Triode Curve Fitter
Nelder-Mead Simplex Optimization for Vacuum Tube Parameter Extraction
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Model Selection
Child-Langmuir
Koren
I
a
= K · (V
gk
+ D
a
· V
ak
)
3/2
K (initial)
D
a
(initial)
E
1
= (V
ak
/k
P
) · ln(1 + e
k
P
(1/μ + V
gk
/√(k
VB
+ V
ak
²))
)
I
a
= (E
1
X
/ k
G1
) · (1 + sgn(E
1
))
μ (mu, fixed)
X (initial)
k
G1
(initial)
k
P
(initial)
k
VB
(initial)
Optimizer Settings
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Tolerance
Step Size
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Results
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Curve Plot
V
ak
Max (V)
I
a
Max (A)
Model Name
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SPICE Model Output
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