8.2.3. Rectification

rectification.pyrectification.py
#!# This example depicts half and full wave rectification.

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import os

import matplotlib.pyplot as plt

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import PySpice.Logging.Logging as Logging
logger = Logging.setup_logging()

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from PySpice.Probe.Plot import plot
from PySpice.Spice.Library import SpiceLibrary
from PySpice.Spice.Netlist import Circuit
from PySpice.Unit import *

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libraries_path = os.path.join(os.environ['PySpice_examples_path'], 'libraries')
spice_library = SpiceLibrary(libraries_path)

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figure1 = plt.figure(1, (20, 10))

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circuit = Circuit('half-wave rectification')
circuit.include(spice_library['1N4148'])
source = circuit.Sinusoidal('input', 'in', circuit.gnd, amplitude=10@u_V, frequency=50@u_Hz)
circuit.X('D1', '1N4148', 'in', 'output')
circuit.R('load', 'output', circuit.gnd, 100@u_Ω)

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

axe = plt.subplot(221)
plt.title('Half-Wave Rectification')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))

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#cm# half-wave-rectification.m4

circuit.C('1', 'output', circuit.gnd, 1@u_mF)

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

axe = plt.subplot(222)
plt.title('Half-Wave Rectification with filtering')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))

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circuit = Circuit('half-wave rectification')
circuit.include(spice_library['1N4148'])
source = circuit.Sinusoidal('input', 'in', circuit.gnd, amplitude=10, frequency=50)
circuit.X('D1', '1N4148', 'in', 'output_plus')
circuit.R('load', 'output_plus', 'output_minus', 100@u_Ω)
circuit.X('D2', '1N4148', 'output_minus', circuit.gnd)
circuit.X('D3', '1N4148', circuit.gnd, 'output_plus')
circuit.X('D4', '1N4148', 'output_minus', 'in')

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

axe = plt.subplot(223)
plt.title('Full-Wave Rectification')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output_plus - analysis.output_minus, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))

####################################################################################################

#cm# full-wave-rectification.m4

circuit.C('1', 'output_plus', 'output_minus', 1@u_mF)

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

axe = plt.subplot(224)
plt.title('Full-Wave Rectification with filtering')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output_plus - analysis.output_minus, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))

plt.tight_layout()
#fig# save_figure(figure1, 'rectification.png')

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circuit = Circuit('115/230V Rectifier')
circuit.include(spice_library['1N4148'])
on_115 = True # switch to select 115 or 230V
if on_115:
    node_230 = circuit.gnd
    node_115 = 'node_115'
    amplitude = 115@u_V
else:
    node_230 = 'node_230'
    node_115 = circuit.gnd
    amplitude = 230@u_V
source = circuit.Sinusoidal('input', 'in', circuit.gnd, amplitude=amplitude, frequency=50) # Fixme: rms
circuit.X('D1', '1N4148', 'in', 'output_plus')
circuit.X('D3', '1N4148', node_230, 'output_plus')
circuit.X('D2', '1N4148', 'output_minus', node_230)
circuit.X('D4', '1N4148', 'output_minus', 'in')
circuit.C('1', 'output_plus', node_115, 1@u_mF)
circuit.C('2', node_115, 'output_minus', 1@u_mF)
circuit.R('load', 'output_plus', 'output_minus', 10@u_Ω)

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
if on_115:
    simulator.initial_condition(node_115=0)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

figure2 = plt.figure(1, (20, 10))
axe = plt.subplot(111)
plt.title('115/230V Rectifier')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output_plus - analysis.output_minus, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
# plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))

plt.tight_layout()
#fig# save_figure(figure2, 'universal-rectifier.png')

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plt.show()

This example depicts half and full wave rectification.

import os

import matplotlib.pyplot as plt

import PySpice.Logging.Logging as Logging
logger = Logging.setup_logging()

from PySpice.Probe.Plot import plot
from PySpice.Spice.Library import SpiceLibrary
from PySpice.Spice.Netlist import Circuit
from PySpice.Unit import *

libraries_path = os.path.join(os.environ['PySpice_examples_path'], 'libraries')
spice_library = SpiceLibrary(libraries_path)

figure1 = plt.figure(1, (20, 10))

circuit = Circuit('half-wave rectification')
circuit.include(spice_library['1N4148'])
source = circuit.Sinusoidal('input', 'in', circuit.gnd, amplitude=10@u_V, frequency=50@u_Hz)
circuit.X('D1', '1N4148', 'in', 'output')
circuit.R('load', 'output', circuit.gnd, 100@u_Ω)

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

axe = plt.subplot(221)
plt.title('Half-Wave Rectification')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))
../../_images/half-wave-rectification.png
circuit.C('1', 'output', circuit.gnd, 1@u_mF)

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

axe = plt.subplot(222)
plt.title('Half-Wave Rectification with filtering')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))

circuit = Circuit('half-wave rectification')
circuit.include(spice_library['1N4148'])
source = circuit.Sinusoidal('input', 'in', circuit.gnd, amplitude=10, frequency=50)
circuit.X('D1', '1N4148', 'in', 'output_plus')
circuit.R('load', 'output_plus', 'output_minus', 100@u_Ω)
circuit.X('D2', '1N4148', 'output_minus', circuit.gnd)
circuit.X('D3', '1N4148', circuit.gnd, 'output_plus')
circuit.X('D4', '1N4148', 'output_minus', 'in')

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

axe = plt.subplot(223)
plt.title('Full-Wave Rectification')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output_plus - analysis.output_minus, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))
../../_images/full-wave-rectification.png
circuit.C('1', 'output_plus', 'output_minus', 1@u_mF)

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

axe = plt.subplot(224)
plt.title('Full-Wave Rectification with filtering')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output_plus - analysis.output_minus, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))

plt.tight_layout()
../../_images/rectification.png
circuit = Circuit('115/230V Rectifier')
circuit.include(spice_library['1N4148'])
on_115 = True # switch to select 115 or 230V
if on_115:
    node_230 = circuit.gnd
    node_115 = 'node_115'
    amplitude = 115@u_V
else:
    node_230 = 'node_230'
    node_115 = circuit.gnd
    amplitude = 230@u_V
source = circuit.Sinusoidal('input', 'in', circuit.gnd, amplitude=amplitude, frequency=50) # Fixme: rms
circuit.X('D1', '1N4148', 'in', 'output_plus')
circuit.X('D3', '1N4148', node_230, 'output_plus')
circuit.X('D2', '1N4148', 'output_minus', node_230)
circuit.X('D4', '1N4148', 'output_minus', 'in')
circuit.C('1', 'output_plus', node_115, 1@u_mF)
circuit.C('2', node_115, 'output_minus', 1@u_mF)
circuit.R('load', 'output_plus', 'output_minus', 10@u_Ω)

simulator = circuit.simulator(temperature=25, nominal_temperature=25)
if on_115:
    simulator.initial_condition(node_115=0)
analysis = simulator.transient(step_time=source.period/200, end_time=source.period*2)

figure2 = plt.figure(1, (20, 10))
axe = plt.subplot(111)
plt.title('115/230V Rectifier')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plot(analysis['in'], axis=axe)
plot(analysis.output_plus - analysis.output_minus, axis=axe)
plt.legend(('input', 'output'), loc=(.05,.1))
# plt.ylim(float(-source.amplitude*1.1), float(source.amplitude*1.1))

plt.tight_layout()
../../_images/universal-rectifier.png
plt.show()