Spicy schematics facebook post collection 2012 13 (SWAN applications)

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Spicy Schematics Facebook POST COLLECTION 2012-2013

SWAN applications by Piero Belforte

Spicy Schematics - ischematics.com shared a link.

February 7

http://www.youtube.com/watch?v=btmrIN62iDc

TDR PERFORMANCE EVALUATION USING WORST CASE EYE DIAGRAMS (WCEDs): 7S12

www.youtube.com

True performance of a TDR (Time Domain Reflectometer) in terms of digital bandwith is evaluated using intrinsic worst case

eye diagrams related to incident a...

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February 7

http://www.slideshare.net/PieroBelforte1/rg58-s-par-theory-cstspicedwsfinal-30898006

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Rg58 s par theory cst_spice_dws_final

www.slideshare.net

Comparison of time-domain Sparameters of RG58 cable computed by: Theory, CST, SPICE, DWS S. Caniggia, P. Belforte

February 04, 2014 1

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Spicy Schematics - ischematics.com A comparison of time-domain S-parameters of a RG58 cable computed by different

methods including Theory, CST simulator , SPICE (MC10) and DWS simulators. The good agreement among methods is shown

as well as DWS advantages for fast modeling and simulations of lossy lines using both circuital, BTM and hybrid methods.

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Spicy Schematics - ischematics.com

December 28, 2013 · Edited

SWAN EGG

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December 28, 2013

Happy New Year with the GOLDEN EGG!
















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December 28, 2013

http://www.slideshare.net/PieroBelforte1/2013-pb-rg58-coax-cable-models-and-measurements




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2013 pb rg58 coax cable models and measurements

www.slideshare.net

Copyright Piero Belforte Dec 24th 2013 RG58 coaxial cable: A comparison among Analytical models, DWS BTM models, TDR

measures and CST 2013 Cable Studio simulati

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December 28, 2013

http://www.slideshare.net/PieroBelforte1/1993-new-modellingsimulationenvironmentpbgen1993fullslidecollection Like · · Share

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December 12, 2013

Very intersing discussion on fast 2D PI (Power Integrity) simulation of pcbs and Integrated Circuits.

http://www.linkedin.com/groups/Can-ROGUE-Waves-reality-in-4640686.S.188364499











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Can ROGUE Waves, a reality in oceans and optics, exist in power delivery networks?

www.linkedin.com

"In 2010, more than 25 years after the initial work of Peregrine, researchers took advantage of the analogy that can be drawn

between hydrodynamics and optics...

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November 28, 2013

VI trajectories of a Colpitts oscillator including p.c.b. traces by SWAN/DWS.

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November 28, 2013

Happy Thanksgiving! 2Like · · Share

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November 9, 2013

Here the output spectra at 1Khz for 10mV and 100mV inputs.

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November 9, 2013

Harmonics content of the output signal of the TUBE SCREAMER with a 20mVpp 1Khz input. (SWAN mode).

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November 9, 2013

TUBE SCREAMER: 10mv & 100mv inputs frequency sweeps (1Hz-20Khz/200ms) 500KSamples , 10 & 5 ns

tsteps (SWAN mode).





















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November 9, 2013

TUBE SCREAMER: SWAN vs Spice modes.














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November 9, 2013

Here the SWAN mode result for a 20mVpp 1Khz input.














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November 9, 2013

Another vintage audio circuit: the TUBE SCREAMER for electric guitars.















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November 8, 2013

SWAN/DWS modeling of the 12AX7 Triode from data sheets.
















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November 6, 2013

Despite the very low oscillation frequency (about 200Hz) and slow edges 20-30us, the functioning is affected

by wiring, especially by power & ground connections (PI: Power Integrity) .
















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November 6, 2013

Model of spaghetti wiring of the triode multivibrator.















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2013

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Spicy Schematics - ischematics.com shared Spicy Schematics - ischematics.com's photo.

November 6, 2013

Simple triode (12AX7) multivibrator. (SWAN MODE).















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November 6, 2013

12AX7 Multivibrator results.
















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November 6, 2013

Intermodulation products (distortion) at 1KHz multiples are clearly visible in this spectrum. Two generators

(2Khz and 3Khz, 1Vpp each) in series, are connected to amplifier input.

















