import numpy as np import matplotlib.pyplot as plt e_0 = 8.85E-14 k_ox = 3.9 e_ox = e_0 * k_ox mu = 350 # 350 cm^2 / (V*s) t_ox = 100E-8 # 100A C_ox = e_ox / t_ox W = 1.2 L = 0.6 beta = mu * C_ox * W/L V_t = 0.7 def I_ds(V_gs, V_ds, V_t, beta): if V_gs < V_t: return np.zeros_like(V_ds) V_dsat = V_gs - V_t return np.where(V_ds < V_dsat, beta * (V_gs - V_t - V_ds/2) * V_ds, beta * (V_gs - V_t)**2 / 2) V_g = 0.8 V_d1 = 1 V_s1 =