The J3 SCR Model Applied to Resonant Converter Simulation

The J3 SCR model is a continuous topology computer model for the SCR. Its circuit analog and Parameter estimation procedure are uniformly applicable to popular computer aided design and analysis programs such as SPICE2 and SCEPTRE. The circuit analog is based on the intrinsic three PN junction structure of the SCR. The parameter estimation procedure requires only manufacturer\´s specification sheet quantities as a data base. This uniform model, denoted the J3 SCR model is shown to be a useful design aid through computer simulation of fault transients which may occur in a "Schwartz" converter. The transients simulated would not be observable without use of a highly accurate continuous topology non-linear SCR model such as the J3 SCR model.