GaN技术杂谈

在评估新型半导体技术时，专业音频行业传统上优先考虑可靠性、可预测的生命周期以及长期产品稳定性。因此，新兴器件平台通常只有在其电气性能和稳健性得到充分验证后才会被引入。

在这样的背景下，Innosonix 首席执行官兼联合创始人 Markus Bätz 早在 2020 年就决定从硅功率器件转向氮化镓（GaN）——比 GaN 在专业音频领域被广泛讨论还要早数年。

基于氮化镓器件的音频放大器 - 音频功放的最新技术

世界改变性创新，例如1970年发布的首台录像机（VCR）到全球首台可无线充电的笔记本电脑，都是在CES这个全球创新聚集地宣布的。

We are quite excited about this year’s CES being held in Las Vegas from January 9th through the 12th.  Our excitement is grounded in the fact that we will be showing the power of GaN technology in two locations – within the AirFuel™ Alliance booth at the Sands Hotel and in our hospitality suite at the Venetian hotel!

Class-D audio amplifiers have traditionally been looked down upon by audiophiles, and in most cases, understandably so. Switching transistors for Class-D amplifiers have never had the right combination of performance parameters to produce an amplifier with sufficient open-loop linearity to satisfy the most critical listeners. This restricted the classical analog modulator Class-D systems to lower-power, lower-quality sound systems.

To accomplish the required headline marketing THD+N performance targets, Class-D amplifiers have had to resort to using large amounts of feedback to compensate for their poor open-loop performance. By definition, large amounts of feedback introduce transient intermodulation distortion (TIM), which introduces a ‘harshness’ that hides the warm subtleties and color of the music that were intended for the listening experience.