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Spicy Schematics - ischematics.com
SPICY is fast, intuitive, andallows you to literally drawcircuits with your fingers.Create, save,...
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SPICY is fast, intuitive, and allows you to literally draw circuits with your fingers.
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To learn the differences between SWAN and Spice, here the new
link : https://docs.google.com/file/d/0Bx-
ZqV10CSiNTmxPM0RjTmZNSEE/edit
2013_SpicySWAN_CONCEPTS.pdf - Google Drive
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Spicy Schematics -
ischematics.com
Results of comparison between
delayed VCCS and H(z)
implementations of a digital
integrator,T=10ns SINE INPUT
F=100KHz
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From my IPad mini SPICY FREE, SWAN SIM of 91m RG58 c…
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VOUT vs VIN CIRCULAR ORBITS of previous Digital Integrators.
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Spicy Schematics - ischematics.com
Yesterday
Results of comparison between delayed VCCS and H(z)
implementations of a digital integrator,T=10ns SINE INPUT
F=100KHz
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Piero Belforte SWAN/DWV multiplot of I/Os and difference signal.
Yesterday at 12:57am · Like
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Spicy Schematics - ischematics.com
Yesterday
Results of comparison between delayed VCCS and H(z)
implementations of a digital integrator,T=10ns SINE INPUT
F=100KHz
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Piero Belforte Here the sim report:
https://www.ischematics.com/webspicy/report.py?
RCODE=72750753165234277247a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
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Spicy Schematics - ischematics.com
Yesterday
Sampled digital domain (SWAN) : Comparison between delayed
VCCS and H(z) implementations of a digital integrator,T=10ns
SINE INPUT F=100KHz
Spicy Schematics - ischematics.com
Tuesday
SWAN: unit step response of H(s) = 1/s (ideal integrator) transfer
function.
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Piero Belforte Here the sim report:
https://www.ischematics.com/webspicy/report.py?
RCODE=46865034100207800187a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
Tuesday at 7:48am · Like · Remove Preview
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Tuesday
Very nonlinear source example built from trig expressions in spice
... see example page for more.
http://www.ischematics.com/example.html
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Spicy Schematics - ischematics.com
Tuesday
Here the SWAN sim results of the previous FI setup.
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Piero Belforte The unefectiveness of the brutal short circuit to
ground is evident: the output of the clock receiver continues to
switch despite the 9 cm wire shorting the clock net to ground.
Tuesday at 12:36am · Like
Piero Belforte The duty cycle of the clock waveform is affected
but a digital circuit connected to this clock signal can continue to
work normally.
Tuesday at 12:37am · Like
Piero Belforte Here the sim report link:
https://www.ischematics.com/webspicy/report.py?
RCODE=40077021872863355808a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
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Spicy Schematics - ischematics.com
Tuesday
A practical application of the BTM wire model: brute force fault
insertion on a high-speed clock interconnect (2Ghz).
Spicy Schematics - ischematics.com
Monday
SWAN sim results of the previous setup (reflected waves).
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Piero Belforte The 2Ghz interconnect model is oversimplified just
to show the principles. The digital receiver model is also very
simple( .5 switching threshold) and 1pF in capacitance.
Tuesday at 12:28am · Like
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Piero Belforte Despite the optimized values of both TL (30 ohm ,
10ps) and inductance L (70nH) values, the BTM response is the
most accurate.
Tuesday at 12:04am · Like
Piero Belforte Only SWAN supports BTM modelling.
Tuesday at 12:04am · Like
Piero Belforte Here the sim report of the setup:
https://www.ischematics.com/webspicy/report.py?
RCODE=64354725122287810260a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
Tuesday at 12:08am · Like · Remove Preview
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Monday
This SWAN setup compares the BTM model of the wire loop to an
optimized (L+TL) circuital model.
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Song Juh Janson Ja que funtion cumple este circuito?
See Translation
Tuesday at 1:32am · Like
Piero Belforte This circuit simply compares the BTM model of the
wire with its electrical equivalent, giving also the difference
between the TDR response of both implementations. Obviously BTM
model is more realistic and accurate that the circuital model (see
previous posts).
Tuesday at 7:01am · Like
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Spicy Schematics - ischematics.com
Monday
PWL fitting of CSA803 response of the 9cm wire loop.
