def freq_resp():
shutil.copyfile('PA13.LIB', '/tmp/PA13.LIB')
shutil.copyfile('op27.cir', '/tmp/op27.cir')
circuit = Circuit('Freq Response')
circuit.include('/tmp/PA13.LIB')
circuit.include('/tmp/op27.cir')
circuit.subcircuit(PA13Amplifier(Z_1, Z_2))
circuit.subcircuit(OP27Amplifier(R_4, C_4))
# V_Ir input
circuit.SinusoidalVoltageSource('input', 'vr', circuit.gnd, amplitude=0.05)
circuit.R('r3', 'vir', 'vir2', Z_3)
# Current controller stage
circuit.X('curr', 'op27_amplifier', 'vir2', 'vr')
# Voltage stage
circuit.X('volt', 'pa13_amplifier', 'vr', 'vo')
# Motor stage
circuit.R('rm', 'vo', 'vm1', R_m)
circuit.L('lm', 'vm1', 'vio', L_m)
circuit.R('rs', 'vio', circuit.gnd, R_s)
circuit.R('r5', 'vio', 'vir2', Z_5)
simulator = circuit.simulator()
# Force ngspice to have shorter time steps near sharp transitions
simulator.options(trtol=0.0001)
import pdb
pdb.set_trace()
analysis = simulator.ac(
start_frequency=50e0,
stop_frequency=5 * f_h,
number_of_points=1000, # Lab manual suggests 20, might as well do more
variation='dec')
return analysis
def simulate_attenuation_factor_core(w, R_1, R_2, C_1, C_2, optboolean=False):
circuit = Circuit('Name me please')
circuit.include(spice_library['D1N4148'])
# TLV3201 is a 0-5 T.I. OpAmp
circuit.include(spice_library['LM741'])
V = 7
#w = 20E3
#circuit.V('1', circuit.gnd,1,f'DC 0 AC {V} SIN(0 {V} {w})')
circuit.V('1', 1, circuit.gnd, f'DC 0 AC {V} SIN(0 {V} {w})')
#R_1 = 11.2
#R_2 = 11.2
R_A = 100000
R_B = 0.001
#C_1 = 2000
#C_2 = 1000
links = [
(1, 2),
(2, 3),
(circuit.gnd, 4),
(4, 5),
]
R_vector = [
R_1,
R_2,
R_A,
R_B,
]
for x in range(len(R_vector)):
circuit.R(str(x + 1), links[x][0], links[x][1], R_vector[x] @ u_kΩ)
circuit.C('1', 2, 5, C_1 @ u_pF)
circuit.C('2', circuit.gnd, 3, C_2 @ u_pF)
circuit.X('opamp', 'LM741', 3, 4, 'Vcc', 'Vee', 5)
circuit.V('2', 'Vcc', circuit.gnd, 'DC +15')
circuit.V('3', 'Vee', circuit.gnd, 'DC -15')
if optboolean:
circuit.X('diodus', 'D1N4148', 2, 1)
f = w
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=((1 / f) / 10) @ u_s,
end_time=(4 / f) @ u_s) # Printer?
if False:
#print(str(circuit))
fig = plt.figure(figsize=(20, 4)) # create a figure object
ax = fig.add_subplot(1, 1, 1)
plt.plot(analysis['1'] - analysis['2'], label='R')
plt.plot(analysis['2'] - analysis['3'], label='L')
ax.plot(analysis['3'], label='C')
#ax.set_ylim(-int(V*1.1)-10,int(V*1.1)+10)
ax.legend()
ax.set_title(f'freq : {w}')
print(f'resonance was at {np.sqrt(1/(L*C))}')
if True:
outputter = max(analysis['5'])
del (circuit)
return outputter
return
def negative_clamper(v, r, c, f):
print(v, r, c, f)
circuit = Circuit('Negative Clamper')
circuit.include('./app/circuits/libraries/diode/switching/1N4148.lib')
source = circuit.SinusoidalVoltageSource('input',
'in',
circuit.gnd,
amplitude=u_V(float(v)),
frequency=u_Hz(float(f)))
circuit.C('C1', 'in', 'output', u_mF(float(c)))
circuit.X('D1', '1N4148', 'output', circuit.gnd)
circuit.R('load', 'output', circuit.gnd, u_Ohm(float(r)))
