COMPUTER AIDED DESIGN ELECTRONICS


First things first: CAD means computer-aided-design or computer-aided drafting. One might have some ideas in mind regarding design, like creating appealing visuality or sketching drafts. However, design in mechanics is not only about shapes, but also materials, tolerances, and dimensions. It is rather about the appearance than matching elements. What has to be done to design in the field of mechanics will be deferred to later. Formerly, the design process was done manually by drawing, but nowadays certain software offer support: so-called CAD tools. Those tools for CAD are used for example in the automotive, aerospace, and architectural industry – so basically in every industry that is dealing with design in a technical way. There are indeed many CAD tools on the market. But what are they needed for? All in all, one must know which demands he wants to meet with the software.

Designing in Electronics Engineering

One department, where CAD tools are indispensable is Electronics Engineering. Instead of CAD, we are talking more about Electronic Computer Aided Design Tools (ECAD) or Electronic Design Automation (EDA) here, which are specifically for the tasks of an Electronics Engineer. This allows him to do Computer Aided Engineering (CAE). It has slightly different requirements than the normal CAD tools fitting the needs of the electronics “designer”. What has to be designed in Electronics Engineering are Printed Circuit Boards (PCBs) or electronics systems. As this is a truly complicated task, the tools must be created for this concretely. A circuit board or Printed Circuit Board is an important element of any electronics system. In easy words, it is the brain controlling the parts of the device it is implemented in. You can find it in any electronic devices used daily, such as smartphones and computers and even in a hairdryer, but also in washing machines and driving vehicles. Therefore, the engineer has to know exactly what the PCB should control, which signals it should process. The PCB designer has to choose the elements that are needed on the PCB out of many options for each component. The choice is depending on many factors, as for example:

  • the use of the circuit board (what should it control?)
  • the environment it will be used in (is it outside, inside, wet, …?)
  • the components' compatibility to each other (do they work together, e.g. regarding the voltage?)

After selecting the components, the PCB “designer” places them on the board. There are also certain things to be respected, for example, it should be needed as least space as possible. Sometimes the shape of the device demands a certain shape of the PCB. As the last step, the components need to be connected. This also is a truly complicated task and the board-designer appreciates being supported by a software or more specifically: an ECAD tool.

visit:https://cad-conferences.sciencefather.com/

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