This paper presents the analysis and the experimental validation of a high-frequency Class D audio amplifier. The peculiarity is the use of a GaN-based monolithic full-bridge. On the one side, GaN technology allows achieving very high operating frequency with low power losses. On the other side, the monolithic nature of the power converter enables a strong reduction of device switching losses and electrical stresses. Moreover, by combing the GaN technology with the monolithic nature of the power converter in a truly innovative package, a notable improvement of the total harmonic distortion (THD) and of the sound quality can be obtained. The developed application is characterized by a 2.3MHz operating frequency.

A GaN-Based Monolithic Full-Bridge Class D Audio Amplifier

Cacciato M.;Rizzo S. A.;Scarcella G.;Scelba G.
2021-01-01

Abstract

This paper presents the analysis and the experimental validation of a high-frequency Class D audio amplifier. The peculiarity is the use of a GaN-based monolithic full-bridge. On the one side, GaN technology allows achieving very high operating frequency with low power losses. On the other side, the monolithic nature of the power converter enables a strong reduction of device switching losses and electrical stresses. Moreover, by combing the GaN technology with the monolithic nature of the power converter in a truly innovative package, a notable improvement of the total harmonic distortion (THD) and of the sound quality can be obtained. The developed application is characterized by a 2.3MHz operating frequency.
2021
Gallium Nitride (GaN)
High frequency power converter
Monolithic power integration
Parasitics
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/524427
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