importltspicefilepath='Your ltspice output file (.raw)'l=ltspice.Ltspice(filepath)
l.parse() # Data loading sequence. It may take few minutes.time=l.getTime()
V1=l.getData('V(N1)')
Test
01 - RC Circuit
LTSpice file (.asc)
Python code (.py)
importltspiceimportmatplotlib.pyplotaspltimportnumpyasnpimportosl=ltspice.Ltspice(os.path.dirname(__file__)+'\\01_RC_circuit.raw')
# Make sure that the .raw file is located in the correct pathl.parse()
time=l.getTime()
V_source=l.getData('V(source)')
V_cap=l.getData('V(cap)')
plt.plot(time, V_source)
plt.plot(time, V_cap)
plt.show()
Output result
02 - Multi point simulation
LTSpice file (.asc)
Python code (.py)
importltspiceimportmatplotlib.pyplotaspltimportnumpyasnpimportosl=ltspice.Ltspice(os.path.dirname(__file__)+'\\02_Rectifier.raw')
# Make sure that the .raw file is located in the correct pathl.parse()
time=l.getTime()
V_source=l.getData('V(source)')
V_cap_max= []
plt.plot(time, V_source)
foriinrange(l.c_number): # Iteration in simulation cases time=l.getTime(i)
# Case number starts from zero# Each case has different time point numbersV_cap=l.getData('V(cap,pgnd)',i)
V_cap_max.append(max(V_cap))
plt.plot(time, V_cap)
print(V_cap_max)
plt.xlim((0, 1e-3))
plt.ylim((-15, 15))
plt.grid()
plt.show()