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24V/35W 3-Phase PMSM Sensorless FOC Drive with HRPWM (Stator-Mounted)

Description

Design variant of 24V 35W PMSM 3-Phase Motor Drive (2”x4” Form Factor), with the following changes:

  • Application MCU moved to separate board and the board role is now solely motor drive
  • Uses Samtec HLE Miniature high-current (4.1A/pin) bottom-entry SMT board header allowed easy production assembly by dropping down motor stator terminals to make U/V/W connections
  • AVX Poke-Home 00-9296 small footprint, high-current (5A with 22AWG wire) top-entry wire-to-board saves board space at the expense of serviceability
  • Mostly SMT on A-Side with few THT connectors and ECAPs

Block Diagram


🔴TI TMS320F28027F 32-bit 60MHz MCU with InstaSPIN-FOC
🟠TI DRV8323S 65V 3-phase Smart Gate Driver with Current Shunt Amplifiers
🟡3x TI CSD88537ND 60V N-ch Power MOSFET
🟢AVX Poke-Home 00-9296 Poke-in Connector
🔵Samtec HLE Bottom-entry SMT board header

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