Performance of high energy density ceramic capacitor

Ceramic dielectric material is characterized of high dielectric constant and high working electric field. According to the excellent performance of the ceramic, this paper theoretically analyzes the capacitors made from such materials, which can work in oscillated discharging circuit in the frequency from some kHz to several MHz with slow-aging．The reliability of high energy density multilayer ceramic capacitor （MLC）has been studied by the 1μF/500V species with DC voltage withstanding 750V 1min test and repeated chargedischarge in the frequency of 100Hz. The results show that under the operating voltage of 500V(the energy density reachs 720J/L), the MLC has long lifetime over 107 shot times and large output peak current of 320A in the frequency of 50kHz, and steady electric perfo