Analysis and modeling of passive device degradation for a long-term electromagnetic emission study of a DC–DC converter. Issue 9 (August 2015)

• Record Type: Journal Article
• Authors: Huang, H.; Boyer, A.; Ben Dhia, S.
• Is Part Of: Microelectronics and reliability. Volume 55:Issue 9/10(2015)
• Page Start: 2061
• Page End: 2066
• Publication Date: 2015-08
• Subjects: Counterfeit detection -- Electromagnetic emission -- Integrated circuit; Electronic apparatus and appliances -- Reliability -- Periodicals; Miniature electronic equipment -- Periodicals; Appareils électroniques -- Fiabilité -- Périodiques; Équipement électronique miniaturisé -- Périodiques; Electronic apparatus and appliances -- Reliability; Miniature electronic equipment; Periodicals; 621.3815
• DOI: 10.1016/j.microrel.2015.06.058
• Languages: English
• ISSNs: 0026-2714

Abstract

Abstract: Past works showed that the degradation of the passive components caused by aging could induce failures of electronic system, including a harmful evolution of electromagnetic compatibility. This paper presents the impact of the accelerated thermal aging on the electromagnetic emission (EME) of a buck DC–DC converter. The experimental analysis indicates that the aging degradation of several passive components (electrolytic capacitor and powder iron inductor) is the main source of EME evolution. Based on experimental measurement and physical analysis, the empirical degradation models of related passive devices are proposed. The overall objective of this study is to predict the electromagnetic emission evolution of a buck DC–DC converter under a thermal aging, by using these passive device degradation models. Highlights: Modeling of electromagnetic emission level of converters based on the degradation analysis of passive devices Study of the thermal accelerated aging impact on the electromagnetic emission of a buck DC–DC converter Evolution of conducted emission is explained by the degradation of filtering capacitors and inductors. Degradation analysis and modeling of aluminum electrolytic capacitor and powder iron inductor