Digital Control
Digital Control
Digital Control
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► Target Devices/Platforms:<br />
• MC56F8013/23/25<br />
• Motor <strong>Control</strong> Applications<br />
• PM Synchronous Motor<br />
• Sensorless <strong>Control</strong><br />
• AC library<br />
► Applications Usage:<br />
• Washing machines<br />
• Compressors<br />
• Air conditioning units<br />
• Pumps<br />
• Fans<br />
• Industrial drives<br />
• Appliances<br />
► Application Features:<br />
• Vector control of three-phase PM synchronous motor<br />
• Position and speed detection using dq back-EMF observer and tracking observer<br />
• Closed-loop speed control<br />
• Speed range extended using field weakening<br />
• Unidirectional rotation<br />
• Closed-loop current control<br />
• Independent control of flux and of torque<br />
• Startup with alignment<br />
• Three-phase motor currents measured in each phase leg<br />
• 100 µs sampling period on MC56F8023<br />
• FreeMASTER <strong>Control</strong> interface<br />
Freescale, the Freescale logo, AltiVec, C-5, CodeTEST, CodeWarrior, ColdFire, C-Ware, mobileGT, PowerQUICC, StarCore, and Symphony are trademarks of Freescale Semiconductor, Inc.,<br />
Reg. U.S. Pat. & Tm. Off. BeeKit, BeeStack, CoreNet, the Energy Efficient Solutions logo, Flexis, MXC, Platform in a Package, Processor Expert, QorIQ, QUICC Engine, SMARTMOS, TurboLink<br />
and VortiQa are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © 2010 Freescale Semiconductor, Inc. 92<br />
PMSM Sensorless Speed <strong>Control</strong><br />
TM
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