Avoiding high inrush current peaks for reducing conducted emission

Felix Müllner; Ernst Bodenstorfer; Stefan Cecil; Andrea Hofer

Avoiding high inrush current peaks for reducing conducted emission

Titel in Übersetzung: Vermeidung hoher Einschaltstromspitzen zur Reduzierung leitungsgebundener Emissionen

Felix Müllner
, Ernst Bodenstorfer
, Stefan Cecil
, Andrea Hofer

Publikation: Beitrag in Buch oder Tagungsband › Beitrag in Tagungsband mit Posterpräsentation

43 Downloads (Pure)

Abstract

The Competence Unit High-Performance Vision Systems at the AIT Austrian Institute of Technology is developing a 3D scan system including photometric stereo imaging. This system requires special light sources, which are driven with up to 20 A current pulses, to illuminate the object from different angles.
Corresponding high current levels are required for 300 μs during a period of 10 ms, which are leading to high inrush current peaks at conventional LED drivers. These current peaks often lead to problems in the conducted emission spectrum, which requires well matched electromagnetic inference (EMI) filters on the input side of the LED controller.
During a master thesis conducted at the AIT, a LED controller was developed, which buffers the energy required for high current pulses. The poster is presenting some significant improvements in the conducted emission spectrum, caused by the circuit concept of this LED controller.

Titel in Übersetzung	Vermeidung hoher Einschaltstromspitzen zur Reduzierung leitungsgebundener Emissionen
Originalsprache	Englisch
Titel	20. EMV-Fachtagung
Band	110
Publikationsstatus	Veröffentlicht - 27 Sept. 2023
Veranstaltung	20. EMV-Fachtagung - Seibersdorf Labor GmbH, Seibersdorf, Österreich Dauer: 27 Sept. 2023 → 28 Sept. 2023

Konferenz

Konferenz	20. EMV-Fachtagung
Land/Gebiet	Österreich
Stadt	Seibersdorf
Zeitraum	27/09/23 → 28/09/23

Research Field

High-Performance Vision Systems

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Poster_LED-Controller_AIT_FinalAndere Versionen, 314 KB

LED-Controller for Inline Computational Imaging
Müllner, F., 2022
Publikation: Abschlussarbeit › Masterarbeit

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abstract = "The Competence Unit High-Performance Vision Systems at the AIT Austrian Institute of Technology is developing a 3D scan system including photometric stereo imaging. This system requires special light sources, which are driven with up to 20 A current pulses, to illuminate the object from different angles. Corresponding high current levels are required for 300 μs during a period of 10 ms, which are leading to high inrush current peaks at conventional LED drivers. These current peaks often lead to problems in the conducted emission spectrum, which requires well matched electromagnetic inference (EMI) filters on the input side of the LED controller. During a master thesis conducted at the AIT, a LED controller was developed, which buffers the energy required for high current pulses. The poster is presenting some significant improvements in the conducted emission spectrum, caused by the circuit concept of this LED controller. ",

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AU - Bodenstorfer, Ernst

AU - Cecil, Stefan

AU - Hofer, Andrea

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Y1 - 2023/9/27

N2 - The Competence Unit High-Performance Vision Systems at the AIT Austrian Institute of Technology is developing a 3D scan system including photometric stereo imaging. This system requires special light sources, which are driven with up to 20 A current pulses, to illuminate the object from different angles. Corresponding high current levels are required for 300 μs during a period of 10 ms, which are leading to high inrush current peaks at conventional LED drivers. These current peaks often lead to problems in the conducted emission spectrum, which requires well matched electromagnetic inference (EMI) filters on the input side of the LED controller. During a master thesis conducted at the AIT, a LED controller was developed, which buffers the energy required for high current pulses. The poster is presenting some significant improvements in the conducted emission spectrum, caused by the circuit concept of this LED controller.

AB - The Competence Unit High-Performance Vision Systems at the AIT Austrian Institute of Technology is developing a 3D scan system including photometric stereo imaging. This system requires special light sources, which are driven with up to 20 A current pulses, to illuminate the object from different angles. Corresponding high current levels are required for 300 μs during a period of 10 ms, which are leading to high inrush current peaks at conventional LED drivers. These current peaks often lead to problems in the conducted emission spectrum, which requires well matched electromagnetic inference (EMI) filters on the input side of the LED controller. During a master thesis conducted at the AIT, a LED controller was developed, which buffers the energy required for high current pulses. The poster is presenting some significant improvements in the conducted emission spectrum, caused by the circuit concept of this LED controller.

KW - LED-Controller

KW - inrush current peaks

KW - conducted emission

KW - EMC

KW - energy buffer

M3 - Conference Proceedings with Poster Presentation

SN - 978-3-903249-22-6

VL - 110

BT - 20. EMV-Fachtagung

T2 - 20. EMV-Fachtagung

Y2 - 27 September 2023 through 28 September 2023

ER -

Avoiding high inrush current peaks for reducing conducted emission

Abstract

Konferenz

Research Field

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LED-Controller for Inline Computational Imaging

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