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November 6, 2013 · Edited

Simple triode (12AX7) multivibrator. (SWAN MODE).
















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November 6, 2013

Output spectrum of the 12AX7 audio amplifier: 2Vpp , 5Khz input signal.




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November 5, 2013

Frequency sweep test of a TRIODE audio amplifier (SWAN MODE): result (100Hz-20KHz).
















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November 5, 2013

Frequency sweep test of a TRIODE audio amplifier (SWAN MODE).
















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November 2, 2013

Detail of the last millisecond (10Khz).















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November 2, 2013

Startup transient of previous 12AX7 triode amplifier (10Khz).
















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November 2, 2013 · Edited

Back to the future: a simple VACUUM TUBE audio amplifier (SWAN mode).
















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October 18, 2013

OpAMP Phase Shift oscillator using Spicy 3.0

See the ful design report here:

https://www.ischematics.com/webspicy/report.py?RCODE=23632330155013378176a















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October 15, 2013

Giving up pcb trace and gnd/supply wire bonds, after startup the oscillator out behaves like a sinusoid (no

more chaotic effects). Here the spectrum of output voltage after startup (SWAN mode).
















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October 15, 2013

Here the spectrum (DWV) of the oscillator's output (Emitter).
















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October 15, 2013

Here the schematic of previous circuit.















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October 15, 2013

Here the complete picture, trajectories of SMD transistor pins (C,B,E, outside the package) versus the

collector current.
















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October 15, 2013

Adding VCC wire bond (9cm AWG18, BTM model) to previous COLPITTS oscillator: collector voltage vs

collector current trajectory after startup (5us to 10us).
















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October 15, 2013

Colpitts oscillator: chaotic startup discovered using SWAN mode in Spicy SWAN 3.0.















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October 4, 2013

DWV multiplot of sim results related to previous circuit
















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October 4, 2013

Here a relay control application (Spicy SWAN 3.0) using self supply contact for latching operation. 2s delayed

relay contacts (NO and NC) connected to resistive load.
















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October 3, 2013

Using the CONVERT feature of Spicy SWAN 3.0 it is very easy to get a new part implementing the previous

relay. This new part can be tested in this simple circuit.
















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Likes

2013

Liked Electrical & Electronics Engineering

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October 3, 2013

Here the SWAN model of an industrial relay (contactor).








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October 2, 2013

Spicy SWAN 3.0 simulated waveforms after startup time (about 100us in this case)
















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October 2, 2013

Adding printed circuit board layout effects. The average trace length is supposed 2cm (TD=100ps) with 100

ohm impedance.














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October 2, 2013

DWV spectrum of V(IN_P) waveform at 100114 input over the time window 4us-5us.
















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October 2, 2013

Zoomed view of previous plot.

















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October 1, 2013

Overtone (third harmonic) quartz oscillator using an ECL differential line receiver.
















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October 1, 2013

Good example by user request of Spicy 3.0 capabilities .. The user wanted a schmitt trigger ... i found a pdf

online with a simple CMOS implementation .. here is that

paper: http://web.mit.edu/Magic/Public/papers/00260219.pdf

now i made the circuit in Spicy:

http://www.ischematics.com/webspicy/share/img27543021772480038737b.png

Then created a subcircuit with one click using Spicy 3.0's new Convert feature, then simulated a test circuit

via transient sim to verify:

https://www.ischematics.com/webspicy/report.py?RCODE=40010130065250437845a














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September 30, 2013

Previous simulations are an example of outstanding capabilties of Spicy SWAN version 3.0 for modeling and

simulation of digital circuits including logic/timing/signal integrity/power integrity issues.

These capabilties cannot be found in other NA based simulation tools on the market today. 23Like · · Share

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September 30, 2013

DWV multiplot view of metastable outputs observed at 333 Mhz.




























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September 30, 2013

These are the waveforms at 286Mhz clock frequency.

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September 29, 2013

Sim (SWAN mode) results of previous circuit.

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September 29, 2013

%00 Mhz Clock and Data signals at PRBS generator pins (outside) are shown here as eye diagrams.























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September 29, 2013

An improved version of previous circuit including a complete model of the ECL 2047.bit PRBS generator and

p.c.b. interconnections modeled as TLs. The model of the PRBS generator was automatically generated from

previous schematic.

