Transfer Function For Circuits Calculator

This project is an application for calculating transfer functions of linear circuits given a SPICE description.

Usage

To run the application, follow these steps:

1. Install the required dependencies using pip install -r requirements.txt.
2. Run main application with python3 main.py

Current and next steps

At first a got a little bit ahead of myself and underestimated the complexity for the app's core main task, now I'm starting fresh from the basics:

• Get a transfer function small signal model amplifier circuit

Next steps:

• Find a way of putting the answer in a polynomial format;
• Create a way of passing the analyzed circuit via spice file;
• Make it as a CLI tool
• Make it to work as a python notebook
• Work as a LTSpice plugin (this one is really long term)

How to Setup this project

Run the following commands:

python -m venv venv
source venv/bin/activate
pip install -r requirements.txt

You can run locally or build the library:

python transfer_function_calculator/main.py -t ./transfer_function_calculator/samples/rlc.txt

Build:

python setup.py sdist bdist_wheel & pip install -e .

And run:

tf-calc -t ./transfer_function_calculator/samples/rlc.txt

If a change is made, clean up build files and run again:

rm -rf build dist transfer_function_calculator.egg-info & python setup.py sdist bdist_wheel & pip install -e .

Run Modes

1. Text mode, prints in terminal. Run with a path to a txt SPICE description file.

tf-calc -t ./transfer_function_calculator/samples/rlc.txt

2. Jupyter mode, opens interface in browser. Runs a local server to run Jupyter as an user interface.

tf-calc -j

License

This project is licensed under the MIT License.