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period / 200,
end_time=source.period * 2)
plt.close('all')
plt.title('Negative Clamper')
plt.xlabel('Time [s]')
plt.ylabel('Voltage [V]')
plt.grid()
plt.plot(analysis['in'])
plt.plot(analysis.output)
plt.legend(('input', 'output'), loc=(.05, .1))
plt.tight_layout()
return circuit, analysis, plt
def create_test_circuit(fet_type, iparam, fet_L, fet_W, coner_path):
c = Circuit('gm_id')
c.include(
'/home/tclarke/skywater-pdk/libraries/sky130_fd_pr/latest/models/corners/tt.spice'
)
fet_L = 0.15
fet_W = 1
# create the circuit
c.V('gg', 1, c.gnd, 0 @ u_V)
c.V('dd', 2, c.gnd, 1.8 @ u_V)
c.X('M1',
fet_type,
2,
1,
c.gnd,
c.gnd,
L=fet_L,
W=fet_W,
ad="'W*0.29'",
pd="'2*(W+0.29)'",
as_="'W*0.29'",
ps="'2*(W+0.29)'",
nrd="'0.29/W'",
nrs="'0.29/W'",
sa=0,
sb=0,
sd=0,
nf=1,
mult=1)
return c
def create_circuit(genome, config):
libraries_path = '/home/alan/ngspice/libraries' # os.path.join(os.path.dirname(os.path.dirname(__file__)), 'libraries')
spice_library = SpiceLibrary(libraries_path)
circuit = Circuit('NEAT')
circuit.include(spice_library['1N4148'])
Vbase = circuit.V('base', 'input1', circuit.gnd, 2)
Vcc = circuit.V('cc', 'input2', circuit.gnd, 5)
Vgnd = circuit.V('gnd', 'input3', circuit.gnd, 0)
#circuit.R('test1', 'node0', circuit.gnd, 1e6)
#circuit.R('test2', 'node0', 'input1', 1e6)
ridx = 1
xidx = 1
for key, c in iteritems(genome.connections):
if c.component == 'resistor':
pin0, pin1 = get_pins(key)
R = 10**c.value
circuit.R(ridx, pin1, pin0, R)
ridx += 1
elif c.component == 'diode':
pin0, pin1 = get_pins(key)
circuit.X(xidx, '1N4148', pin1, pin0)
xidx += 1
return circuit
def full_wave_rectifier(v, r, c, f):
circuit = Circuit('Full-wave rectification')
circuit.include('./app/circuits/libraries/diode/switching/1N4148.lib')
source = circuit.SinusoidalVoltageSource('input',
'in',
circuit.gnd,
amplitude=u_V(float(v)),
frequency=u_Hz(float(f)))
circuit.X('D1', '1N4148', 'in', 'output_plus')
circuit.R('load', 'output_plus', 'output_minus', u_Ω(float(r)))
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)
plt.close('all')
figure, (ax3, ax4) = plt.subplots(2, figsize=(20, 10))
ax3.set_title('Full-Wave Rectification')
ax3.set_xlabel('Time [s]')
ax3.set_ylabel('Voltage [V]')
ax3.grid()
ax3.plot(analysis['in'])
ax3.plot(analysis.output_plus - analysis.output_minus)
ax3.legend(('input', 'output'), loc=(.05, .1))
ax3.set_ylim(float(-source.amplitude * 1.1), float(source.amplitude * 1.1))
circuit.C('1', 'output_plus', 'output_minus', u_mF(float(c)))
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period / 200,
end_time=source.period * 2)
ax4.set_title('Full-Wave Rectification with filtering')
ax4.set_xlabel('Time [s]')
ax4.set_ylabel('Voltage [V]')
ax4.grid()
ax4.plot(analysis['in'])
ax4.plot(analysis.output_plus - analysis.output_minus)
ax4.legend(('input', 'output'), loc=(.05, .1))
ax4.set_ylim(float(-source.amplitude * 1.1), float(source.amplitude * 1.1))
plt.tight_layout()
return circuit, analysis, plt
