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Sensorless BLDC motor control using a Majority Function Part 1 of 2

This web seminar explains a sensorless Brushless Direct Current (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. For more information, please visit: http://www.microchip.com/MOTOR

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