Better Sound,
Smaller Speakers

Webinar available on demand

Material optimization for increased performance and battery life

Although electric motors receive the headlines for soft magnetic, current, steady progress in the miniaturization of electronics combined with increasing demand for multimedia technology requires increasingly smaller micro speakers with higher audio output. The goal of improving “decibel (dB) density” adds additional functionalities in consumer electronic devices, but one of the key constraints in miniaturization is the magnetic circuit of the device. The paramount challenge to miniaturization is the ability to improve the performance of the dynamic drivers in micro speakers. 
Carpenter Technology hosted a webinar to discuss the principal approach to miniaturization and high magnetic induction materials, such as Hiperco® 50, to increase saturation flux density. Used as a drop-in replacement sound pressure levels increase over a decibel, with greater opportunity through holistic design optimization. Compared to similar output levels from different materials, Hiperco also helps extend battery life and reduce the volume of electromagnets in state-of-the-art wireless headphones. 

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About Carpenter Electrification

Carpenter Electrification brings material expertise to the challenges of next-generation motors and electronics. We offer alloys to support the most demanding design requirements and lamination stack production for tight tolerances to realize the full performance benefits of high magnetic induction alloys. Carpenter Electrification is committed to the future of electric vehicles and collaborates with customers on development, production and scaling of newly designed stator and rotor stacks for power dense motors.

Hiperco soft magnetic alloy white paper

Whitepaper Available:
Ordered Growth in Hiperco® 50 Alloys

Increasing demand for tighter tolerance laminations to meet challenging design criteria led to the investigation of a net dimensional changes in Hiperco 50 alloys (49Fe-49Co-2V) after post-fabrication annealing. This white paper evaluates the root cause and explores a special process designed to improve the dimensional change characteristics of Hiperco 50 alloys.

Download the White Paper

Related Resources

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