DocumentCode
1024913
Title
Use of ESR for deterioration diagnosis of electrolytic capacitor
Author
Harada, Koosuke ; Katsuki, Akihiko ; Fujiwara, Masayuki
Author_Institution
Dept. of Electron., Kyushu Univ., Fukuoka, Japan
Volume
8
Issue
4
fYear
1993
fDate
10/1/1993 12:00:00 AM
Firstpage
355
Lastpage
361
Abstract
A new deterioration diagnosis method for the electrolytic capacitor is proposed for a forward-type converter and a buck-boost converter. It was observed that the ESR (equivalent series resistance) of the electrolytic capacitor increases as it deteriorates, and the knowledge that ripple varies proportionally to the ESR increase was used. With this method, the electrolytic capacitor life-cycle aging rate can be projected for the active circuit over the system life. This approach to deterioration is valid for any load condition, no matter whether the circuit has feedback control or not
Keywords
ageing; electrolytic capacitors; power convertors; active circuit; buck-boost converter; deterioration diagnosis; electrolytic capacitor; equivalent series resistance; feedback control; forward-type converter; life-cycle aging rate; ripple; Anodes; Capacitance; Cathodes; Electrodes; Paramagnetic resonance; Particle separators; Power supplies; Preventive maintenance; Regulators; Switched capacitor circuits;
fLanguage
English
Journal_Title
Power Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0885-8993
Type
jour
DOI
10.1109/63.261004
Filename
261004
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