SIMPLORER User Manual V6.0 - FER-a

9 Modeling Tools
SIMPLORER 6.0 — Manual 275
Complex simulation models usually need simple auxiliary functions to model typical curves,
characteristics, and equations simply and quickly. So the real subject of simulation can be investigated
faster and more precisely.
Nonlinear components need a characteristic to represent a behavior, sources a time function
to generate typical wave forms, and signals can be controlled dependent on their properties.
Modeling tools appear in the Tools folder of the «Basics» tab. The folder is subdivided in time
functions, characteristics, and equations. Select the folder Tools, open Time Functions, Characteristics,
or Equations, click a name, drag the component onto the sheet and release the
mouse button.
All components can be used to provide input signals, characteristics, and mathematical functions
for the simulation model.
9.1 Time Functions
• Sine Wave (SINE)
• Pulse Wave (PULSE)
• Triangular Wave (TRIANG)
• Trapezoidal Wave (TRAPEZ)
• Saw-tooth (ST_RISE/ST_FALL)
• Needle Pulses (NEEDLE)
• Arc Tangent (ARCTAN)
• Controlled Oscillator (VCO)
• 2D Lookup Table (LT_LIP/LT_NIP)
• PWM (/)
Using Time Functions
Time functions can be used for modeling in several ways.
• In electrical circuits, time functions can alter transient input signals of externally controlled
sources.
• In block diagrams, time functions can define nominal values, disturbances and reference
values.
• In the state graphs time functions define comparison functions and synchronization signals.