def make_database_core(w, V, R_1, R_2, C_1, C_2, ax=False):
circuit = Circuit('Sallen-key low-pass-filter')
circuit.include(spice_library['D1N4148'])
circuit.include(spice_library['LM741'])
circuit.V('1', 1, circuit.gnd, f'DC 0 AC {V} SIN(0 {V} {w})')
R_A = 100000
R_B = 0.001
links = [
(1, 2),
(2, 3),
(circuit.gnd, 4),
(4, 5),
]
R_vector = [
R_1,
R_2,
R_A,
R_B,
]
for x in range(len(R_vector)):
circuit.R(str(x + 1), links[x][0], links[x][1], R_vector[x] @ u_kΩ)
circuit.C('1', 2, 5, C_1 @ u_pF)
circuit.C('2', circuit.gnd, 3, C_2 @ u_pF)
circuit.X('opamp', 'LM741', 3, 4, 'Vcc', 'Vee', 5)
circuit.V('2', 'Vcc', circuit.gnd, 'DC +15')
circuit.V('3', 'Vee', circuit.gnd, 'DC -15')
circuit.X('diodus', 'D1N4148', 2, 1)
f = w
tf = 3 / w
t0 = 1
treshold = 4
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=((1 / f) / 10) @ u_s,
end_time=3 / w @ u_s)
if False:
ax.plot(analysis['5'], label='output')
ax.plot(analysis['1'], label='input')
ax.plot(analysis['1'] - analysis['2'], label='diodo')
ax.hlines(4, 0, 5 / w)
ax.legend()
ax.set_title(
f'R1: {R_1}, R2: {R_2}, C1: {C_1}, C2: {C_2}, V: {V}, W: {w}')
ax.set_ylim(-15, 15)
auxiliar = analysis['2'] - analysis['1']
del (circuit)
return [w, V, R_1, R_2, C_1, C_2, int(float(max(auxiliar)) > treshold)]
def test_subcircuit(self):
circuit = Circuit('')
circuit.include('.../mosdriver.lib')
circuit.X('test', 'mosdriver', '0', '1', '2', '3', '4', '5')
circuit.BehavioralSource('test',
'1',
'0',
voltage_expression='if(0, 0, 1)',
smoothbsrc=1)
print(circuit)
def step_resp(vpk_pk):
vmax = vpk_pk / 2
shutil.copyfile('PA13.LIB', '/tmp/PA13.LIB')
shutil.copyfile('op27.cir', '/tmp/op27.cir')
circuit = Circuit('Step Response')
circuit.include('/tmp/PA13.LIB')
circuit.include('/tmp/op27.cir')
circuit.subcircuit(PA13Amplifier(Z_1, Z_2))
circuit.subcircuit(OP27Amplifier(R_4, C_4))
# V_Ir input
circuit.PulseVoltageSource(
'input',
'vir',
circuit.gnd,
-vmax,
vmax,
pulse_width=0.05, # 0.05s
period=0.1, # 0.1s, 10Hz
rise_time=1e-9,
fall_time=1e-9) # From lab provided schematic
circuit.R('r3', 'vir', 'vir2', Z_3)
# Current controller stage
circuit.X('curr', 'op27_amplifier', 'vir2', 'vr')
# Voltage stage
circuit.X('volt', 'pa13_amplifier', 'vr', 'vo')
# Motor stage
circuit.R('rm', 'vo', 'vm1', R_m)
circuit.L('lm', 'vm1', 'vio', L_m)
circuit.R('rs', 'vio', circuit.gnd, R_s)
circuit.R('r5', 'vio', 'vir2', Z_5)
simulator = circuit.simulator()
# Force ngspice to have shorter time steps near sharp transitions
simulator.options(trtol=0.00001)
import pdb
pdb.set_trace()
analysis = simulator.transient(
step_time=0.1, # Lab schematic suggests 0.1s, this seems too slow
end_time=0.045
) # Lab schematic stops at 1s, we only need the first step
return analysis
def register_subcircuit_instance(circuit: SpiceCircuit, inst: pya.Circuit):
"""
Create a SPICE instance of the KLayout subcircuit instance `inst`.
:param circuit: PySpice circuit to add the subcircuit instance ('X').
:param inst: KLayout circuit instance.
