2017 28TH IRISH SIGNALS AND SYSTEMS CONFERENCE (ISSC)

Maeve Duffy

2017 28TH IRISH SIGNALS AND SYSTEMS CONFERENCE (ISSC)

Electrical & Electronic Engineering

Research output: Chapter in Book or Conference Publication/Proceeding › Conference Publication › peer-review

Abstract

This paper investigates different methods for improving the power efficiency of Class-D audio amplifier output stages. A standard half-bridge design is analysed and the effects of using Gallium Nitride (GaN) and Silicon Carbide (SiC) devices are considered. A new 2-phase interleaved output stage is proposed, and the advantages of this are discussed. The effect of the output low-pass filter parameters on power loss is also analysed. Simulation results of power efficiency of all of the proposed designs are presented. It is concluded that there is significant room to improve on the standard half-bridge Class-D amplifier design.

Original language	English (Ireland)
Title of host publication	Maximising the Efficiency of a Class-D Audio Amplifier Output Stage
Publication status	Published - 1 Jan 2017

Authors (Note for portal: view the doc link for the full list of authors)

Authors
Bakker, R,Duffy, M,

Cite this

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abstract = "This paper investigates different methods for improving the power efficiency of Class-D audio amplifier output stages. A standard half-bridge design is analysed and the effects of using Gallium Nitride (GaN) and Silicon Carbide (SiC) devices are considered. A new 2-phase interleaved output stage is proposed, and the advantages of this are discussed. The effect of the output low-pass filter parameters on power loss is also analysed. Simulation results of power efficiency of all of the proposed designs are presented. It is concluded that there is significant room to improve on the standard half-bridge Class-D amplifier design.",

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N2 - This paper investigates different methods for improving the power efficiency of Class-D audio amplifier output stages. A standard half-bridge design is analysed and the effects of using Gallium Nitride (GaN) and Silicon Carbide (SiC) devices are considered. A new 2-phase interleaved output stage is proposed, and the advantages of this are discussed. The effect of the output low-pass filter parameters on power loss is also analysed. Simulation results of power efficiency of all of the proposed designs are presented. It is concluded that there is significant room to improve on the standard half-bridge Class-D amplifier design.

AB - This paper investigates different methods for improving the power efficiency of Class-D audio amplifier output stages. A standard half-bridge design is analysed and the effects of using Gallium Nitride (GaN) and Silicon Carbide (SiC) devices are considered. A new 2-phase interleaved output stage is proposed, and the advantages of this are discussed. The effect of the output low-pass filter parameters on power loss is also analysed. Simulation results of power efficiency of all of the proposed designs are presented. It is concluded that there is significant room to improve on the standard half-bridge Class-D amplifier design.

M3 - Conference Publication

BT - Maximising the Efficiency of a Class-D Audio Amplifier Output Stage

ER -

2017 28TH IRISH SIGNALS AND SYSTEMS CONFERENCE (ISSC)

Abstract

Authors (Note for portal: view the doc link for the full list of authors)

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Cite this