3-Phase BLDC Motor Sensorless Control Using MC56F8013

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System ConceptThe required commutation timing is provided by setting of commutation constants:Coef_CmtPrecompFrac, Coef_CmtPrecompLShft, Coef_HlfCmt, Coef_Toff, in structureRunComputInit.3-Phase BLDC Motor Sensorless Control using MC56F8013, Rev. 044 Freescale Semiconductor
Chapter 4Hardware4.1 Hardware ImplementationThe BLDC sensorless application runs on Freescale’s MC56F8013 evaluation board (EVB) and on manypower stage and motor configurations. For simplification, it can be better to split power stages and motors,because both motors can be used with both power stages.The application can run on the following power stages:• EVM33395 evaluation motor board• Micro power boardThe application can run with following motors:• IB23811 motor (produced by MCG)• N2311 low voltage motor (produced by Pittman)One of the power stages and one of the motors can be selected to create an application setup and canrun using the MC56F8013 EVB.More information on running the application with different power stages and motors is given in Chapter 7Tuning.NOTEIn the application software, use the #define directives in thebldcadczcconfig.h file to select the desired power stage board and motor.NOTEAlthough this reference design demonstrates the application using lowvoltage power stages, it can be adapted to high voltage power stages andapplications as well.3-Phase BLDC Motor Sensorless Control using MC56F8013, Rev. 0Freescale Semiconductor 45
Page 1: 3-Phase BLDC Motor SensorlessContro
Page 4 and 5: 3-Phase BLDC Motor Sensorless Contr
Page 7 and 8: Appendix B.Glossary3-Phase BLDC Mot
Page 9: Chapter 1Introduction1.1 Introducti
Page 12 and 13: Introduction• Ability to sequenti
Page 14 and 15: Control TheoryVoltage120120Phase AP
Page 16 and 17: Control Theory2.2 Power StageThe vo
Page 18 and 19: Control Theory2.3.2 Mathematical Mo
Page 20 and 21: Control TheoryFigure 2-6 shows that
Page 22 and 23: Control Theory2.3.3.2 Effect of Mut
Page 24 and 25: Control TheoryChannel 1 in Figure 2
Page 27 and 28: Sensorless Drive Conceptcontroller.
Page 29 and 30: System Blocks Conceptcommutation co
Page 31 and 32: System Blocks ConceptThe Freescale
Page 33 and 34: System Blocks ConceptStart MotorAli
Page 35 and 36: System Blocks ConceptAfter several
Page 37 and 38: System Blocks ConceptPhase Back-EMF
Page 43: System Blocks Concept• Zero cross
Page 47 and 48: Component Descriptions4.1.2 Hardwar
Page 49 and 50: Component DescriptionsThe SMOS eval
Page 51 and 52: Component DescriptionsMotorConnecto
Page 53 and 54: Chapter 5Software Design5.1 Introdu
Page 55 and 56: Main Software Flow ChartMain LoopIs
Page 57 and 58: 5.3.1 Application State Machine Pro
Page 59 and 60: Chapter 6Application Setup6.1 Appli
Page 61 and 62: Application Descriptionfault signal
Page 63 and 64: The FreeMaster software supports th
Page 65 and 66: Application Setup6.2.1 MC56F8013 EV
Page 67 and 68: Projects FilesIn this application,
Page 69 and 70: Chapter 7Tuning7.1 IntroductionThe
Page 71 and 72: 7.3.1.2 UDCBUS_FILT_INDEXFiltering
Page 73 and 74: Application Related ParametersOutpu
Page 75 and 76: Application Related Parameterscommu
Page 77 and 78: Motor Related ParametersThis parame
Page 79 and 80: Motor Related Parameters0: A top, B
Page 81 and 82: Motor Related ParametersFor a detai
Page 83 and 84: Motor Related ParametersCommutation
Page 85 and 86: Motor Related ParametersWhere;T_Cmt
Page 87 and 88: Motor Related Parameters7.5.5.1 Par
Page 89 and 90: Motor Related ParametersThe integra
Page 91 and 92: Appendix A.References1. Design of B
Page 93 and 94: Appendix B.GlossaryAC — alternati
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3-Phase BLDC Motor Sensorless Control Using MC56F8013

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