:return:
"""
ref = inst.circuit_ref()
name = ref.name
num_pins = ref.pin_count()
pin_nets = [inst.net_for_pin(i) for i in range(num_pins)]
pin_names = [get_net_name(pin_net) for pin_net in pin_nets]
circuit.X('{}'.format(inst.id()), name, *pin_names)
def setup_circuit(kind="biased"):
if kind=="biased":
circuit = Circuit('Biased Envelope Circuit')
circuit.include(spice_library['hsms'])
circuit.V('in', 'input', circuit.gnd, 'dc 0 external')
# bias portion
circuit.C(2, 'input', 1, 10@u_nF)
circuit.R(2, 1, 2, 1@u_kOhm)
circuit.X('D2', 'hsms', 2, circuit.gnd)
circuit.R(3, 2, 'bias', 1@u_kOhm)
circuit.V('bias', 'bias', circuit.gnd, 5@u_V)
# envelope portion
circuit.X('D1', 'hsms', 1, 'output')
circuit.C(1, 'output', circuit.gnd, 220@u_pF)
circuit.R(1, 'output', circuit.gnd, 50@u_Ohm)
return circuit
elif kind=="basic":
circuit = Circuit('Biased Envelope Circuit')
circuit.include(spice_library['hsms'])
circuit.V('in', 'input', circuit.gnd, 'dc 0 external')
# envelope portion
circuit.X('D1', 'hsms', 'input', 'output')
circuit.C(1, 'output', circuit.gnd, 220@u_pF)
circuit.R(1, 'output', circuit.gnd, 50@u_Ohm)
return circuit
elif kind=="diode":
circuit = Circuit('Diode Output')
circuit.include(spice_library['hsms'])
circuit.V('in', 'input', circuit.gnd, 'dc 0 external')
circuit.X('D1', 'hsms', 'input', 'output')
return circuit
def make_database_core(w=2000,V=12,R=10,L=3,C=320):
threshold = 4
circuit = Circuit('RLC-series')
circuit.V('1',0,1, f'DC 0 AC {V} SIN(0 {V} {w})')
circuit.R('1', 1, 2,R@u_kΩ)
circuit.L('1', 2, 3,L@u_H)
circuit.X('diodus','D1N4148', 2, 3)
circuit.include(spice_library['D1N4148'])
circuit.C('1', 3, 0,C@u_nF)
dt = 2*np.pi/w*4
tau = 2*np.pi/w*4
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=dt@u_ms, end_time=tau@u_s)
auxiliar = analysis['2']-analysis['3']
return [w,V,R,L,C,int(float(max(auxiliar))>threshold)]
def createCircuit(filter1o, filter2o):
circuit = Circuit('Filter')
circuit.include('Models/BasicOpamp.cir')
circuit.include('Models/AD8619.cir')
circuit.include('Models/TL084.cir')
circuit.subcircuit(filter1o)
circuit.subcircuit(filter2o)
circuit.V('1', '5V', circuit.gnd, '5')
circuit.V('2', 'VRef', circuit.gnd, '2.5')
circuit.SinusoidalVoltageSource('In', 'In', 'VRef', amplitude=1)
circuit.X('1', filter1o.name, 'In', 'out1o', 'VRef', '5V', circuit.gnd)
circuit.X('2', filter2o.name, 'In', 'out2o', 'VRef', '5V', circuit.gnd)
print(circuit)
return circuit
def make_database_core(w, V, R, C):
circuit = Circuit('RC low-pass filter')
# Include non-passive elements:
# D1N4148 is a (regular&cheap) Diode
circuit.include(spice_library['D1N4148'])
fc = 1 / 2 / 3.14 / (R * 1000) / (C * 1E-9) # Cut Frequency!
circuit.V('1', 1, circuit.gnd, f'DC 0 AC {V} SIN(0 {V} {w})')
circuit.R('1', 1, 2, R @ u_kΩ)
circuit.C('1', 2, circuit.gnd, C @ u_nF)
circuit.X('diodus', 'D1N4148', 2, circuit.gnd)
f = w
treshold = 4
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=((1 / f) / 10) @ u_s,
end_time=(4 / f) @ u_s)
outputter = int(float(max(-analysis['2'])) > treshold)
del (circuit)
return [w, V, R, C, outputter]
def simulate_sallen_key_low_pass_filter():
# Initialize the Circuit
circuit = Circuit('Sallen-key low-pass-filter')
# Include the active element: operational amplifier
circuit.include(spice_library['LM741'])
V = 2
w = 2E3
circuit.V('1', 1, circuit.gnd, f'DC 0 AC {V} SIN(0 {V} {w})')
