GermanyThe article discusses the increasing use of gallium nitride (GaN) transistors in audio amplifier designs, particularly in 'Class D' amplifiers. GaN-based amplifiers offer advantages such as higher switching frequencies (up to over 1 MHz), reduced phase distortion, smaller size, and improved efficiency compared to traditional MOSFET-based systems. Companies like Infineon, Efficient Power Conversion (EPC), Class D Audio, and others are developing GaN-powered amplifiers with power outputs ranging from 150W to 1500W. Automotive applications include Porsche’s planned integration of GaN-based subwoofer amplifiers in vehicles starting in 2027. STMicroelectronics has developed integrated multichip modules with GaN transistors but currently offers them only with MOSFETs, despite their potential for higher efficiency.
Bias read (Center): The article presents factual information about technological advancements in audio amplifier design using GaN transistors. It does not take a political stance, nor does it frame the technology in a biased manner. The content is focused on technical specifications, industry developments, and product-
