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논문 기본 정보

자료유형
학술대회자료
저자정보
M. Zehelein (University of Stuttgart) J. Portik (University of Stuttgart) M. Nitzsche (University of Stuttgart) P. Marx (University of Stuttgart) J. Roth-Stielow (University of Stuttgart)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2019-ECCE Asia
발행연도
2019.5
수록면
2,217 - 2,223 (7page)

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초록· 키워드

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Wide-bandgap transistors are operated at much higher switching transition voltage slopes and current slopes compared to silicon power transistors. For the design of new power electronic devices compactness is a main focus, which increases parasitic capacitances of the device. This trend leads to significantly higher common and differential mode distortions especially at high frequency ranges. To overcome this drawback, efficient filter techniques for these distortions are necessary.
This paper focuses on the leakage current reduction in four switch buck-boost converter topologies by synchronizing the switching transitions of the buck and boost stage to achieve a leakage current cancellation. By designing two similar leakage current paths and using destructive interference of two inversely excited leakage currents, the overall leakage current at the heat sink of the device is decreased. This study investigates the effectiveness of the leakage current reduction depending on different operating points for buck and boost operation.

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Abstract
I. INTRODUCTION
II. FOUR-SWITCH BUCK-BOOST CONVERTER
III. LEAKAGE CURRENT PATH
IV. APPROACH
V. EXPERIMENTAL RESULTS
VI. CONCLUSION AND OUTLINE
REFERENCES

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