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Italy Project | JY02A Sensorless BLDC Controller for Commercial HVAC Fan Motors

2026-01-29

Italy Project | JY02A Sensorless BLDC Controller for Commercial HVAC Fan Motors

1. Project Background

An Italian HVAC equipment manufacturer was developing a new series of energy-efficient commercial ventilation systems.
The design goal was to replace traditional AC motors with sensorless BLDC motors to reduce power consumption, noise, and maintenance costs.

The customer required a compact motor control IC capable of stable startup, smooth speed regulation, and reliable operation under continuous working conditions.

After technical comparison, JY02A (SSOP-20) was selected as the core BLDC motor control solution.


2. Customer & Application Scenario

  • Country: Italy 

  • Customer Type: HVAC equipment manufacturer

  • Application:

    • Commercial exhaust fans

    • Air handling units (AHU)

  • Motor Type: Sensorless BLDC motor

  • Operating Mode: Long-duration continuous operation


3. Our Solution (Process & Configuration)

We provided a complete BLDC control reference solution, including:

  • SPWM drive mode for low-noise fan operation

  • Linear speed adjustment for precise airflow control

  • Current closed-loop control to maintain constant torque

  • Soft start function to reduce mechanical stress on fan blades

The SSOP-20 package allowed easy integration into compact control boards.


4. Key Parameters & System Characteristics

  • Supply Voltage: 4.5V–5.5V

  • Operating Temperature: -55℃ to +125℃

  • Speed Regulation: Linear

  • Protection Functions:

    • Overload protection

    • Anti-lock (stall) protection

    • Constant current drive

  • Special Technology: JYKJ full-condition safe startup


5. Delivery Stage & Customer Feedback

  • Delivery: ESD-safe packaging, batch traceable

  • Lead Time: 14 days

  • Customer Feedback:

    The JY02A controller provided excellent startup consistency and very low acoustic noise, making it ideal for our commercial HVAC systems.

The customer confirmed long-term cooperation for future projects.