"switchercad" profitez-en!!

[invitea6f89a0c]

Salut, sur linear technologie.com j'ai trouvé un logiciel electronique, electrotechnique si vous voulez aussi, tres important et simple à utiliser "switchercad" telechargeable et gratuit...je vous le conseille ..et on pourra discuter .
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[invitea6f89a0c]

50 visites et personne ne donne son avis ni commentaire

[f6bes]

Bjr sahban,
" j'ai trouvé un logiciel électronique"... OK , mais il FAIT quoi ???
"Switchercad" : tout le monde ne connais pas l'anglais et bof aller télécharger un truc inconnu dont on ne sait a quoi il sert, cela n'affole pas les foules, c'est sur !! Donc on continue son chemin !!!
Bonne journée

[Tropique]

Switcher CAD est effectivement un excellent logiciel, mais il y a longtemps que je (et je ne suis pas le seul sur ce forum) l'utilise:
http://forums.futura-sciences.com/se...archid=2120419
http://forums.futura-sciences.com/sh...ear+technology

[A voir en vidéo sur Futura]

[invite03481543]

Oui comme dit Tropique rien de bien nouveau, switchercad existe depuis longtemps, c'est pour ça que personne n'a réagit je pense.
A la base il servait à simuler les circuits de chez Linear, et en fait il permet de simuler beaucoup d'autres circuits analogiques avec affichage des graphes de tension, courant et ce avec une belle précision.
Pour ma part je m'en sers de plus en plus avant d'attaquer une maquette, pour vérifier si les calculs de composants sont pas aux choux.
@+

[f6bes]

Bst à tous,
Voilà des propos qui vont m'inciter à aller voir cela de plus prét.
Au moins c'est de l'info (meme si elles est de "base") !
Pourvu que ce soit pas IN gliche !!
Bonne soirée

[Jack]

50 visites et personne ne donne son avis ni commentaire

Bein oui, on en a déjà parlé.

On le trouve aussi sous le nom LTspice.

A+

[invite9346f806]

Bonjour!
Je cherche à simuler à l'aide de swichtercad un montage électronique en vue de fabriquer une pédale de distortion pour guitare. Le montage est le suivant:http://www.generalguitargadgets.com/...st_plus_sc.gif . Seulement, étant débutante en la matière, je ne parviens pas à lancer la simulation, un message d'erreur annoncant que le sous circuit relatif à l'ampliop est inconnu. Sauriez-vous à quoi celà est dû, et comment régler ce problème? merci d'avance!

[curieuxdenature]

Bonjour

Il est necessaire de poser sur le schéma une instruction à l'aide de "op"
C'est un menu qui se trouve à l'extreme droite en haut du logiciem.

ça doit donner quelque chose de ce genre:

.include opamp.sub

[invite9346f806]

j'ai justement déjà essayé cette instruction mais ca ne fonctionne pas, le logiciel répond qu'il ne peut pas l'inclure...

[curieuxdenature]

Bonjour parisbrest

vérifie que tu as bien ce fichier (opamp.sub) dans ce répertoire
C:\Program Files\LTC\SwCADIII\lib\sub

il fait partie du programme de base et il est associé au composant choisi dans le répertire ..\sym, avec les composants LT1001 à LTC7652.

Si ça ne marche pas, c'est que tu as fait une erreur quelque part.
Vérifie en particulier que tu as bien coché la case 'SPICE Directive' et non pas 'comment' en inscrivant rigoureusement : .include opamp.sub
ne pas oublier le point '.' avant include.

[invite9346f806]

merci beaucoup, le problème est résolu!

[alainav1]

bonjour,
j'ai regardé ce logiciel mais je n'ai pas vu comment simuler des circuits avec des composant commme 555 ,ampli op (type LM324 ) ai je mal chercher ou alors cela depasse t il les limites du logiciel ?
Cordialement
Alain

[curieuxdenature]

Bonjour alainav1

on arrive à trouver des tas de librairies sur le net, dont le NE555, LM386, TL082, des lampes, des MosFet, j'ai même trouvé ce qu'il faut pour simuler l'unijonction 2N2646, c'est dire...

