Difference between revisions of "Filter Pages and LTspice Goodies"
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|style="color:#007900"|<code>FFT</code>||actually a continuous-time Fourier decomposition, but <code style="color:green">FFT</code> is shorter | |style="color:#007900"|<code>FFT</code>||actually a continuous-time Fourier decomposition, but <code style="color:green">FFT</code> is shorter | ||
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− | |style="color:#007900"|<code>Filter</code>||a universal filter, [http://ltspicegoodies.ltwiki.org/Filter_Manual.html | + | |style="color:#007900"|<code>Filter</code>||a universal filter, with a separate section as the <font size="+1">[http://ltspicegoodies.ltwiki.org/Filter_Manual.html Filter manual]</font> |
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|style="color:#007900"|<code>FreqDet</code>||frequency detector | |style="color:#007900"|<code>FreqDet</code>||frequency detector |
Revision as of 06:03, 9 May 2014
Contents
Introduction
The following links contain macro models built for LTspice with the purpose of turning large-scale simulations into block-level schematics, similar to hierarchy design but with predefined models. The domains of interest include, but are not limited to, digital devices ([0101]), filtering and control theory ([Filt]), mathematics equations ([Math]), power electronics ([Pwr]). In addition, there is one more model, Filter, that is made to be a sort of a universal filter for LTspice.
The links go to an external site, for now hosted on the same http://ltwiki.org, until I fully merge all the pages to blend in with LTwiki. The lists describing the contents of every folder is limited to enumeration and a simple description, details are in the links.
This folder holds the following:
ADC16 |
an asynchronous (max) 16bit ADC |
Bin2Dec |
a binary to decimal translator |
CNT16asy |
an asynchronous (max) 16bit counter |
DAC16 |
a (max) 16bit DAC |
Dec2Bin |
a decimal to binary translator |
JKFLOP |
a behavioural JK flip-flop |
The contents of this folder is mixed filtering and control theory.
AGC |
an automatic gain controller w/out external frequency control |
DeadTime |
dead-time |
DeadZone |
dead-zone |
Delay |
analog -- exp(-sT) -- or digital -- z-1 -- delay
|
Diff |
differentiator |
FFT |
actually a continuous-time Fourier decomposition, but FFT is shorter
|
Filter |
a universal filter, with a separate section as the Filter manual |
FreqDet |
frequency detector |
Gain |
a linear/dB gain/buffer with variable output resistance |
Integ_r |
resettable integrator w/out external period control |
LeadLag, LeadLag2 |
two versions for a <-π..π> lead-lag control, w/out external control
|
Lim |
hard limitter |
MUX |
a simple externally controlled analog multiplexer |
PhaseDet |
phase detector |
PID |
a universal PID/PI/PD/ID/P/I/D analog/digital controller |
PLL |
a phase-locked loop with single/quadrature inputs |
SampledSource |
LTspice's own SINE and/or PULSE sources, sampled |
StateSpace |
1st/2nd/3rd order, SISO state-space block |
UpDnSpl |
.AC -friendly up-/down-sampler
|
LTspice's mathematical functions for behavioural sources plus a few others in a more accessible, streamlined package. There's no point in enumerating them since they're all packed into a specific symbol, depending on how many variables the functions allow.
[Pwr]
Except a few models, all are three-phase related.
3lvl_mod |
3-level modulation w/out external carrier and dead-time |
3ph_ACMotor |
a rather simplified DQ reference frame AC motor which allows either inductances/resistances or power/frequency inputs, respectively. |
3ph_br_cm, 3ph_br_vm |
current-/voltage-mode switching bridges |
3ph_gen |
harmonics generator up to 51st, w/out external amplitude/frequency/phase control |
3ph_SW |
3-phase to 3-phase timed switch |
BrdgRect, BrdgRectThy |
simple and thyristor bridge rectifiers |
Cable |
a simple Π LC with terminating resistances cable model |
Disturb |
disturbance inducer, meant to be used together with 3ph_gen , but not only
|
HystComp |
single-phase hysteresis comparator w/out external error control and dead-time |
Isense, Vsense |
isolated current and voltage sensors |
RLC |
universal RLC load, can be series or parallel, w/out null, wye or delta |
SVHCC, SVPWM |
space-vector hysteresis current controller and PWM, respectively |
sym |
symmetrical components analyzer, abc-to-120 and inverse |
Transforms |
Clarke and Park matrices, 2- or 3-inputs, direct and inverse, plus a cvasi-instantaneous approach for a symmetrical components analyzer |
WattMeter |
one-phase wattmeter, outputs apparent/active/reactive powers, power-factor and RMS voltage/current |
wt |
PLL angle generator |