Ultra-Low Idle Power Class-D Amplifier

Master thesis (2019)

Authors

M. Zhang Electrical Engineering, Mathematics and Computer Science

Contributors

Q. Fan Electronic Instrumentation - EEMCS (supervisor 1)
K.A.A. Makinwa Microelectronics (supervisor 2)
F. Sebastiano (OLD)Applied Quantum Architectures (supervisor 2)
Marco Berkhout NXP Semiconductors (supervisor 2)
Faculty
Electrical Engineering, Mathematics and Computer Science
Copyright: © 2019 Miao Zhang
Audio amplifier Class-D Idle power
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Published Date

07-10-2019

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

Class-D amplifiers are widely used in automotive audio systems because of their high efficiency. In modern car sound systems, multiple amplifiers are used to provide good audio effect. However, typical class-D amplifiers have a high idle-power, which can drain the battery quickly. To solve this problem, an ultra-low idle power class-D amplifier is proposed in this thesis. The simulation results show that this amplifier can achieve very low idle power while maintaining competitive linearity and efficiency.