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Piero Belforte By means of this simple procedure an accurate
Behavioral Time Model (BTM) of the wire loop is build up in SWAN
mode. This model has an equivalent bandwith of 20Ghz (bandwith of
the CSA803).
Monday at 11:45pm · Like
Oswaldo Cano Is this a Sim vs. Meas wfm overlay correlation?
Tuesday at 3:24am via mobile · Like
Spicy Schematics - ischematics.com Yes, prctically it is. Here
the pwl extraction is shown, and the resulting BTM model response
is the same. See also following posts.
Tuesday at 6:57am · Like
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Spicy Schematics - ischematics.com
Monday
One-port TDR (CSA803) characterization of a 9cm long AWG18
wire loop.
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Spicy Schematics - ischematics.com The wire loop is shorted
to ground of the support p.c.b.
Monday at 11:33pm · Like
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Spicy Schematics - ischematics.com
February 16
VOUT and power at capacitor C0 spectra of the WIEN oscillator
are shown here.
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Spicy Schematics - ischematics.com Accurate signal spectra
can be obtained thanks to the huge number of samples coming
from DSP (Digital Signal Processing) SWAN sims. The same thing
doesn't apply to Spice and NA (Nodal Analysis) circuit simulation tools.
February 16 at 4:12pm · Edited · Like
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Spicy Schematics - ischematics.com shared a link.
February 16
Here you will find the sim report of WIEN OSCILLATOR:
https://www.ischematics.com/webspicy/report.py?
RCODE=28008276605001616111a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic Capture for Tablet and
Web - works with iPad, Web - Homepage
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Spicy Schematics - ischematics.com This circuit as the other
discussed in this group can be downloaded from the SWANEX On
Line Circuit Library of Spicy SWAN both on WEB and Ipad apps.
February 16 at 3:04pm · Like
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Spicy Schematics - ischematics.com
February 16
Here a collage of SWAN sim results of the WIEN OSCILLATOR.
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Spicy Schematics - ischematics.com
February 16
A WIEN oscillator in SWAN mode.
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Spicy Schematics - ischematics.com A WIEN oscillator utilizing a
SWAN macromodel of the operational amplifier(uA741).This model includes
two poles, slew rate limiting and DELAY (100ns).
February 16 at 11:52am · Like
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Spicy Schematics - ischematics.com
February 14
Voltage waveform spectrum of the nonlinear LC oscillator.
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Piero Belforte The harmonic content generated by nonlinearities
of capacitance is very evident in the spectrum.
February 14 at 6:45pm · Like
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February 14
V-I orbits related to previous nonlinear LC free-running oscillator.
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Piero Belforte The orbits are not elliptical due to capacitor's non
linearities.
February 14 at 6:33pm · Like
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February 14
SWAN mode simulated voltage waveform related to nonlinear LC
oscillator.
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Piero Belforte Waveform distortion with respect a sinusoidal
behavior due to capacitor's non linearities is very evident.
February 14 at 6:32pm · Like
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Spicy Schematics - ischematics.com
February 14
Free running LC oscillator with NON LINEAR capacitor.
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February 14
Response of previous RC circuit with nonlinear C.
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Spicy Schematics - ischematics.com
February 13
SWAN model of a NONLINEAR CAPACITOR from its basic
differential equation.
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Spicy Schematics - ischematics.com
February 13
Sim results of previous system solver icluding XY trajectories.
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Spicy Schematics - ischematics.com
February 13
Here the sim results: the unknowns X Y and Z are plotted versus
time.
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Spicy Schematics - ischematics.com
February 13
Another example of how SWAN can be used to solve a higher
order system of nonlinear differential equations.
Spicy Schematics - ischematics.com
February 12
Spicy SWAN Interworking between PC and Ipad Mini.
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Spicy Schematics - ischematics.com The LORENZ equation
diagram developed and simulated on the Ipad mini with Spicy SWAN
app is exported as netlist on the PC. The resident SWAN app running
on the PC exploits DWV (Digital Wave Viewer) plotting features to
show XY trajectories of Lorenz attractor.
February 12 at 11:29am · Edited · Like
Spicy Schematics - ischematics.com Spicy SWAN gives the
users the ULTIMATE and UNIQUE solution to CIRCUITAL
SIMULATION with the advantages of mobile and low price!
