⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种单片集成的五电平D类音频功率放大器，能够提供2×70W的输出功率。该设计旨在减小输出LC滤波器尺寸并降低功率损耗，特别关注电池供电应用中的近空闲功率损耗问题。
Thomas Holm Hansen1, Allan Nogueras Nielsen1,2, Hans Hasselby-Andersen1 Merus Audio, Herlev, Denmark, Now at Knowles Corporation, Roskilde, Denmark 1 2 The consumer electronics trends of miniaturization and portability have been pushing the integrated Class-D audio power amplifier (PA) market for a number of years. This creates opportunities for new players in the market, through reduction of output LC filter size and reduction of power losses. In batterypowered applications, near-idle power loss is of particular interest, since the audio PA will typically run almost idle. The flying capacitor (FC) 3-level half-bridge[1] (Fig. 5.3.1) is ideal for a product for the established Class-D audio PA market, since it allows 3-level PWM to be created from a single power-supply rail, using a capacitor as an extra supply element. In a bridge-tied load (BTL) configuration, a total of five PWM levels can
Mikkel Høyerby1, Jørgen Kragh Jakobsen1, Jesper Midtgaard1,