Design and Analysis of Digital Audio Amplifier Using ZVS PWM Converter
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 22_Publication in policy or professional journal
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 218-221 |
| Journal / Publication | Proceedings - IEEE International Symposium on Circuits and Systems |
| Volume | 5 |
| Publication status | Published - 1999 |
Conference
| Title | 1999 IEEE International Symposium on Circuits and Systems (ISCAS '99) |
|---|---|
| Location | Renaissance Orlando Resort |
| Place | United States |
| City | Orlando |
| Period | 30 May - 2 June 1999 |
Link(s)
Abstract
This paper presents a simple methodology to convert a hard-switched pulse-width-modulated (PWM) H-bridge converter used in classical digital audio amplifiers into a zero-voltage-switching (ZVS) converter. ZVS is simply achieved by connecting an L-C series branch across the converter output. ZVS occurs during the dead time interval of the PWM signals, giving an effective improvement in the conversion efficiency, output frequency spectrum, and total harmonic distortion (THD). Simplified design procedures are given for choosing the value of the components. A prototype having output power of 20 W and with switching frequency of 705.6 kHz has been built and the experimental results are presented.
Citation Format(s)
Design and Analysis of Digital Audio Amplifier Using ZVS PWM Converter. / Lau, W.H.; Chung, Henry S. H.; Wu, C. M. et al.
In: Proceedings - IEEE International Symposium on Circuits and Systems, Vol. 5, 1999, p. 218-221.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 22_Publication in policy or professional journal
