KNF will match a variety of pumps together on a common motor to save cost and size. Driven by an electronically commutated DC (BLDC) motor, this custom pump... (read more)
BEI Kimco Magnetics - Brushless DC Motors (BLDC)
BEI Kimco has developed brushless DC motors (BLDC) to operate virtually noise-free, ideal for user confidence in quiet operating systems and patient care applications. At BEI Kimco we integrate our... (read more)
BEI Kimco Magnetics - Magnetics product offering for Industrial markets
BEI Kimco is an operation of Custom Sensors & Technologies (CST). BEI Kimco is a leading manufacturer of bldc brushless dc motors, linear and rotary voice coil actuators, smart voice coil... (read more)
Topics of Interest
Brushless Direct Current (BLDC) motors are gaining popularity and larger market acceptance. BLDC motors are used in industries such as Industrial Automation Equipments, Consumer, Medical, Automotive,... (Read More)
Brushless Direct Current (BLDC) motors have many advantages over other types of motors available in the industry. Previously, we have discussed the working principles of BLDC motors and the basics of... (Read More)
The dsPIC30F2010 is a 28-pin 16-bit MCU specifically designed for embedded motor control applications. AC Induction Motors (ACIM), Brushless DC (BLDC) and DC are some typical motor types for which the... (Read More)
Just What the Doctor Ordered: Brushless-dc Motors Brushless-dc motors are taking center stage in medical-equipment design because they last twice as long a competing technologies. •... (Read More)
AN1175 Sensorless Brushless DC Motor Control with PIC16 MOTOR CONTROL Author: Joseph Julicher Dieter Peter BLDC motor control consists of two parts. Part 1 is Microchip Technology Inc. commutating the... (Read More)