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September 26, 2013

Multiplot dispaly of previous sim results: 50K samples have been calculated for a circuit containg about 500

elements (about half are controlled switches). The SWAN sim requies about 3 sec.

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September 25, 2013

Shown here the plot (Digital mode) of the waveforms related to previous circuit.


















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September 25, 2013

Here an example on how a SR D-type Flip Flop can be easily built up using Spicy SWAN standard logic gates

(SWAN mode).













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August 16, 2013

Simultaneous bidirectional trasmission of asynchronous digital streams (1Gbps and 1.754 Gbps) over an

actual coaxial cable (RG58, 3.66m): actual receivers with X10 gain in the active region (200mV-300mV).
















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August 14, 2013

Simultaneous bidirectional trasmission of 1 and 2 Gbps digital streams over an acual coaxial cable (RG58,

3.66m): results

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August 11, 2013

Spicy 3.0 is coming!

We have been working hard to provide a new interface that is easier to use ... we have added new features

and enhancements, like a combined 2-axis current and voltage plot so you can see all your signals on one

screen, and faster operation with less memory usage ..

Look for this update coming soon!

http://ischematics.com/images/ex_spicy3_3.0.png



ischematics.com

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July 31, 2013



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Chaotic trajectory of the the operating point at the node in the middle of the loop.

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July 26, 2013

100-cell nonlinear trasmission line in an amplified loop configuration: persistent pulse train generation after

startup-

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43.


July 26, 2013

100-cell nonlinear trasmission line in an amplified loop configuration: startup voltage waveforms.

1Like · · Share

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44.


July 25, 2013

Triangular pulse propagation on an elementary non-linear transmission line: voltage waveforms along the

line.






















54

12Like · · Share

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45.


July 25, 2013

Triangular pulse propagation on an elementary non-linear transmission line.

1Like · · Share

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55

46.


July 24, 2013

A balanced current-driven backplane structure was utilized in 1987 to implement a high-speed bus for HDTV

digital signal

distribution:https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxwaWVyb2JlbGZvcnRlfGd4OjI3MDM2MjMyOGJiMTdhNDE

Google Drive Viewer

docs.google.com

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47.


July 24, 2013

Worst Case Eye Diagrams (WCEDs) contours at Receiver #1 for current-driven backplane bus. Total current

edge risetime (erfc) = 6ns.



https://www.facebook.com/l.php?u=https%3A%2F%2Fdocs.google.com%2Fviewer%3Fa%3Dv%26pid%3Dsites%26srcid%3DZGVmYXVsdGRvbWFpbnxwaWVyb2JlbGZvcnRlfGd4OjI3MDM2MjMyOGJiMTdhNDE&h=YAQH38WzYAQHhve1T5JtroHVDo5BPfVVu9aoOrYVGvtJaUA&enc=AZMwqhF_ZOTIZUtwVoV2LhE0zPXPbhuKSYFNmoAMLBJxzn2S_YIkWKZYnJ1Vqd-Fwj1wgStuTpRcq4ZASK2h0ZDi&s=1


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56

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48.


July 23, 2013

Current-driven backplane bus: voltage waveforms (200 Mbps)

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49.


July 19, 2013

Here the

report:https://www.ischematics.com/webspicy/report.py?RCODE=67062680206141057803a#newwin
























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57

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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50.


July 19, 2013

ECL Backplane bus eye diagrams at 250 Mbit/sec: detail.

21Like · · Share

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58

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51.


July 18, 2013

Power distribution net current waveforms.

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52.


July 18, 2013

Power Integrity (PI) simulation on the previous bus operating at 250 Mbit/sec: sim results (voltages).
























59

1Like · · Share

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53.


July 18, 2013

ECL backplane bus (SWAN mode): 250 Mbit/sec operation (15-bit PRBS )

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60

54.


July 11, 2013

Comparison between SWAN models of RG58 coaxial cable (1.83m, TDR setup): results.

1Like · · Share

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61

55.


June 20, 2013

New Spicy SWAN GUI on a netbook.

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56.