R_1 = 11.2
R_2 = 11.2
R_A = 1000
R_B = 0.01
C_1 = 200
C_2 = 100
links = [
(1, 2),
(2, 3),
(circuit.gnd, 4),
(4, 5),
]
R_vector = [
R_1,
R_2,
R_A,
R_B,
]
for x in range(len(R_vector)):
circuit.R(str(x + 1), links[x][0], links[x][1], R_vector[x] @ u_kΩ)
circuit.C('1', 2, 5, C_1 @ u_pF)
circuit.C('2', circuit.gnd, 3, C_2 @ u_pF)
circuit.X('opamp', 'LM741', 3, 4, 'Vcc', 'Vee', 5)
circuit.V('2', 'Vcc', circuit.gnd, 'DC +15')
circuit.V('3', 'Vee', circuit.gnd, 'DC -15')
f = w
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=((1 / f) / 10) @ u_s,
end_time=(4 / f) @ u_s)
fig, ax = plt.subplots(figsize=(20, 5))
ax.plot(analysis['5'], label='out')
ax.plot(analysis['1'], label='in')
ax.legend()
plt.savefig('gallery/sallen-key-low-pass-filter_example.png')
def make_database_core(R1,R2,RC,RE,RL,C1,C2,V,w,l=False):
circuit = Circuit('Amplifier')
circuit.R(1, 5, 2, R1@u_kΩ) #kOhm
circuit.R(2, 2, 0, R2@u_kΩ) #kOhm
circuit.R('C', 5, 4, RC@u_kΩ) #kOhm
circuit.R('E', 3, 0, RE@u_kΩ) #kOhm
circuit.R('Load', 'out', 0, RL@u_MΩ) #MOhm
circuit.C(1, 'inp', 2, C1@u_uF) #uF
circuit.C(2, 4, 'out', C2@u_uF) #uF
circuit.BJT(1, 4, 2, 3, model='bjt') # Q mapped to BJT
circuit.model('bjt', 'npn', bf=80, cjc=pico(5), rb=100)
circuit.V('power', 5, circuit.gnd, 15@u_V)
circuit.V('var','inp',circuit.gnd, f'DC 0 AC {V} SIN(0 {V}V {w})')
circuit.include(spice_library['D1N4148'])
circuit.X('diode','D1N4148',3,2)
T = 25
simulator = circuit.simulator(temperature=T, nominal_temperature=T)
analysis = simulator.transient(step_time = (1/w/10)@u_s,end_time=(2/w)@u_s)
treshold = 4
return [R1,R2,RC,RE,RL,C1,C2,V,w,
int(treshold<float(max(analysis['3']-analysis['2'])))]
def operational_amplifier():
circuit = Circuit('Operational Amplifier')
# AC 1 PWL(0US 0V 0.01US 1V)
circuit.SinusoidalVoltageSource('input',
'in',
circuit.gnd,
amplitude=10000000 @ u_V)
circuit.subcircuit(BasicOperationalAmplifier())
circuit.X('op', 'BasicOperationalAmplifier', 'in', circuit.gnd, 'out')
circuit.R('load', 'out', circuit.gnd, 470 @ u_Ω)
circuit.R(
'R1',
'in',
'out',
)
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.ac(start_frequency=1 @ u_Hz,
stop_frequency=100 @ u_MHz,
number_of_points=5,
variation='dec')
plt.close('all')
figure, (ax1, ax2) = plt.subplots(2, figsize=(20, 10))
plt.title("Bode Diagram of an Operational Amplifier")
bode_diagram(
axes=(ax1, ax2),
frequency=analysis.frequency,
gain=20 * np.log10(np.absolute(analysis.out)),
phase=np.angle(analysis.out, deg=False),
marker='.',
color='blue',
linestyle='-',
)
return circuit, analysis, plt
class Level1(SubCircuitFactory):
__name__ = 'level1'
__nodes__ = ('d3', 'g3', 'v3')
def __init__(self):
super().__init__()
self.X('mos2', 'level2', 'd3', 'g3', 'v3')
self.subcircuit(Level2())
circuit = Circuit('Transistor output characteristics')
circuit.V('dd', 'd1', circuit.gnd, 2)
circuit.V('ss', 'vsss', circuit.gnd, 0)
circuit.V('sig', 'g1', 'vsss', 0)
circuit.X('mos1', 'level1', 'd1', 'g1', 'vsss')
if True:
circuit.subcircuit(Level1())
else:
subcircuit_level2 = SubCircuit('level2', 'd4', 'g4', 'v4')
subcircuit_level2.M(1,
'd4',
'g4',
'v4',
'v4',
model='nmos',
w=1e-5,
l=3.5e-7)
subcircuit_level1 = SubCircuit('level1', 'd3', 'g3', 'v3')
circuit.R('in', 'in', 1, 50)
circuit.R('carrier', 'carrier', 2, 50)
circuit.include(spice_library['1N4148'])
