Silicon Carbide as a Platform for Power Electronics
For high-voltage, high-current devices that can be operated at elevated temperatures, silicon carbide (SiC) has been the material of choice. Efforts to produce singlecrystal SiC began 30 years ago, but intrinsic problems in growing high-quality singlecrystal boules free of micropipe defects— micrometer-scale pinholes created by dislocations—have only recently been overcome. A series of developments in […]
Self-Discharge Characterization and Modeling of Electrochemical Capacitor Used for Power Electronics Applications
Self-Discharge Characterization and Modeling of Electrochemical Capacitor Used for Power Electronics Applications
Self-Discharge Characterization and Modeling of Electrochemical Capacitor Used for Power Electronics Applications
The self-discharge of an electrochemical capacitor, also referred to as a supercapacitor, is an important factor in determining the duration of maintaining stored energy, especially in low-duty-cycle applications. The study of self-discharge is conducted as follows: first, the self-discharge is characterized by measuring the decline of open-circuit voltage of the electrochemical capacitor. Second, the mechanisms […]