지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.5
- 수록면
- 960 - 965 (6page)
이용수
초록· 키워드
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This paper addresses radiated EMI issues in Coreless PCB step-down transformers used for power transfer applications. In case of SMPS circuits, since the waveforms are not sinusoidal in nature, most of the radiated emissions are not only from fundamental frequency component but also from harmonic contents. According to antenna theory, radiated EMI for three different power transformers of different radii were estimated for fundamental frequency of 2㎒ to 300㎒. The computations were made for both sinusoidal and square wave excitations and at a load power of 20W. The calculated radiated power obtained for simulated waveforms and for practical measured current waveforms are in good agreement with each other up to certain bandwidth. These computational results confirm that radiated power can be reduced in three layered 2:1 transformer compared to two layered 2:1 transformer. Also the radiated emissions are negligible in case of sinusoidal excitations compared to square wave excitations.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. MULTILAYERED CORELESS PCB STEP-DOWN POWER TRANSFORMERS
Ⅲ. RADIATED EMI OF CORELESS PCB STEP-DOWN POWER TRANSFORMERS
Ⅳ. ESTIMATION OF RADIATED EMI IN TRANSFORMERS FOR DIFFERENT EXCITATIONS
Ⅴ. CONCLUSIONS
ACKNOWLEDGMENT
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2013-560-000299994