TwinBuilder: RC Circuit Design in Twin Builder

This example shows how you can use PyAEDT to create a Twin Builder design and run a Twin Builder time-domain simulation.

Import Required Packages for Twin Builder

import os
from pyaedt import TwinBuilder

Select Version and Launch Options

This example launches Twin Builder 2022R2 in graphical mode.

# You can change the Boolean parameter ``non_graphical`` to ``True`` to launch
# Twin Builder in non graphical mode.
# You can change the Boolean parameter ``new_thread`` to ``False`` to launch
# Twin Builder in existing Desktop Session, if any.

desktop_version = "2022.2"

non_graphical = os.getenv("PYAEDT_NON_GRAPHICAL", "False").lower() in ("true", "1", "t")
new_thread = True

Launch Twin Builder

Use implicit declaration to launch Twin Builder Application

# Add a new Twin Builder design with a default setup

tb = TwinBuilder(specified_version=desktop_version, non_graphical=non_graphical, new_desktop_session=new_thread)

Out:

pyaedt info: Logger Started
pyaedt info: Launching PyAEDT outside Electronics Desktop with CPython and Pythonnet
pyaedt info: AEDT installation Path C:\Program Files\AnsysEM\v222\Win64.
pyaedt info: Launching AEDT with module Pythonnet.
pyaedt info: Ansoft.ElectronicsDesktop.2022.2 Started with process ID 668.
pyaedt info: Logger file D:\Temp\pyaedt20220624_103520.log in use.
pyaedt info: pyaedt v0.4.87
pyaedt info: Python version 3.8.10 (tags/v3.8.10:3d8993a, May  3 2021, 11:48:03) [MSC v.1928 64 bit (AMD64)]
pyaedt info: Project Project5 has been created.
pyaedt info: No design is present. Inserting a new design.
pyaedt info: Added design 'Twin Builder_3FI' of type Twin Builder.
pyaedt info: Design Loaded
pyaedt info: Successfully loaded project materials !
pyaedt info: Materials Loaded

Create Components for a RC circuit driven by a pulse voltage source

# Define the Grid Distance for ease in calculations

G = 0.00254

# These methods create components, such as voltage source, resistors, and capacitors.

source = tb.modeler.schematic.create_voltage_source("E1", "EPULSE", 10, 10, [0, 0])
resistor = tb.modeler.schematic.create_resistor("R1", 10000, [10 * G, 10 * G], 90)
capacitor = tb.modeler.schematic.create_capacitor("C1", 1e-6, [20 * G, 0])

Create a Ground

This method creates a ground, which is needed for a twin builder analog analysis.

gnd = tb.modeler.components.create_gnd([0, -10 * G])

Connect Components

This method connects components with pageports.

source.pins[1].connect_to_component(resistor.pins[0])
resistor.pins[1].connect_to_component(capacitor.pins[0])
capacitor.pins[1].connect_to_component(source.pins[0])
source.pins[0].connect_to_component(gnd.pins[0])

Out:

True

Parametrize a Transient Setup

This method setup the end time for the default transient setup.

tb.set_end_time("300ms")

Out:

True

Solve the Transient Setup

This method solves the transient setup.

tb.analyze_setup("TR")

Out:

pyaedt info: Solving design setup TR
pyaedt info: Design setup TR solved correctly

True

Get Report Data and plot it on matplotlib

Get the values for the voltage on the Pulse voltage source Get the values for the voltage on the capacitor in the RC Circuit

E_Value = "E1.V"
C_Value = "C1.V"

x = tb.post.get_solution_data([E_Value, C_Value], "TR", "Time")
x.plot([E_Value, C_Value], xlabel="Time", ylabel="Capacitor Voltage vs Input Pulse")

Out:

pyaedt info: Solution Data Correctly Loaded.

<Figure size 2000x1000 with 1 Axes>

Close Twin Builder

After the simulaton is completed, you can close Twin Builder or release it All methods provide for saving the project before exiting.

if os.name != "posix":
    tb.release_desktop()