def test_forwardBiasSeries(self):
Vf = 0.6
Rf = 10
D1 = Diode.Diode(Vf, Rf)
D2 = Diode.Diode(Vf, Rf)
R = resistor.Resistor(100000)
gnd = AbsoluteVoltage.AbsoluteVoltage(0.0, name="gnd")
j = Junction.Junction()
k = Junction.Junction()
#Vcc=VoltageSource.VoltageSource(5.0,name="Vcc")
Vcc = AbsoluteVoltage.AbsoluteVoltage(5.0, name="Vcc")
probe = VoltageProbe.VoltageProbe()
#Vcc.connect(R,"positive")
#Vcc.connect(gnd,"negative")
Vcc.connect(R)
R.connect(j)
D1.connect(j, "anode")
D1.connect(k, "cathode")
D2.connect(k, "anode")
D2.connect(gnd, "cathode")
probe.connect(j)
import Infrastructure.graph as graph
graph.graph(j).output("../junk/diode.gv")
print probe.getVoltageResistance()
def test_reverseBias(self):
D = Diode.Diode()
R = resistor.Resistor(1000000)
gnd = AbsoluteVoltage.AbsoluteVoltage(0.0, name="gnd")
j = Junction.Junction()
#Vcc=VoltageSource.VoltageSource(5.0,name="Vcc")
Vcc = AbsoluteVoltage.AbsoluteVoltage(5.0, name="Vcc")
probe = VoltageProbe.VoltageProbe()
#Vcc.connect(R,"positive")
#Vcc.connect(gnd,"negative")
Vcc.connect(R)
R.connect(j)
D.connect(j, "cathode")
D.connect(gnd, "anode")
probe.connect(j)
print probe.getVoltageResistance()
def test_TwoVoltageSources(self):
V1 = VoltageSource.VoltageSource(5, name="SRC")
V2 = VoltageSource.VoltageSource(5, name="SRC")
gnd = AbsoluteVoltage.AbsoluteVoltage(0, name="gnd")
probe = VoltageProbe.VoltageProbe(name="probe")
j = Junction.Junction()
V1.connect(gnd, "negative")
V1.connect(j, "positive")
V2.connect(j, "negative")
V2.connect(probe, "positive")
self.assertEqual(probe.getVoltageResistance(), (10.0, 0.0))
def twoResistorDivider(self, R1, R2, V):
src = AbsoluteVoltage.AbsoluteVoltage(V, name="Vcc")
gnd = AbsoluteVoltage.AbsoluteVoltage(0, name="GND")
probe = VoltageProbe.VoltageProbe()
j = Junction.Junction(name="Joint")
R = resistor.Resistor(R1, name="R1")
S = resistor.Resistor(R2, name="R2")
R.connect(src)
R.connect(j)
probe.connect(j)
S.connect(j)
S.connect(gnd)
return probe.getVoltageResistance()
def test_ProbeReturnsCorrectValue(self):
src = AbsoluteVoltage.AbsoluteVoltage(5, name="Vcc")
gnd = AbsoluteVoltage.AbsoluteVoltage(0, name="GND")
probe = VoltageProbe.VoltageProbe()
j = Junction.Junction(name="Joint")
R = resistor.Resistor(1000, name="R1")
S = resistor.Resistor(1000, name="R2")
R.connect(src)
R.connect(j)
S.connect(j)
S.connect(gnd)
probe.connect(j)
atJ = j.getVoltageResistance()
atProbe = probe.getVoltageResistance()
def test_ProbeInfluence(self):
src = AbsoluteVoltage.AbsoluteVoltage(5, name="Vcc")
gnd = AbsoluteVoltage.AbsoluteVoltage(0, name="GND")
probe = VoltageProbe.VoltageProbe()
j = Junction.Junction(name="Joint")
R = resistor.Resistor(1000, name="R1")
S = resistor.Resistor(1000, name="R2")
R.connect(src)
R.connect(j)
S.connect(j)
S.connect(gnd)
before = j.getVoltageResistance()
probe.connect(j)
after = j.getVoltageResistance()