Diode

Block Screenshot

Contents

• Electrical diode

• • Palette

  • Description

  • Dialog box

  • Default properties

  • Interfacing function

  • Modelica model

Palette

• Electrical.cosf - Electrical toolbox

Description

This component consists of a simple diode parallel with an ohmic resistance (R). The current (I) passing through this component is defined as a function of the voltage across the ports (V) :

where Ids and Vt are the saturation current and the voltage equivalent of temperature, respectively. If the exponent reaches a certain limit (Max exponent for linear continuation), the diode characteristic becomes linear to avoid overflow.

Dialog box

• Saturation current (A)

  Saturation current

  Properties : Type 'vec' of size 1.

• Voltage equivalent to temperature (Volt)

  Voltage equivalent of temperature

  Properties : Type 'vec' of size 1.

• Max exponent for linear continuation

  Max exponent for linear continuation

  Properties : Type 'vec' of size 1.

• R (ohm)

  Parallel ohmic resistance.

  Properties : Type 'vec' of size 1.

Default properties

• Inputs :

  • Modelica variable name : 'p'

    Implicit variable.

• Outputs :

  • Modelica variable name : 'n'

    Implicit variable.

• Parameters :

  • Modelica parameter name : 'Ids'

    Default value : 0.000001

    Is a state variable : no.

  • Modelica parameter name : 'Vt'

    Default value : 0.04

    Is a state variable : no.

  • Modelica parameter name : 'Maxexp'

    Default value : 15

    Is a state variable : no.

  • Modelica parameter name : 'R'

    Default value : 1.000E+08

    Is a state variable : no.

• File name of the model : Diode

Interfacing function

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

Modelica model

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