All items tagged with audio amplifiers (137)
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.
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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.
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MIPI Alliance Announces New Soundwire Device Class for Audio (SDCA) Specification
July 10, 2024 by Cristina Costa

MIPI Alliance Announces New Soundwire Device Class for Audio (SDCA) Specification

The MIPI Alliance, the international organization that develops interface specifications for mobile and mobile-influenced industries, announced the release of MIPI SoundWire Device Class for Audio (MIPI SDCA) v1.0. The new specification enables standardized mechanisms to interact with host-controllable audio devices, such as microphones and amplifiers, connected via a MIPI SoundWire interface. This significantly simplifies and streamlines platform development.
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Interview: An Afternoon with Robert Munnig Schmidt
June 12, 2024 by Jan Didden

Interview: An Afternoon with Robert Munnig Schmidt

Robert Munnig Schmidt is intrinsically connected with advanced motion systems and motional feedback applications. He is now retired from his own consultancy business, following an outstanding career that includes key R&D positions at Philips, being part of the ASML founding team, and teaching Mechatronic System Design at the Delft University of Technology. In this interview, Schmidt revisits the theory and practice of motional feedback, silicon wafer steppers, voice coils, Class-D amplifiers, and much more.
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AudioControl Reinvents Distributed Audio with New Dual-Mode GaN-Based Amplifier Design
June 12, 2024 by audioXpress Staff

AudioControl Reinvents Distributed Audio with New Dual-Mode GaN-Based Amplifier Design

AudioControl has announced the introduction of three highly versatile CM Series amplifiers using GaN technology and a new proprietary circuit design for compatibility with both 70-volt and 4/8-Ohm loudspeakers (Dual Mode). These new CM Series amplifiers offer DSP control, matrixing capabilities, Dante digital audio networking and all the critical features integrators must have to satisfy every imaginable application including superior audio performance and build quality.
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Orchard Audio Releases New 500W GaN Monoblock Audio Amplifier
June 4, 2024 by Joao Martins

Orchard Audio Releases New 500W GaN Monoblock Audio Amplifier

Following the launch of its Starkrimson 150W monoblock, Orchard Audio now announced its new state-of-the-art, gallium nitride (GaN) 500W monoblock audio amplifier. The Starkrimson Mono Ultra Premium represents the culmination of Orchard Audio's - and its founder's Leonid (Leo) Ayzenshtat - relentless pursuit of new approaches for audio. This meticulously crafted monoblock amplifier leverages GaN technology and unique Class-D design to deliver unparalleled power, detail, and clarity.
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Infineon Announces Next Generation CoolGaN Transistor Families
May 31, 2024 by Joao Martins

Infineon Announces Next Generation CoolGaN Transistor Families

Infineon Technologies announced two new generations of high voltage (HV) and medium voltage (MV) CoolGaN devices which now enable Gallium Nitride (GaN) to be used in voltage classes from 40V to 700V in a broader array of applications that help drive digitalization and decarbonization. These two product families, now expanded with the portfolio that resulted from the GaN Systems acquisition, are manufactured on high performance 8-inch in-house foundry processes in Kulim (Malaysia) and Villach (Austria).
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New EPC High-Power GaN-Based Class-D Audio Reference Design Now Available
May 17, 2024 by Joao Martins

New EPC High-Power GaN-Based Class-D Audio Reference Design Now Available

Encouraging developers to design high-performance Class-D audio amplifiers leveraging GaN FETs, EPC has launched the new EPC9192 reference design enabling high power and high efficiency Class-D audio amplifiers in a modular design that is ideal for customization. The EPC9192 showcases the high performance capabilities of EPC's 200V, EPC2307 eGaN FETs in a ground-referenced, split dual supply Single-Ended (SE) design, delivering an impressive 700W per channel into a 4Ω load.
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Input-Output Impedance Matching – Or Not
April 18, 2024 by Jan Didden

Input-Output Impedance Matching – Or Not

In analog audio, you often must connect a source to a “receiver” unit. Pre-amp to power amp, phono preamp to an active crossover, the crossover to the power amp, that sort of stuff. Each of these units has an input impedance and an output impedance spec. I often get questions like: “My power amp has 20kΩ input impedance, my preamp has 100Ω output impedance, and maximum load is specified as 10kΩ. Will that work together or will I break something?”. Jan Didden explains all about Input-Output Impedance Matching.
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Goodix Technology Launches Next Generation Smart Amplifier for Mobile Applications
April 8, 2024 by audioXpress Staff

Goodix Technology Launches Next Generation Smart Amplifier for Mobile Applications

Goodix Technology launched a new generation smart amplifier targeting mobile audio designs. The new TFA9865 device leverages a proprietary, fully digital architecture and advanced manufacturing processes to improve audio performance. With extremely compact dimensions of just 2.2x2.2mm², the TFA9865 audio amplifier establishes a benchmark for the audio industry, offering higher power efficiency, and enhanced sound volume with reduced noise.
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