Title :
SPICE modeling of power PiN diode using asymptotic waveform evaluation
Author :
Strollo, Antonio G M
Author_Institution :
Dept. of Electron. Eng., Naples Univ., Italy
Abstract :
A new power diode model is developed and implemented as a PSPICE subcircuit. The starting point of the new model is a continued-fraction expression in the Laplace domain of the carrier distribution in the base region. By truncating the continued-fraction expansion, lumped RC representations of the base region are easily obtained. In the time domain, this approach approximates of the exact behavior of the carrier distribution with a sum of decaying exponentials, obtained by matching the moments of the exact carrier distribution. The proposed model takes into account emitter recombination in the highly doped end regions, conductivity modulation in the base and the moving-boundaries effect during reverse-recovery, showing good convergence properties and fast simulation times. Comparisons between the results of the SPICE models and numerical device simulations are presented
Keywords :
SPICE; circuit analysis computing; p-i-n diodes; power engineering computing; power semiconductor diodes; semiconductor device models; software packages; time-domain analysis; Laplace domain; PSpice software; asymptotic waveform evaluation; base region; carrier distribution; computer simulation; conductivity modulation; continued-fraction expression; convergence properties; decaying exponentials; emitter recombination; highly doped end regions; lumped RC representation; moving-boundaries effect; power pin diode model; reverse-recovery; time domain; Circuit simulation; Conductivity; Convergence; Laplace equations; Numerical simulation; Power engineering and energy; Power system modeling; SPICE; Semiconductor diodes; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548557
