| Abstract |
The calculations required to design low loss energy-recovering snubbers and to generate personalized switching device macromodels are tie consuming and error prone tasks, so an automated approach is very desirable. In particular, snubber inverter design (using either single capacitor or three-pole configuration) requires a trade-off between critical circuit parameters. The subsequent inverter SPICE simulation demands a model for the switching device. If a black-box device model, such as the GTO macromodel is used, only the externally observed device behavior, presented in the manufacturer's datasheet is necessary; the calculations required are long, but they can be set up in a well defined, step by step non recursive sequence. DyDD integrates all these design procedures in a single CAD interactive application, using the Macintosh Graphic User Interface (GUI). SPICE compatible circuit files are produced at user's request, thus eliminating transcription errors. |
