MultiMedia Logic Digital Circuit Design simulator Download

This multimedia logic simulator software is simplest, most powerful, most universal languages known (Digital Logic).  Most digital logic drawing systems are just that, drawing systems.  Recently, some logic drawing systems allow circuits to be activated as they are drawn for testing purposes.  But the input and output to these systems are typically files of numbers.  The MultiMedia Logic Simulator has taken this one step further and introduced devices that connect directly to your computers’ real devices (e.g. Keyboard, Screen, Serial Ports) including MultiMedia ones (PC speaker, Wave, Bitmaps).

The intent of this system is not to necessarily build the logic circuit you design.  The intent is to use what you build, to allow experimentation, to learn and to have fun.

This Complete installation kit for all 32-Bit Windows. (NT/2K/Xp/95/98/ME, VISTA, Windows 7)

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TransistorAmp BJT Transistor Amplifier Circuits Designer Software

For the design of transistor amplifiers there is a new software available: TransistorAmp. With TransistorAmp you are able to create your individual transistor amplifier with a few mouse clicks. TransistorAmp is freeware.

The tool TransistorAmp has a very easy to use user interface. You start every design with the menu item “New Amplifier”. In the pull-down-menu you choose your desired circuit. You can choose between,

• common-base-circuit
• common-emitter-circuit
• common-collector-circuit

After that you get a dialog, where you have to put in all parameters of your amplifier.

For the selection of the transistor type you can click on the button “Select transistor type from list”, and you will see a list of all supported transistor types. TransistorAmp supports some thousand transistor types. Select your desired transistor type there and click on OK. The selected transistor type will then be displayed in the dialog.

When you have completed your input in the dialog, you click on OK and see the result. You see a window with your input data, the circuit, the component values and the most important parameters of the operation point. If you want to change your design, you only need to click again on “New Amplifier” and the circuit in the pull-down-menu. The input data, which have given will be restored to the input dialog, and you can change one or more parameters.

When you are satisfied with the result, you can click on “Result – Save”. TransistorAmp saves all data which is displayed in the result window to a HTML-file. You can open this file with a browser (e.g. Firefox or Internet Explorer), inspect it and print it.

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LTspice IV free analog, mixed signal circuit simulation, schematic capture tool

LTspice IV is a powerful free analog and mixed signal circuit simulation and schematic capture tool offering unmatched performance, speed and ease of use.

LTspice IV has two basic modes of driving the simulator:

1. Use the program as a general-purpose schematic capture program with an integrated simulator. Menu commands File=>New, and File=>Open(file type .asc)

2. Feed the simulator with a handcrafted netlist or a foreign netlist generated with a different schematic capture tool. Menu command File=>Open(file type .cir)

LTspice IV is intended to be used as a general purpose schematic capture program with an integrated SPICE simulator. The idea is you draw a circuit(or start with an example circuit that’s already drafted) and observe its operation in the simulator. The design process involves iterating the circuit until the desired circuit behavior is achieved in simulation. Earlier versions of LTspice included a synthesizer that would attempt to divine a SMPS design from a user-supplied specification, but that mode of operation has been obsoleted.

The schematic is ultimately converted to a textual SPICE netlist that is passed to the simulator. While the netlist is usually extracted from a graphical schematic drafted in LTspice, an imported netlist can be run directly without having a schematic. This has several uses: (i) Linear Technology’s filter synthesis program, FilterCAD, can synthesize a netlist for LTspice to simulate the time domain or frequency response of a filter. (ii) it simplifies benchmarking LTspice against other SPICE programs (iii) professionals historically experienced with SPICE circuit simulators are familiar with working directly with the textual netlists because schematic capture was not integrated with SPICE simulators in older systems.

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TinyCAD Electronic Circuit Drawing Software With Libraries

TinyCAD is a program to help you draw circuit diagrams. It comes complete with symbol libraries to get you started straight away. As well as being able to simply print your designs, you can use TinyCAD to publish your drawings by copying and pasting into a Word document or saving as a PNG bitmap for the web.