[alainav1]

bonjour,
merci des info mais connais tu une librairie qui comportes les composants classiques du debutant (je n'ai pas trouver sur google ,jai surement mal charché ?)
ne555,op (lm324, 311 .., transistors classique (bc 517 ..),zener ,regulaeur 7805 ...
le but est de simuler des petits ciruits type nonostable a 555 ,comparateur , petit ampli a transistor afin de mieux comprendre le fonctionnement .
merci
Alain

[Tropique]

Hello

Sur le forum, tu as de nombreuses librairies et composants individuels. Quelques exemples en vrac:

cmp: Component Files
Libs: Freely available libraries from manufacturers: transistors, diodes
sub: Subcircuit Files
sym: Symbol Files
1N4736A: Compare two Z-diode models
2 rail voltage source: lazy mans op amp supply rails
2N2646 : Unijunction Transistor
4-pin MOSFET: Using MOSFET models with 4 pins
4N35: Opto Coupler
6N137: High speed opto coupler
A-model OTA: LTSPICE Operational Transconductance Amplifier
AD22057: Sensor Amplifier
AD534: Analog multiplier/divider from AD
AD587: High Precision 10V Reference
AD588: Complex reference voltage source
AD603: Variable-Gain Amplifier
AD620: Instrumentation Amplifier from AD
AD633: Analog Multiplier
AD734: Analog multiplier
AD797: Lowest distortion amplifier
AD8027: Model "repaired" by Helmut
AD8032: Fast opamp from Analog Devices
AD8065: AD8065 test circuit, see message 13367
AD8099: Low noise amplifier
AD835: Analog multiplier. Improved model and test circuit
AD844: Two examples with specific and universal symbol
AD8592: Opamp, requires modifications in the switch statements used in the model
AD8671: Precision opamp
Beads: Beads, lossy inductive filters
BFR93A: Different Models for BFR93A
BLF245: Philips BLF245
Bridge Rectifiers: Symbol + library
BS170: DC characteristic of the models from Fairchild, Philips and Zetex
BSP135: Infineon Power-NMOS transistor
CD4046: A first experiment with a CD4046 model, V0.8
CD4049UB: Unbuffered Inverter
CD4066: Analog switch
CMOS Timers TLC555, TLC556: Models, symbols and more
Comparator LM339 and LM393: Three models for this comparator
Current Limiting Diodes: Current Limiting Diode Example with symbol and model file
DAC8408: Subckt for the DAC8408 quad 8-bit MDAC
Darlington transistor: Some examples of darlington transistor symbols
Digital 74HC137: Hierarchical model
Digital 74HC154: Hierarchical model
Digital 74HC540: Hierarchical model
Digital 74HCTxxx: 74HCTxxx Devices
Digital 74HCxxx: 74HCxxx Devices
Digital CD4000: CD4000 series devices
Digital SN74xx:
DN2535: Depletion Mode NMOS from Supertex
DRV103: Coil driver from TI
Dual-Gate-Mosfet: Using Dual-Gate-Mosfet models (subcircuits) from vendors
ELECTRET MICROPHONE: realistic electret model
Electrical Lamp: Some Lamp Models
FDV301N: The 4-pin Power-MOSFET model from Fairchild with the junction temperature(Tj)-pin
Fuses: Different kinds of fuse models
HA5104: Opamp from Harris/Intersil
HCNR200: analog optocoupler
HCPL-3140 HCPL-0314: Optocoupled IGBT-Driver
HFA1100: Current feedback opamp from Harris/Intersil
HitFet:
INA103: Low Noise, Low Distortion Instrumentation Amplifier
INA111: High Speed FET-Input Instrumentation Amplifier
INA117: Difference Amplifier
INA118: Instrumentation Amplifier
INA121: High Speed FET-Input Instrumentation Amplifier
INA132: Difference Amplifier, normal and E-model
IR2104: Half Bridge Driver from IRF
IR2108: Half Bridge Driver from IRF
IR2110_IR2010: Half Bridge Driver from IRF
IR2181: Half Bridge Driver from IRF
IR2184: HB driver from IR
IRF6603_to_IRF6609: Picking subcircuit MOSFET models from a list
IRS2011: HB driver from IR
IVC102: Switched Integrator Transimpedance Amplifier
IXDD404: Gate driver from IXYS
IXDD414: Low side gate driver from IXYS
IXFK27N80Q: NMOS from IXYS, example with a library file
JK-Flipflop and T-Flipflop: Subcircuits of JK-Flipflop and T-Flipflop
