An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction

2014 ◽  
Author(s):  
Shih-Hsiung Chien ◽  
Li-Te Wu ◽  
Ssu-Ying Chen ◽  
Ren-Dau Jan ◽  
Min-Yung Shih ◽  
...  
Keyword(s):  
Output Power ◽  
Open Loop ◽  
Audio Amplifier ◽  
Class D ◽  
Low Distortion ◽  
Emi Reduction

A 1 W 104 dB SNR Filter-Less Fully-Digital Open-Loop Class D Audio Amplifier With EMI Reduction

2012 ◽  
Vol 47 (3) ◽  
pp. 686-698 ◽  
Author(s):  
Federico Guanziroli ◽  
Rossella Bassoli ◽  
Carlo Crippa ◽  
Daniele Devecchi ◽  
Germano Nicollini
Keyword(s):  
Open Loop ◽  
Audio Amplifier ◽  
Class D ◽  
Emi Reduction

A 2.4 mA Quiescent Current, 1 W Output Power Class-D Audio Amplifier With Feed-Forward PWM-Intermodulated-Distortion Reduction

2016 ◽  
Vol 51 (6) ◽  
pp. 1436-1445 ◽  
Author(s):  
Tai-Haur Kuo ◽  
Shih-Hsiung Chien ◽  
Jyun-Jia Huang ◽  
Yi-Wen Chen ◽  
Yu-An Lee
Keyword(s):  
Output Power ◽  
Feed Forward ◽  
Audio Amplifier ◽  
Class D ◽  
Quiescent Current ◽  
Distortion Reduction ◽  
Power Class

A Low-Distortion High-Efficiency Class-D Audio Amplifier Based on Sliding Mode Control

2016 ◽  
Vol 63 (8) ◽  
pp. 713-717 ◽  
Author(s):  
Ahmed I. Hussein ◽  
Ahmed Nader Mohieldin ◽  
Faisal Hussien ◽  
Ahmed Eladawy
Keyword(s):  
Sliding Mode Control ◽  
High Efficiency ◽  
Sliding Mode ◽  
Mode Control ◽  
Audio Amplifier ◽  
Class D ◽  
Low Distortion

scholarly journals Perbandingan Efisiensi Daya Penguat Audio Kelas AB dengan Penguat Audio Kelas D untuk Keperluan Sound System Lapangan

2018 ◽  
Vol 10 (2) ◽  
pp. 54-58
Author(s):  
Muhamad Kharis ◽  
Dhidik Prastiyanto ◽  
Suryono Suryono
Keyword(s):  
Output Power ◽  
Power Efficiency ◽  
Input Power ◽  
Sound System ◽  
Class Ab ◽  
Audio Amplifiers ◽  
Class D Amplifier ◽  
Audio Amplifier ◽  
Class D ◽  
Field Sound

Class AB audio amplifiers are commonly used but the efficiency is 50%. While the efficiency of class D audio amplifiers is 90% but are rarely used. The purpose of this research is to know how much the power efficiency of field sound system between 1000 watts class AB amplifier and 900 watts class D amplifier. This study is a comparative study that compares different variables with the same sample. The results of power efficiency are obtained from the percentage comparison between the output power and the input power of each audio amplifier. The power efficiency of class D audio amplifiers with IRS D900 type larger than class AB audio amplifiers with Apex B500 type. The efficiency value of class D audio amplifiers at the highest output power reaches 87% while class AB audio amplifiers are only 73%.

A -121.5-dB THD Class-D Audio Amplifier With 49-dB LC Filter Nonlinearity Suppression

2021 ◽  
pp. 1-1
Author(s):  
Huajun Zhang ◽  
Marco Berkhout ◽  
Kofi A. A. Makinwa ◽  
Qinwen Fan
Keyword(s):  
Audio Amplifier ◽  
Class D ◽  
Lc Filter
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