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Spicy Schematics - ischematics.com
February 10
Sim result of previous LORENZ ATTRACTOR computational blocks
diagram as XY trajectory
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Piero Belforte Here the variable Z (Y axis) is plotted versus X
(X.axis). A typical Lorenz orbit is obtained:
http://en.wikipedia.org/wiki/Lorenz_system
Lorenz system - Wikipedia, the free
encyclopedia
en.wikipedia.org
The Lorenz system is a system of ordinary
differential equations (the Lorenz equ...See More
February 10 at 1:25pm · Like · Remove Preview
Piero Belforte Interesting video here:
http://www.youtube.com/watch?v=EF5Wvi_Iiy4
An Introduction to Chaos Theory
with the Lorenz Attractor
www.youtube.com
The Lorenz Attractor is likely the most
commonly used example of Chaos
Theory. T...See More
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February 10
LORENZ ATTRACTOR implementation in SWAN mode.
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Piero Belforte In the schematic the values of constants are:
rho=28, sigma=10 and beta=8/3 that assure a CHATIC behavior.
February 10 at 1:04pm · Like
Piero Belforte http://en.wikipedia.org/wiki/Lorenz_system
Lorenz system - Wikipedia, the free
encyclopedia
en.wikipedia.org
The Lorenz system is a system of ordinary
differential equations (the Lorenz equ...See More
February 10 at 1:26pm · Like · Remove Preview
Write a comment... Spicy Schematics - ischematics.com
February 9
fyi, we have two new libraries of examples in the Online Circuit
Library within Spicy .. There are buttons there to open them
easily and you can download the circuits .. note that this is
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available now on Spicy for web, but not yet in the ipad version,
we are waiting for Apple to approve the latest release
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February 9
INTEGRATORS error (difference between opamp and ideal
integrator) changing opamp parameters.
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이명래 likes this.
Piero Belforte Here I tried to increase the outpput resstance of
the opamp fro 1 to 100 ohms, and I/O DELAY from 100ns to 200ns.
February 9 at 4:24pm · Like
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Spicy Schematics - ischematics.com
February 9
Here the detailed view of the difference between the output
voltages of the two models.
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이명래 likes this.
Piero Belforte here the related Spicy SWAN report:
https://www.ischematics.com/webspicy/report.py?
RCODE=03645137430480008614a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
February 9 at 3:15pm · Like · Remove Preview
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February 9
Here the result plots of the INTEGRATORS circuit.
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Spicy Schematics - ischematics.com
February 9
SWAN simulation and comparison of two INTEGRATOR models.
Spicy Schematics - ischematics.com
February 8
Here the digital mode plot of previous example.
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이명래 likes this.
Spicy Schematics - ischematics.com This circuit is already
available in the SWANEX library accessible from the SpicySWAN
apps.
February 9 at 2:44pm · Like
Piero Belforte The comparison is between an opamp and exact
cap
charge macromodels. Voltage and currents
clampling due to finite supply are modeled by PWL behaviors. Opamp
delay and slew rate can be also taken into account.
February 9 at 3:10pm · Like
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Spicy Schematics - ischematics.com
February 8
A very simple 3-input AND circuit implemented using SWAN
voltage
controlled switches with switching threshold of .5V
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Piero Belforte The swictches here are ideal (delay virtually 0).
February 8 at 7:58pm · Like
Spicy Schematics - ischematics.com Here the rellated sim
report: https://www.ischematics.com/webspicy/report.py?
RCODE=08645812281442375800a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
February 8 at 7:59pm · Like · Remove Preview
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Spicy Schematics - ischematics.com
February 7
Here the chaotic V-I orbits related to RLDIODE CIRCUIT (SWAN
mode,DWV plot)
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Oswaldo Cano likes this.
Oswaldo Cano On the same page, what about a Lorentz
attractor simulation?
February 7 at 4:40am · Like
Spicy Schematics - ischematics.com Starting from an
electrical circuit that implements the Lorentz equation, sit is possible
for sure with SWAN. In the past I implemented several new Chaotic
circuits using SWAN/DWS .