L6561: PFC controler from ST
Laser Diodes:
LED Models:
LF398 sample & hold:
Light_Dependent_Resistor: LDR Model(s)
Linear Regulators: LM78L05, 08, 12 & 15; 3# LM317
Linear Transformers: Transformers with up to six coils
LM308: An older opamp with external compensation
LM317: Voltage Regulator
LM324: Examples with the universal and a specfic symbol
LM334 Current Source: Model and symbol
LM358: Quiescent current and more
LM359: NORTON amplifier from NS
LM385: Adjustable reference
LM386: Audio Amplifier
LM3900: NORTON amplifier from National Semiconductor
LM709 uA709: A first generation opamp uA(LM)709. It's now obsolete. It was widely used before the xx741 appeared.
LM723: Voltage regulator circuit with LM723 from Damir
LMC6001A: CMOS opamp from National Semiconductor
LMC7111B: CMOS opamp from National Semiconductor
LMH6672: ADSL Line Driver LMH6672a,b
LT1004_1.2_2.5 LM385_1.2_2.5: Selfmade models of these reference diodes
LT1009XY: A self made model of this 2.5V reference
LT1671: Fast comparator, corrected model required if GND-pin is not connected to net 0
LT1711: New LT1711 model, LT1711_
LT1790: 2.5V reference from Linear Technology
LTC1043: Switched Capacitor Block
MAX4167_LTC6101: High side current sense
MAX4714: Mosfet driver from MAXIM
MAXIM-IC: ICs from MAXIM
MC1496: Double Balanced Modulator/Demodulator
MC33021: ONSEMI rail to rail amplifier
MC4558: Opamp from ST(SGS Thompson)
MC74HC4046: A first experiment with a 74HC4046 model, V0.9
MIC44xy: Gate drivers from MICREL
MLT04: Multiplier from Analog Devices
mmsz4690t1: Z-Diode with .SUBCKT
MOC302x OPTO TRIAC: MOC3020, MOC3021, MOC3022, MOC3023
MOV: Varistor model and symbol
MTD3055V: Power MOSFET
NCP2820: Class-D audio amplifier
NDT452AP: The 4-pin Power-MOSFET model from Fairchild with the junction temperature(Tj)-pin
NE34018: MESFET from CEL
NE5534: Low noise audio amplifier
Non-Linear Inductor Model: Behavioral Inductor Model (Hysteretic core model by John Chan)
Non-Linear Transformer Model: Behavioral Transformer Model and Example
NTC Thermistors: NTC thermistor models including dynamic model for self heating
Op Amp Modeling: Op Amp Modeling
OPA1632: Fully differential amplifier
OPA695: Current feedback amplifier with disable
OPA830: Example with OPAx83x
Opamp Load Curr. From Supplies: A subcircuit and a symbol to simulate the current drawn from the power supplies
OTA CA3080 and LM13700: Models and examples with common available OTAs
PC357NT: Optocoupler from Sharp, coupling ratio 200%
PC400 : Opto coupler
PGA206_PGA207: Programmable Gain Instrumentation Amplifier from TI
PIN-Diodes: HF diode switches
Potentiometer: A linear potentiometer. See also Files/Tut/Potentiometer for more complex variants.
PT100 : PT100 platinum resistance sensor
PTC Thermistors: Resistors with positive temperature coefficient
PUJT: Programmable UJT model and asy files
PVcell: Solar panel model
Relays: All these mechanical relays
Reworked symbols: Better looking symbols
S1E2 : DMOS transistor from Polyfet
sch: Schematic files
Schematic Frames And Title Blocks: The basic sheet frames for sheet sizes A3, A4, A5 and the American A, B
SFH2400: Fast PIN-photodiode similar to SFH203
Si2306_Si2307: Using .subckt power MOSFETs from Vishay
Simple Switches: *.sub and *.sym for SPST, SPDT and DPDT switches
Solar Cell Module: Module with 36 cells, hierachical schematic
SPA11N60C3_SPP20N60C3: Infineon Power Mosfet CoolMOS3, VDMOS model
TECCOR SCRs and Triacs: Dropdown-Symbols, Library and Tests
THS3201: Current Feedback Amplifier
TL072: TL072 versus LT1057
TL431 voltage reference: Behavioral and transistor level models of the TL431
TLV2371_TLV2372: Rail to rail opamps
Transient Voltage Suppressor: Examples with TVS diodes (Transzorb)
Transil-Diodes from ST: Test, Library and Dropdown-Symbol
