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Ansoft Designer / Ansys Designer 在线帮助文档：

Nexxim Simulator >
Nexxim Component Models >
FETs (JFETs and MESFETs) >
   JFET Instance, SPICE Model (Level 1)       

JFET Instance, SPICE Model (Level 1)

 

SPICE JFET Instance Netlist Syntax

The netlist syntax for a SPICE model JFET Level 1 instance is:

Jxxxx nd ng ns [nb] modelname

[area_specification]

[M=val] [DTEMP=val]

nd is the drain node, ng is the gate node, ns is the source node and nb is the base or substrate node of the transistor. The modelname is the name of a JFET Level 1 model defined in a .MODEL statement elsewhere in the netlist.

The area_specification is one of the following entries:

[[AREA=]area]

or

[W=width] [L=length]

 

 


JFET/MESFET Instance Parameters

Instance Parameter

Description

Unit

Default

AREA

Area factor

None

1.0

DTEMP

Difference between transistor and circuit temperatures

°C

0

L

FET gate length

Meter

0.0

M

Multiplier to simulate multiple devices in parallel

None

1.0

W

FET gate width

Meter

0.0

SPICE JFET Instance Netlist Example

J1 11 22 33 44 jfet1 AREA=0.97



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