You can use TinyCAD as a front end to a number of PCB layout program, by getting TinyCAD to create a netlist of your circuit.

TinyCAD is fully open-source so you can use it for free and you can download the source code for use in your own projects.

The features of TinyCAD:
* Drawing Overview
* Web & Word
* Create PCBs
* Simulate with Spice

Web & Word
Creating Circuit Diagrams for display on the Web and in Word

TinyCAD has some features to make it easier for you to put your circuit diagrams on your own web-site or adding them to your Word or other documents.

Turn your circuit diagrams in to PNG images

Although you might want to put the original drawing on your web-site, with a link to TinyCAD for download, this isn’t normally what people want to do.

A better solution is to convert your circuit digrams in to bitmap. TinyCAD supports outputing ciruits diagrams as PNG files. If you are not familar with PNG files, they are the open-source equivilent of GIFs. All modern web browsers and operating systems support PNG files.

You can create PNG files directly from the file menu in TinyCAD, these files can be exported in colour or black and white.
Copy & Paste your circuit diagrams in to Word or Powerpoint

You can clearly paste the PNG file in to Word too. However, TinyCAD also supports normal Windows’ Copy & Paste.

Any part of the circuit diagram that is selected and then Copy’ed can then be pasted in to any of the Office applications. Instead of being pasted as a bitmap, the image is pasted as a vector graphic, making it higher quality for use in printed material.

Convert your drawings in to Acrobat (pdf) files

If you want your circuit diagrams as PDF files, then you need an extra program that converts the print output from TinyCAD.

There is an open source PDF creator that you can get by following the links in the “Link” section above. This program produces excellent PDF files from not only TinyCAD but most Windows programs.

Using TinyCAD to create PCBs in an EDA system

There’s no point in drawing a circuit diagram unless you can actually build it!

TinyCAD can be used to make circuit diagrams that can be fed in to a PCB layout program. After the you have created your drawing, you can use TinyCAD’s design rules checker to see if there are any problem which will prevent it from being used by a PCB layout program.

TinyCAD supports several different PCB net-list formats. Simply export the net-list from TinyCAD and import it into another PCB layout program. If you are looking for a free PCB layout program then try FreePCB. It is linked to in the links page.

You can export from TinyCAD in Protel, PADS, Eagle SCR format.

Simulating circuits with TinyCAD and Spice

You may use TinyCAD to create Spice simulation files. TinyCAD incorporates a powerful Spice template engine, which enables you to add Spice output to any symbol. Although there is no formal Spice symbol library supplied with TinyCAD there are some examples of Spice libraries available from the Yahoo forum.

The Spice template engine is capable of generating Spice files for almost any Spice engine, there are plently of free engines available. The template engine also supports the use of conditional statements, so that advanced simulation systems are possible.

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Download TinyCAD Libraries

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Logic Circuit Designer – Gate Circuit Designer Software

This program allows you to create and simulate how these things work. You can also add, move delete logic gates in order to form various circuits and include a truth table function.

From the practical point of view, this paper refers to an educational software developed as a technological tool for understanding the logic circuits operation. Using such an interactive designer software, we have the main advantage and the opportunity of removing all the possible design errors even before proceeding to the expensive component manufacturing and assembly. From the educational point of view, our application, Logic Circuit Designer, is aimed to help both those students and users, studying computer architecture or more specifically, digital logic circuits. This product is a simulator for logic circuits, allowing the student to better visualize and understand how a logic circuit works, by enabling him to build whatever logic circuit he wants, and visually simulate its operation. Based on a friendly user interface, the student can interact with its logic circuit, flip switches, change the input data, and watch the output data changes for sequential models. We are sure that this tool will be of great help to any student who has interest in this field, and enable him to better understand the logic circuit design process

Operating system: Windows Vista, Windows 7, Windows XP, Windows 2000, Windows 98

Download version 1.5

Download version1.1

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AppCAD RF And Microwave Design Calculations Software

AppCAD is an easy-to-use program that provides you with a unique suite of RF design tools and computerized Application Notes to make your wireless design job faster and easier. AppCAD‘s unique, interactive approach makes engineering calculations quick and easy for many RF, microwave, and wireless applications. AppCAD is useful for the design and analysis of many circuits, signals, and systems using products from discrete transistors and diodes to Silicon and GaAs integrated circuits. The keyword for AppCAD is easy – no circuit files, no manuals – just quick and easy.

