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The back-EMF (BEMF) zero crossing point (ZCP) based position sensorless control of permanent magnet brushless DC (PM BLDC) motor is a simple and attractive method. But the direct BEMF ZCP methods available in the literature do not take into consideration the discontinuity in motor phase currents during the PWM OFF periods. A detailed analysis has revealed that under this discontinues mode of operation,...
A PM BLDC motor drive using Texas Instrument F281× series DSP controller is developed. This 32-bit controller architecture is specifically built for high performance and math intensive power electronics control. The drive setup, sensors and interfacing circuit design, software development, simulation and hardware implementation of the drive is presented in this paper along with detailed results.
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