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JPE, Vol. 17, No. 2, March 2017
The Role of a Wiring Model in Switching Cell Transients: the PiN Diode Turn-off Case
Atef Jedidi, Hatem Garrab, Herve Morel, and Kamel Besbes
Area Devices and Components
Abstract Power converter design requires simulation accuracy. In addition to the requirement of accurate models of power semiconductor devices, this paper highlights the role of considering a very good description of the converter circuit layout for an accurate simulation of its electrical behavior. This paper considers a simple experimental circuit including one switching cell where a MOSFET transistor controls the diode under test. The turn-off transients of the diode are captured, over which the circuit wiring has a major influence. This paper investigates the necessity for accurate modeling of the experimental test circuit wiring and the MOSFET transistor. It shows that a simple wiring inductance as the circuit wiring representation is insufficient. An adequate model and identification of the model parameters are then discussed. Results are validated through experimental and simulation results.
Keyword Finite element method model,Modeling,PIN diode,Simulation,Wiring parasitic inductances
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