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DRV8316 Datasheet(PDF) 42 Page - Texas Instruments |
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DRV8316 Datasheet(HTML) 42 Page - Texas Instruments |
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42 / 97 page  Figure 8-32 (a) shows the BLDC motor phase current waveforms for automatic synchronous rectification mode in BLDC motor operating with trapezoidal commutation. This figure shows the operation of various switches in a single commutation cycle. Figure 8-32 (b) shows the zoomed waveform of commutation cycle with details on the ASR mode start with margin time (tmargin) and ASR mode early stop due to active demag. comparator threshold and delays. Current Limit HA, LB HA, LC HB, LC HB, LA LA HC, LA HC, LB HA HA, LC HB, LC HC, LA HC, LB HA Conducts tdead LA Body Diode Conducts LA Conducts tdead HA Body Diode Conducts 3KDVH µ$¶ Current 3KDVH µ$¶ Current tmargin (a) &RPPXWDWLRQ FXUUHQW RI 3KDVH ³$´ (b) Zoomed waveform of Active Demagnetization Figure 8-32. Current Waveforms for ASR in BLDC Motor Commutation DRV8316-Q1 SLVSGK9 – JANUARY 2022 www.ti.com 42 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: DRV8316-Q1 |
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