• 2-Port Single-ended to 1-Port Differential Impedance conversion
• Gain (five different gains)
• Stability analysis (µ1, µ2, K)
• Matching impedances (gain and NF)
• Return Loss, VSWR
• Gain Variation (including min/max, average, and mid-band gains)
• Isolation (reverse gain)
• Phase Linearity, Group Delay
• Noise Figure
• Gain, stability, and NF circles
• … and more

System Requirements

AppCAD is designed to run on all 32-bit Windows® operating systems.

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Electronics Assistant:

Electronics Assistant is a Windows program that performs electronics-related calculations. It includes a resistor colour code calculator, resistance, capacitance and power calculations and more. Details of calculations can be saved or printed. It provides all the functions found in the calculators section of this site and more in a stand-alone user friendly program.

• Converts Resistor & Inductor colour codes, calculates LED series resistors, capacitance units, series / parallel resistors & capacitors, frequency, reactance & more
• Calculation of nearest preferred resistor values with a choice of 5 series from E12 to E192
• Print & save calculation results
• Quick access to Windows® Calculator and up to 3 user-defined programs from the toolbar
• Information panels showing theory and equations can be toggled on or off to save space when not required
• Windows® 98, ME, 2000, XP, Vista, Linux (via WINE)

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NE 555 Timer Designer

Program Name: TimerDesigner
File Size: 927KB
Platform: Windows 95/98/NT/2000/Vista
License: Freeware
Description: TimerDesigner allows you to easily design Asymmetrical Oscillator, Symmetrical Oscillator, & One Shot 555 timer circuits in seconds!

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Current Transformer Design Software

This design routine assists design engineers in choosing the most appropriate core material and size for a number of different current transformer (CT) topologies.  Namely, the following three CT styles are included:

* “Traditional” (often line frequency) Current Transformers – “Traditional” Current Transformers fall into a general category known as instrument transformers. Their main purpose is to produce, from the primary current, a proportional secondary current that can easily be measured or used to control various circuits. The primary winding is connected in series with the source current to be measured, while the secondary winding is normally connected to a meter, relay, or a burden resistor to develop a low level voltage that is amplified for control purposes.

* Hall Effect Current Transformers -  The characteristics of a Hall Effect generator make it suitable for detector elements in magnetometers, clamp-on DC-AC ammeters, transducers, magnetic field variation meters, and wattmeters.
In the specific case of current sensors, the Hall generator/sensor is placed within air gap of a magnetic core. The core is usually a toroid, and features a soft magnetic material (such as ferrite, Molypermalloy powder, or Kool Mu®). An initial core size is chosen to support the central primary conductor, and a gap is estimated to accommodate not only the thickness of the Hall Sensor itself, but also to ensure that the correct flux field will be set up within the core material at the sensor’s peak current to be detected.

* SMPS Current Transformers - Current Transformers for SMPS designs are used to sense current levels within the control loop of the power supply. The current transformer in this scheme (usually made using a ferrite toroid) helps to track the current in the control circuit’s feedback loop. This current is then used to determine how the future behavior of the SMPS will be modified. For instance, the duty cycle (for pulse width modulated systems) might be altered for future switching cycles.

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Pad2Pad Free PCB Design Software

Pad2Pad is the remarkable new printed circuit board manufacturer providing all your custom printed circuit board needs:

● Auto routing
● Net list import ● Auto error check
● 1, 2 or 4 layers
● Silk screen
● Solder mask
● Any board shape
● Separate boards or panels
● Multiple board thicknesses
● 1, 1.5, 2 oz copper
● Gold plating
● Gerber files also accepted
● NEW – Full Assembly Services

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