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Using the PIC18F2431 for Sensorless BLDC Motor Control

From Microchip Technology, Inc.
 

 
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 their control in Microchip application note AN885, Brushless DC (BLDC) Motor Fundamentals. We have also discussed the use of PIC18FXX31 devices to control a BLDC motor in both open loop and in closed loop using Hall effect sensors and quadrature encoders. This applications note describes BLDC motor speed control without the use of sensors.

Product Announcements
Dart Controls, Inc. - Brushless DC Drive News From Dart Controls
Dart will be introducing two new BLDC products this fall, further enhancing Dart's brushless DC drive offering by adding: Line voltage input capability (720 Series) Panel mount integrated BLDC... (read more)
Portescap - Portescap Brushless DC Motors
Portescap offers the broadest miniature and specialty motor product line in the industry, including Brushless DC technology. With speeds up to 1,000 rpm and Frame sizes from 12.7 mm (.5 in.) to 58 mm... (read more)
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CROUZET INTRODUCES STAND-ALONE CONTROLLER FEATURING 4-QUADRANT FUNCTIONALITY AND HIGH POWER IN CONVENIENT PACKAGE SIZE. (read more)
Crouzet - CROUZET INTRODUCES STAND-ALONE CONTROLLER
CROUZET INTRODUCES STAND-ALONE CONTROLLER FEATURING 4-QUADRANT FUNCTIONALITY AND HIGH POWER IN CONVENIENT PACKAGE SIZE. (read more)
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)
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)
Melexis, Inc. - Optimal System Integrated for Sensorless BLDC Apps
The new MLX81200 sensorless BLDC motor controller uses TruSense and SineDrive technologies. This development opens new possibilities for system integration of automotive BLDC motor applications... (read more)
 

Topics of Interest
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)
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,... (Read More)
AN901 Using the dsPIC30F for Sensorless BLDC Control Known Limitations Author: Charlie Elliott Smart Power Solutions, LLP As delivered, the maximum output frequency at Co-author: Steve Bowling which... (Read More)
AN1160 Sensorless BLDC Control with Back-EMF Filtering Using a Majority Function SENSORED CONTROL VERSUS Author: Daniel Torres Microchip Technology Inc. SENSORLESS CONTROL The BLDC motor is used for... (Read More)
This application note describes a sensorless brushless DC (BLDC) motor control algorithm, implemented using the dsPIC® digital signal controller (DSC). The algorithm works by digitally filtering... (Read More)