TY - GEN
T1 - Duty Cycle based Condition Monitoring of MOSFETs in Digitally-Controlled DC-DC Converters
AU - Peng, Yingzhou
AU - Wang, Huai
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/3
Y1 - 2020/3
N2 - In this work, a duty cycle ratio-based condition monitoring method is proposed for the MOSFETs in digitally-controlled DC-DC power converters. It is demonstrated and proved with an example of buck converter. Theoretically, the average value of duty cycle ratio is positively related to the on-state resistance of MOSFET. Therefore, the proposed method enables the condition monitoring of the degradation of MOSFET. The impact of other factors, such as input voltage, temperature, loading and other components in buck converter, on the duty cycle ratio is also investigated. Experimental tests are performed in different situations. Both theoretical and experimental results indicate the feasibility of the proposed method for DC-DC converter applications. Compare to the conventional methods, the proposed method features non-invasive, without additional hardware and easily implementing.
AB - In this work, a duty cycle ratio-based condition monitoring method is proposed for the MOSFETs in digitally-controlled DC-DC power converters. It is demonstrated and proved with an example of buck converter. Theoretically, the average value of duty cycle ratio is positively related to the on-state resistance of MOSFET. Therefore, the proposed method enables the condition monitoring of the degradation of MOSFET. The impact of other factors, such as input voltage, temperature, loading and other components in buck converter, on the duty cycle ratio is also investigated. Experimental tests are performed in different situations. Both theoretical and experimental results indicate the feasibility of the proposed method for DC-DC converter applications. Compare to the conventional methods, the proposed method features non-invasive, without additional hardware and easily implementing.
KW - Condition Monitoring
KW - DC-DC Power Converter
KW - On-line
KW - Power MOSFET
UR - http://www.scopus.com/inward/record.url?scp=85087766598&partnerID=8YFLogxK
U2 - 10.1109/APEC39645.2020.9124403
DO - 10.1109/APEC39645.2020.9124403
M3 - Conference contribution
AN - SCOPUS:85087766598
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 364
EP - 369
BT - APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020
Y2 - 15 March 2020 through 19 March 2020
ER -