3-Phase BLDC Motor Sensorless Control Using MC56F8013

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Tuning7.3.2.1 Parameter SummaryNameADCZC_PHASE_x_ANYADCZC_PHASE_x_POS_NEGADCZC_PHASE_x_NEG_POSDescriptionMask for ADC zero crossing detection. Here, x corresponds to A, B or C.This mask defines the ADC masks used to mask zero crossing input. Therefore, forcorrect operation, all masks must be defined according to the ADC zero crossingcontrol register.For example, if ADC channel 6 is used for phase A back-EMF sensing, these masksmust be defined as following:ADCZC_PHASE_A_ANY..............0x3000ADCZC_PHASE_A_POS_NEG...0x1000ADCZC_PHASE_A_NEG_POS...0x2000INDEX_XC_PHASE_xIndex for phase selection for phase x.7.3.3 PWM Mode Selection DefinitionThe BLDC sensorless application enables one of two PWM modes: complementary mode andindependent mode. Each mode is described in Figure 7-3 and Figure 7-4.These parameters are not available for changing within FreeMaster.In the application software, some properties are only implemented for complementary PWM mode, wherecomplementary PWM mode allows energy recuperations.NOTEIn the application software, use the #define directives in thebldcadczcconfig.h file to select the PWM operation mode.3-Phase BLDC Motor Sensorless Control using MC56F8013, Rev. 074 Freescale Semiconductor
Application Related Parameterscommutation commutation commutationcommutationcommutationcommutationPWMA +A offA offA -B +B -B offB offC +C -C offC off60120 180 240 300 360tFigure 7-3. Independent PWM ModeElectrical Anglecommutation commutation commutationcommutationcommutationcommutationPWMA +A offA swapA offA -B +B swapB offB offB swapB -C +C offC swapC offC -60120 180 240 300 360tFigure 7-4. Complementary PWM ModeElectrical Angle3-Phase BLDC Motor Sensorless Control using MC56F8013, Rev. 0Freescale Semiconductor 75
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3-Phase BLDC Motor SensorlessContro
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3-Phase BLDC Motor Sensorless Contr
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Appendix B.Glossary3-Phase BLDC Mot
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Chapter 1Introduction1.1 Introducti
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Introduction• Ability to sequenti
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Control TheoryVoltage120120Phase AP
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Control Theory2.2 Power StageThe vo
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Control Theory2.3.2 Mathematical Mo
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Control TheoryFigure 2-6 shows that
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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 and 44: System Blocks Concept• Zero cross
Page 45 and 46: Chapter 4Hardware4.1 Hardware Imple
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: Application Related ParametersOutpu
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
Page 96: How to Reach Us:Home Page:www.frees
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3-Phase BLDC Motor Sensorless Control Using MC56F8013

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