February 7 at 7:34am · Like
Spicy Schematics - ischematics.com Here an example of a
Lorentz circuit implementation:
http://frank.harvard.edu/~paulh/misc/lorenz.htm
build a lorenz attractor -- electronic
circuit -- chaos
frank.harvard.edu
February 7 at 7:35am · Like · Remove Preview
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Spicy Schematics - ischematics.com An here the orbits a
new chaotic circuit (I called it winding chaos) I discoverd about 1
year ago using DWS: http://www.youtube.com/watch?
v=HktyaWhySC4
WINDING CHAOS by DWS
www.youtube.com
CHAOTIC COLLECTION OF IMAGES
COMING FROM DWS SIMULATION OF A
NEW CLASS OF CHAOTIC CIRCUITS
DISCOVERED BY PIERO BELFORTE
February 7 at 7:37am · Like · Remove Preview
Piero Belforte The Lorentz attractor circuital implementation
recalled in the previous post can be easily implemented in SWAN
mode...if someone would like to try...
February 7 at 2:28pm · Like
Spicy Schematics - ischematics.com About Lorenz attractor
simulation, it has been done, see next posts. It is now amongthe
Spicy SWAN public examples and can be simulated directly by the
userrs both on WEB and on Ipad.
February 13 at 6:40pm · Like
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Spicy Schematics - ischematics.com
February 7
Here the sim result comparison of previous RLDIODE circuit sims
in SWAN vs Spice modes.
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February 6
A very simple RL DIODE circuit showing a CHAOTIC behavior
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Piero Belforte This circut as many others already discussed on
this group are among the SWAN examples available in Spicy SWAN
application (web and mobile).
February 7 at 12:06am · Like
Piero Belforte updated report here:
https://www.ischematics.com/webspicy/report.py?
RCODE=54828777601456614766a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
February 7 at 11:28am · Like · Remove Preview
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Spicy Schematics - ischematics.com
February 5
Plots of SWAN errors vs tstep values for the 50Mhz LC oscillator.
Spicy Schematics - ischematics.com
February 5
This collage shows the comparison between Spice and SWAN
modes when simulating the previous free-running 50Mhz LC
oscillator.
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Piero Belforte These comparative DWV plots report the behavior
of errors on a 100us (50K oscillations) time window after oscillator's
start up, for various chices of the simulation time steps (SWAN mode).
February 5 at 2:38pm · Edited · Like
Piero Belforte Increasing the time step over 1ps the peak-to-
peak max amplitude of the error increases. At 100fs time step,
70us after start up the error increases an gets larger than 1ps step
value (49uVpp max at t=0). This effect can be due to rounding errors
effects due to huge number of calculated samples when working at
100fs step (1 BILLION SAMPLES on a 100us window).
February 5 at 3:02pm · Edited · Like
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Piero Belforte The free running LC oscillator output is compare to
a reference sinusoidal voltage source VREF (frq.=50Mhz) in order
to monitor the error between the voltage at the oscillator's out and
the reference.
February 5 at 12:44pm · Like
Piero Belforte On the top right the Spice error result is reported.
SWAN mode result is at the bottom. The window is 100ns from 9.9
to 10us after start up. The error trace is in BLUE.
February 5 at 1:08pm · Edited · Like
Piero Belforte It easy to notice that after 20us of free
oscillations (1000 oscillations) the Spice error is about 1Vpp
because the oscillator signal has shifted accumulating a 1/4 period
delay (about 5ns).
February 5 at 12:51pm · Edited · Like
Piero Belforte In SWAN mode, on the contrary, working at 1ps
tstep, the two waveforms (oscillator & ref) are still perfectly
aligned. The amplitude error is on the order of 44 MICROVOLTS to be
compared to 1VPP of Spice. SWAN amplitude error is 88db lower than
Spice error.
February 5 at 12:59pm · Like
Piero Belforte Hoping that the sin function is more accurate than
SWAN output!
February 5 at 2:27pm · Like
Piero Belforte Spice vs SWAN comparison here is like the
difference between frequency stabilty of a free-running oscillator
vs a QUARTZ crystal oscillator.
February 5 at 2:29pm · Like
Piero Belforte I'd like to notice that the peak amplitude of
oscillator's voltage (VOSC) is very close to theoretical value
pi/10and results with a 10mA intial current flowing in the inductor L
(1uH) and a value of capacitor C proportional to 1/pi**2.
February 5 at 3:13pm · Edited · Like
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Spicy Schematics - ischematics.com commented on a link.
February 5
Accuracy comparison between Spice mode and SWAN mode for a LC free
running oscillator (50Mhz) compared to a sin source (to be run in Spce and
SWAN mode for comaparison) https://www.ischematics.com/webspicy/
report.py?RCODE=26441004771723520648a#newwin.
