SIMPLORER User Manual V6.0 - FER-a

4
5
130 Modeling with Circuit Components
The static current of the FWD (if enabled) and the current into the base of the BJT follows the
formula:
V AK
⎛ ---------------- ⎞
M ⋅ VT I I ⎜
S e – 1⎟
k ⋅ ( TEMP_JNCT + 273K)
= ⋅
V
⎜ ⎟ T = ---------------------------------------------------------------q
⎝ ⎠
k = Boltzmann constant (1.381E-23) q =
Elementary charge (1.602E-19)
The saturation current IS is temperature dependent and is calculated using the parameter
ISAT0 and the actual junction temperature imported from the thermal model.
The model has a built-in fault detection. During the simulation the collector current, the voltage
drop from gate to emitter and from collector to emitter as well as the junction temperature
are observed. If their limitations are exceeded the model behavior changes. The switches controlled
by the FAULT flags are closed and the respective fault resistances determine the model
characteristic. If an over voltage occurs across Gate-Emitter, only RFAULT_GE comes into
effect. All other faults effect the RFAULT_CE.
Component Parameters
Description [Unit] Parameter Name Data Type
Saturation Factor of internal FET A_FET real
Exponential Cofficient of A_FET ALPHA_AFET real
Saturation Exponent of internal FET M_FET real
Exponential Cofficient of M_FET ALPHA_MFET real
Exponent of Transfer Characteristic of FET N_FET real
Exponential Cofficient of N_FET ALPHA_NET real
Transistor Constant of FET at TEMP0 K0 real
Exponential Temperature Cofficient of K ALPHA_K real
Pinch-off-Voltage of FET at TEMP0 [V] VP0 real
Exponential Temperature Cofficient of VP ALPHA_VP real
Channel Lenght Modulation Factor of FET [1/V] KLM real
Band Gap Voltage of FET [V] VGAP real
Current Gain of BJT at TEMP0 BN0 real
Saturation Current of BJT Base at TEMP0 [A] ISAT0_BJT real
Exponential Temperature Cofficient of ISAT ALPHA_ISAT_BJT real
Ideality Factor of BJT Base at TEMP0 M0_BJT real
Linear Temperature Cofficient of M_BJT [Ω] ALPHA_M_BJT real
Bulk Resistance of BJT Base [Ω] RB0 real
BJT Base Shut [Ω] RP_BJT real
Collector Connector Resistance [Ω] RC real
Emitter Connector Resistance [Ω] RE real
Internal Gate Resistance for Switching On [Ω] RGON real
Exponential Temperature Cofficient of RGON ALPHA_RGON real
Linear Current Cofficient of RGON KAPPA_RGON real
Linear Voltage Cofficient of RGON SIGMA_RGON real