BLDC-Servo

This project implements a FOC motor controller board for 57BLF0x series NEMA brushless motor.

The project goals are:

• to be inexpensive
• fully support FOC drive
• smooth operation for FFB devices
• Large stalled torque == relatively large current drive

The main components are:

• STM32L412 or STM32F103C8T6 MCU
• NCP81151 - MOSFET Gate drivers
• NCS213/INA213 current sense amplifiers
• FDMS8018 N-channel MOSFETS (can be any TDSON-8 30V>= MOSFETS with required current rating)
• MP2359 DC-DC step-down
• SN75176B RS485 transceiver

The board attaches directly to the motor casing with mosfets in direct contact (with thermal paste). This makes a good heatsink for power dissipation.