Spicy Schematics
www.ischematics.com
Spicy Schematics - Electronic Circuit
Schematic Capture for Tablet and Web -
works with iPad, Web - Chat!
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Spicy Schematics - ischematics.com
February 4
Here the frequency spectrum of the voltage of the 50Mhz
oscillator (SWAN mode).
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Spicy Schematics - ischematics.com shared a link.
February 4
Here the SWAN mode report of he simplest LC 50Mhz free
oscillator.
https://www.ischematics.com/webspicy/report.py?
RCODE=62433800025120153633a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
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Piero Belforte In Spice mode, the zero crossing error is about
18uV after 1us (max allowable due to sim time), abut 50X SWAN
mode (on a time point 50X larger).
February 4 at 4:29pm · Edited · Like
Piero Belforte So even in this case the oustanding performance
of SWAN over Spice is demonstrated: at least 50X faster AND 50X
more accurate, that gives a 2500 FIGURE of MERIT SWAN/Spice even
in this extremely simple case.
February 4 at 4:31pm · Like
Chat (3)
Earlier in 2013
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Piero Belforte This spectrum was obtained from 2Megasamples of
the SWAN sim performing a 4096 point FFT available in DWV.
February 4 at 4:08pm · Like
Piero Belforte 120 db in amplitude of S/N ratio, depending also
on the finite time duration (1us) chosen, that means 1e6 on a linear
scale.
February 4 at 4:45pm · Edited · Like
Piero Belforte This agrees with the .43uv zero crossing error.
February 4 at 4:47pm · Edited · Like
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February 2
SWAN mode: frequency response of the previous CHAIN TEN 5th-
ORDER LOW-PASS CHEBYSHEV FILTERS ( wc = 10MEGRAD, fc =
1.59MHz ).
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Piero Belforte This freqeuncy response has been obtained as
FFT (Fast Fourier Tranform) of IMPULSE RESPONSE of the circuit
under analysis.
February 2 at 5:16pm · Edited · Like
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Spicy Schematics - ischematics.com shared a link.
February 1
SWAN mode STEP RESPONSE OF A CHAIN of LOW-PASS TEN
5th-ORDER LOW-PASS CHEBYSHEV FILTERS ( wc = 10MEGRAD,
fc = 1.59MHz ). The filters transfer functions are described by
their poles in the S-PLANE.
https://www.ischematics.com/webspicy/report.py?
RCODE=31843823081086012466a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
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Piero Belforte As known, Spice can have problems dealing with s-
plane transfer functions due to variable time-step. SWAN mode
doesn't suffer of these issues because it works at FIXED time -step.
February 1 at 3:19pm · Like
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Spicy Schematics - ischematics.com shared a link.
February 1
Here you can find a SCREENSHOT GALLERY related to
SWAN/DWS sims in several fields of application, recently carried
out by Piero:
https://picasaweb.google.com/118285010585894969594/DWSIM
AGES#5729896428676687522
DWS IMAGES
picasaweb.google.com
Photos by piero belforte, Mar 29, 2012 - Selection
of DWS (Digital Wave Simulator) Screenshots by
Piero Belforte
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February 1
Congratulations Spicy, we now hit 200 FB likes! Thanks everyone
... remember if you like Spicy, please help by posting a good
review on itunes .. it helps us support development of the app ..
we have only a handful of reviews and most of the time from the
few who wanted something else and were not happy ... but 200
FB likes means maybe we can get 200 good reviews on itunes!
That would help us out a lot ... just go to itunes, search
ischematics.com, and you can review the free, or full or now
swan versions, which ever you like .. (or review all if you like) ...
:)
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Spicy Schematics - ischematics.com shared a link.
January 29
The concept behind Spicy SWAN is that the user can choose
between two fully COMPLEMENTARY sim engines (Spice,DWS),
like it happens for HYBRID ENGINE cars.
SWAN/DWS maps the circuit under analysis on an equivalent
DIGITAL WAVE NETWORK so th...See More
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Liked Electrical & Electronics Engineering
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http://www.ischematics.com/images/2013_D
WS_TIMELINE_270113.jpg
www.ischematics.com
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Piero Belforte https://docs.google.com/file/d/0Bx-
ZqV10CSiNMk1SNC1zSDNlVkk/edit
2013_PB_Spicy_SWAN_CONCEPTS.pdf - Google Drive
docs.google.com
January 30 at 12:31am · Like · Remove Preview
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January 28
SWAN/DWS: a 4-decade long high tech project.
