AN2528

www.DataSheet4U.com Freescale Semiconductor, Inc. Application Note AN2528/D Rev. 0, 5/2003 Standard Space Vector Modulation TPU Function Set (svmStd) By Milan Brejl, Ph.D. Freescale Semiconductor, Inc... Functional Overview Standard Space Vector Modulation (svmStd) is a technique that is used to implement a straightforward method of switching motor windings in applications such as AC induction motor control and PMSM motor control. The function set consists of 5 TPU functions: Standard Space Vector Modulation – Top (svmStd_top) Standard Space Vector Modulation – Bottom (svmStd_bottom) Synchronization Signal for Standard Space Vector Modulation (svmStd_sync) Resolver Reference Signal for Standard Space Vector Modulation (svmStd_res) Fault Input for Standard Space Vector Modulation (svmStd_fault) The svmStd_top and svmStd_bottom TPU functions work together to generate a 6-channel 3-phase center-aligned PWM signal with dead-time between the top and bottom channels. The Synchronization Signal for the svmStd function Phase A - top Phase A - bottom Phase B - top Phase B - bottom Phase C - top Phase C - bottom Synchronization signal Resolver reference signal Fault (input signal) 1.6 m s Change of PW M period FAU LT ! New INITIALIZATIO N Figure 1. Signals generated by svmStd TPU function set © Freescale Semiconductor, Inc., 2004. All rights reserved. © Motorola, Inc., 2003 For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, ...