We are increasingly using computer and virtual instruments. It's already not always to draw on paper the schemes - for a long time, it is not always beautiful and fixed. In addition, the scheme drawing program can issue a list of necessary elements, simulate the printed circuit board, and some may even calculate the results of its operation.
Free programs for creating schemes
The network has a lot of good free software for drawing electrical circuits. Professionals of their functional may not be enough, but to create a power supply scheme of a house or apartment, their functions and operations are enough with a head. Not all of them are equally convenient, there are difficult in development, but you can find several free software for drawing electricity that can use any, so in them is a simple and understandable interface.
The easiest option is to use the standard Windows Paint program that is practically on any computer. But in this case you will have all the elements to draw yourself. A special program for drawing schemes allows you to insert ready-made items to the desired places, and then connect them using lines of communication. About these programs and talk on.
Free program for drawing schemes - does not mean bad. On this photo work with fritzing
Electric circuit editor QELECTROTECH
The QELECTROTECH scheme drawing program is in Russian, and it is fully Russified, explanations - in Russian. A convenient and understandable interface is a hierarchical menu with possible elements and operations on the left side of the screen and several tabs at the top. There are also quick access buttons to perform standard operations - save, printing, etc.
Electric circuit editor QELECTROTECH
There is an extensive list of finished elements, it is possible to draw geometric shapes, insert text, make changes on a specific area, change in some separate fragment direction, add lines and columns. In general, the program is quite convenient with which it is easy to draw a power supply scheme, to put the name of the elements and the nominal. The result can be saved in several formats: JPG, PNG, BMP, SVG, import data (open in this program) in QET and XML formats, exported in Qet format.
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The lack of this program for drawing schemes is the lack of video in Russian on how to use it, but there is a considerable number of lessons in other languages.
Microsoft Editor - Visio
For those who have at least a small experience with Microsoft products, master work in the Visio graphics editor (Visio) will be easy. This product also has a fully Russified version, and with a good translation level.
Make electrical circuits in Visio easy
This product allows you to draw a scheme on a scale, which is convenient for calculating the number of necessary wires. A large library of stencils with symbols, various components of the scheme, makes a job like a designer assembling: you need to find the desired item and put it in place. Since many are accustomed to work in the programs of this type of this type, the search complexity does not represent.
To the positive moments include the presence of a decent number of lessons for working with this program drawing schemes, and in Russian.
Compass Electric
Another program for drawing schemes on a computer is an electrician compass. This is a more serious product that professionals use. There is a wide functionality that allows you to draw different plans, flowcharts, other similar patterns. When transferring the scheme to the program in parallel, the specification and the mounting diagram and the switches are made to print.
To get started, you need to load the library with the elements of the system. When choosing a schematic image of a particular element will "pop up" the window in which there will be a list of suitable parts taken from the library. From this list, choose the appropriate element, after which it is schematic image appears in the specified location of the scheme. At the same time, the corresponding designation with through numbering is automatically affixed (the program changes herself). At the same time, the parameters (name, number, denomination) of the selected item appear in the specification.
Example of a scheme created in a compass electrician
In general, the program is interesting and useful for developing devices. It can be used to create a wiring scheme in a house or apartment, but in this case its functionality is almost not used. And one more positive moment: there are many video lessons working with a compass-electrician, so it will be easy to master it.
DipTrace program - for drawing single-line schemes and principal
This program is useful not only for drawing the power supply schemes - everything is simple, since only the scheme is needed. It is more useful for the development of boards, as it has a built-in function of converting the existing circuit in the route for a printed circuit board.
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Source diagram (multivibrator) drawn and DipTrace
PCB circuit
Multivibrator board itself
To start work, as in many other cases, you must first load the library with an element base on your computer. To do this, run the Schematic DT application, after which you can download libraries. They can be downloaded on the same resource where you will take the program.
After downloading the library, you can proceed to drawing the scheme. First, you can "drag" the desired items from libraries to the working field, deploy them (if necessary), arrange and associate communication lines. After the scheme is ready, if necessary, in the menu, select the "Convert to the fee" string and wait for a while. The output will be a ready-made printed circuit board with the location of the elements and tracks. You can also in the 3D version view the appearance of the finished board.
Free Prog Proficad for Electroschem
Free program for drawing Proficad schemes is one of the best options for a home master. It is easy to work, does not require special libraries on a computer - there are also 700 elements in it. If they are not enough, you can easily replenish the database. The desired item can be simply "dragging" on the field, turn it out there in the desired direction, set.
Example of using Proficad for drawing electrical circuits
Having drawn the scheme, you can get a table of compounds, a statement of materials, a list of wires. Results can be obtained in one of the four most common formats: PNG, EMF, BMP, DXF. A pleasant feature of this program - it has low hardware requirements. It normally works with systems from Windows 2000 and above.
There is only one drawback from this product - there is no video about working with it in Russian. But the interface is so clear that it is possible to figure it outself, or to see one of the "imported" rollers to understand the mechanics of work.
Paid to which you want to spend
If you have to often work with the scheme drawing program, it is worth considering some paid versions. What are they better? They have a wider functionality, sometimes more extensive libraries and a more thoughtful interface.Simple and comfortable splan
If you do not really want to deal with the subtleties of working with multi-level programs, take a look at the Splan proluste. It has a very simple and understandable device, so in an hour and a half of the work you will be free to navigate.
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As usual in such programs, a library of elements is needed, after the first start, they must be loaded before work. In the future, if you do not transfer the library to another location, the setting is not needed - the old path to it is used by default.
SPLAN scheme drawing program and its library
If you need an item that is not in the list, it can be drawn, then add to the library. It is also possible to insert foreign images and maintain them, if necessary, in the library.
From other useful and necessary functions - autonumberation, the ability to change the scale of the element by rotating the mouse wheel, the ruler for more understandable scaling. In general, a pleasant and useful thing.
Micro-Cap
This program, in addition to constructing a scheme of any type (analog, digital or mixed), allows you to analyze its work. The initial parameters are set and get output. That is, you can simulate the operation of the scheme under different conditions. A very useful opportunity, therefore, probably, they love teachers very much, and students.
The Micro-Cap program has built-in libraries that can be replenished using a special function. When drawing the electrical circuit, the product automatically develops the chain equation, also calculates depending on the populated denominations. When changing the nominal, the change in the output parameters is immediately.
The program for the drawing of power supply schemes and not only - more to simulate their work
Nominal elements can be permanent or variables, depending on various factors - temperature, time, frequency, state of some elements of the circuit, etc. All these options are calculated, the results are issued in a convenient form. If there is a detail in the scheme that change the view or state - LEDs, relays - when simulated operation, change their parameters and appearance due to the animation.
The program for drawing and analyzing the micro-cap schemes is paid, in the original - English-speaking, but there is a Russified version. Its cost in the professional version is more than a thousand dollars. The news is that there is also a free version, as usual with trimmed possibilities (a smaller library, no more than 50 elements in the scheme, reduced speed). For domestic use, this option is fully suitable. It's nice more that it normally works with any Windows system from Vista and 7 and above.