TY - GEN
T1 - Physics-of-failure-based method of reliability modeling for led switch driver with failure correlation
AU - Li, Lexiao
AU - Zhang, Wenjing
AU - Sun, Bo
N1 - Publisher Copyright:
© 2017 Taylor & Francis Group, London.
PY - 2017
Y1 - 2017
N2 - Now with the application of high power LED more and more widely, the reliability of LED has gradually attracted more and more attentions. As an important part of the LED lighting system, the LED driver has a significant impact on the reliability of the system. In this paper, Physics-of-Failure-based (POF) method of reliability modeling was developed for LED driver by considering the failure correlation. Firstly, the failure modes of LED driver are analyzed and the corresponding failure physical models are found. Secondly, the relationship between the failure modes is characterized by taking the advantage of Copula in describing correlation. Then, a uniform failure physical model is obtained, and a reliability model of LED driver is established. Finally, a case study is illustrated the effective of the proposed model. The final result shows that the proposed model which considered the failure correlation can be more accurate in predicting the reliability of LED drives relative to the conventional method of considering single dimension failure mode.
AB - Now with the application of high power LED more and more widely, the reliability of LED has gradually attracted more and more attentions. As an important part of the LED lighting system, the LED driver has a significant impact on the reliability of the system. In this paper, Physics-of-Failure-based (POF) method of reliability modeling was developed for LED driver by considering the failure correlation. Firstly, the failure modes of LED driver are analyzed and the corresponding failure physical models are found. Secondly, the relationship between the failure modes is characterized by taking the advantage of Copula in describing correlation. Then, a uniform failure physical model is obtained, and a reliability model of LED driver is established. Finally, a case study is illustrated the effective of the proposed model. The final result shows that the proposed model which considered the failure correlation can be more accurate in predicting the reliability of LED drives relative to the conventional method of considering single dimension failure mode.
UR - https://www.scopus.com/pages/publications/85061346889
U2 - 10.1201/9781315210469-279
DO - 10.1201/9781315210469-279
M3 - 会议稿件
AN - SCOPUS:85061346889
SN - 9781138629370
T3 - Safety and Reliability - Theory and Applications - Proceedings of the 27th European Safety and Reliability Conference, ESREL 2017
SP - 2211
EP - 2216
BT - Safety and Reliability – Theory and Applications - Proceedings of the 27th European Safety and Reliability Conference, ESREL 2017
A2 - Cepin, Marko
A2 - Briš, Radim
PB - CRC Press/Balkema
T2 - 27th European Safety and Reliability Conference, ESREL 2017
Y2 - 18 June 2017 through 22 June 2017
ER -