LIBRARY

Analog.Basic.Tests.CCC

Test circuit for CCC (current-controlled current source).

A sine voltage source (amplitude=1 V, frequency=1 Hz) drives a 5 Ω series resistor into the CCC input port (port 1). Since v1=0, the full source voltage drops across the resistor, producing i1 = V_source/R_series. A 10 Ω resistor loads the output port (port 2). CCC gain = 3.

Expected (algebraic, holds for all t):

• v1 = 0 (zero input impedance)

• i1 = sin(2π·t)/5 = 0.2·sin(2π·t)

• i2 = gain·i1 = 0.6·sin(2π·t)

• v2 = −R_load·i2 = −6·sin(2π·t)

Usage

ElectricalComponents.Analog.Basic.Tests.CCC()

Behavior

using ElectricalComponents #hide
using ModelingToolkit #hide
@named sys = ElectricalComponents.Analog.Basic.Tests.CCC() #hide
full_equations(sys) #hide

<< @example-block not executed in draft mode >>

Source

"""
Test circuit for CCC (current-controlled current source).

A sine voltage source (amplitude=1 V, frequency=1 Hz) drives a 5 Ω series
resistor into the CCC input port (port 1). Since v1=0, the full source
voltage drops across the resistor, producing i1 = V_source/R_series.
A 10 Ω resistor loads the output port (port 2).
CCC gain = 3.

Expected (algebraic, holds for all t):
- v1 = 0  (zero input impedance)
- i1 = sin(2π·t)/5 = 0.2·sin(2π·t)
- i2 = gain·i1 = 0.6·sin(2π·t)
- v2 = −R_load·i2 = −6·sin(2π·t)
"""
test component CCC
  "Sine signal: amplitude=1, frequency=1 Hz"
  sine = BlockComponents.Sources.Sine(amplitude = 1, frequency = 1) {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 0, "y1": 310, "x2": 100, "y2": 410, "rot": 0}
      },
      "tags": []
    }
  }
  "Input voltage source"
  vs = ElectricalComponents.Analog.Sources.VoltageSource() {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 160, "y1": 410, "x2": 260, "y2": 310, "rot": 90}
      },
      "tags": []
    }
  }
  "Series resistor to convert voltage to current"
  r_series = ElectricalComponents.Analog.Basic.Resistor(R = 5) {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 310, "y1": 200, "x2": 410, "y2": 300, "rot": 0}
      },
      "tags": []
    }
  }
  "CCC with gain=3"
  ccc = ElectricalComponents.Analog.Basic.CCC(gain = 3) {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 510, "y1": 320, "x2": 610, "y2": 420, "rot": 0}
      },
      "tags": []
    }
  }
  "Output load resistor"
  r_load = ElectricalComponents.Analog.Basic.Resistor(R = 10) {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 790, "y1": 410, "x2": 890, "y2": 310, "rot": 90}
      },
      "tags": []
    }
  }
  "Input-side ground"
  gnd1 = ElectricalComponents.Analog.Basic.Ground() {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 160, "y1": 580, "x2": 260, "y2": 680, "rot": 0}
      },
      "tags": []
    }
  }
  "Output-side ground"
  gnd2 = ElectricalComponents.Analog.Basic.Ground() {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 580, "y1": 580, "x2": 680, "y2": 680, "rot": 0}
      },
      "tags": []
    }
  }
relations
  connect(sine.y, vs.V) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
  connect(vs.p, r_series.p) {
    "Dyad": {
      "edges": [{"S": 1, "M": [{"x": 210, "y": 250}, {"x": 310, "y": 250}], "E": 2}],
      "renderStyle": "standard"
    }
  }
  connect(r_series.n, ccc.p1) {
    "Dyad": {
      "edges": [{"S": 1, "M": [{"x": 460, "y": 250}, {"x": 460, "y": 321}], "E": 2}],
      "renderStyle": "standard"
    }
  }
  connect(vs.n, gnd1.g) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
  connect(vs.n, ccc.n1) {
    "Dyad": {
      "edges": [
        {
          "S": 1,
          "M": [
            {"x": 210, "y": 470},
            {"x": 450, "y": 470},
            {"x": 450, "y": 420},
            {"x": 511, "y": 420}
          ],
          "E": 2
        }
      ],
      "renderStyle": "standard"
    }
  }
  connect(ccc.p2, r_load.p) {
    "Dyad": {
      "edges": [{"S": 1, "M": [{"x": 611, "y": 250}, {"x": 840, "y": 250}], "E": 2}],
      "renderStyle": "standard"
    }
  }
  connect(r_load.n, ccc.n2) {
    "Dyad": {
      "edges": [
        {
          "S": 1,
          "M": [{"x": 840, "y": 470}, {"x": 631, "y": 470}, {"x": 631, "y": 420}],
          "E": 2
        }
      ],
      "renderStyle": "standard"
    }
  }
  connect(gnd2.g, ccc.n2) {
    "Dyad": {
      "renderStyle": "standard",
      "edges": [{"S": 1, "M": [{"x": 630, "y": 420}], "E": 2}]
    }
  }
metadata {
  "Dyad": {
    "icons": {"default": "dyad://ElectricalComponents/Example.svg"},
    "tests": {"case1": {"stop": 1, "expect": {"signals": ["ccc.v1", "ccc.i1", "ccc.i2"]}}}
  }
}
end

