51 lines
755 B
Python
51 lines
755 B
Python
from math import log
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L_n = 0.6E-6
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L_p = 0.6E-6
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K_n = 122E-6
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K_p = 61E-6
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C_ox = 33E-4
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V_tn = 0.7
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V_tp = -0.7
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# 2a
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V_gs = 5
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V_ds = 5
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V_dsat = V_gs - V_tn
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I_ds = 2.82E-3
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w_n = (2*I_ds*L_n) / (K_n * V_dsat**2)
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print("2a:", w_n)
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# 2b
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w_p = (2*I_ds*L_p) / (K_p * V_dsat**2)
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print("2b:", w_p)
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# 2c
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C_g = C_ox*w_n*L_n
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C_equiv = 12*C_g + 20E-15
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print("C_g:", C_g)
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print("C_equiv:", C_equiv)
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beta = K_n*w_n/L_n
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print("beta:", beta)
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I_sat = beta * (V_gs - V_tn)**2 / 2
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print("I_sat:", I_sat)
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t_sat = V_tn*C_equiv / I_sat
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print("t_sat:", t_sat)
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R = 10E3
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print("R:", R)
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tau = R*C_equiv
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print("tau:", tau)
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# v(t) = 0.5 = 4.3e^(-t/tau)
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t_lin = -tau*log(0.5/4.3)
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print("t_lin:", t_lin)
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t = t_lin + t_sat
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print("t:", t)
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# 2e
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t_pd = R*C_equiv
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print("t_pd:", t_pd)
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