BLDC motor Control

[ses]

Myself using STM32 G474RE board , please someone help me with step by step process with BLDC motor six step commutation control with code.

"I want to control BLDC motor in six step method using STM32G474RE (nucleo board)".

Thank You !

@Kenji1 

[Kenji1]

Hi @ses -san

First I recommend you to read TI's documents about six-step commutation control.

• Sensorless Trapezoidal Control of BLDC Motors (Rev. A)
• https://www.ti.com/lit/ug/spru485a/spru485a.pdf (last version is v13.1, 2013)

These two documents help you to write motor control code.

And about STM32G474RE board, generally changes depending on what kind of circuit configuration is used and what kind of motor driver is used.

• Sensorless BLDC motor control and BEMF sampling methods with ST7MC
• STM32MotorControl:6-step Firmware Algorithm - stm32mcu

How is your circuit configuration?

The main differences are whether to use a comparator or an ADC to detect zero cross back EMF, and whether to commutate by hardware or software.