Research on Charging and Testing Characteristics and Methods of Large Capacity Multi-Layer Ceramic Capacitors
The arrival of the era of intelligent driving has led to tremendou s development of new energy vehicles,and the market demand for large capacity,high-voltage resistance,and multi-layer ceramic capacitors is increasing day by day.This type of capacitor belongs to Class Ⅱ ceramic capacitors,which have the characteristics of high dielectric constant and long charging and discharging time.Testing and sorting of this type of capacitor requires higher requirements.To meet the testing and sorting needs of this type of capacitor,and to provide guidance for R&D personnel in related industries,the dielectric characteristics,absorption characteristics,charge discharge characteristics,bimodal phenomenon,and online testing of capacitors were analyzed.Through relevant product testing,it has been found that under rated voltage and current conditions,changing parameters such as charging time,charging frequency,and vacancy interval can extend the charging time and vacancy time after charging,and reducing the leakage current.
large capacityhigh-voltage resistancemulti-layer ceramic capacitorsdielectric constantabsorbed currentbimodal phenomenon