Feature

How iron losses influence BLDC motor selection

When designing a miniature brushless DC (BLDC) motor, ensuring a compact footprint, with sufficient thermal regulation, is vital. This means that the design must minimise iron losses, a crucial factor that also limits a motor’s output. Here, Samuel Klein, Application Engineer at Portescap, explains the role of iron losses in BLDC motor design.

06/01/2023 16:50:39

To specify a motor optimised for an application’s speed and torque requirements, the motor manufacturer must work closely with the OEM, evaluating the implications of iron losses in order to create a design that limits their impact.

A key aspect of BLDC motor performance is efficiency – the ratio of the mechanical power output achieved from the electrical power input. An efficient motor design minimises heat generation, not only as this impacts power consumption, but also because it determines a motor’s physical space requirements.

A small footprint is key, but inefficient heat management can ultimately limit a motor’s speed and torque generation.

Read the full article in DPA's January issue

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.