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ngspice-26: update documentation

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h_vogt
2014-01-11 16:24:37 +01:00
committed by rlar
parent b19641dcc2
commit 8c99ec76f4
10 changed files with 168 additions and 121 deletions
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ANALYSES
+14 -7
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@@ -8,9 +8,10 @@ This file lists the analyses currently implemented into ngspice.
Table of Contents
1 Noise analysis (NOISE)
1.1 Small signal noise
1.2 Transient noise
2 Operating point analysis (OP)
3 Operating point sweep Analysis (DC)
3.1 Enhancements
4 Pole-zero analysis (PZ)
5 Small-Signal distortion analysis (DISTO)
6 Small Signal frequency response analysis (AC)
@@ -23,6 +24,8 @@ Table of Contents
1 Noise analysis (NOISE)
1.1 Small signal noise
The noise analysis does analysis device-generated noise for the given
circuit. When provided with an input source and an output port, the analysis
calculates the noise contributions of each device (and each noise generator
@@ -32,6 +35,12 @@ Table of Contents
range - the calculated value of the noise corresponds to the spectral density
of the circuit variable viewed as a stationary gaussian stochastic process.
1.2 Transient noise
Time domain noise analysis during transient simulation is enabled by
providing voltage (and current) source options with white, 1/f and
random telegraph signal noise signals.
2 Operating point analysis (OP)
@@ -44,11 +53,8 @@ Table of Contents
The operating point sweep analysis determines the values of output
variables while one or two specified independent voltage or current source is
stepped over a user-specified range and the dc output variables are stored
for each sequential source value.
3.1 Enhancements
Added resistance and temperature sweep.
for each sequential source value. Resistance and temperature sweep are
included.
4 Pole-zero analysis (PZ)
@@ -57,7 +63,8 @@ Table of Contents
ac transfer function. The program first computes the dc operating point and
then determines the linearized, small-signal models for all the nonlinear
devices in the circuit. This circuit is then used to find the poles and zeros
of the transfer function.
of the transfer function. Unfortunately this code is (since its inception in
spice3) not free of bugs.
5 Small-Signal distortion analysis (DISTO)