An 80.4% peak power efficiency adaptive supply class H power amplifier for audio applications

• Main Authors: Zhang, Xiang, Siek, Liter
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Electrical and electronic engineering; Audio Power Amplifier; Class H Amplifier
• Online Access: https://hdl.handle.net/10356/152136
• Institution: Nanyang Technological University

This paper presents a novel class H power amplifier aiming for audio applications on battery-powered electronic devices. The power supply of the amplifier is adaptively adjusted to track the instantaneous input signal amplitude for higher power efficiency. By embedding audio input signal amplitude i...