To make small electronic products, we must design and produce printed boards, and complete the design of printed boards under amateur conditions. The tedious process is a headache: First, use printed circuit boards for circuits of interest in electronic newspapers. The carbon paper is described on the copper-clad plate and then etched with ferric chloride solution. After the etching is completed, the rinsing is carried out and the paint is dried to remove the paint. Then, the borax is bored, the rosin liquid is applied, the components are welded, and the adjustment test is performed.
Is there a better way? The answer is yes, using computer aided design and production. This form is completely feasible.
First, if you don't have a computer, you can buy a second-hand computer first, but the display must be colored, because in the design of the various circuit board levels, device pads, characters, etc. are distinguished by different colors.
Second, computer operation is not too difficult. The key is to have confidence in challenging themselves and pursuing new knowledge. Moreover, with the development of computer technology, the user interface is becoming more and more user-friendly. Then, computer-aided design and simulation are used. The method is relatively simple and does not require excessive computer and other professional operating skills. If you want to complete the schematic drawing through the computer until the printed board production, you can choose PROTEL, PADS two types of circuit and printed board design software, the biggest advantage is that the schematic diagram made of the convenience of the printed board, which happens to happen It is our most troublesome problem that can completely solve the annoyances mentioned above in the design of printed boards. After the design of the printed board is completed, the laser printer can output the conditions, the screen board can be produced, and the printed board can be printed by using the screen printing method. The effect is quite different from the previous one. This is already a professional level of production. The poor condition of the available dot matrix printer (the output mode is set as the process diagram) is output to the sticker paper, and then the adhesive paper is affixed to the copper plate that has been cleaned and then cut along the line contour with the cutter blade. Out, the part of the paper to be etched is torn off, put into the ferric chloride solution to erode, and a printed board with good effect can also be produced. If you also want to verify the feasibility of the circuit, the past practice is to make a printed circuit board. The better is to use a breadboard and then lap-connect the circuit for testing. This is not only time-consuming and labor-intensive, but it is also limited by equipment and equipment. Can not find the problem, can not reach the goal. Now we can perform simulation tests on the computer. The so-called simulation is to simulate the actual environment using software debugging methods to test, the system will also provide us with such as multimeter, oscilloscope, frequency meter and other equipment, such software common PSPICE, ELEC WBCH and so on.
Third, in life, learning and applying new technologies such as computer aided design and circuit simulation will greatly expand the development space for electronic technicians.
In short, for many electronic enthusiasts, it is fully conditional, necessary, and capable of reforming the design of circuits and printed boards. We believe that the vast majority of electronic enthusiasts will be able to take active actions and enter computer-aided design and simulation as soon as possible. The palace.
Source: Peter Pan Electronic Network