Hysteresis-Current-Controlled Class-D Amplifier with Active Current Sensing Techniques

Author

Chen, Jiann-Jong ; Hwang, Yuh-Shyan ; Lee, Wen-Ta ; Lai, Chien-Tsung ; Su, Juing-Huei

Author_Institution

Dept. of Electron. Eng., Nat. Taipei Univ. of Technol., Taipei

Volume

4

fYear

2006

fDate

25-28 June 2006

Firstpage

2737

Lastpage

2740

Abstract

A hysteresis-current-controlled (HCC) class-D amplifier with active current sensing techniques is presented in this paper. The active current sensing techniques are used to sense and control inductor current. The class-D amplifier has been fabricated in 3.3-V, 0.35-mum double-poly quadruple-metal CMOS technology. The proposed class-D amplifier is suitable for current-mode and voltage-mode applications.

Keywords

CMOS integrated circuits; amplifiers; electric current control; electric current measurement; hysteresis; inductors; active current sensing techniques; current-mode applications; double-poly quadruple-metal CMOS technology; hysteresis-current-controlled class-D amplifier; inductor current; size 0.35 mum; voltage 3.3 V; voltage-mode applications; Active inductors; CMOS technology; Circuits; Feeds; Frequency; Hysteresis; Stress control; Switches; Variable structure systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems Proceedings, 2006 International Conference on

Conference_Location

Guilin

Print_ISBN

0-7803-9584-0

Electronic_ISBN

0-7803-9585-9

Type

conf

DOI

10.1109/ICCCAS.2006.285235

Filename

4064482