Design of Digital Robust Controller for a Class-D Amplifier Using A2DOF

被引：0

作者：

Kaku, Kikon ^{[1
]}

Higuchi, Kohji ^{[1
]}

Jirasereeamornkul, Kamon ^{[2
]}

机构：

[1] Univ Electrocommun, 1-5-1 Chofugaoka, Chofu, Tokyo 1828585, Japan

[2] KMUTT, 126 Prache Uthit Rd Bangmond Tungkru, Bangkok 10140, Thailand

来源：

2016 INTERNATIONAL ELECTRICAL ENGINEERING CONGRESS, IEECON2016 | 2016年

关键词：

class-D amplifier; digital robust control; A2DOF; DSP;

D O I：

10.1016/j.procs.2016.05.035

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In recent years, it is desired that the bandwidth of a class-D amplifier is widened using sampling frequencies as low as possible. For example, it is expected in the application of the power supply of a low frequency immunity test, or an audio power amplifier, or the power amplifier of vibration generator. In this paper, it is shown that the bandwidth of the class-D amplifier can be widened to 20[kHz] by an A2DOF (Approximate 2-Degree-Of-Freedom) digital controller with 500[kHz] sampling frequencies. The controller is implemented by a DSP (digital signal processor). It is shown from experiments that 20[kHz] bandwidth can be maintained even if load changes. (C) 2016 The Authors. Published by Elsevier B.V.

引用

页码：140 / 143

页数：4

共 50 条

[21] Non-Linearity Analysis for Digital Class-D RF Power Amplifier
Luo, Wei
Yin, Yun
Xu, Hongtao
2018 14TH IEEE INTERNATIONAL CONFERENCE ON SOLID-STATE AND INTEGRATED CIRCUIT TECHNOLOGY (ICSICT), 2018, : 783 - 785
[22] A digital input class-D audio amplifier with sixth-order PWM
骆树萌
李冬梅
Journal of Semiconductors, 2013, (11) : 103 - 108
[23] A digital input class-D audio amplifier with sixth-order PWM
骆树萌
李冬梅
Journal of Semiconductors, 2013, 34 (11) : 103 - 108
[24] A digital input class-D audio amplifier with sixth-order PWM
Luo Shumeng
Li Dongmei
JOURNAL OF SEMICONDUCTORS, 2013, 34 (11)
[25] Low distortion digital pulse width modulation for audio class-D amplifier
Yoneya, A
Watanabe, A
IEEE INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES 2004 (ISCIT 2004), PROCEEDINGS, VOLS 1 AND 2: SMART INFO-MEDIA SYSTEMS, 2004, : 515 - 518
[26] A Class-D Amplifier With Pulse Code Modulated (PCM) Digital Input for Digital Hearing Aid
Noh, Jinho
Lee, Dongjun
Jo, Jun-Gi
Yoo, Changsik
IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2013, 48 (02) : 465 - 472
[27] Low-power design for DC current transformer using class-D compensating amplifier
Veinovic, Slavko
Ponjavic, Milan
Milic, Sasa
Djuric, Radivoje
IET CIRCUITS DEVICES & SYSTEMS, 2018, 12 (03) : 215 - 220
[28] A Class-D Amplifier with Digital PWM and Digital Loop-Filter using a Mixed-Signal Feedback Loop
Auer, Mario
Karaca, Timucin
IEEE 45TH EUROPEAN SOLID STATE CIRCUITS CONFERENCE (ESSCIRC 2019), 2019, : 153 - +
[29] A 95-dBA DR Digital Audio Class-D Amplifier Using a Calibrated Digital-to-Pulse Converter
Chang, Chih-Min
Wu, Jieh-Tsorng
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2017, 64 (05) : 1106 - 1117
[30] Approximate 2-Degree-of-Freedom Control of a Class-D Amplifier Using FPGA
Hanabusa, Kazuki
Higuchi, Kohji
Sato, Tomoaki
Jirasereeamornkul, Kamon
2016 13TH INTERNATIONAL CONFERENCE ON ELECTRICAL ENGINEERING/ELECTRONICS, COMPUTER, TELECOMMUNICATIONS AND INFORMATION TECHNOLOGY (ECTI-CON), 2016,

← 1 2 3 4 5 →