Diode

Electrical 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