POWER DIGITAL-TO-ANALOG CONVERSION USING PULSE-WIDTH MODULATION AND DIGITAL SIGNAL-PROCESSING

Authors
HIORNS RE SANDLER MB
Citation
Re. Hiorns et Mb. Sandler, POWER DIGITAL-TO-ANALOG CONVERSION USING PULSE-WIDTH MODULATION AND DIGITAL SIGNAL-PROCESSING, IEE proceedings. Part G. Circuits, devices and systems, 140(5), 1993, pp. 329-338
Citations number
20
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEE proceedings. Part G. Circuits, devices and systems → ACNP
ISSN journal
09563768
Volume
140
Issue
5
Year of publication
1993
Pages
329 - 338
Database
ISI
SICI code
0956-3768(1993)140:5<329:PDCUPM>2.0.ZU;2-I
Abstract
The combination of digital pulse width modulation and oversampled nois e shaping is proposed for high quality digital to analogue conversion. High resolution, linearity and efficiency is achieved by converting d irectly to analogue audio, using class D amplification. Digital signal processing is used to reduce quantisation noise and harmonic distorti on at signal frequencies up to 20 kHz. High efficiency is achieved by using MOSFET power switching devices and a pulse repetition rate of 35 2.8 kHz.