Comments on Redox potentials by equilibration, by W. G. Breck

Breck (1972) has proposed a new approach for determining the redox level (Eh) in aerated natural waters and has described an electrode arrangement which, supposedly, is capable of accurately measuring Eh in such waters

Modeling and Evaluation of Diode Reverse Recovery in Discrete-Transition Simulators

Abstract-- Discrete transition simulators usually do not apply full physical models of devices and as a result, they are incapable of showing parasitic processes such as diode reverse recovery. The main objective of this study was to develop a behavioral model of diode reverse recovery that can be implemented in these simulators. The proposed model is based on the lumped charge control concept. It can be easily extracted from a simple measurement and it does not require heavy computational resources. The model was tested within the PSIM platform and was verified experimentally for various turn-off conditions. Model application is exemplified by investigating a lossless snubber of a three-phase buck-type rectifier. Index Terms — Power semiconductor diodes, modeling, Spice, snubbers, discrete event simulation