Abstract The ion source is the key to NBI. It very sensitive overvoltage and overcurrent, breakdown frequently occurs between acceleration grid. core snubber most suitable surge suppression device achieve DC fault protection. This paper introduces some basic concepts, comparing snubber’s material properties important parameters. also concept of an equivalent circuit model for snubber, including...

Despite the very different underlying physics of organic photovoltaics (OPVs), inorganic p-n junction’s Shockley’s diode equation is often applied to describe current density–voltage (JV) curves OPVs. The model parameters, including saturation current, ideality factor, series, and parallel resistances, are usually extracted treated as constants in JV curve analyses. In this work, we develop a d...