App Notes and Source Code for Brushless DC Motor Control
App Notes and Source Code for Brushless DC Motor Control
|The app notes on this page are written for brushless motors that are commutated with ‘six-step’ control. This control technique is|
|also called ‘120 degree conduction’ or ‘trapezoidal control’. |
| |
|If you are interested in brushless motors that are driven with sinusoidal currents, please see these links: |
| |
|Permanent Magnet Synchronous Motor Overview |
| |
|Recommended App Notes for Permanent Magnet Synchronous Motors |
| |
|Getting Started |
| | |
|AN885 |Brushless DC Motor Fundamentals |
| |If you are not familiar with how a brushless DC motor works, this is a good place to start. |
| | |
|AN857 |Brushless DC Motor Control Made Easy |
| |This application note provides a good overview of brushless DC motor characteristics and presents |
| |software solutions for the PIC16Fxxx family of devices. |
| | |
| | |
|Low Cost BLDC Control Solutions |
| | |
|AN1175 |Sensorless Brushless DC Motor Control with PIC16 |
| |This application note presents a software solution that can be implemented using a low-cost 8-bit |
| |microcontroller. The software provides sensorless motor commutation and open-loop speed control. |
| | |
|AN899 |Brushless DC Motor Control Using PIC18FXX31 |
| |This application note provides a basic solution for driving a BLDC motor with 3 hall sensors. |
| | |
|AN970 |Using the PIC18F2431 for Sensorless BLDC Motor Control |
| |This application note describes a sensorless BLDC application using the BEMF detection method. |
| | |
| | |
|Advanced BLDC Control Solutions |
| | |
|AN957 |Sensored BLDC Motor Control Using dsPIC30F2010 |
| |This application note describes a BLDC application using hall effect sensors for motor position feedback.|
| |The application source code is written in C and optimized for the dsPIC30F2010 and other 28-pin dsPIC |
| |variants. |
| | |
|AN901 |Using the dsPIC30F for Sensorless BLDC Control |
| |This application note describes a sensorless BLDC control application using the BEMF detection method. |
| |The dsPIC ADC is used to detect the BEMF voltage. The source code has parameters to adjust the open loop|
| |startup sequence and also the closed loop operation of the motor. A GUI is available in the MPLAB IDE to|
| |help set the parameters. See GS005 for more information about the GUI. |
| |The AN901 application is written in C language for a dsPIC30F6010 or a dsPIC30F6010A device. |
| | |
| |Sensorless BLDC Code for 28-Pin dsPIC30F Devices |
| |For a version of this same application that is optimized for the 28-pin dsPIC30F2010 device, see AN992. |
| |This code would also work well with other 28-pin and 40-pin dsPIC30F motor control device variants. |
| | |
|AN1160 |Sensorless BLDC Control with Back-EMF Filtering Using a Majority Function |
| |This application note describes a sensorless BLDC motor control algorithm, implemented using the dsPIC® |
| |Digital Signal Controller (DSC). The algorithm works by the use of a majority function for digitally |
| |filtering the back-Electromotive Force (BEMF). Each phase of the motor is filtered to determine when to |
| |commutate the motor drive voltages. This control technique excludes the need for discrete, low-pass |
| |filtering hardware and off-chip comparators. |
| | |
|AN1106 |Power Factor Correction in Power Conversion Applications Using the dsPIC® DSC |
| |Active power factor correction is often used in electronic motor control applications to improve |
| |conversion efficiency. This application note describes a software solution that is designed to operate |
| |on Microchip’s motor control development system (P/N DM300021). |
| | |
|The app notes on this | |
|page are written for | |
|brushless motors that are| |
|commutated with | |
|‘six-step’ control. This| |
|control technique is also| |
|called ‘120 degree | |
|conduction’ or | |
|‘trapezoidal control’. | |
| | |
|If you are interested in | |
|brushless motors that are| |
|driven with sinusoidal | |
|currents, please see | |
|these links: | |
| | |
|Permanent Magnet | |
|Synchronous Motor | |
|Overview | |
| | |
|Recommended App Notes for| |
|Permanent Magnet | |
|Synchronous Motors | |
| | |
| | |
| | |
| |
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