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Piero Belforte
http://www.ischematics.com/SWAN_DWS_STORY_270113_PB.pdf
January 29 at 5:12pm · Like
Piero Belforte
http://www.ischematics.com/DWS_8.4_manual_27012013.pdf
January 29 at 5:13pm · Like
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January 28
SWAN/DWS story.
https://docs.google.com/file/d/0Bx-
ZqV10CSiNaG5yaW1JWi1EWjQ/edit
2013_SWAN_DWS_STORY_270113_PB.pdf - Google Drive
docs.google.com
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Piero Belforte Behind SWAN/DWS technology and related
applications there is an effort of about HALF MILLENNIUM MAN-
YEARS!
January 28 at 6:28pm · Like
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Spicy Schematics - ischematics.com
January 25
Leonardo da Vinci's version of Spicy SWAN (1510).
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Lucky Pataky HA HA! This is the coolest ever! Leonardo even
knew how to get the male dominated engineering world to notice
the SWAN there. What a genius marketing Ad idea of the Spicy Swan!
January 25 at 8:32pm · Like · 1
Piero Belforte
http://www.ischematics.com/SWAN_DWS_STORY_270113_PB.pdf
January 29 at 5:12pm · Like
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Spicy Schematics - ischematics.com
January 25
EFFECTS of TDR PULSE RISE TIME on RESPONSE.
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Piero Belforte With the shortest rise time (10ps 20%-90%,
equivalent bandwith 35 Ghz)) we get the maximum resolution. The
negative peaks due to lumped capacitances are clearly visible and
reach a minimum on impedance levels.
January 25 at 12:19pm · Like
Piero Belforte Slowing down the TDR pulse, the peaks due to
lumped loads decrease and disapppear with a 500ps rise time
(700Mhz analog bandwith). In this last situation the uniformelyy cap-
loaded segment behaves like a uniform TL of about 41ohm impedance
and a total 2.46 ns delay. The extra 460ps round-trip delay is the
effect of lumped caps on the pure 2ns delay of the unloaded line.
January 25 at 8:26pm · Edited · Like
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January 24
Detailed view of TDR reflected wave related to ckt
TDR_LINE_CAP_DISTR.
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January 24
Here the results of previous circuit TDR_LINE_CAP_DISTR
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Piero Belforte Here the related report
https://www.ischematics.com/webspicy/report.py?
RCODE=80242701301768821164a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
January 24 at 10:10pm · Like · 1 · Remove Preview
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January 24
Yet another example on how Spicy SWAN can be applied to the
simulation of TDR measures : a uniformely C loaded segment of
Transmission Line.
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Robert Allen likes this.
Piero Belforte The line of previous examples here is connected in
the middle to a 1ns (20cm approx) segment loaded by 10 1pF caps
every 100ps (2cm).
January 25 at 7:29am · Edited · Like
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Spicy Schematics - ischematics.com
January 24
INDUCTIVE discontinuity: TDR response.
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Piero Belforte In this case the sign of the reflection is positive
due to series inductive reactance. Even in this case the value 1 of
the the rflected wave is not reached because of the 30ps rise time of
the TDR generator step.
January 24 at 10:05am · Like
Spicy Schematics - ischematics.com
January 23
SWAN sim of a TDR measure on a cable with capacitive
discontinuity: results.
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Piero Belforte Here the report:
https://www.ischematics.com/webspicy/report.py?
RCODE=45580045037631818655a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
January 24 at 10:08am · Like · Remove Preview
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Piero Belforte here the report:
https://www.ischematics.com/webspicy/report.py?
RCODE=76082627440683357884a#newwin
Spicy Schematics Homepage
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic
Capture for Tablet and Web - works with iPad,
Web - Homepage
January 23 at 10:32am · Like · Remove Preview
Piero Belforte Due to finite 30ps (20%-80%) risetime of TDR
pulse compared to 100ps RC time constant of the cap, the -1
reflction (short circuit) is not reached.
January 23 at 10:37am · Like
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Spicy Schematics - ischematics.com
January 23
SWAN sim of a TDR measure on a cable with capacitive
discontinuity.
