All items tagged with efficiency (13)

New Fractal Class-D Audio Amplifier Technology Maximizes Battery Life in TWS Earbuds

August 5, 2024 by Joao Martins

New Fractal Class-D Audio Amplifier Technology Maximizes Battery Life in TWS Earbuds

Typical Class-D amplifiers are generally tuned to give the highest efficiency when outputting large power levels but have a rather low efficiency at lower power levels. Using a new type of bridge configuration, the patented Fractal Class-D audio amplifier improves the efficiency at lower power levels while maximizing efficiency over a wide range of power levels. Available from SiliconIntervention, this technology was developed by Martin Mallinson, the company's founder and chief scientific officer.

SiliconIntervention: Low-Level Efficiency Improvements in Class-D

July 18, 2024 by Jan Didden

SiliconIntervention: Low-Level Efficiency Improvements in Class-D

Driven by the need to maximize battery life in portable devices, Class-D efficiency at low output levels is receiving greater attention. This is particularly important to achieve longer battery life in designs such as true wireless earbuds. Power optimized amplification is precisely the goal for Multilevel Class-D, and now there's also Fractal Class-D, a new technology developed by SiliconIntervention, a Canadian company formed in 2019 as the result of the pioneering research and development of its founder Martin Mallinson, the former Chief Scientist at ESS Technology.

Monolithic Power Systems Acquires Axign

February 7, 2024 by Joao Martins

Monolithic Power Systems Acquires Axign

Monolithic Power Systems (MPS), a global company specializing in high-performance power solutions announced the acquisition of Axign B.V., the Netherlands-based fabless semiconductor startup that specializes in programmable multicore DSP (digital signal processors) and developed the innovative post-filter feedback loop technology for Class-D amplifiers with balanced feedback from the loudspeaker. An exciting development for the small Dutch company and for the audio industry.

July 31, 2023 by Joao Martins

USound Receives Additional Growth Investment Supporting MEMS Speakers Ramp-Up

USound has confirmed that it has received a €10 million Euros minority growth investment supporting product ramp-up for its various MEMS speaker models and accelerating production and design-ins of next-generation true wireless earbuds and hearables. The announcement reflects the company's momentum as first product implementations are now reaching the market, enabling the fast-growing MEMS loudspeaker company to gain further recognition from consumers.

GaN Systems and Axign Unveil 1000W Class-D Heatsinkless Audio Amplifier Design

January 6, 2023 by Joao Martins

GaN Systems and Axign Unveil 1000W Class-D Heatsinkless Audio Amplifier Design

GaN power semiconductors pioneer GaN Systems has once again teamed up with Dutch company Axign to unveil an even more powerful, 1000W Class-D GaN audio amplifier board at CES 2023. The new reference design merges best-in-class technologies from GaN Systems and Axign to enable unique audio systems that are smaller, more efficient, and offer better audio quality. The design is ideal for automotive, professional, and prosumer audio applications.

Nuvoton ICs with Integrated Klippel Controlled Sound - New Possibilities for Speaker Design

September 22, 2022 by Mike Klasco

Nuvoton ICs with Integrated Klippel Controlled Sound - New Possibilities for Speaker Design

What more could speaker system designers want? How about not just to protect the speaker from overload, but enable the speaker to play louder with reduced bass distortion? Mike Klasco writes about his experience working with Nuvoton smart amps with integrated Klippel Controlled Sound (KCS) technology. Now in mass production and offering new possibilities for speaker design. First product examples are now available in the market.

Magnachip Introduces High-Performance Synchronous Boost Converter for Battery-Powered Speakers

March 15, 2022 by Cristina Costa

Magnachip Introduces High-Performance Synchronous Boost Converter for Battery-Powered Speakers

Magnachip Semiconductor Corporation has released a synchronous boost converter with a new architecture of high-side and low-side switches that achieves a high efficiency to support for a variety of applications, including Bluetooth speakers and other battery-operated devices. The new synchronous boost converter is equipped with a fast transient response to reduce output voltage fluctuations in a short response time for stable power supply, making it ideally suited for devices which can exhibit significant current variations.

Maxim Integrated Introduces Highest Efficiency and Smallest Multi-Phase AI Power Chipsets

August 19, 2021 by audioXpress Staff

Maxim Integrated Introduces Highest Efficiency and Smallest Multi-Phase AI Power Chipsets

Designers of high-performance, high-power artificial intelligence (AI) systems can now achieve highest efficiency (to reduce power cost and heat) and smallest total solution size with the MAX16602 AI cores dual-output voltage regulator and the MAX20790 smart power-stage IC. The MAX16602 and MAX20790 chipset achieves greater than 95 percent efficiency and supports designs from 60A to 800A or more, delivering best-in-class transient performance with 40 percent reduced output capacitance.

Voice Coil April 2020 Now Available and Keeping the Loudspeaker Industry Together

March 27, 2020 by audioXpress Staff

Voice Coil April 2020 Now Available and Keeping the Loudspeaker Industry Together

As scheduled, Voice Coil April 2020 is now available in print and digital, connecting loudspeaker professionals in these challenging times. This month, Mike Klasco (Menlo Scientific) discusses Mobile Audio and Microspeakers, which is also the topic of this month's updated directory. James Croft reviews a patent from Harman, while Vance Dickason characterizes the new 18NDLX Imperium woofer from Fane and the CDX14-3040 compression driver from Celestion. Download now and start reading!

Klippel Controlled Sound (KCS) - Controlled Sound Technology for Nonlinear Compensation of Loudspeakers

August 3, 2019 by Vance Dickason

Klippel Controlled Sound (KCS) - Controlled Sound Technology for Nonlinear Compensation of Loudspeakers

Following extensive research, Klippel GmbH has announced its new Klippel Controlled Sound (KCS) technology. This is an integrated approach that leverages the company's software and hardware tools for development, measurement and evaluation of new-generation loudspeaker systems, providing mechanical and thermal protection, automatic system alignment, active compensation of transducer nonlinearities and stabilization of the voice coil rest position. In other words, enabling research towards the speakers of the future.

«
1
2
»