Pulse

Single pulse generator with configurable amplitude, duration, and start time.

Generates a single rectangular pulse that starts at start_time and lasts for duty_cycle × period duration. The signal stays at amplitude value during the pulse duration and at offset value otherwise. Unlike a periodic pulse train, this component generates only one pulse.

$$y(t)=\{\begin{array}{ll}\text{amplitude},& \text{if }t>\text{start\_time}\text{ and }t\le \text{start\_time}+\text{duty\_cycle}\times \text{period}\\ \text{offset},& \text{otherwise}\end{array}$$

This component extends from Signal

Usage

BlockComponents.Pulse(start_time=0.0, offset=0.0, amplitude, duty_cycle, period)

Parameters:

Name	Description	Units	Default value
start_time	Time at which the signal starts changing from its offset value	s	0
offset	Constant value added to the signal output	–	0
amplitude	Maximum value of the pulse signal	–
duty_cycle	Fraction of the period during which output equals amplitude (between 0 and 1)	–
period	Duration parameter used with duty_cycle to determine pulse width	s

Connectors

• y - This connector represents a real signal as an output from a component (RealOutput)

Behavior

$$\begin{array}{rl}y\left(t\right)& =ifelse(t>\mathtt{start}\mathtt{\_}\mathtt{time},ifelse(t\le \mathtt{start}\mathtt{\_}\mathtt{time}+\mathtt{duty}\mathtt{\_}\mathtt{cycle}\mathtt{period},\mathtt{amplitude},\mathtt{offset}),\mathtt{offset})\end{array}$$

Source

# Single pulse generator with configurable amplitude, duration, and start time.
#
# Generates a single rectangular pulse that starts at start_time and lasts for duty_cycle × period duration.
# The signal stays at amplitude value during the pulse duration and at offset value otherwise.
# Unlike a periodic pulse train, this component generates only one pulse.
#
# ```math
# y(t) = \begin{cases}
# \text{amplitude}, & \text{if } t > \text{start\_time} \text{ and } t \leq \text{start\_time} + \text{duty\_cycle} \times \text{period} \\
# \text{offset}, & \text{otherwise}
# \end{cases}
# ```
component Pulse
  extends Signal
  # Maximum value of the pulse signal
  parameter amplitude::Real
  # Fraction of the period during which output equals amplitude (between 0 and 1)
  parameter duty_cycle::Real
  # Duration parameter used with duty_cycle to determine pulse width
  parameter period::Time
relations
  y = ifelse(time > start_time, ifelse(time <= start_time + duty_cycle * period, amplitude, offset), offset)
metadata {
  "Dyad": {
    "labels": [{"label": "$(instance)", "x": 500, "y": 1100, "rot": 0}],
    "icons": {"default": "dyad://BlockComponents/Pulse.svg"}
  }
}
end

Flattened Source

# Single pulse generator with configurable amplitude, duration, and start time.
#
# Generates a single rectangular pulse that starts at start_time and lasts for duty_cycle × period duration.
# The signal stays at amplitude value during the pulse duration and at offset value otherwise.
# Unlike a periodic pulse train, this component generates only one pulse.
#
# ```math
# y(t) = \begin{cases}
# \text{amplitude}, & \text{if } t > \text{start\_time} \text{ and } t \leq \text{start\_time} + \text{duty\_cycle} \times \text{period} \\
# \text{offset}, & \text{otherwise}
# \end{cases}
# ```
component Pulse
  # Real-valued output connector for the component
  y = RealOutput() {
    "Dyad": {
      "placement": {
        "icon": {"iconName": "default", "x1": 1000, "y1": 450, "x2": 1100, "y2": 550, "rot": 0},
        "diagram": {"iconName": "default", "x1": 1000, "y1": 450, "x2": 1100, "y2": 550, "rot": 0}
      }
    }
  }
  # Time at which the signal starts changing from its offset value
  parameter start_time::Time = 0.0
  # Constant value added to the signal output
  parameter offset::Real = 0.0
  # Maximum value of the pulse signal
  parameter amplitude::Real
  # Fraction of the period during which output equals amplitude (between 0 and 1)
  parameter duty_cycle::Real
  # Duration parameter used with duty_cycle to determine pulse width
  parameter period::Time
relations
  y = ifelse(time > start_time, ifelse(time <= start_time + duty_cycle * period, amplitude, offset), offset)
metadata {
  "Dyad": {
    "labels": [{"label": "$(instance)", "x": 500, "y": 1100, "rot": 0}],
    "icons": {"default": "dyad://BlockComponents/Pulse.svg"}
  }
}
end

Test Cases

No test cases defined.

Related

• Examples

• Experiments

• Analyses

• Tests

  • PulseTest