circuit.subcircuit(
RingModulator(
outer_inductance=micro(1),
inner_inductance=micro(1),
coupling=.99,
diode_model='1N4148',
))
circuit.X(
'ring_modulator',
'RingModulator',
1,
circuit.gnd,
2,
circuit.gnd,
'output',
circuit.gnd,
)
# outer_inductance = .01
# inner_inductance = .0025
# coupling = .9
# diode_model = '1N4148'
# input_inductor = circuit.L('input', 1, circuit.gnd, outer_inductance)
# top_inductor = circuit.L('input_top', 'input_top', 'carrier', inner_inductance)
# bottom_inductor = circuit.L('input_bottom', 'input_bottom', 'carrier', inner_inductance)
# circuit.CoupledInductor('input_top', input_inductor.name, top_inductor.name, coupling)
# circuit.CoupledInductor('input_bottom', input_inductor.name, bottom_inductor.name, coupling)
# circuit.X('D1', diode_model, 'input_top', 'output_top')
def mkschematic(ind, nnodes, nodelist, spice_library):
circuit = Circuit('generated circuit')
circuit.V('vcc', 'vcc', circuit.gnd, '5V')
circuit.V('vdd', 'vdd', circuit.gnd, '-5V')
circuit.Sinusoidal('input', 'vin', circuit.gnd, amplitude=5)
nodes = 0
for i in range(nnodes):
if ind[5 * i] == 1:
circuit.R(
nodes,
nodelist[ind[5 * i +
2]] if ind[5 * i + 2] != 0 else circuit.gnd,
nodelist[ind[5 * i +
3]] if ind[5 * i + 3] != 0 else circuit.gnd,
values.E12R[ind[5 * i + 1]])
elif ind[5 * i] == 2:
circuit.C(
nodes,
nodelist[ind[5 * i +
2]] if ind[5 * i + 2] != 0 else circuit.gnd,
nodelist[ind[5 * i +
3]] if ind[5 * i + 3] != 0 else circuit.gnd,
values.E12C[ind[5 * i + 1]])
elif ind[5 * i] == 3:
circuit.include(spice_library['2n2222a'])
circuit.BJT(
nodes,
nodelist[ind[5 * i +
2]] if ind[5 * i + 2] != 0 else circuit.gnd,
nodelist[ind[5 * i +
3]] if ind[5 * i + 3] != 0 else circuit.gnd,
nodelist[ind[5 * i +
4]] if ind[5 * i + 4] != 0 else circuit.gnd,
'2n2222a')
elif ind[5 * i] == 4:
circuit.include(spice_library['2n2907'])
circuit.BJT(
nodes,
nodelist[ind[5 * i +
2]] if ind[5 * i + 2] != 0 else circuit.gnd,
nodelist[ind[5 * i +
3]] if ind[5 * i + 3] != 0 else circuit.gnd,
nodelist[ind[5 * i +
4]] if ind[5 * i + 4] != 0 else circuit.gnd,
'2n2907')
elif ind[5 * i] == 6:
circuit.include(spice_library['1N4148'])
circuit.X(
'D{}'.format(nodes), '1N4148',
nodelist[ind[5 * i +
2]] if ind[5 * i + 2] != 0 else circuit.gnd,
nodelist[ind[5 * i +
3]] if ind[5 * i + 3] != 0 else circuit.gnd)
elif ind[5 * i] == 5:
circuit.L(
nodes,
nodelist[ind[5 * i +
2]] if ind[5 * i + 2] != 0 else circuit.gnd,
nodelist[ind[5 * i +
3]] if ind[5 * i + 3] != 0 else circuit.gnd,
values.E12I[ind[5 * i + 1]])
elif ind[5 * i] == 0:
continue
else:
continue
nodes += 1
print(circuit)
import datetime
sim_start_time = datetime.datetime.now()
print()
print('Simulation Start Time =', sim_start_time)
print()
####################################################################################################
#?# circuit_macros('buck-converter.m4')
circuit = Circuit('Buck Converter')
# Note that PySpice will parse ALL *.lib in the directory, even if they are not included, so keep extra .libs out
# the directory where the .lib files are called from is specified in 'libraries_path' (line 327 above)
circuit.include(spice_library['buck_netlist_simple'])
# Top level circuit annotated as "x1"
circuit.X(1, 'buck_netlist_simple', 'vin', 'gate_drive', 'output_v', 'sw_node')
Vin = 12 @ u_V
