.. include:: /project-links.txt
.. include:: /abbreviation.txt



.. getthecode:: transformer-example.py
    :language: python3
    :hidden:
    :notebook:


=============
 Transformer
=============

This examples shows how to simulate a transformer.


.. code-block:: py3

    
    
    import matplotlib.pyplot as plt
    
    
    import PySpice.Logging.Logging as Logging
    logger = Logging.setup_logging()
    
    
    from PySpice import Circuit, Simulator, plot
    from PySpice.Unit import *
    
    
    from Transformer import Transformer
    


.. literalinclude:: Transformer.py


.. code-block:: py3

    
    
    circuit = Circuit('Transformer')
    
    ac_line = circuit.AcLine('input', 'input', circuit.gnd, rms_voltage=230@u_V, frequency=50@u_Hz)
    circuit.subcircuit(Transformer(turn_ratio=10))
    circuit.X('transformer', 'Transformer', 'input', circuit.gnd, 'output', circuit.gnd)
    circuit.R('load', 'output', circuit.gnd, 1@u_kΩ)
    
    simulator = Simulator.factory()
    simulation = simulator.simulation(circuit, temperature=25, nominal_temperature=25)
    analysis = simulation.transient(step_time=ac_line.period/200, end_time=ac_line.period*3)
    
    figure, ax = plt.subplots(figsize=(20, 10))
    ax.plot(analysis.input)
    ax.plot(analysis.output)
    ax.legend(('Vin [V]', 'Vout [V]'), loc=(.8,.8))
    ax.grid()
    ax.set_xlabel('t [s]')
    ax.set_ylabel('[V]')
    
    plt.tight_layout()
    plt.show()
    


.. image:: transformer.png
    :align: center