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Sensored 3-Phase BLDC Motor Control Using Sinusoidal Drive AN3453
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Introduction
1
Overview
2
Sinusiodal Drive - Sensored BLDC Motor Principle
2.1
BLDC Sensored Operation
2.2
Sinusoidal Current Drive
3
Angular Position Detector
4
Drive Signal Generator
5
Fault Detection Control
5.1
Overcurrent Protection
5.2
Stall Detection
6
Firmware Implementation
6.1
Button Controls
6.2
Motor Start-up
6.3
Interrupt Sources
7
Sinusoidal Drive 3-Phase BLDC Performance
7.1
CWG Drive Signals for 3-Phase BLDC
7.2
Phase Voltage and Line Current
8
Conclusion
9
Appendix A Schematics
10
Appendix B: MPLAB® Code Configuration (MCC) Peripheral Configuration
11
Appendix C Source Code Listing
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