Switch

Non-ideal electrical switch

Block Screenshot

Contents

• `Non-ideal electrical switch`_ +

  • Palette
  • Description
  • Dialog box
  • Default properties
  • Interfacing function
  • Modelica model

Palette

• Electrical.cosf - Electrical toolbox

Description

This is a non-ideal two-pole switch. If the explicit input become positive, two pins are connected via a resistor of resistance RON). Otherwise, two pins are connected via ROFF resistance. Note that using this block may result in a stiff model, so try to choose proper error tolerances.

Dialog box

• Resistance in On state (Ohm) Switch resistance when the Switch is closed Properties : Type ‘vec’ of size 1.
• Resistance in Off state (Ohm) Switch resistance when the switch is open Properties : Type ‘vec’ of size 1.

Default properties

• Inputs :

  • Modelica variable name : ‘p’ Implicit variable.
  • Modelica variable name : ‘inp’ Explicit variable.

• Outputs :

  • Modelica variable name : ‘n’ Implicit variable.

• Parameters :

  • Modelica parameter name : ‘Ron’ Default value : 0.01 Is a state variable : no.
  • Modelica parameter name : ‘Roff’ Default value : 100000 Is a state variable : no.

• File name of the model : Switch

Interfacing function

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

Modelica model

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