Label, Resistor, Pin, Source, Wire)
from inform import Error, error, os_error
from quantiphy import Quantity
from math import pi
except ImportError:
print('Run `pip install --user -r requirements.txt`',
'to install missing packages.')
raise SystemExit
Quantity.set_prefs(map_sf=Quantity.map_sf_to_greek, prec=2)
globals().update(Quantity.extract(__doc__, predefined={'π': pi}))
try:
with Schematic(filename='mfed.svg', line_width=2, background='none'):
vin = Source(name='Vin', value='1 V', kind='sine')
Ground(C=vin.n)
rs = Resistor(name='Rs', value=Rref, n=vin.p, xoff=25)
Wire([vin.p, rs.n])
c1 = Capacitor(name='C1', value=C1, p=rs.p, xoff=25)
Ground(C=c1.n)
l2 = Inductor(name='L2', value=L2, n=c1.p, xoff=25)
Wire([rs.p, l2.n])
c3 = Capacitor(name='C3', value=C3, p=l2.p, xoff=25)
Ground(C=c3.n)
l4 = Inductor(name='L4', value=L4, n=c3.p, xoff=25)
Wire([l2.p, l4.n])
c5 = Capacitor(name='C5', value=C5, p=l4.p, xoff=25)
Ground(C=c5.n)
rl = Resistor(name='Rl', value=Rref, p=c5.p, xoff=100, orient='v')
Ground(C=rl.n)
#!/usr/bin/env python3
from svg_schematic import (Schematic, Amp, Dot, Ground, Label, Pin, Resistor,
Source, Wire)
from inform import Error, error, os_error
try:
with Schematic(filename="noninverting.svg", line_width=2):
vin = Source(kind='sine')
Label(C=vin.p, name='Vin', loc='n')
Ground(C=vin.n)
amp = Amp(pi=vin.p, xoff=100, kind='oa')
Label(C=amp.ni, xoff=-25, name='Vf', loc='n')
Wire([vin.p, amp.pi])
out = Pin(C=amp.o, xoff=50, name='out', w=2)
Wire([amp.o, out.C])
oj = Dot(C=amp.o, xoff=25)
r1 = Resistor(p=amp.ni, off=(-25, 50), name='R1', orient='v')
Wire([r1.N, amp.ni], kind='|-')
r2 = Resistor(C=amp.C, yoff=75, name='R2')
Wire([r1.p, r2.W], kind='|-')
Wire([oj.C, r2.E], kind='|-')
fj = Dot(C=r2.W, xoff=-25)
Ground(C=r1.n)
except Error as e:
e.report()
except OSError as e:
error(os_error(e))
from svg_schematic import Schematic, Source, Label
from inform import Error, error, os_error
try:
with Schematic(filename = 'source.svg'):
s = Source(kind='empty', name='Ve')
Label(C=s.p, name='p', loc='w', kind='dot', color='blue', w=2)
Label(C=s.n, name='n', loc='w', kind='dot', color='blue', w=2)
s = Source(kind='vdc', name='Vd', C=s.C, xoff=150)
Label(C=s.p, name='p', loc='w', kind='dot', color='blue', w=2)
Label(C=s.n, name='n', loc='w', kind='dot', color='blue', w=2)
s = Source(kind='idc', name='Id', C=s.C, xoff=150)
Label(C=s.p, name='p', loc='w', kind='dot', color='blue', w=2)
Label(C=s.n, name='n', loc='w', kind='dot', color='blue', w=2)
s = Source(kind='sine', name='Vs', C=s.C, xoff=150)
Label(C=s.p, name='p', loc='w', kind='dot', color='blue', w=2)
Label(C=s.n, name='n', loc='w', kind='dot', color='blue', w=2)
s = Source(kind='sum', name='S', yoff=150)
Label(C=s.p, name='p', loc='w', kind='dot', color='blue', w=2)
Label(C=s.n, name='n', loc='w', kind='dot', color='blue', w=2)
s = Source(kind='mult', name='M', C=s.C, xoff=150)
Label(C=s.p, name='p', loc='w', kind='dot', color='blue', w=2)
Label(C=s.n, name='n', loc='w', kind='dot', color='blue', w=2)
s = Source(kind='cv', name='Vc', C=s.C, xoff=150)
Label(C=s.p, name='p', loc='w', kind='dot', color='blue', w=2)
