Saturation Block

Clamps the input signal between lower and upper limits (saturation/limiting function)

# Saturation Block

Description

The Saturation block implements a limiter or saturation function that clamps the input signal between specified lower and upper limits. This is essential for modeling real-world actuators and systems with physical constraints such as motor voltage limits, control signal ranges, and anti-windup protection.

Mathematical Model

y = \max(L, \min(U, u))

Parameters

• lowerLimit: Minimum output value
  • Default: -1
• upperLimit: Maximum output value
  • Default: 1

lowerLimit

Type: number (Default: -1)

Lower Limit parameter description placeholder.

upperLimit

Type: number (Default: 1)

Upper Limit parameter description placeholder.

Examples

Input range -5 to 5, saturation limits -1 to 1 produces output in [-1, 1].

Remarks

• Asymmetric limits supported (e.g., [0, 1] for single-sided constraint)
• Zero computational overhead; instantaneous response
• Essential for realistic actuator modeling (motor limits, servo ranges)
• Prevents integrator windup in feedback controllers

See Also

• Gain: Signal scaling (use before saturation)
• Sum: Signal combination
• Derivative: Rate computation