Brushless DC Motors (BLDC)
Overview: BLDC motors are synchronous motors powered by DC electricity via an inverter, which generates AC signals to drive the motor. They use electronic commutation instead of brushes and a mechanical commutator.
Key Features:
- High Efficiency – No brush friction losses
- Long Life – No brush wear
- Low Noise – Smooth operation
- High Power Density – Compact design for high output
- Precise Control – Ideal for servo and variable speed applications
Common Applications:
Drones, HVAC blowers, electric vehicles, CNC machines, robotics, hard disk drives, and industrial automation.
Control Requirements:
Requires an electronic speed controller (ESC) or motor driver that uses Hall effect sensors or sensorless back-EMF detection for rotor position feedback.
Note: Proper phase sequencing and timing are critical for optimal performance and efficiency.