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如何向Advanced Design System导入spice模型
导入的IRF540N的模型文件如下：

.SUBCKT irf540n 1 2 3

* SPICE3 MODEL WITH THERMAL RC NETWORK

**************************************

* Model Generated by MODPEX *

*Copyright(c) Symmetry Design Systems*

* All Rights Reserved *

* UNPUBLISHED LICENSED SOFTWARE *

* Contains Proprietary Information *

* Which is The Property of *

* SYMMETRY OR ITS LICENSORS *

*Commercial Use or Resale Restricted *

* by Symmetry License Agreement *

**************************************

* Model generated on Sep 5, 01

* MODEL FORMAT: SPICE3

* Symmetry POWER MOS Model (Version 1.0)

* External Node Designations

* Node 1 -> Drain

* Node 2 -> Gate

* Node 3 -> Source

M1 9 7 8 8 MM L=100u W=100u

.MODEL MM NMOS LEVEL=1 IS=1e-32

+VTO=3.58173 LAMBDA=0.00806114 KP=112.25

+CGSO=1.896e-05 CGDO=1e-11

RS 8 3 0.025918

D1 3 1 MD

.MODEL MD D IS=1.565e-11 RS=0.006486 N=1.1328 BV=100

+IBV=0.00025 EG=1.2 XTI=3.32496 TT=0

+CJO=1.16e-09 VJ=3.16363 M=0.840542 FC=0.5

RDS 3 1 1e+06

RD 9 1 0.0130608

RG 2 7 6.45271

D2 4 5 MD1

* Default values used in MD1:

* RS=0 EG=1.11 XTI=3.0 TT=0

* BV=infinite IBV=1mA

.MODEL MD1 D IS=1e-32 N=50

+CJO=1.30485e-09 VJ=0.899032 M=0.9 FC=1e-08

D3 0 5 MD2

* Default values used in MD2:

* EG=1.11 XTI=3.0 TT=0 CJO=0

* BV=infinite IBV=1mA

.MODEL MD2 D IS=1e-10 N=0.4 RS=3e-06

RL 5 10 1

FI2 7 9 VFI2 -1

VFI2 4 0 0

EV16 10 0 9 7 1

CAP 11 10 2.35428e-09

FI1 7 9 VFI1 -1

VFI1 11 6 0

RCAP 6 10 1

D4 0 6 MD3

* Default values used in MD3:

* EG=1.11 XTI=3.0 TT=0 CJO=0

* RS=0 BV=infinite IBV=1mA

.MODEL MD3 D IS=1e-10 N=0.4

.ENDS irf540n

*SPICE Thermal Model Subcircuit

.SUBCKT irf540nt 3 0

R_RTHERM1 2 3 0.158

R_RTHERM2 1 2 0.274

R_RTHERM3 0 1 0.29

C_CTHERM1 2 3 0.00131

C_CTHERM2 1 2 0.001686

C_CTHERM3 0 1 0.022562

.ENDS irf540nt

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