June 9, 2013

Historical brochure of SPRINT & SIGHTS (predecessors of SWAN/DWS,DWV) APPLICATIONS

(1989):http://www.slideshare.net/pierobelforte/1989-pb-sprintsightsbrochurefullweb 2Like · · Share

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62


57.


June 6, 2013

http://www.slideshare.net/pierobelforte/2013-06-tdr-measurement-and-simulation-of-rg58-coaxial-cable-sparametersfinal

2013 06 tdr measurement and simulation of rg58 coaxial cable s-par...

www.slideshare.net

Piero BelforteSpartaco CaniggiaJune 04, 20131TDR measurements andsimulations of RGU 58 coaxialcable S-parameters

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58.


May 13, 2013






http://www.facebook.com/l.php?u=http%3A%2F%2Fwww.slideshare.net%2Fpierobelforte%2F2013-06-tdr-measurement-and-simulation-of-rg58-coaxial-cable-sparametersfinal&h=HAQEwPeFFAQF4-wRW1bgE0lWUWuzI3QpNpsMuluaODSBCGg&enc=AZPhYl0BQItxaYu2mKls9BYWogA4SufGzvV1AW4tfIfQF_KNDgQWGqFbr-QZCVqkF4cUqwO6zYIHPt3efv32KukU&s=1


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63

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59.


May 9, 2013

RLTL benchmark circuit: spice mode vs SWAN mode.

















64

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60.


May 5, 2013

Just published on the WEB!http://www.slideshare.net/PieroBelforte1/2013-pb-dws-vs-microcap-10-rl












http://www.facebook.com/l.php?u=http%3A%2F%2Fwww.slideshare.net%2FPieroBelforte1%2F2013-pb-dws-vs-microcap-10-rl&h=MAQH56leQAQFFCZ_VaOSR065uTDAuw05MIwaWGUPZDRksxg&enc=AZM7Q6yKw4oToI2Fef3Rk9d0_t7IV6mfWDoAFMnTBoPyG-TPZcZsOplewmjnlwA-SZKuWupuH9kyyXK149-9TMq7&s=1


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http://www.facebook.com/l.php?u=http%3A%2F%2Fwww.slideshare.net%2FPieroBelforte1%2F2013-pb-dws-vs-microcap-10-rl&h=oAQEjFPZ9&s=1

65

2013 pb dws vs microcap 10 rl

www.slideshare.net

A simple 10-cell RL-TL test circuit has been simulated using two completely different simulators: Microcap10 (MC10, evaluation

version) and DWS. The first one

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61.


May 2, 2013

10%-90% rise time at the output of 1000 cells having erfc shaped transfer function.

http://www.facebook.com/l.php?u=http%3A%2F%2Fwww.slideshare.net%2FPieroBelforte1%2F2013-pb-dws-vs-microcap-10-rl&h=lAQGSBcM0AQG1p5iMANqBSOOJDKE5poV2hi2ZaJcNXp4Dgw&enc=AZOrfe9_jgsHzJ9kjj2hy1yD1dM0HSS5kEoILkPRknJ4iKCuEL-ZbvynpbgIHGyfVJoLz7sJluPVrWu8ghUhfZNL&s=1




















66

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62.


May 2, 2013

Here you can see the results coming from previous

circuits:http://www.slideshare.net/PieroBelforte1/2013-pb-prediction-of-rise-time-errors-of-a-cascade-of-equal-behavioral-cells

2013 pb prediction of rise time errors of a cascade of equal behav...

www.slideshare.net

May 2nd 2013 Copyright 2013 Piero Belforte1Prediction of rise time errors of a cascade ofequal behavioral cells.IntroductionIn

this paper the effects of finite

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67

63.


May 2, 2013

Circuit to show rise time effects on a chain of 10 2-port S-parameters blocks (SWAN mode).

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64.


April 30, 2013

Transfer function risetime (20ps,ramp) effect on a chain of 10 equal blocks in case of sinusoidal input

(10Ghz)


















68

22Like · · Share

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65.


