Saturation

Limit range of signal.

Collaboration diagram for Saturation:

Defines a max and min value for the signal. If the value is outside this range, the value will automatically be changed to the specified max or min.

Author

Karl-Johan Reite

Benjamin Scholz

Date

14.08.2007 KJR: Initial version.

20.07.2011 KGA: Ported to FhSim 2.0.

25.07.2011 KGA: Added documentation.

Example configuration excerpt

<Lib
  LibName   = "fhsim_base"
  SimObject = "Math/Saturation"
  Name      = "A"
  Min       = "0,-2"
  Max       = "5,6"
  PortWidth = "2"
/>
...
<Connection
  A.In = "10,4"
/>

Input Ports

Name	Width	Description
In	<PortWidth>	The input signal

Output Ports

Name	Width	Description
Out	<PortWidth>	The saturated input signal

Configuration parameters

Name	Width	Description
PortWidth	1	The number of elements in the input and output ports
Max	<PortWidth>	The upper saturation value with size 1 (scalar saturation) or <PortWidth> (individual component saturation)
Min	<PortWidth>	The lower saturation value with size 1 (scalar saturation) or <PortWidth> (individual component saturation

Initial conditions

There are no initial conditions for this function.

Full example file

<Contents>
  <OBJECTS>
    <Lib
        LibName="base" 
        SimObject="Math/Saturation"
        Name="A" 
        PortWidth="1" 
        Max="2"
        Min="0"
    />
    <Lib
        LibName="base" 
        SimObject="Src/Sine"  
        Name="S" 
        Amplitude="3"
        Bias="0"
        StartTime="0"
        PeriodS="4"
        PhaseDeg="0"
    />
  </OBJECTS>
  
  <INTERCONNECTIONS>
    <Connection
    A.In="S.Out"
    />
  </INTERCONNECTIONS>
 
  <INITIALIZATION>
    <InitialCondition
    />
  </INITIALIZATION>
 
  <INTEGRATION>
    <Engine
    IntegratorMethod="2"
    NumCores="1"
    TOutput="0, 0:1:5, 30"
    LogStates ="1"  
    stepsize ="0"
    HMax="0.002"
    HMin="0.00000001"
    AbsTol="1e-3" RelTol="1e-3"
    UseRSSNormInsteadOfInfNorm="0"
    FileOutput="objects:all"
    />
  </INTEGRATION>
</Contents>

This SimObject is referred to as Math/Saturation