雅特力科技 Artery :: Usher in a new era of 32-bit microcontrollers

Motor-driven

Automotive

Electric Scooter
Electric Motorcycle

Intelligent Household

High-speed Hair Dryer
Ceiling Fan Controller
Washing Machine

Industrial Control

Servo controller
High-speed Ventilation Exhaust Fan

Electric Power Tools

Electrical Drilling Machine
Chain Saw
Mower

Mower

High-performance motors based on AT32 MCU are designed to reduce power consumption and noise of a lawn mower while at the same time making it easier to operate and more efficient to mowing lawns.

Key features

1-shunt current sensing, sensorless six-step square-wave commutation
Initial motor position detection, larger start-up torque, wider speed control range
Stepless forward-reverse rotation control, low-speed control, regenerative braking function
Applicable to mower motor and vehicle motor drive

Benefits

High-frequency PWM with high resolution to ensure motor control stability and efficiency.
Up to 2Msps 12-bit ADC to sample motor control signals.
Embedded comparator, for better overcurrent protection.

Applicable Model： AT32F421

Key parameters

Item	Parameters
Motor type	DC brushless motor
Current sampling	1-shunt current sensing
Speed range	100 ~ 30,000 rpm
Initial angle detection	2-phase voltage vectors pulse injection
Phase change timing detection	BEMF zero-crossing detection with ADC/Comparator
Acceleration	Full-speed rising time < 1 second
Protection mechanism	Stall, overcurrent, overvoltag and undervoltage protection

Block diagram