Thermal Power Diode


Model Description This model is a thermal power diode model using the lumped-charge technique. The model generates the dynamic device temperature and thermal characteristics from internal power dissipation. The model also includes voltage-dependent reverse recovery, forward recovery, conductivity modulation, emitter recombination and includes both high and low level injection. Only the capacitance model is taken from the standard SPICE diode model.
Model Parameters and Default Values QB=1e-8 (Coulombs)
Qp0=1e-16, qp0 > 1e-8
b=3, 
tau3=1u, 
EM=1e-10, 
T0=1u, 
m=0.5, 
VJ=0.7, 
fc=0.5, 
rs=.05, 
cjo=100p, 
PHIB=610.5, (Volts)
IB=1.11e3 (Amperes)
Tnom=27, 
Trs=0,

TEM=0.
Ttau= 0.66

Majority carrier base charge
Minority carrier base charge
Electron to hole mobility ratio
Carrier lifetime
Emitter rec. parameter
Transit time of electrons
Grading coefficient 
Built-in potential
Foward bias cap. factor
Series resistance
Zero bias capacitance
Voltage to deplete diode base
Rev. rec. current modulation
Default Device temperature
Temperature coefficient of series resistance
EM temperature coefficient
tau3 temperature coefficient 
Performance Level:  THERMAL
Quality Classification:  2B 
This model has been extensively used.
Parameter extraction is available.
Original Support for Model Development CDADIC 1997

Documentation
The thermal model is not documented. The original accurate diode model is documented in: C. L. Ma, P. O. Lauritzen, J. Sigg, "Modeling of Power Diodes with the Lumped-Charge Modeling Technique, IEEE Transactions on Power Electronics, Vol. 12, No. 3, pp . 398-405, May 1997.
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Latest update: January 23, 2013 by plauritz@ee.washington.edu