Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester

Andreas S. Petersen; Niels E. Iversen; Arnold Knott

Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester

Andreas S. Petersen, Niels E. Iversen, Arnold Knott

Technical University of Denmark

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Switch-mode power amplifiers have become the conventional choice for audio amplification due to their very high efficiency and negligible THD+N performance. This paper proposes a new method to determine the reverse recovery loss theoretically. The Spice model from the manufacture is simulated with a Double pulse tester in LTspice. Mapping the reverse recovery behaviour for different currents and time periods allows it to be fitted to a model. The fitted model is used to estimate the reverse recovery loss in a Class-D audio amplifier power stage. The conventional model shows a 16 times larger loss compared to the fitted model for a worst case comparison.

Original language	English
Title of host publication	Proceedings of 149^th Audio Engineering Society Convention 2020
Publisher	Audio Engineering Society
Publication date	2020
Publication status	Published - 2020
Event	149th Audio Engineering Society Convention - Virtual event Duration: 21 Oct 2020 → 24 Oct 2020 Conference number: 149

Conference

Conference	149th Audio Engineering Society Convention
Number	149
Location	Virtual event
Period	21/10/2020 → 24/10/2020

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title = "Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester",

abstract = "Switch-mode power amplifiers have become the conventional choice for audio amplification due to their very high efficiency and negligible THD+N performance. This paper proposes a new method to determine the reverse recovery loss theoretically. The Spice model from the manufacture is simulated with a Double pulse tester in LTspice. Mapping the reverse recovery behaviour for different currents and time periods allows it to be fitted to a model. The fitted model is used to estimate the reverse recovery loss in a Class-D audio amplifier power stage. The conventional model shows a 16 times larger loss compared to the fitted model for a worst case comparison.",

author = "Petersen, {Andreas S.} and Iversen, {Niels E.} and Arnold Knott",

year = "2020",

language = "English",

booktitle = "Proceedings of 149th Audio Engineering Society Convention 2020",

publisher = "Audio Engineering Society",

note = "149th Audio Engineering Society Convention, AES 2020 ; Conference date: 21-10-2020 Through 24-10-2020",

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Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester. / Petersen, Andreas S.; Iversen, Niels E.; Knott, Arnold.

Proceedings of 149^th Audio Engineering Society Convention 2020. Audio Engineering Society, 2020.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester

AU - Petersen, Andreas S.

AU - Iversen, Niels E.

AU - Knott, Arnold

N1 - Conference code: 149

PY - 2020

Y1 - 2020

N2 - Switch-mode power amplifiers have become the conventional choice for audio amplification due to their very high efficiency and negligible THD+N performance. This paper proposes a new method to determine the reverse recovery loss theoretically. The Spice model from the manufacture is simulated with a Double pulse tester in LTspice. Mapping the reverse recovery behaviour for different currents and time periods allows it to be fitted to a model. The fitted model is used to estimate the reverse recovery loss in a Class-D audio amplifier power stage. The conventional model shows a 16 times larger loss compared to the fitted model for a worst case comparison.

AB - Switch-mode power amplifiers have become the conventional choice for audio amplification due to their very high efficiency and negligible THD+N performance. This paper proposes a new method to determine the reverse recovery loss theoretically. The Spice model from the manufacture is simulated with a Double pulse tester in LTspice. Mapping the reverse recovery behaviour for different currents and time periods allows it to be fitted to a model. The fitted model is used to estimate the reverse recovery loss in a Class-D audio amplifier power stage. The conventional model shows a 16 times larger loss compared to the fitted model for a worst case comparison.

M3 - Article in proceedings

BT - Proceedings of 149th Audio Engineering Society Convention 2020

PB - Audio Engineering Society

T2 - 149th Audio Engineering Society Convention

Y2 - 21 October 2020 through 24 October 2020

ER -

Mapping of theory of reverse recovery losses to the duty cycle distribution of audio signals with a double pulse tester

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