Examples.AccumulatorGraphical

An accumulator built using block diagram components.

This component performs the same accumulation as AccumulatorSyntactic, but uses graphical blocks: UnitDelay feeds the previous output back, and Add combines it with the current input.

Usage

DiscreteComponents.Examples.AccumulatorGraphical()

Connectors

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

Behavior

\[ \begin{equation} \left[ \begin{array}{c} \mathrm{connect}\left( y(t), unitdelay_{+}u(t) \right) \\ \mathrm{connect}\left( unitdelay_{+}y(t), add_{+}u1(t) \right) \\ \mathrm{connect}\left( u(t), add_{+}u2(t) \right) \\ \mathrm{connect}\left( add_{+}y(t), y(t) \right) \\ \mathtt{unitdelay.y}\left( t \right) = Shift(t, -1)\left( \mathtt{unitdelay.u}\left( t \right) \right) \\ \frac{\mathrm{d} \mathtt{unitdelay.dummy.dummy}\left( t \right)}{\mathrm{d}t} = 0 \\ \mathtt{add.y}\left( t \right) = \mathtt{add.k1} \mathtt{add.u1}\left( t \right) + \mathtt{add.k2} \mathtt{add.u2}\left( t \right) \\ \end{array} \right] \end{equation} \]

Source

"""
An accumulator built using block diagram components.

This component performs the same accumulation as AccumulatorSyntactic,
but uses graphical blocks: UnitDelay feeds the previous output back,
and Add combines it with the current input.
"""
component AccumulatorGraphical@[input clk extends Discrete]
  "Input signal to accumulate"
  u = RealInput@[clk]()
  "Accumulated output"
  y = RealOutput@[clk]()
  "Delays output by one sample"
  unitdelay = DiscreteComponents.UnitDelay()
  "Adds current input to previous output"
  add = BlockComponents.Add()
relations
  connect(y, unitdelay.u)
  connect(unitdelay.y, add.u1)
  connect(u, add.u2)
  connect(add.y, y)
end

"""
An accumulator built using block diagram components.

This component performs the same accumulation as AccumulatorSyntactic,
but uses graphical blocks: UnitDelay feeds the previous output back,
and Add combines it with the current input.
"""
component AccumulatorGraphical
  "Input signal to accumulate"
  u = RealInput@[clk]()
  "Accumulated output"
  y = RealOutput@[clk]()
  "Delays output by one sample"
  unitdelay = DiscreteComponents.UnitDelay()
  "Adds current input to previous output"
  add = BlockComponents.Add()
relations
  connect(y, unitdelay.u)
  connect(unitdelay.y, add.u1)
  connect(u, add.u2)
  connect(add.y, y)
metadata {}
end

Test Cases

No test cases defined.

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