# Vout = 6@u_V
# ratio = Vout / Vin
# frequency = 400@u_kHz
# period = 2.5@u_us
# duty_cycle = 1.25@u_us
# Create input voltage to send to netlist
circuit.V('input', 'vin', circuit.gnd, Vin)
#####
# Simulation parameters
#####
def generate_and_test(self, gui, ind):
circuit = Circuit('generated circuit')
sys.stdout.write(' {:.1%}%\b\r'.format(self.GENCOUNTER /
self.POPSIZE))
sys.stdout.flush()
circuit.V('vcc', 'vcc', circuit.gnd, '5V')
circuit.V('vdd', 'vdd', circuit.gnd, '-5V')
circuit.Sinusoidal('input', 'vin', circuit.gnd, amplitude=2)
nodes = 0
try:
for i in range(self.N_NODES):
if ind[5 * i] == 1:
circuit.R(
nodes, self.NODELIST[ind[5 * i + 2]]
if ind[5 * i + 2] != 0 else circuit.gnd,
self.NODELIST[ind[5 * i + 3]] if ind[5 * i + 3] != 0
else circuit.gnd, values.E12R[ind[5 * i + 1]])
elif ind[5 * i] == 2:
circuit.C(
nodes, self.NODELIST[ind[5 * i + 2]]
if ind[5 * i + 2] != 0 else circuit.gnd,
self.NODELIST[ind[5 * i + 3]] if ind[5 * i + 3] != 0
else circuit.gnd, values.E12C[ind[5 * i + 1]])
elif ind[5 * i] == 3:
circuit.include(self.spice_library['2n2222a'])
circuit.BJT(
nodes, self.NODELIST[ind[5 * i + 2]]
if ind[5 * i + 2] != 0 else circuit.gnd,
self.NODELIST[ind[5 * i + 3]] if ind[5 * i + 3] != 0
else circuit.gnd, self.NODELIST[ind[5 * i + 4]]
if ind[5 * i + 4] != 0 else circuit.gnd, '2n2222a')
elif ind[5 * i] == 4:
circuit.include(self.spice_library['2n2907'])
circuit.BJT(
nodes, self.NODELIST[ind[5 * i + 2]]
if ind[5 * i + 2] != 0 else circuit.gnd,
self.NODELIST[ind[5 * i + 3]] if ind[5 * i + 3] != 0
else circuit.gnd, self.NODELIST[ind[5 * i + 4]]
if ind[5 * i + 4] != 0 else circuit.gnd, '2n2907')
elif ind[5 * i] == 6:
circuit.include(self.spice_library['1N4148'])
circuit.X(
'D{}'.format(nodes), '1N4148',
self.NODELIST[ind[5 * i + 2]] if ind[5 * i + 2] != 0
else circuit.gnd, self.NODELIST[ind[5 * i + 3]]
if ind[5 * i + 3] != 0 else circuit.gnd)
elif ind[5 * i] == 5:
circuit.L(
nodes, self.NODELIST[ind[5 * i + 2]]
if ind[5 * i + 2] != 0 else circuit.gnd,
self.NODELIST[ind[5 * i + 3]] if ind[5 * i + 3] != 0
else circuit.gnd, values.E12I[ind[5 * i + 1]])
elif ind[5 * i] == 0:
continue
else:
continue
nodes += 1
simulator = circuit.simulator(temperature=25,
nominal_temperature=25)
analysis = simulator.transient(start_time="2ms",
step_time='1ms',
end_time='40ms',
max_time='40ms ')
except:
self.DEAD += 1
self.s['pop'][self.s['counter']] = [self.GEN, -1, self.GENCOUNTER]
self.s['counter'] += 1
self.GENCOUNTER += 1
return (-1., )
result = 0
try:
j = 0.
for n, m in zip(analysis.nodes['vin'][1:-1],
analysis.nodes['out'][1:-1]):
j += self.toolbox.evaluator(n, m)
result = (j / max([
len(analysis.nodes['out'][1:-1]),
len(analysis.nodes['out'][1:-1])
])) * (1 + 0.01 * (self.N_NODES - nodes))
if result > 0 and gui != None:
gui.dc.update_data(result, analysis.nodes['out'][1:-1],
analysis.nodes['vin'][1:-1])
self.s['pop'][self.s['counter']] = [
self.GEN, result, self.GENCOUNTER
]
self.GENCOUNTER += 1
self.s['counter'] += 1
return (result if result > 0 else 0, )
except:
self.s['pop'][self.s['counter']] = [
self.GEN, -0.5, self.GENCOUNTER
]
self.s['counter'] += 1
self.GENCOUNTER += 1
return (-0.5, )
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))
Cin = Cin.canonise()
print('L =', L)
print('Cout =', Cout)
print('Cint =', Cin)
circuit.V('in', 'in', circuit.gnd, Vin)
circuit.C('in', 'in', circuit.gnd, Cin)
