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Frequency Locked Loop FLL DC Motor Speed Controller

Abstract: hard disk spindle fpga based bldc motor sun tracking step motor mathcad Bode diagram speed control torque control AN1373 L7200 0x06L
Text: AN1373 APPLICATION NOTE SPINDLE MOTOR CONTROL FLL AND DIGITAL FILTER ANALYSIS by Maurizio Scavazzon In the disk drive market the need for sinusoidal spindle motor drive is getting more and more important due to factors like acoustic noise, motor wear out, torque ripple, speed control accuracy, etc. In particular, the speed control precision is a key feature and only a flexible and reliable digital solution allows