@inproceedings{ec311de1a31242a3b5d30a0c4b7f2e2a,
title = "Design of a fully differential power output stage for a class D audio amplifier using a single-ended power supply",
abstract = "This paper presents a full-bridge discrete power output stage for a Class D audio amplifier using a single-ended power supply. The circuit receives a digital control signal with 5 V of amplitude and it generates a floating differential output voltage up to 20 V of amplitude from a single 20 V power supply voltage. Using as control signal a pulse density modulation (PDM) wave generated by an optimized 3rd order continuous-time (CT) sigma delta modulator (ΣΔM), the system achieves a signal-to-noise-plus-distortion ratio (SNDR) of 83.1 dB, total harmonic distortion (THD) of -89 dB and a power efficiency of 92%, while delivering 11 W over an 8-Ω load with a signal bandwidth of 20 kHz and a sampling frequency of 1.28 MHz.",
keywords = "Class D Audio Amplifier, Gate Driver, Output Stage",
author = "Leit{\~a}o, {Pedro V.} and Melo, {Jo{\~a}o L. A. de} and Nuno Paulino and {De Melo}, {Jo{\~a}o L A}",
year = "2013",
doi = "10.1007/978-3-642-37291-9_61",
language = "English",
isbn = "978-3-642-37290-2",
series = "IFIP Advances in Information and Communication Technology",
publisher = "Springer Verlag",
pages = "565--572",
editor = "Camarinha-Matos, {L. M.} and S. Tomic and P. Graca",
booktitle = "Technological Innovation for the Internet of Things",
address = "Germany",
note = "4th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2013 ; Conference date: 15-04-2013 Through 17-04-2013",
}