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

Motor-driven

High-speed Hair Dryer

To meet diverse market needs, ARTERY has launched its high-speed hair dryer solution with up to 120,000 rpm. The high speed hair drying machine applies sensorless FOC vector control technology and ARTERY's sophisticated motor control algorithm and thus exhibits features such as rapid responsive capability, wider speed control range and flexible air volume adjustment. In particular, it can still maintain robust speed control upon heavy load variations. In addition, this high-speed hair dryer that comes with smaller torque variations is more energy-efficient but less noisy.

Key features

1-shunt/2-shunt current sensing
Rapid current loop calculation, low harmonic, fast response, little vibration

Benefits

High-frequency and large-memory-based MCU that supports fast calculation of FOC algorithm and current regulation.
High-frequency PWM with high resolution to ensure motor control stability and efficiency.
Embedded comparator, for better overcurrent protection.
Advanced timer that outputs multi-channel complementary PWM to drive power modules.
ADC regular and injected mode for accurate current detection.

Applicable Model： AT32F421

Key parameters

Item	Parameters
Motor type	220V_ACPMSM
Control method	Sensorless FOC vector control
Current sampling	1-shunt/2-shunt current sampling
PWM frequency	20kHz ~ 30kHz
Angular estimation	Luenberger observer + Q-PLL
Speed range	10,000 ~ 120,000 rpm
Acceleration time	> 300,000 rpm/s

Motor-driven

Automotive

Intelligent Household

Industrial Control

Electric Power Tools

High-speed Hair Dryer

Key parameters

Block diagram

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