# Fixme: out drop from 12V to 4V
# circuit.VCS('switch', 'gate', circuit.gnd, 'in', 'source', model='Switch', initial_state='off')
# circuit.Pulse('pulse', 'gate', circuit.gnd, 0@u_V, Vin, duty_cycle, period)
# circuit.model('Switch', 'SW', ron=1@u_mΩ, roff=10@u_MΩ)
# Fixme: Vgate => Vout ???
circuit.X('Q', 'irf150', 'in', 'gate', 'source')
# circuit.Pulse('pulse', 'gate', 'source', 0@u_V, Vin, duty_cycle, period)
circuit.R('gate', 'gate', 'clock', 1 @ u_Ω)
circuit.Pulse('pulse', 'clock', circuit.gnd, 0 @ u_V, 2. * Vin, duty_cycle,
period)
circuit.X('D', '1N5822', circuit.gnd, 'source')
circuit.L(1, 'source', 1, L)
circuit.R('L', 1, 'out', RL)
circuit.C(1, 'out', circuit.gnd, Cout) # , initial_condition=0@u_V
circuit.R('load', 'out', circuit.gnd, Rload)
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=period / 300, end_time=period * 150)
figure = plt.figure(1, (20, 10))
circuit.include(spice_library['1N4148'])
source = circuit.SinusoidalVoltageSource('input',
'in',
circuit.gnd,
amplitude=10 @ u_V,
frequency=50 @ u_Hz)
multiplier = 5
for i in range(multiplier):
if i:
top_node = i - 1
else:
top_node = 'in'
midlle_node, bottom_node = i + 1, i
circuit.C(i, top_node, midlle_node, 1 @ u_mF)
circuit.X(i, '1N4148', midlle_node, bottom_node)
circuit.R(1, multiplier, multiplier + 1, 1 @ u_MΩ)
simulator = circuit.simulator(temperature=25, nominal_temperature=25)
analysis = simulator.transient(step_time=source.period / 200,
end_time=source.period * 20)
####################################################################################################
figure = plt.figure(1, (20, 10))
axe = plt.subplot(111)
axe.set_title('Voltage Multiplier')
axe.set_xlabel('Time [s]')
axe.set_ylabel('Voltage [V]')
axe.grid()
from PySpice.Spice.Netlist import Circuit
from PySpice.Unit import *
libraries_path = find_libraries()
spice_library = SpiceLibrary(libraries_path)
figure1 = plt.figure(1, (20, 10))
circuit = Circuit('half-wave rectification')
circuit.include(spice_library['1N4148'])
source = circuit.SinusoidalVoltageSource('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))
from circuit_components import ParallelResistor
from PySpice.Spice.Netlist import Circuit, SubCircuit
from PySpice.Unit import *
circuit = Circuit('Test')
circuit.subcircuit(ParallelResistor(R2=3 @ u_Ω))
circuit.X('1', 'parallel_resistor', 1, circuit.gnd)
print(circuit)
'Out',
'vp+',
'vp-',
transconductance='{Gain}')
#Definition of the LSST thermal model circuit - One RAFT
circuit = Circuit("MainCryo")
#PI regulators
circuit.subcircuit(PI())
circuit.X(1,
'PI',
'CCDSetPoint',
'L3_CCD',
'HeaterCtrl',
K=par.KG1,
KI=par.KIG1,
AWG=par.AWG1,
MINV=par.MING1,
MAXV=par.MAXG1)
circuit.X(2,
'PI',
'PlateSetPoint',
'CryoPlate',
'PlateCtrl',
K=par.KG2,
KI=par.KIG2,
AWG=par.AWG2,
MINV=par.MING2,
MAXV=par.MAXG2)
circuit.X(3,
spice_library = SpiceLibrary(libraries_path)
####################################################################################################
#!# For this purpose, we use the common high-speed diode 1N4148. The diode is driven by a variable
#!# voltage source through a limiting current resistance.
#cm# diode-characteristic-curve-circuit.m4
circuit = Circuit('Diode Characteristic Curve')
circuit.include(spice_library['1N4148'])
circuit.V('input', 'in', circuit.gnd, 10 @ u_V)
circuit.R(1, 'in', 'out', 1 @ u_Ω) # not required for simulation
circuit.X('D1', '1N4148', 'out', circuit.gnd)
#!# We simulate the circuit at these temperatures: 0, 25 and 100 °C.
temperatures = [0, 25, 100] @ u_Degree
analyses = {}
for temperature in temperatures:
simulator = circuit.simulator(temperature=temperature,
nominal_temperature=temperature)
analysis = simulator.dc(Vinput=slice(-2, 5, .01))
analyses[float(temperature)] = analysis
####################################################################################################
#!# We plot the characteristic curve and compare it to the Shockley diode model:
#!#
D3 N003 A Def
D4 N003 0 Deg
R1 N001 N002 27.5
L1 N002 N003 0.5
.MODEL Def D
'''
circuit.SinusoidalVoltageSource('1',
'A',
circuit.gnd,
amplitude=220,
frequency=50)
subcir = BasicNonLinearLoad(r=27.5, l=0.5)
circuit.subcircuit(subcir)
circuit.X('1', 'BasicNonLinearLoad', 'A', circuit.gnd)
print(circuit)
print(subcir.getRValue())
print(subcir.getLValue())
simulator = circuit.simulator()
#enableLtSpice(simulator)
analysis = simulator.transient(step_time=1 @ u_ms, end_time=1 @ u_s)
current = analysis['V1']
aimax = np.amax(current.data)
aimin = np.amin(current.data)
print('Max Current: ', aimax)
print('Min Current: ', aimin)
