SIMPLORER User Manual V6.0 - FER-a

Electrical Behavior Level, Type DYN=1
SIMPLORER 6.0 — Manual 143
Junction capacitance:
There is a distincion between the calculation of depletion and enhancement capacitance behavior.
The curves remain differentiable even at the transition from one region to the other.
The transition happens if the junction voltage is less than 0 V.
If the junction voltage is greater than 0 V, the following equation is used:
VJUNCT ⋅ ALPHA ⋅ ( 1 – DELTA)
⎛ – ⎛------------------------------------------------------------------------------------ ⎞⎞
⎝ VDIFF
⎠
CJNCT = C0JNCT ⋅ ⎜2– e
⎟
⎜ ⎟
⎝ ⎠
If the junction capacitance is negative (depletion region), the following equation is used:
1 – DELTA
CJNCT C0JNCT DELTA
⎛
1– VJUNCT ---------------------------- ⎞
⎝ VDIFF ⎠
Diffusion capacitances (base-emitter, base-collector):
ALPHA
⎛ ⎞
⎜ ⎟
= ⋅ ⎜ + --------------------------------------------------- ⎟
⎜ ⎟
⎝ ⎠
I BN
CDIFF_BE = TAU_BE ⋅ ----------------------------- CDIFF_BC =
TAU_BC ⋅ -----------------------------
M_BJT ⋅ VT M_BJT ⋅ VT Component Parameters (+ Parameters of TYPE DYN=0)
Description [Unit] Parameter Name Data Type
Nominal Voltage [V] VNOM real
Nominal Current [A] INOM real
Base-Emitter Reference Capacitance [F] C0_BE real
Diffusion Potential of Base-Emitter Capacitance [V] VDIFF_BE real
Capacitance Exponent Base-Emitter ALPHA_BE real
Influence of constant capacitance at Base-Emitter DELTA_BE real
Exponential Temperature Coefficient of Base-Emitter Depletion
Capacitance
ALPHA_CBE real
Base-Collector Reference Capacitance [F] C0_BC real
Diffusion Potential of Base-Collector Capacitance [V] VDIFF_BC real
Capacitance Exponent Base-Collector ALPHA_BC real
Influence of constant capacitance at Base-Collector DELTA_BC real
Collector-Emitter Reference Capacitance [F] C0_CE real
Diffusion Potential of Collector-Emitter Capacitance [V] VDIFF_CE real
Capacitance Exponent Collector-Emitter ALPHA_CE real
Influence of constant capacitance at Collector-Emitter DELTA_CE real
Carrier Lifetime at Base-Emitter Junction [s] TAU_BE real
Temperature Coefficient of Base-Emitter Carrier Lifetime ALPHA_TAU_BE real
Carrier Lifetime at Base-Collector Junction [s] TAU_BC real
Temperature Coefficient of Base-Collector Carrier Lifetime ALPHA_TAU_BC real
Collector Connector Inductance [H] LC real
Base Connector Inductance [H] LB real
Emitter Connector Inductance [H] LE real
I BI