SSZT853 December   2017 DRV10983-Q1 , DRV10987

 

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    2.     As Figure 3 Illustrates, the IPD Phase Applies Current Pulses and Measures the Time Taken for the Current to Reach a Threshold. a Pulse with a Lesser Duration Indicates a Lower Inductance, and from This You Can Estimate the Rotor Position.
    3.     Additional Resources
Technical Article

Integrated Intelligence Part 3: Motor Startup from Standstill Position