Texas Instruments MC 8316AEVM Series Manuals

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 www.ti.com Table of Contents SLLU335A – AUGUST 2021 – REVISED JANUARY 2022 Submit Document Feedback MCF8316A Tuning Guide 1 Copyright © 2022 Texas Instruments Incorporated