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Справка Scilab >> Xcos > palettes > Electrical palette > NMOS

NMOS

Simple NMOS Transistor

Block Screenshot

Description

Description

The NMos model is a simple model of a n-channel metal-oxide semiconductor FET. It differs slightly from the device used in the SPICE simulator. For more details please care for H. Spiro.

The model does not consider capacitances. A small fixed drain-source resistance is included (to avoid numerical difficulties).

W [m] L [m] Beta [1/V²] Vt [V] K2 K5 DW [m] DL[m]  
12.e-6 4.e-6 .062 -4.5 .24 .61 -1.2e-6 -.9e-6 depletion
60.e-6 3.e-6 .048 .1 .08 .68 -1.2e-6 -.9e-6 enhancement
12.e-6 4.e-6 .0625 -.8 .21 .78 -1.2e-6 -.9e-6 zero
50.e-6 8.e-6 .0299 .24 1.144 .7311 -5.4e-6 -4.e-6  
20.e-6 6.e-6 .041 .8 1.144 .7311 -2.5e-6 -1.5e-6  
30.e-6 9.e-6 .025 -4. .861 .878 -3.4e-6 -1.74e-6  
30.e-6 5.e-6 .031 .6 1.5 .72 0 -3.9e-6  
50.e-6 6.e-6 .0414 -3.8 .34 .8 -1.6e-6 -2.e-6 depletion
50.e-6 5.e-6 .03 .37 .23 .86 -1.6e-6 -2.e-6 enhancement
50.e-6 6.e-6 .038 -.9 .23 .707 -1.6e-6 -2.e-6 zero
20.e-6 4.e-6 .06776 .5409 .065 .71 -.8e-6 -.2e-6  
20.e-6 4.e-6 .06505 .6209 .065 .71 -.8e-6 -.2e-6  
20.e-6 4.e-6 .05365 .6909 .03 .8 -.3e-6 -.2e-6  
20.e-6 4.e-6 .05365 .4909 .03 .8 -.3e-6 -.2e-6  
12.e-6 4.e-6 .023 -4.5 .29 .6 0 0 depletion
60.e-6 3.e-6 .022 .1 .11 .65 0 0 enhancement
12.e-6 4.e-6 .038 -.8 .33 .6 0 0 zero
20.e-6 6.e-6 .022 .8 1 .66 0 0  

Dialog box

  • Width [m]

    W

    Properties : Type 'vec' of size 1.

  • Length [m]

    L

    Properties : Type 'vec' of size 1.

  • Transconductance parameter [A/(V*V)]

    Beta

    Properties : Type 'vec' of size 1.

  • Zero bias threshold voltage [V]

    Vt

    Properties : Type 'vec' of size 1.

  • Bulk threshold parameter

    K2

    Properties : Type 'vec' of size 1.

  • Reduction of pinch-off region

    K5

    Properties : Type 'vec' of size 1.

  • Narrowing of channel [m]

    dW

    Properties : Type 'vec' of size 1.

  • Shortening of channel [m]

    dL

    Properties : Type 'vec' of size 1.

  • Drain-Source-Resistance [Ohm]

    RDS

    Properties : Type 'vec' of size 1.

Default properties

  • Inputs :

    • Modelica variable name : 'G'

      Implicit variable.

  • Outputs :

    • Modelica variable name : 'D'

      Implicit variable.

    • Modelica variable name : 'B'

      Implicit variable.

    • Modelica variable name : 'S'

      Implicit variable.

  • Parameters :

    • Modelica parameter name : 'W'

      Default value : 0.00002

      Is a state variable : no.

    • Modelica parameter name : 'L'

      Default value : 0.000006

      Is a state variable : no.

    • Modelica parameter name : 'Beta'

      Default value : 0.000041

      Is a state variable : no.

    • Modelica parameter name : 'Vt'

      Default value : 0.8

      Is a state variable : no.

    • Modelica parameter name : 'K2'

      Default value : 1.144

      Is a state variable : no.

    • Modelica parameter name : 'K5'

      Default value : 0.7311

      Is a state variable : no.

    • Modelica parameter name : 'dW'

      Default value : -0.0000025

      Is a state variable : no.

    • Modelica parameter name : 'dL'

      Default value : -0.0000015

      Is a state variable : no.

    • Modelica parameter name : 'RDS'

      Default value : 10000000

      Is a state variable : no.

  • File name of the model : NMOS

Interfacing function

  • SCI/modules/scicos_blocks/macros/Electrical/NMOS.sci

Modelica model

  • SCI/modules/scicos_blocks/macros/Electrical/NMOS.mo

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Last updated:
Thu Oct 02 14:01:12 CEST 2014