April 27, 2013

https://www.ischematics.com/webspicy/report.py?RCODE=44010056334854175174a#newwin 1Like · · Share

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66.














https://www.facebook.com/l.php?u=https%3A%2F%2Fwww.ischematics.com%2Fwebspicy%2Freport.py%3FRCODE%3D44010056334854175174a%23newwin&h=nAQFS3RFk&enc=AZOy6TmYByfCvbEguZCUexasYVoXDmApo15S4Xu6TCBByGO17ArqvcohggjlDH1TakbDCf4RAn16WrfNE-4eRnhlTuXU33g6zqAJAcRomFjtnHlX7b4jPw2Om19BfW-TqAyIL1iZUrKBcr7UjNlslQDW&s=1

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69


April 26, 2013

http://www.slideshare.net/PieroBelforte1/tdr-measurement-of-rg58-coaxial-cable-s-parameters-120413

Tdr measurement of rg58 coaxial cable s parameters 120413

www.slideshare.net

A RG58 CU coaxial cable is characterized and modeled usinf SWAN/DWS techniques.

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67.


April 16, 2013

http://www.youtube.com/watch?v=wuHdcEot5Uk

RG58 coaxial cable behavioral model optmization using DWS


http://www.facebook.com/l.php?u=http%3A%2F%2Fwww.slideshare.net%2FPieroBelforte1%2Ftdr-measurement-of-rg58-coaxial-cable-s-parameters-120413&h=mAQFueYukAQEjlDQxTcjV8Gzx1BkmmbidiTElNM_moj398A&enc=AZMd-A_eC5xDJbKUTihFzXVdyFtUjTe2W3ePbFFu1MBsccDQ0Z09Ujkj16nhYKNUDrv4Xjp6HJrkzi_qQuAyDkRD&s=1


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70

www.youtube.com

The optimization steps of the BTM (Behavioral Time Model) of a popular RG58 coaxial cable are shown. The starting point is a

10-cell BTM model extracted...

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68.


April 5, 2013

Hey Spicy fans! As part of our commitment to continuous improvement, the interface is being redesigned to

be more user friendly and intuitive .. watch for the next update coming soon! 2Like · · Share

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69.


March 27, 2013

Cisco Systems adopts Spicy SWAN for simulation!
























71

21Like · · Share

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70.


March 19, 2013

New video by user request, making wires and simulation with Spicy on ipad

.. http://youtu.be/Ka8qKTFGUb8

Note we have a YouTube channel with many more tutorial videos, linked from our website ... online at:

youtube.com/user/ischematics

Spicy Schematics - Wiring and Simulation on Ipad

www.youtube.com

Spicy Schematics - Wiring and simulation on ipad http://ischematics.com https://www.facebook.com/SpicySchematics...













http://www.facebook.com/l.php?u=http%3A%2F%2Fyoutu.be%2FKa8qKTFGUb8&h=JAQG0Qf-nAQGcc05stfzZC-VfBqwvlPsSbWVp9u2vhs6ycA&enc=AZN_ayrHKgCT-KVq4pSEH4YBGL9lrDCPhkBMDTAkXNRcSsFCm2au5FGOaelR_w9vEnLfumx4E74w7XvWchV2bSpK&s=1


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72

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71.


March 17, 2013

Played with Spicy today on a HUGE mac monitor at best buy ... very cool ... the new all-in-one touchscreen

PCs with large monitor offers new possibilities for Spicy and for circuit design!

21Like · · Share

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72.
























73


March 11, 2013

Interworking of Ipad mini and Mac mini on the previous circuit.

1Like · · Share

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73.


March 10, 2013

SWAN simulation of a Fault Insertion on a 10Gbps CML net using the new differential probes of HiSAFE+ to

be used by Cisco Systems.


















74

211Like · · Share

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74.


March 10, 2013

Spicy Schematics and Spicy SWAN v2.4.6 available now on web and for ipad on the app store. Update today!

Includes minor bug fixes and new features including the ability to now set the .OPTIONS line properties in

spice! Like · · Share

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75


75.


March 8, 2013

https://www.ischematics.com/webspicy/report.py?RCODE=22668456634860647223a#newwin


www.ischematics.com


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76.


March 5, 2013






https://www.facebook.com/l.php?u=https%3A%2F%2Fwww.ischematics.com%2Fwebspicy%2Freport.py%3FRCODE%3D22668456634860647223a%23newwin&h=jAQE5CBK_AQGh3jxQUcVN9myx6dkOx55j7YXE8yfCO74Qyg&enc=AZPsL45Ff0hNybGtu-7IJOskUeIdF9Pjx3DmxnsRmVsazHLK3PEZmXp7PavAhJSQ0m3Sw-uPMTuAgTn9dxIv46Qz&s=1




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76

Removing via holes effect on the previous 10Gbit/sec differential interconnects...

