Aiming at the problems of large size

unsatisfactory control effect and poor stability of brushless DC motor driver

a brushless DC motor driver based on hardware field oriented control（FOC） is designed.This driver takes TMC4671 as the control core

tracks the phase current through the current acquisition circuit

obtains the real-time position information of the motor through the encoder

and drives the motor through the half-bridge drive circuit.TMC4671 is hardware FOC chip

FOC algorithm is implemented by hardware internally.Compared with software

the algorithm is faster and more stable.The design of the drive can provide reference for relevant developer

and due to the high integration and the compact size

it is possible to achieve high performance embedded motor control.