EMC Investigation of a Very High Frequency Self-oscillating Resonant Power Converter

Jeppe Arnsdorf Pedersen; Arnold Knott; Michael A. E. Andersen

EMC Investigation of a Very High Frequency Self-oscillating Resonant Power Converter

Jeppe Arnsdorf Pedersen, Arnold Knott, Michael A. E. Andersen

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

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Abstract

This paper focuses on the electromagnetic compatibility (EMC) performance of a Very High Frequency (VHF) converter and how to lower the emissions. To test the EMC performance a VHF converter is implemented with a Class-E inverter and a Class-DE rectifier. The converter is designed to deliver 3 W to a 60 V LED, it has a switching frequency of 37 MHz and achieves an efficiency of 80%. For an LED driver to be used on the consumer market it has to fulfil the standard regarding EMC emissions. The conducted emission is often used as a reason to increase the switching frequency to the VHF range to avoid the regulations. This converter shows to be well below the levels for conducted emission even without filtering. For the
radiated emissions the converter is above the limits without input and output filters. Several designs with different ways to lower the emissions are implemented and the different layouts and filtering are compared and discussed.

Original language	English
Title of host publication	Proceedings of IEEE Applied Power Electronics Conference 2016
Publisher	IEEE
Publication date	2016
Pages	1541-1546
ISBN (Print)	978-1-4673-9550-2
Publication status	Published - 2016
Event	2016 IEEE Applied Power Electronics Conference and Exposition - Long Beach Convention & Entertainment Center, Long Beach, United States Duration: 20 Mar 2016 → 24 Mar 2016 Conference number: 31 https://apec-conf.org/uploads/documents/APEC-2016-FINAL-PROGRAM-BOOK.pdf

Conference

Conference	2016 IEEE Applied Power Electronics Conference and Exposition
Number	31
Location	Long Beach Convention & Entertainment Center
Country/Territory	United States
City	Long Beach
Period	20/03/2016 → 24/03/2016
Internet address	https://apec-conf.org/uploads/documents/APEC-2016-FINAL-PROGRAM-BOOK.pdf

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title = "EMC Investigation of a Very High Frequency Self-oscillating Resonant Power Converter",

abstract = "This paper focuses on the electromagnetic compatibility (EMC) performance of a Very High Frequency (VHF) converter and how to lower the emissions. To test the EMC performance a VHF converter is implemented with a Class-E inverter and a Class-DE rectifier. The converter is designed to deliver 3 W to a 60 V LED, it has a switching frequency of 37 MHz and achieves an efficiency of 80\%. For an LED driver to be used on the consumer market it has to fulfil the standard regarding EMC emissions. The conducted emission is often used as a reason to increase the switching frequency to the VHF range to avoid the regulations. This converter shows to be well below the levels for conducted emission even without filtering. For the radiated emissions the converter is above the limits without input and output filters. Several designs with different ways to lower the emissions are implemented and the different layouts and filtering are compared and discussed.",

author = "Pedersen, \{Jeppe Arnsdorf\} and Arnold Knott and Andersen, \{Michael A. E.\}",

year = "2016",

language = "English",

isbn = "978-1-4673-9550-2",

pages = "1541--1546",

booktitle = "Proceedings of IEEE Applied Power Electronics Conference 2016",

publisher = "IEEE",

address = "United States",

note = "2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016 ; Conference date: 20-03-2016 Through 24-03-2016",

url = "https://apec-conf.org/uploads/documents/APEC-2016-FINAL-PROGRAM-BOOK.pdf",

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AU - Andersen, Michael A. E.

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PY - 2016

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N2 - This paper focuses on the electromagnetic compatibility (EMC) performance of a Very High Frequency (VHF) converter and how to lower the emissions. To test the EMC performance a VHF converter is implemented with a Class-E inverter and a Class-DE rectifier. The converter is designed to deliver 3 W to a 60 V LED, it has a switching frequency of 37 MHz and achieves an efficiency of 80%. For an LED driver to be used on the consumer market it has to fulfil the standard regarding EMC emissions. The conducted emission is often used as a reason to increase the switching frequency to the VHF range to avoid the regulations. This converter shows to be well below the levels for conducted emission even without filtering. For the radiated emissions the converter is above the limits without input and output filters. Several designs with different ways to lower the emissions are implemented and the different layouts and filtering are compared and discussed.

AB - This paper focuses on the electromagnetic compatibility (EMC) performance of a Very High Frequency (VHF) converter and how to lower the emissions. To test the EMC performance a VHF converter is implemented with a Class-E inverter and a Class-DE rectifier. The converter is designed to deliver 3 W to a 60 V LED, it has a switching frequency of 37 MHz and achieves an efficiency of 80%. For an LED driver to be used on the consumer market it has to fulfil the standard regarding EMC emissions. The conducted emission is often used as a reason to increase the switching frequency to the VHF range to avoid the regulations. This converter shows to be well below the levels for conducted emission even without filtering. For the radiated emissions the converter is above the limits without input and output filters. Several designs with different ways to lower the emissions are implemented and the different layouts and filtering are compared and discussed.

M3 - Article in proceedings

SN - 978-1-4673-9550-2

SP - 1541

EP - 1546

BT - Proceedings of IEEE Applied Power Electronics Conference 2016

PB - IEEE

T2 - 2016 IEEE Applied Power Electronics Conference and Exposition

Y2 - 20 March 2016 through 24 March 2016

ER -

EMC Investigation of a Very High Frequency Self-oscillating Resonant Power Converter

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