3-Phase BLDC Motor Sensorless Control Using MC56F8013

More documents

Recommendations

Info

Tuning7.3.1.4 NO_INIT_DC_BUS_SAMPLESNumber of samples to measure and average DC-bus voltage, after ADC is first initialized.After ADC is initialized, this number of samples is taken, summed, and then divided by this value. Thefiltered DC-bus voltage value is used to set the ADC offset register for the first time.See the following code (in InitADCMeasurements).for (wwLoopCtr = 1; wwLoopCtr
Application Related ParametersOutputDirection UpOutputDirection DownRequested ValueRequested ValueTimeFigure 7-2. RampIf requestedValue is greater than actualValue, the rampGetValue function returns actualValue +incrementUp until the maximum is reached (maximum is requestedValue), at which point it will returnrequestedValue.If requestedValue is less than actualValue, the rampGetValue function returns actualValue –incrementDown until the minimum is reached, (minimum is requestedValue), at which point it will returnrequestedValue.Note that this value is in fractional format, not absolute revolutions per minute.7.3.1.8 RAMP_INCREMENT_DOWNDecrement step for the deceleration ramp of the speed setting.See 7.3.1.7 RAMP_INCREMENT_UP.7.3.2 Parameters Defined in bldcdrv.h (Masks)These mask definitions are related to the hybrid controller and the hardware used. They include mainlyADC masks for zero crossing checking and PWM masks for hard and soft switching patterns. The masksare defined in bldcdrv.h are used in arrays in bldcdrv.c.These parameters are not available for changing within FreeMaster.Time3-Phase BLDC Motor Sensorless Control using MC56F8013, Rev. 0Freescale Semiconductor 73
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 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: 7.3.1.2 UDCBUS_FILT_INDEXFiltering
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
Page 96: How to Reach Us:Home Page:www.frees
show all

3-Phase BLDC Motor Sensorless Control Using MC56F8013

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?