# Generates schematic as an .svg file.
# Requires svg_schematic:
# git clone https://github.com/KenKundert/svg_schematic.git
# cd svg-schematic
# python3 setup.py --user --upgrade install
from svg_schematic import (Schematic, shift, shift_x, shift_y, midpoint, Box,
Ground, Label, Source, Wire)
with Schematic(filename="msnm.svg"):
v = Source(kind='noise', value='S(f)', orient='v')
Ground(C=v.n, orient='v')
m = Source(C=shift_x(v.p, 200), kind='mult')
Wire([v.p, m.W])
wm = Wire([m.S, shift_y(m.S, 25)])
Label(C=wm.e, loc='S', name='m(t)')
Label(C=midpoint(v.p, m.W), loc='N', name='stationary noise')
wo = Wire([m.E, shift_x(m.E, 210)])
Label(C=wo.e, kind='arrow', loc='NW', name='cyclostationary noise')
Box(C=shift(v.C, 100, -3),
w=5.5,
h=3.2,
line_width=0.5,
background='none',
stroke_dasharray="4 2")
l = Label(C=rf_bpf.S, loc='s', name='fc=1380MHz')
Label(C=l.S, name='BW=320MHz')
Wire([rf_preamp2.o, rf_bpf.i])
# First RF amplifier
rf_amp1 = Amp(i=rf_bpf.o, xoff=25, kind='se', name='RF Amp1')
Label(C=rf_amp1.S, loc='s', name='A<=20dB')
Wire([rf_bpf.o, rf_amp1.i])
# Second RF amplifier
rf_amp2 = Amp(i=rf_amp1.o, xoff=25, kind='se', name='RF Amp2')
Label(C=rf_amp2.S, loc='s', name='A<=20dB')
Wire([rf_amp1.o, rf_amp2.i])
# RF mixer
rf_mixer = Source(W=rf_amp2.o, xoff=25, kind='mult')
Label(C=rf_mixer.N, loc='n', name='DSB')
Wire([rf_amp2.o, rf_mixer.W])
# RF local oscillator
rf_lo = Source(p=rf_mixer.S,
yoff=50,
kind='sine',
name='fo=1230MHz',
value='P=10dBm')
Ground(t=rf_lo.n)
Wire([rf_mixer.S, rf_lo.N])
# IF band-pass filter
if_bpf = Box(i=rf_mixer.E, xoff=25, name='IF BPF')
l = Label(C=if_bpf.S, loc='s', name='fc=190MHz')
try:
with Schematic(filename='pipeline-adc.svg', line_width=2):
# Stage 1
i = Pin(kind='in', name='in')
s1 = Box(NW=i.t,
off=(25, -62.5),
w=10.5,
h=4.5,
background='lightgray')
Label(C=s1.SE, loc='nw', name='Stage 1')
adc = Box(W=i.t, off=(75, 100), name='2 bit', value='Flash')
dac = Box(i=adc.o, xoff=50, name='2 bit', value='DAC')
sh = Box(C=with_x(i.t, midpoint(adc.C, dac.C)), name='SAH')
sum = Source(W=with_x(i.t, dac.E), xoff=25, kind='sum', orient='h|')
Label(C=sum.W, loc='nw', name='+')
Label(C=sum.S, loc='se', name='−')
amp = Amp(i=sum.E, xoff=25, kind='se', name='4×')
Wire([i.t, sh.i])
Wire([sh.o, sum.W])
Wire([sum.E, amp.i])
Wire([shift_x(i.t, 50), adc.i], kind='|-')
Wire([adc.o, dac.i])
Wire([dac.o, sum.S], kind='-|')
# Stages 2, 3, 4
s2 = Box(N=dac.S, off=(25, 75), name='Stage 2')
s3 = Box(W=s2.E, xoff=50, name='Stage 3')
s4 = Box(W=s3.E, xoff=50, name='4 bit', value='Flash')
Wire([s2.o, s3.i])
Wire([ll.n, c.p])
Wire([lr.n, c.n])
# gain stage
ml = MOS(d=ll.n, yoff=75, orient='|')
mr = MOS(d=lr.n, yoff=75, orient='')
Wire([ll.n, ml.d])
Wire([lr.n, mr.d])
Wire([
ml.g,
shift_y(ml.g, -25),
shift(ml.g, 50, -75),
shift_y(lr.n, 50)
])
Wire([
mr.g,
shift_y(mr.g, -25),
shift(mr.g, -50, -75),
shift_y(ll.n, 50)
])
Wire([ml.s, shift_y(ml.s, 12), shift_y(mr.s, 12), mr.s])
Source(p=midpoint(ml.s, mr.s),
yoff=12,
kind='idc',
value=r'$I_{\rm ss}$')
except Error as e:
e.report()
except OSError as e:
error(os_error(e))
#!/usr/bin/env python3
from svg_schematic import Schematic, Amp, Box, Label, Pin, Source, Wire, shift_x
from inform import Error, error, os_error
try:
with Schematic(
filename = "feedback.svg",
font_size=16,
font_family='serif'
):
summer = Source(kind='sum')
amp = Amp(W=summer.E, xoff=25, name='$a$', kind='se')
fb = Box(C=amp.C, yoff=100, name='$f$', h=1, orient='|')
Label(C=summer.W, name='$+$', loc='nw')
Label(C=summer.S, name='$-$', loc='sw')
i = Pin(C=summer.W, xoff=-50, name='in', kind='in')
o = Pin(C=amp.E, xoff=50, name='out', kind='out')
Wire([i.C, summer.W])
Wire([summer.E, amp.i])
Wire([amp.E, o.C])
Wire([shift_x(amp.E, 25), fb.i], kind='|-')
Wire([summer.S, fb.W], kind='|-')
except Error as e:
e.report()
except OSError as e:
error(os_error(e))