Brushless DC motors (BLDC) or electronically commutated motors (ECMs) have become more relevant in today’s environment where efficiency and minimizing power losses are a key objective of designs in all markets. Brushless DC motors provide significant improvements in efficiency and mechanical reliability, and offer superb torque-to-weight properties.

Allegro MicroSystems plays a key role in enabling brushless DC motor adoption by simplifying the complexities of electronic commutation. Allegro offers a range of products targeted at BLDC applications which span the industrial, consumer, and automotive markets. Depending on the needs of a given application, Allegro products can offer integrated features such as:

• Self-commutating six-step / trapezoidal state machine with Hall sensor inputs
• Sensorless and sinusoidal commutation
• Back EMF sensing capability
• Automotive grade ICs with diagnostics and robust protection features