Flattened Source

"""
Test circuit for CCC (current-controlled current source).

A sine voltage source (amplitude=1 V, frequency=1 Hz) drives a 5 Ω series
resistor into the CCC input port (port 1). Since v1=0, the full source
voltage drops across the resistor, producing i1 = V_source/R_series.
A 10 Ω resistor loads the output port (port 2).
CCC gain = 3.

Expected (algebraic, holds for all t):
- v1 = 0  (zero input impedance)
- i1 = sin(2π·t)/5 = 0.2·sin(2π·t)
- i2 = gain·i1 = 0.6·sin(2π·t)
- v2 = −R_load·i2 = −6·sin(2π·t)
"""
test component CCC
  "Sine signal: amplitude=1, frequency=1 Hz"
  sine = BlockComponents.Sources.Sine(amplitude = 1, frequency = 1) {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 0, "y1": 310, "x2": 100, "y2": 410, "rot": 0}
      },
      "tags": []
    }
  }
  "Input voltage source"
  vs = ElectricalComponents.Analog.Sources.VoltageSource() {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 160, "y1": 410, "x2": 260, "y2": 310, "rot": 90}
      },
      "tags": []
    }
  }
  "Series resistor to convert voltage to current"
  r_series = ElectricalComponents.Analog.Basic.Resistor(R = 5) {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 310, "y1": 200, "x2": 410, "y2": 300, "rot": 0}
      },
      "tags": []
    }
  }
  "CCC with gain=3"
  ccc = ElectricalComponents.Analog.Basic.CCC(gain = 3) {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 510, "y1": 320, "x2": 610, "y2": 420, "rot": 0}
      },
      "tags": []
    }
  }
  "Output load resistor"
  r_load = ElectricalComponents.Analog.Basic.Resistor(R = 10) {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 790, "y1": 410, "x2": 890, "y2": 310, "rot": 90}
      },
      "tags": []
    }
  }
  "Input-side ground"
  gnd1 = ElectricalComponents.Analog.Basic.Ground() {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 160, "y1": 580, "x2": 260, "y2": 680, "rot": 0}
      },
      "tags": []
    }
  }
  "Output-side ground"
  gnd2 = ElectricalComponents.Analog.Basic.Ground() {
    "Dyad": {
      "placement": {
        "diagram": {"iconName": "default", "x1": 580, "y1": 580, "x2": 680, "y2": 680, "rot": 0}
      },
      "tags": []
    }
  }
relations
  connect(sine.y, vs.V) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
  connect(vs.p, r_series.p) {
    "Dyad": {
      "edges": [{"S": 1, "M": [{"x": 210, "y": 250}, {"x": 310, "y": 250}], "E": 2}],
      "renderStyle": "standard"
    }
  }
  connect(r_series.n, ccc.p1) {
    "Dyad": {
      "edges": [{"S": 1, "M": [{"x": 460, "y": 250}, {"x": 460, "y": 321}], "E": 2}],
      "renderStyle": "standard"
    }
  }
  connect(vs.n, gnd1.g) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
  connect(vs.n, ccc.n1) {
    "Dyad": {
      "edges": [
        {
          "S": 1,
          "M": [
            {"x": 210, "y": 470},
            {"x": 450, "y": 470},
            {"x": 450, "y": 420},
            {"x": 511, "y": 420}
          ],
          "E": 2
        }
      ],
      "renderStyle": "standard"
    }
  }
  connect(ccc.p2, r_load.p) {
    "Dyad": {
      "edges": [{"S": 1, "M": [{"x": 611, "y": 250}, {"x": 840, "y": 250}], "E": 2}],
      "renderStyle": "standard"
    }
  }
  connect(r_load.n, ccc.n2) {
    "Dyad": {
      "edges": [
        {
          "S": 1,
          "M": [{"x": 840, "y": 470}, {"x": 631, "y": 470}, {"x": 631, "y": 420}],
          "E": 2
        }
      ],
      "renderStyle": "standard"
    }
  }
  connect(gnd2.g, ccc.n2) {
    "Dyad": {
      "renderStyle": "standard",
      "edges": [{"S": 1, "M": [{"x": 630, "y": 420}], "E": 2}]
    }
  }
metadata {
  "Dyad": {
    "icons": {"default": "dyad://ElectricalComponents/Example.svg"},
    "tests": {"case1": {"stop": 1, "expect": {"signals": ["ccc.v1", "ccc.i1", "ccc.i2"]}}}
  }
}
end

