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

Motor-driven

Electrical Drilling Machine

With the rapid advancement in science and technology, the development and upgrading of electric power tools are gaining momentum to cater to the diverse market demand in various domains such as smart applications, environmental protection, and safety operation. The AT32 MCU-based electrical drilling machine boasts such features as accurate torque control, auto turn-off, and overload protection aimed at bringing more benefits to users.

Key features

1-shunt/2-shunt current sensing, sensorless FOC control
Initial rotor position detection, without reverse rotation
Higher start-up torque, fast acceleration, extended speed range
Stepless forward-reverse speed control, electric energy regeneration during deceleration and braking

Benefits

High-frequency and large-memory-based MCU that supports quick start-up and response of power tools through fast calculation of current/speed/position.
High-frequency PWM with high resolution to ensure motor control stability and efficiency.
Embedded high-performance dual OPA, for optimized circuit design and lower cost.
Embedded comparator, for better overcurrent protection.

Applicable Model： AT32F4212

Key parameters

Item	Parameters
Control method	Sensorless FOC vector control
Current sampling	1-shunt/2-shunt current sampling
Initial position detection	3-phase voltage vectors pulse injection
Angular estimation	Luenberger observer + Q-PLL
Speed range	500 ~ 40,000 rpm
Speed response	Full-speed rising time < 250ms
Protection mechanism	Stall, overcurrent, overvoltage, and under-voltage protection

Motor-driven

Automotive

Intelligent Household

Industrial Control

Electric Power Tools

Electrical Drilling Machine

Key parameters

Block diagram

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