Title :
Class D audio power amplifier with fine hysteresis control
Author :
Jung, Sang-Hwa ; Kim, Nam-In ; Cho, Gyu-Hyeong
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
fDate :
10/24/2002 12:00:00 AM
Abstract :
A new simple and efficient control method for a class D audio power amplifier is presented. The new fine hysteresis control method can control the switching frequency freely and guarantees stability for any load condition without having any outside compensation circuit at all.
Keywords :
audio-frequency amplifiers; bang-bang control; feedback amplifiers; frequency control; hysteresis; power amplifiers; bang-bang control; class D audio power amplifier; feedback loop; fine hysteresis control; inductor current sensing; load condition stability; switching frequency; switching power amplifiers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020936
