Study on frequency characteristic of Al electrolytic capacitor
WEI Cun-cai
DONG Hai-qiang
Abstract：This paper studied the change law of the isotonic series-wound capacitor,the isotonic series-wound resistance,impedance and the ullage tgδ of the Al electrolytic capacitor as frequencies of AC power.It was proved that there was a superior diversity on the value of above factors between practical Al electrolytic capacitor and the ideal one at different frequencies.The main factor affecting the frequency characteristic were given as the following:the coefficient of corrosion of the Al foil surfaces the figure of the hole of scorrosion,and the character of the oxide film on the surface of the anode and cathode;the fabric of the unimpregnated liner in the capacitor,as well as the resistance and steeping of the working electrolyte and the construction of the capacitor.
Keywords：Alelectrolytic capacitorfrequency characteristicresearch experiment
Publication Date：2000-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 506-508 )