FAQs

A brushed motor uses brushes and a mechanical commutator to switch current, while a brushless motor uses electronic commutation with a controller.

Lower upfront cost, no controller required, simple design and faster development, resistant to EMI or signal interference.

Lower efficiency, brushes wear out, shorter lifespan.

Short duty cycles, backup or emergency systems, compact setups without room for electronics, cost-sensitive applications.

More efficient, less maintenance, better speed and torque control, easier to integrate diagnostic capabilities.

Higher costs, requires a controller, more complex system integration.

Electronic commutation eliminates brush friction, improved energy conversion, placement of windings on the stationary stator allows for more winding area and improved heat transfer to the environment.

A solid-state relay is an electronic switching device that controls power without moving mechanical contacts.

An SSR uses semiconductor components to switch electrical loads on and off in response to a control signal.

A power distribution unit (PDU) is a device that manages, protects, and routes electrical power throughout a platform, safely distributing power from a source to multiple systems or loads.

Our power distribution units are highly configurable, enabling customers to tailor power management, protection, load distribution, and system interfaces to meet the unique requirements of their aircraft or platform.

Primary power refers to the main electrical power source that supplies a system or vehicle, while secondary power supports specific functions, provides power conversion, or serves as a backup when needed.

AMETEK PDS designs power distribution products tailored to specific aerospace and defense platform requirements.