Jump to first page The Bipolar Junction Transistor A Bond Graph Model Michael C. Schweisguth, Graduate Student François E. Cellier, Professor Dept. of.

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Presentation transcript:

Jump to first page The Bipolar Junction Transistor A Bond Graph Model Michael C. Schweisguth, Graduate Student François E. Cellier, Professor Dept. of Electrical and Computer Engineering University of Arizona, Tucson, Arizona, U.S.A.

Jump to first page Contents n The Circuit Model n Translation to a Bond Graph n Reformulation of the Bond Graph n Simulation Results n Physicality of the Model n Conclusions

Jump to first page The BJT Circuit Model

Jump to first page The Junction Diode Model

Jump to first page Translation to Bond Graph

Jump to first page Reformulation of Bond Graph

Jump to first page Simulation Results time V in 50200

Jump to first page Physicality of the Model

Jump to first page Conclusions n The Bond Graph has helped identify a potential problem with the physicality of the BJT circuit model n Manipulating the Bond Graph helped identify the true power flows through the device n The Bond Graph helped to find the equations that prove that no power is ever generated by the current sources (which, in fact, are nothing but nonlinear resistors) n The Bond Graph methodology ensured that the model representing the BJT is physically sound.