TS46X: Opamp from ST, TS461..4
TSM1051: Battery Voltage And Current Controller
Tubes_Valves: Special symbols for tubes(valves), e.g. diodes
Tunnel Diodes MBD1057: Models and examples
Varistor: Voltage dependent resistor, EPCOS ans LittleFuse
Z-Diodes from DiodesInc: Library, Test and Dropdown-Symbol
Z-Diodes from ONSEMI: .LIB or .SP3 files, that's the question here
Z150UFG: Very high voltage rectifier diode
2N3773_test2.asc: Hfe depends on collector current and collector-emitter voltage
2n7002.asc: Usage of a 2N7002 .SUBCKT model
AD8138_test.zip: Differential Amplifier from AD
AD8310_new.zip: Logarithmic Amplifier from AD
AD8332vga.zip: AD8332 VGA chip in LTspice
BSS129_test.asc: Test circuit using two different models for the BSS129
BSS83.asc: NMOS from Philips with seperate substrate-pin
CA3000_test.zip: CA3046, CA3096, LM741 test circuit
cd4007_spdt.zip: Two versions of CD4007 configured as SPDT bilateral switch with examples.
CSD06060_test.asc: SiC diode, test circuit for recovery time
DN5711_test.asc: Using a .SUBCKT diode model
FDB2532_test.asc: Fairchild MOSFET. Use the Alternate-solver.
FDP2532.zip: Here the model and test circuits and datasheet values for the FDP2532 from Hendrik Zwerver
general VFB and CFB opamps.zip: generic voltage feedback and current feedback opamp models
IRFBG30_test.asc: Mosfet with 4-pin subcircuit definition
IRFPE50.zip: The IRFPE50 VDMOS model in LTspice plus the datasheet and the text file for the mos tool V4.2 . The files are from Hendrik "mazda626gt4ws".
IXFX120N20_test.asc: Third party Mosfet Model from IXYS with .MODEL type of model
LF353_LF412_test.zip: Example with LF353 and LF412 using a specific and an universal symbol
LM741_test.zip: LM741 from NS
LMH6321.zip: Test circuit, symbol and model
LT1633_test.asc: Test circuit with LT1633
LTSpiceOpAmpParameters.doc: Parameter table for universal opamp symbol
MAX492_test.zip: Test circuit using the "opamp2" symbol
MAX9119.zip: Test circuit, symbol and model. Unzip into any folder.
MC33078_test.zip: Test circuit with MC33078, model from Onsemi
MCP6231.zip: Opamp MCP6231
MCR08MT1_test.zip: SCR MCR08MT1 from OnSemi
MV1642_test.asc: Tuning Diode
NE555N_NE555S.zip: NE555N from Mike's schematic and NE555S from ST datasheet
NHcell.asc: rechargeable NiMH cell using LTspice's nonlinear capacitor
NHcell.gif: NiMH AA cell discharge characteristics - model vs. data sheet
NUD4001_lt.zip: NUD4001 LED current source
PA19_test.zip: Apex PA19 video amplifier
SD210_test.asc: MOSFET SD210
Si4884BDY.asc: DC curve tracer sweep Si4884BDY
Speaker.asc: Example speaker model schematic for kelticwizard100
SpeakerLoad.asc: 3-Way Speaker Model
speakers.sub: Models of Eminence and Jensen instrument speakers.
TRANSZORB_1N6264.asc: Transzorb models from Vishay
Vbe_break1.asc: BC856A with Vbe breakdown
zd6v8.asc: Z-diode with subcircuit
Files > Lib > cmp
resorted cmp: cmp file "standard.mos" relisted for easier part parameter selection
standard.bjt: Enlarged Library by PB. Comment from Helmut: Change KF=1e-9 to KF=0 in all models if not you will get totally wrong results in a .NOISE analysis!
standard.dio: Update of Standard Diode File with 1N34A Germanium Diode. CAUTION! This File will Overwrite the Original if Placed in Your LTC cmp Folder!
standard.jft: Enlarged JFET library by P

B

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http://tech.groups.yahoo.com/group/L...of%20Contents/
A+

[ak47only]

bonjour à tous
Ce logiciel de simulation est il meilleur que isis proteus 6 ?

[curieuxdenature]

Pas vraiment, je ne me souviens plus très bien de Protéus mais je suis revenu à SWcad3 pour des raisons de convivialité. Mais c'est assez subjectif, ce qui plait aux uns ne fait pas forcément l'unanimité.

M'enfin, pour des besoins éducatifs le gratuit SWCad3 est pas mal.