1Like · · Share

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77.


March 5, 2013

....connecting a 10Gbit/sec Binary Pattern generator to the coupled traces including via holes: SWAN sim

results.

2Like · · Share

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77


78.


March 4, 2013

Optimized SWAN micro-behavioral model of coupled microstrips.

3Like · · Share

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79.


March 4, 2013

FYI, on Spicy for Web, you can now set some of the .OPTIONS line parameters for spice simulations. Some

circuits converge better with RSHUNT or GMIN specified differently for example, and you can also choose

the integration method of GEAR or TRAP .. defaults are TRAP, RSHUNT off, and GMIN=1e-12 and you can

select the default as well. This is available now on Spicy for Web, and will be available on ipad for the next

release coming soon. Like · · Share




















78

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80.


February 25, 2013

Results of previous SWAN TDR setup of a coupled pair of pcb traces (microstrips).

1Like · · Share

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81.


February 24, 2013

DIGITAL DIFFERENTIATOR RESPONSE to a SINE INPUT.
























79

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82.


February 23, 2013

New Video on our YouTube Channel, How to Make Wires:http://youtu.be/7P5UMFph8Pk

New Wiring Method and New Probes - Spicy v2.4.5

www.youtube.com

Spicy Schematics - Group Select, Copy/Paste Example (no audio) http://ischematics.com

https://www.facebook.com/SpicySchematics...

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http://www.facebook.com/l.php?u=http%3A%2F%2Fyoutu.be%2F7P5UMFph8Pk&h=jAQE5CBK_&s=1

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80

83.


February 22, 2013

Ok, so with Spicy Schematics you have everything you need for circuit schematic design and simulation with

professional-grade spice, ... but what if you need to do high speed digital simulations, with hundreds of RC

networks? How about tra...See More


ischematics.com


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84.


February 20, 2013

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



http://www.facebook.com/l.php?u=http%3A%2F%2Fischematics.com%2F&h=1AQGoFd7NAQHSQhLbguXrqA42kuJghCy2031-BvpsYkpiPw&enc=AZPnPeD3TvjENCQRP-4GfokHD1oijyi6qj5ejDr2A75rO4eCLzh5ynZI4wfQ9mtcpbUNz2EO4o8nAlCff5hOP_m2&s=1


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81

docs.google.com

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85.


February 20, 2013

VOUT vs VIN CIRCULAR ORBITS of previous Digital Integrators.

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86.


February 19, 2013
























82

SWAN: unit step response of H(s) = 1/s (ideal integrator) transfer function.

1Like · · Share

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87.


February 19, 2013

Here the SWAN sim results of the previous FI setup.

3Like · · Share

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83

88.


February 19, 2013

A practical application of the BTM wire model: brute force fault insertion on a high-speed clock interconnect

(2Ghz).

1Like · · Share

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89.


February 16, 2013

Here you will find the sim report of WIEN

OSCILLATOR:https://www.ischematics.com/webspicy/report.py?RCODE=28008276605001616111a#newwin


















https://www.facebook.com/l.php?u=https%3A%2F%2Fwww.ischematics.com%2Fwebspicy%2Freport.py%3FRCODE%3D28008276605001616111a%23newwin&h=NAQECiEp8AQGNx1hzlRzEnTAVr1zTyfp7w-CLfbMS2L0p-Q&enc=AZO3G_j3Nig60pqNJ-GgxpCdxPb3AYPWwt1aHQZ0p5rlVShib5JgH3JNO73LSm1AdOhk6KbgSgANdjrggypV8Hns&s=1


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84

www.ischematics.com


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90.


February 16, 2013

Here a collage of SWAN sim results of the WIEN OSCILLATOR.

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85

91.


February 16, 2013

A WIEN oscillator in SWAN mode.

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92.


February 14, 2013

Voltage waveform spectrum of the nonlinear LC oscillator.



















86

211Like · · Share

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93.


February 14, 2013

V-I orbits related to previous nonlinear LC free-running oscillator.