Test Cases

using ElectricalComponents
using DyadInterface: TransientAnalysis, rebuild_sol, ODEAlg
using ModelingToolkit: toggle_namespacing, get_initial_conditions, @named
using CSV, DataFrames, Plots

snapshotsdir = joinpath(dirname(dirname(pathof(ElectricalComponents))), "test", "snapshots")

<< @setup-block not executed in draft mode >>

Test Case case1

@named model_case1 = ElectricalComponents.Analog.Basic.Tests.CCC()
model_case1 = toggle_namespacing(model_case1, false)

model_case1 = toggle_namespacing(model_case1, true)
result_case1 = TransientAnalysis(; model = model_case1, alg = ODEAlg.Auto(), start = 0e+0, stop = 1e+0, abstol=1e-6, reltol=1e-6)
sol_case1 = rebuild_sol(result_case1)

<< @setup-block not executed in draft mode >>

df_case1 = DataFrame(:t => sol_case1[:t], :actual => sol_case1[model_case1.ccc.v1])
dfr_case1 = try CSV.read(joinpath(snapshotsdir, "ElectricalComponents.Analog.Basic.Tests.CCC_case1_sig0.ref"), DataFrame); catch e; nothing; end
plt = plot(sol_case1, idxs=[model_case1.ccc.v1], width=2, label="Actual value of ccc.v1")
if !isnothing(dfr_case1)
  scatter!(plt, dfr_case1.t, dfr_case1.expected, mc=:red, ms=3, label="Expected value of ccc.v1")
end

<< @setup-block not executed in draft mode >>

plt

<< @example-block not executed in draft mode >>

df_case1 = DataFrame(:t => sol_case1[:t], :actual => sol_case1[model_case1.ccc.i1])
dfr_case1 = try CSV.read(joinpath(snapshotsdir, "ElectricalComponents.Analog.Basic.Tests.CCC_case1_sig1.ref"), DataFrame); catch e; nothing; end
plt = plot(sol_case1, idxs=[model_case1.ccc.i1], width=2, label="Actual value of ccc.i1")
if !isnothing(dfr_case1)
  scatter!(plt, dfr_case1.t, dfr_case1.expected, mc=:red, ms=3, label="Expected value of ccc.i1")
end

<< @setup-block not executed in draft mode >>

plt

<< @example-block not executed in draft mode >>

df_case1 = DataFrame(:t => sol_case1[:t], :actual => sol_case1[model_case1.ccc.i2])
dfr_case1 = try CSV.read(joinpath(snapshotsdir, "ElectricalComponents.Analog.Basic.Tests.CCC_case1_sig2.ref"), DataFrame); catch e; nothing; end
plt = plot(sol_case1, idxs=[model_case1.ccc.i2], width=2, label="Actual value of ccc.i2")
if !isnothing(dfr_case1)
  scatter!(plt, dfr_case1.t, dfr_case1.expected, mc=:red, ms=3, label="Expected value of ccc.i2")
end

<< @setup-block not executed in draft mode >>

plt

<< @example-block not executed in draft mode >>

Related

• Examples

• Experiments

• Analyses

• Tests

  • CCC

  • CCC

  • Ground

  • Resistor

  • Sine

  • VoltageSource