Texas Instruments MCF8316A, Руководство по настройке

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User’s Guide
MCF8316A Tuning Guide
ABSTRACT
This Tuning guide provided step by step guidence to setup MCx8316AEVM, connect MCF8316A GUI to the
EVM and tune a 3-phase Brushless DC motor using
MCF8316A .
Table of Contents
1 Revision History ...................................................................................................................................................................... 2
2 Introduction ............................................................................................................................................................................. 3
2.1 Hardware and GUI Setup................................................................................................................................................... 3
3 Essential Controls .................................................................................................................................................................. 6
3.1 Recommended Default Values........................................................................................................................................... 6
3.2 Device and Pin Configuration............................................................................................................................................. 6
3.3 Control Configuration - Motor Parameters......................................................................................................................... 7
3.4 Control configuration - Closed Loop................................................................................................................................... 7
3.5 Testing for Successful Startup into Closed Loop................................................................................................................ 7
3.6 Fault Handling.................................................................................................................................................................... 9
4 Basic Controls ....................................................................................................................................................................... 12
4.1 Device and Pin Configuration........................................................................................................................................... 12
4.2 System Level Configuration............................................................................................................................................. 12
4.3 Control Configurations..................................................................................................................................................... 14
List of Figures
Figure 2-1. Simplified Schematic of MCF8316A.......................................................................................................................... 3
Figure 2-2. MCx8316A EVM Jumper Configuration.................................................................................................................... 4
Figure 2-3. MCx8316A EVM External Configuration................................................................................................................... 5
Figure 3-1. Fault Status............................................................................................................................................................... 8
Figure 3-2. Motor Resistance...................................................................................................................................................... 9
Figure 3-3. Motor Inductance....................................................................................................................................................... 9
Figure 3-4. Motor BEMF Constant............................................................................................................................................. 10
Figure 3-5. Phase Current Waveform Showing a Spike due to Short Circuit............................................................................. 11
Figure 4-1. Phase current and FFT - Dead time compensation disabled.................................................................................. 13
Figure 4-2. Phase current and FFT - Dead time compensation enabled................................................................................... 13
Figure 4-3. Power Supply voltage and phase current waveform when AVS is disabled............................................................ 14
Figure 4-4. Power Supply voltage and phase current waveform when AVS is enabled............................................................ 14
Figure 4-5. MPET - Phase current............................................................................................................................................. 15
Figure 4-6. IPD current waveform during Rand L measurement............................................................................................... 15
Figure 4-7. Reverse Drive Function........................................................................................................................................... 16
List of Tables
Table 3-1. Recommended Default Values.................................................................................................................................... 6
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SLLU335A – AUGUST 2021 – REVISED JANUARY 2022
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MCF8316A Tuning Guide 1
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