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Piero Belforte The lossless 50-ohm cable under TDR test is 1m
long. The 2pF lumped discontibuty is placed after 40cm from the
TDR generator end.
January 23 at 10:16am · Like
Piero Belforte A SWAN/DWS MULTIFUNCTION PROBE is placed
at the pulse generator port (node TDR1) of TDR launch line T_TDR
to monitor both the voltage (V) and the wave (B) reflected back by
the DUT.
January 23 at 10:20am · Like
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Spicy Schematics - ischematics.com
January 22
TDR (Time Domain Refectometer) basics: measure on a 75 ohm
ideal cable (length=1m), simulated results (SWAN mode).
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Piero Belforte In Blue the TDR reponse in Reflection coefficient
units (rho): 1.2 is the reflection coefficient of 75 ohm vs 50 ohm
reference. In light green the TDT reponse that is equal to S21 (step
reponse) in red. In green the S11 of the cable (reflected wave) as
step reponse in time domain.
January 22 at 11:03pm · Like
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Spicy Schematics - ischematics.com
January 22
TDR (Time Domain Refectometer) basics: measure on a 75 ohm
ideal cable (length=1m).
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Jairuz Orejudos Agang-ang likes this.
Piero Belforte SWAN mode circuit, SWAN/DWS probes are placed
to get TDR (Reflection) and TDT (Transmission) volatge waveforms
and related waves (Scattering parameters S11 and S21 of the cable
as step responses in time domain).
January 22 at 10:49pm · LikeSpicy Schematics - ischematics.com
January 20
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Using DWS probes in SWAN mode: results.
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January 20
Using DWS probes in SWAN mode.
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January 19
Spicy SWANs take off.
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January 19
Website re-do! Check out our new homepage look! This comes as
Spicy version 2.4.2 is coming out soon, and Spicy SWAN on the
way! Also note that our Spicy Circuit Simulator iPhone utility has a
whole new look ... Look out for the coming updates with many
new features!
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Spicy Schematics - ischematics.com
January 17
Example of SWAN mode instantaneous power monitoring.
Spicy Schematics - ischematics.com
January 17
The schematic related to previous short circuits trials(SWAN).
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Spicy Schematics - ischematics.com shared a link.
January 17
SWAN mode simulated remake of short circuits trials carried out
by Piero (CSELT, 1974) on logic drawers of the first Italian fully
digital Telephone Exchange (Gruppi Speciali) to increase their
reliabilty : https://www.ischematics.com/webspicy/report.py?
RCODE=64126237163188587058a#newwin
Spicy Circuit Schematics & Simulation Capture -
Design Report © 2011,2012 iSchematics.com
www.ischematics.com
Spicy Schematics - Electronic Circuit Schematic Capture for
Tablet and Web - works with iPad, Web - Design Report
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Spicy Schematics - ischematics.com
January 11
SIMPLE FULL WAVE RECTIFIER WITH LC RIPPLE FILTER.
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Spicy Schematics - ischematics.com
January 10
New feature on Spicy Web (coming soon to ipad) .. there are now
two methods for drawing wires .. if you have snap to pin ON
(default) when you draw wires it will try to snap to the nearest
part pin if there is one nearby .. this is particul...See More
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Spicy Schematics - ischematics.com
January 9
Spicy is looking good! We are enhancing the GUI, making wiring
operation better once again, and adding new features! .. live on
Spicy Web soon, and out on ipad in the next update
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About Create an Ad Create a Page Developers Careers Privacy Cookies Terms Help
Facebook © 2013 · English (US)
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Spicy Schematics - ischematics.com
January 4
Spicy has updated our web version (ipad will follow soon) to have
a new simple method for making wires .. just click the wire
button, then click and drag your wire .. when you lift up its done
... it also will start at the nearest part pin automatically to help
you out! ... this is as it should have been done, and we know a
few users have asked for this, so try it out on the web today, and
we will roll it out on ipad soon!
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Spicy Schematics - ischematics.com
January 4
FYI, the next version of Spicy is packed with enhacements,
including new SIMPLE wiring procedure, and other enhancements!
look for it soon on the app store and on the web!
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Spicy Schematics - ischematics.com
January 1
Happy New Year from Spicy! Here is a good laugh to start out the
new year!
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January 5
Jan 5, 2013 5:00amnew video on how to make wires using the new simpler method ... captions available on youtube version
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