Our three-phase BLDC motor control solution uses an automotive-grade chip as the main controller and serves as a rapid prototyping and demonstration platform for three-phase BLDC motors in 24V/48V systems, such as automotive cooling water pumps, cooling fans, HVAC blowers and e-bike drive motors.
Key Points
- Electrical parameters: 13-48V, motors up to 1.5KW
- Operating ambient temperature: -40 to 125℃
- Supports BLDC/PMSM
- Supports single-shunt FOC and dual-shunt FOC
- Supports sensored and sensorless trapezoidal control
- Supports speed control via CAN/LIN/PWM/UART
- All major components are automotive grade
- FOC drive saves 5%-20% more power than trapezoidal drive
- Fast acceleration and deceleration, ultra-low noise
- Reliable high-speed start-up and zero-speed start-up
- Fast start-up algorithm optimized for fans running with or against the airflow
- Protection mechanisms for overvoltage, undervoltage, overcurrent, stall, phase loss and free running
Solution Overview
The motor control hardware consists of power conversion, a pre-driver, a MOS bridge and operational amplifiers. Motor operation can be controlled in three ways: PWM signal, CAN signal and LIN signal.
Recommended MCU
- S32K14x series
- S12ZVM series (alternative)
- KEA series (alternative)
Core Components
- MCU main controller: NXP, GD, etc., full part number available on request
- CAN transceiver: NXP, full part number available on request
- MOSFET: ON, full part number available on request
- MOS pre-driver: MPS, full part number available on request
- Operational amplifier: ON, full part number available on request
- DC-DC: MPS, full part number available on request
Applications
Automotive applications such as HVAC blowers, engine cooling fans, wiper systems, fuel pumps and water pumps
Reference Design AMC-48x50-24
- Supports BLDC/PMSM;
Functional Block Diagram
