Low-Molecular-Weight Soluble Polyaniline for Electrolytic Capacitor

Chromism and molecular weight of polyaniline derivatives

The striking solvatochromic shift observed in polyaniline derivatives correlates with two solvent polarity scales, donor number (DN) and hydrogen bond acceptor scale (Taft’s ˇ-scale). The large shift is caused by conformational changes in solution that result in dramatic differences in relative molecular weight values obtained by gel permeation chromatography (MWGPC) in different solvents. For ...

Accelerated Ageing of Aluminum Electrolytic Capacitor

Electrolytic capacitors are extensively used in filtering and power decoupling in power electronic converters. Low cost and high energy density of these capacitors make them popular. However, these capacitors degrade with age due to heating and evaporation of electrolyte. This process may take about 2 to 7 years depending on the application, ambient conditions and capacitor construction. This p...

Realization of a Smart Electrolytic Capacitor Circuit

Fault Prognostic Based on Ar-lssvr for Electrolytic Capacitor

Original scientific paper This paper puts forward a method of fault prognostic based on Autoregressive Support Vector Regression Method (AR-LSSVR) for electrolytic capacitor. Because the electrolytic capacitor is low in cost and large in volume, it is widely used in power electronic circuits. Firstly it introduces the basic model and the fault prognostic algorithm of the AR, LSSVM and AR-LSSVR....

Prognostic Modeling and Experimental Techniques for Electrolytic Capacitor Health Monitoring

Electrolytic capacitors are used in several applications ranging from power supplies on safety critical avionics equipment to power drivers for electromechanical actuators, and this makes them good candidates for prognostics and health management research. Prognostics provides a way to assess remaining useful life of components or systems based on their current state of health and their anticip...