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자료유형
학술저널
저자정보
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전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.2 No.3
발행연도
2002.7
수록면
171 - 180 (10page)

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초록· 키워드

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New 42-volt automotive electrical systems can provide significant improvements m vehicle performance and fuel economy It is crucial to provide protection against load dump and other overvoltage transients in 42-volt systems. While advanced active control techniques are generally considered capable of providing such protection, the use of passive transient voltage suppression (TVS) devices as a secondary or supplementary protection means can significantly improve design flexibility and reduce system costs This paper examines the needs and options for passive TVS devices for 42-volt applications The imitations of the commonly available automotive TVS devices, such as Zener diodes and metal oxide varistors (MOV), are analyzed and reviewed A new TVS device concept, based on power MOSFET and thm-film polycrystalline Silicon back-to-back diode technology, is proposed to provide a better control on the clamp voltage and meet the new 42-volt specification Both experimental and modeling results are presented Issues related to the temperature dependence and energy absorbing capability of the new TVS device are discussed in detaIl. It is concluded that the proposed TVS device provides a cost-effective solution for load dump protection m 42-volt systems.

목차

ABSTRACT

1.Introduction

2.Requirements for 4-Volt TVS Devices

3.Evaluation of Exisiting TVS Technologies

4.A New MOS-TVS Device Concept

5.Experimental Results and Discussion

6.Conclusion

Acknowledgements

References

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