11Like · · Share

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87

94.


February 14, 2013

SWAN mode simulated voltage waveform related to nonlinear LC oscillator.

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95.


February 13, 2013

Another example of how SWAN can be used to solve a higher order system of nonlinear differential

equations.




















88

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96.


February 6, 2013

A very simple RL DIODE circuit showing a CHAOTIC behavior













89

44Like · · Share

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97.

Spicy Schematics - ischematics.com commented on a link.

February 5, 2013

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=2644100477172352

0648a#newwin.













https://www.facebook.com/l.php?u=https%3A%2F%2Fwww.ischematics.com%2Fmboard.html&h=8AQHQ-Cq7&enc=AZPKpzqmsCV0JXxYAnfphHk-cCltRq7j26eIk185gBbjVuyIwnPFJvNoP8iRYA11b_q5VSFGz62BuvZvsc_MxQjDdiLv_0NW3ezkcrKzzaU-eQ&s=1


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90

Spicy Schematics

www.ischematics.com

Spicy Schematics - Electronic Circuit Schematic Capture for Tablet and Web - works with iPad, Web - Chat!

Like ·

98.


February 4, 2013

Here the SWAN mode report of he simplest LC 50Mhz free oscillator.

https://www.ischematics.com/webspicy/report.py?RCODE=62433800025120153633a#ne

wwin


www.ischematics.com


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91


99.


February 1, 2013

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#ne

wwin


www.ischematics.com


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100.


February 1, 2013



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https://www.facebook.com/l.php?u=https%3A%2F%2Fpicasaweb.google.com%2F118285010585894969594%2FDWSIMAGES%235729896428676687522&h=iAQH5qRunAQF4pJCE9wAj95vyxte1YfpM95VmnG_LMVhxIw&enc=AZMv-L-odzltywNn_E9sEh3FwvOfrimqdEDynBMKWmB_xFYO4bcot_S3rxoIY-2vAiYbSo0pSPljJ6SuYMxfXubn&s=1


92

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/DWSIMAGES#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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101.


February 1, 2013

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) ... 2Like · · Share

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93

102.


January 29, 2013

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

http://www.ischematics.com/images/2013_DWS_TIMELINE_270113.jpg

www.ischematics.com

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103.


January 28, 2013

SWAN/DWS story.

https://docs.google.com/file/d/0Bx-ZqV10CSiNaG5yaW1JWi1EWjQ/edit



http://www.facebook.com/l.php?u=http%3A%2F%2Fwww.ischematics.com%2Fimages%2F2013_DWS_TIMELINE_270113.jpg&h=iAQH5qRunAQHDRDtIoNdeWDAkL22lxlFosWHYyXXM0O31mw&enc=AZMG9Uc5GXLcgxokKydHp2A9c6o4G9q9mBWrmNYkDL19RD6lG9YWBNdhAey6gk-9nktqEq8xpnCFn7n99XjsvRVS&s=1


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94

2013_SWAN_DWS_STORY_270113_PB.pdf - Google Drive

docs.google.com

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104.


January 22, 2013

TDR (Time Domain Refectometer) basics: measure on a 75 ohm ideal cable (length=1m).

11Like · · Share

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105.



























95

January 20, 2013

Using DWS probes in SWAN mode: results.

11Like · · Share

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106.


January 20, 2013

Using DWS probes in SWAN mode.


















96

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107.


January 19, 2013

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!

73Unlike · · Share

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97


108.


January 17, 2013

Example of SWAN mode instantaneous power monitoring.

12Like · · Share

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109.


January 17, 2013


















https://www.facebook.com/l.php?u=https%3A%2F%2Fwww.ischematics.com%2Fwebspicy%2Freport.py%3FRCODE%3D64126237163188587058a%23newwin&h=ZAQGPu8E3AQGwxfAdKRTcRpnvEC3JpJsO0cVrpXTvbxWFoQ&enc=AZPWrI2q-dgqMEsQ-vvFZWLv03MIhRUaCfRZDabICdp6WBb366NOElqwk2wg11C3ztPrCOL4DMyeKtFCXku9oFFU&s=1


98

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

1Like · · Share

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110.


