How are electronic circuits designed?

Question

How are electronic circuits designed?

Answer 1

It is done by using their aquired knowledge with which they have a full understanding of the meaning and basis regarding the electronic components they will be using. In other words they didn't just memorize information in school but rather formed a comprehensive understanding of not only facts but the inter-relationships as well.





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Again the use of related information coupled with experience (another form of learning) and forward thinking. Component placement takes into account how a component is used and how it will be attached in the circuit for not only initial construction but service/repair as well. Related design factors also come into play such as giving priority to making a small size PCB which might require placing components on both sides vs a single side on a larger printed circuit board. A larger board with components on one side is easier to make. Which you choose depends upon your priority and needs of the final PCB.

Answer 2

If they're doing it by hand, then they use years of study, college-level courses. training, and experience. A large part of the design process is copying parts of circuits that have been developed over many decades by hundreds of experiments.



Even computer-designed circuit layouts have to be guided and tweaked by humans.

Answer 3

i don't think so if there is also it may be used in big companies or u hav to get it manufactured

Answer 4

For basic electronics design you can check this site http://www.eeweb.com/extreme_circuits. I learned from this site..:-) They have a basic circuit designs that newbie can easily understand..

Answer 5

Here is the quick an easiest answer about how to know where and why electronic components are placed: study the textbooks for an electronic engineering technician level course. This type of course teaches the student about the basics of what electronic circuits do and how to build them. This is mainly done so that electronic engineering technicians can maintain, troubleshoot and install electronic circuits.



Electronic Engineering Technicians can design and build electronic circuits. However, they are not qualified to design to level where they can account for things such as inductance and capacitance of the traces between electronic components. That would require an electrical engineer. Technicians are not the people whom sign off on circuit designs for such things as pacemakers or cellphone towers.



Aside from studying technician level textbooks, there are lots of books available on electronics and on a wide range of topics within the category. There are Dummies, Idiot's Guides, Demystified, Evil Genius, and many other series or authors available. There are also many websites available on many topics. There are a lot of ways you can get started with electronics from working on the basics such as a simple battery powered circuit with resistors in series as well as how to build a robot that can "see" using the xBox Kinect system.



Lately, I have been suggesting that people use a technician's level textbook on basic electronics as a guide and work through the WISC-ONLINE tutorials on electronics. It is a very helpful website. As you progress you can move on to solid state devices and then digital electronics.



There are also microcontroller kits available for every level of enthusiast from the beginner hobbyist to the engineering professor or professional engineer. Make sure to check out those websites providing and showcasing people's projects.

Answer 6

First off they have an understanding of electronic principles. They understand how basics like NOR and NAND gates work. They understand how NOR and NAND gates can be arranged to make things like counters, dividers, adders, etc. Starting with such knowledge and an ambitious design goal, the large problem of a design goal is broken down into many small problems. This continues until the problems are small enough that their experience or research into previous solutions to similar problems can allow them to design a hardware solution made out of available components. This process is all about turning a big black box into a bunch of smaller simpler black boxes and those into working designs.



Re your question about "psedo code", software is done much the same way. A large program design is broken down into sections, the sections into functions, the functions into routines. At that point, the compiler (a program that can convert all this high-level code into code the micro can understand) will convert all into code. Then there is generally a period of test/debug until the design is complete and meets specs. The group of instructions a microprocessor is able to preform is like bricks. The finished program is a house made out of those bricks.



As far as "where they place the components", that comes after the design of the circuitry, which is a schematic. Then a PCB designer will translate that schematic into a board layout. Generally he will first place certain things that have to be located at specific places, things like connectors along an edge, maybe a central heatsink for the components requiring heatsinking, etc. Then he will place the components such that he trys to minimize the length of traces - components that are directly connected to each other will usually be placed close to each other. PCB design is much simpler nowadays with programs that can have a schematic as an input, and from that generate what's called a rat's nest, a view of all the components and all of their connections on the screen at once. The designer then cleans up the rat's nest one wire at a time.



You can try this out for free. Go to www.expresspcb.com and download their free schematic entry and PCB design programs. These 2 programs are separate, but link together. Generate your own schematic or simply open one of many examples included. Then open the PCB designer and link it to the schematic. This pair of programs is very easy to use, much easier (but also much less powerful) than more expense programs that exist. Yet even then there is Kicad, a very powerful yet free schematic entry/PCB design suite.