Switch and Diode: definition (structure)


A switch and diode components are defined by:

  • a name (and a comment)
  • a model
  • specific characteristics depending on the model
  • a command
  • two terminals


The name permitting the identification of the component is given by the user when this is created by him.

A comment (optional) can be added to the name.

The name and the comment are displayed by default in the graphic zone close to the symbol.

Switch and Diode: description

Characteristic quantities, necessary for the description of the switch and diode components are presented in the table below.

Components considered Proposed models and their characteristics



Roff : blocked resistance

Ron : resistance in conduction


Exponential functions

Is : saturation current

Rs : series resistance

Ut : voltage of the temperature

Is : saturation current

Rb : extrinsic resistance

VF0 : bend tension

Note: * Only for 2D applications now

Associated command signals

The switch need a signal to command them. The table below presents the different possibilities of commands.

Proposed commands and their characteristics

At start

By formula
By square signal

Pulse start

End of pulse

Period of signal