Technical Advantages

New Single-Shunt Current Sensing

• Supports multiple single-shunt sampling modes for improved compatibility.

• Effectively reduces noise issues associated with traditional single-shunt sampling.

Ultra-High Speed & High Carrier Frequency Control

• Dual-core architecture enables:

  • 68-series MCUs: Up to 70kHz PWM carrier frequency.

  • 75-series MCUs: Up to 100kHz PWM carrier frequency.

• Current solutions achieve stable operation at 400,000 RPM (electrical speed) for 2-pole vacuum cleaner motors.

Noise Suppression

• FOC_UQCPS (Q-axis voltage feedforward compensation) actively cancels noise by generating inverse sound waves to counteract interference.

Field-Weakening Algorithm

• Applies negative D-axis current to overcome speed limitations caused by high back-EMF.

• Ensures higher maximum speed without sacrificing torque.

AO Observer (Adaptive Observer)

• Reduces dependency on motor parameters, enhancing system compatibility.

• Enables plug-and-play operation—the same firmware adapts to motors of varying specs (e.g., V45, V55, V65) without tuning.

Power Closed-Loop Control

• Delivers high-precision current control.

• Power fluctuation as low as 2–3W in high-power vacuum cleaners.