January 11, 2013

SIMPLE FULL WAVE RECTIFIER WITH LC RIPPLE FILTER.



https://www.facebook.com/l.php?u=https%3A%2F%2Fwww.ischematics.com%2Fwebspicy%2Freport.py%3FRCODE%3D64126237163188587058a%23newwin&h=OAQGvlhqkAQFn3wT-qHj087HJZ8zuzS_1Upx8OV78hvza4w&enc=AZOH5_OGqWP4jS2_UFu84f4Iz8FQUAsRmhbQw5XO22U_BWG4Sfs_f1L3zT2-udaHagzeUQqO0VI3A43C-LOAtpBu&s=1


















99

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111.


January 5, 2013

new video on how to make wires using the new simpler method ... captions available on youtube version













https://www.facebook.com/photo.php?v=3613039904112&stream_ref=10

100

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112.


January 4, 2013

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! 3Like · · Share

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113.





https://www.facebook.com/ajax/sharer/?s=11&appid=2392950137&p%5B0%5D=3613039904112&profile_id=185523688163451&share_source_type=unknown



















101

January 4, 2013

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! 1Like · · Share

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2012

1.


December 5, 2012

Spicy Tutorial Video #3

Spicy Tutorial Video #3

2Like · · Share

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https://www.facebook.com/photo.php?v=3489614258548









102

2.

Likes

2012

EEWeb

Electrical Engineering Portal

Oscium

ENGINEERING.com

https://www.facebook.com/SpicySchematics/info?ref=stream




https://www.facebook.com/pages/EEWeb/148705648546914





https://www.facebook.com/eeportal

https://www.facebook.com/Oscium





https://www.facebook.com/engineeringcom

103

3.


December 5, 2012

Spicy Tutorial Part 2


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4.


December 5, 2012



















104

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5.


December 5, 2012

How to make wires video tutorial

How to make wires video tutorial













105

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6.


December 5, 2012

NEw Copy Paste Feature Video!

NEw Copy Paste Feature Video!













106

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7.


December 4, 2012

Another time trial of SpicySWAN vs MC10 for circuit 10_LC_CELL_TL in the window 0 - 5 microseconds with

timestep of 1 picosecond (5 MILLION output samples)












107

2Like · · Share

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8.


December 2, 2012

This video shows an actual comparison between a commercial simulator (MC10) and SpicySWAN during the

simultaneous simulation of the same circuit 10_LC_TL. To get similar accuracy levels, both sims are carried

out the same time step of 10 femtoseconds on a time window of 0-50ns.

MC10 runs locally on a quad core I7 PC. SpicySWAN sim is carried out by SWAN/DWS engine running on a

SpicySWAN server in the Web.












108

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9.


November 18, 2012

New Feature: Copy/Paste/Move, Group Select

http://www.youtube.com/watch?v=9Ih2euzv4As

Available on Spicy Web, will rollout on iPad in next update!

Spicy Schematics - Group Select, Copy/Paste Example (no audio)

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Spicy Schematics - Group Select, Copy/Paste Example (no audio) http://ischematics.com

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November 10, 2012

In this collage the differences are clearly visible.

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November 9, 2012

This is not an ECG.
























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12.


November 9, 2012

A new very simple circuit: Two LC oscillators fed by negative resistances tu sustain the oscillations are

coupled together by a non linear resistance.

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13.


November 8, 2012

XY PLOTS OF CHUA7

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November 8, 2012

And this one is an artistic view of Piero related to circuit CHUA7.



















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November 8, 2012

And this is the time-domain multiplot related to circuit CHUA7.

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November 8, 2012

Another little variation on CHUA's theme.






















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November 8, 2012

This is what happens with a small change of capacitor C0 params (value,IC). Ref. Spicy SWAN circuit

CHUA5. Report just posted.

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November 7, 2012

























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CHUA VI trajectories.

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November 7, 2012

Using Spicy SWAN on Ipad2.

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November 6, 2012

ROLLER COASTER from the Swan mode ckt just uploaded.

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21.


October 31, 2012

The first Spicy newsletter!

http://www.ischematics.com/newsWeb.py














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Spicy schematics facebook post collection 2012 13 (SWAN applications)

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Transcript of Spicy schematics facebook post collection 2012 13 (SWAN applications)