Some electromagnetic aspects of coreless PCB transformers

S. Y R Hui; S. C. Tang; H. Chung

doi:10.1109/PESC.1999.785613

Some electromagnetic aspects of coreless PCB transformers

S. Y R Hui
, S. C. Tang
, H. Chung

City University of Hong Kong

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

4 Citations (Scopus)

Abstract

In this paper, some EMI aspects of using coreless PCB transformers are addressed. Based on the antenna theory, the radiated power of a coreless PCB transformer is estimated and found to be negligible. The electromagnetic field plot of a power electronic circuit using a gate drive circuit isolated with coreless PCB transformer has been recorded. The major radiated EMI source in the frequency range of 30MHz to 300MHz is found to be the copper tracks of the power circuit, where switching transients occur, rather than the coreless PCB transformer. Coreless PCB transformers essentially operate at relatively low frequency (8MHz in this case) by near-field magnetic coupling. Experimental results have confirmed that the application of coreless PCB transformer in gate drive circuit for power electronic circuit will not impose any serious EMI problem on the power electronic circuit.

Original language	English
Title of host publication	PESC Record - IEEE Annual Power Electronics Specialists Conference
Pages	868-873
Volume	2
DOIs	https://doi.org/10.1109/PESC.1999.785613
Publication status	Published - 1999
Event	Proceedings of the 1999 30th Annual IEEE Power Electronics Specialists Conference (PESC'99) - Charleston, United States Duration: 27 Jun 1999 → 1 Jul 1999 https://ieeexplore.ieee.org/xpl/conhome/6364/proceeding

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Name
Volume	2
ISSN (Print)	0275-9306

Conference

Conference	Proceedings of the 1999 30th Annual IEEE Power Electronics Specialists Conference (PESC'99)
Place	United States
City	Charleston
Period	27/06/99 → 1/07/99
Internet address	https://ieeexplore.ieee.org/xpl/conhome/6364/proceeding

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title = "Some electromagnetic aspects of coreless PCB transformers",

abstract = "In this paper, some EMI aspects of using coreless PCB transformers are addressed. Based on the antenna theory, the radiated power of a coreless PCB transformer is estimated and found to be negligible. The electromagnetic field plot of a power electronic circuit using a gate drive circuit isolated with coreless PCB transformer has been recorded. The major radiated EMI source in the frequency range of 30MHz to 300MHz is found to be the copper tracks of the power circuit, where switching transients occur, rather than the coreless PCB transformer. Coreless PCB transformers essentially operate at relatively low frequency (8MHz in this case) by near-field magnetic coupling. Experimental results have confirmed that the application of coreless PCB transformer in gate drive circuit for power electronic circuit will not impose any serious EMI problem on the power electronic circuit.",

author = "Hui, \{S. Y R\} and Tang, \{S. C.\} and H. Chung",

year = "1999",

doi = "10.1109/PESC.1999.785613",

language = "English",

isbn = "780354214",

volume = "2",

pages = "868--873",

booktitle = "PESC Record - IEEE Annual Power Electronics Specialists Conference",

note = "Proceedings of the 1999 30th Annual IEEE Power Electronics Specialists Conference (PESC'99) ; Conference date: 27-06-1999 Through 01-07-1999",

url = "https://ieeexplore.ieee.org/xpl/conhome/6364/proceeding",

}

Hui, SYR, Tang, SC & Chung, H 1999, Some electromagnetic aspects of coreless PCB transformers. in PESC Record - IEEE Annual Power Electronics Specialists Conference. vol. 2, pp. 868-873, Proceedings of the 1999 30th Annual IEEE Power Electronics Specialists Conference (PESC'99), Charleston, South Carolina, United States, 27/06/99. https://doi.org/10.1109/PESC.1999.785613

TY - GEN

T1 - Some electromagnetic aspects of coreless PCB transformers

AU - Hui, S. Y R

AU - Tang, S. C.

AU - Chung, H.

PY - 1999

Y1 - 1999

N2 - In this paper, some EMI aspects of using coreless PCB transformers are addressed. Based on the antenna theory, the radiated power of a coreless PCB transformer is estimated and found to be negligible. The electromagnetic field plot of a power electronic circuit using a gate drive circuit isolated with coreless PCB transformer has been recorded. The major radiated EMI source in the frequency range of 30MHz to 300MHz is found to be the copper tracks of the power circuit, where switching transients occur, rather than the coreless PCB transformer. Coreless PCB transformers essentially operate at relatively low frequency (8MHz in this case) by near-field magnetic coupling. Experimental results have confirmed that the application of coreless PCB transformer in gate drive circuit for power electronic circuit will not impose any serious EMI problem on the power electronic circuit.

AB - In this paper, some EMI aspects of using coreless PCB transformers are addressed. Based on the antenna theory, the radiated power of a coreless PCB transformer is estimated and found to be negligible. The electromagnetic field plot of a power electronic circuit using a gate drive circuit isolated with coreless PCB transformer has been recorded. The major radiated EMI source in the frequency range of 30MHz to 300MHz is found to be the copper tracks of the power circuit, where switching transients occur, rather than the coreless PCB transformer. Coreless PCB transformers essentially operate at relatively low frequency (8MHz in this case) by near-field magnetic coupling. Experimental results have confirmed that the application of coreless PCB transformer in gate drive circuit for power electronic circuit will not impose any serious EMI problem on the power electronic circuit.

UR - https://www.scopus.com/pages/publications/0033346172

UR - https://www.scopus.com/pages/publications/0033346172#tab=impact

U2 - 10.1109/PESC.1999.785613

DO - 10.1109/PESC.1999.785613

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 780354214

VL - 2

SP - 868

EP - 873

BT - PESC Record - IEEE Annual Power Electronics Specialists Conference

T2 - Proceedings of the 1999 30th Annual IEEE Power Electronics Specialists Conference (PESC'99)

Y2 - 27 June 1999 through 1 July 1999

ER -

Some electromagnetic aspects of coreless PCB transformers

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