Consider it this way; a circuit structure is any kind of diagram which illustrates how a circuit functions where the principal goal is the appropriate wiring of elements and their connection to each other rather than physical location relative to one another or intending prototypes. Nevertheless, in some uses classifying diagrams can be hard so choose this as overall information. I've found this is especially true when working with much more complex circuits and electronic equipment. I'm going to work with a more straightforward but average industrial circuit because these circuit setups are exactly the same, but nevertheless where it is possible to see how each sort of diagram indicates the operation of the circuit in their own manners.
Less clutter, right? I've got enough info in every one of these diagrams to know exactly what this circuit will do and also where to start looking for issues. Hope that this helps. ( Note: do not confuse circuit or schematic diagrams together with wiring diagrams; wiring diagrams will often show pictures of elements such as the pictorial, and also the way the entire or portion of a circuit has been wired. The distinction is that wiring diagrams typically put an emphasis on real physical location of necessary elements relative to each other that basically tell a layman exactly what to do concerning the wiring. )
Following is a version of a design diagram known as a ladder diagram. The most important intention of this diagram will be to show the logic (referring to electric control) of a circuit board. This really is the one that I mainly come across in my own line of work, and it's very successful for troubleshooting problems or learning how a circuit functions. Some frequencies are so enormous that most kinds of schematic diagrams have to be read in increments from book form (typically with coded numbers so that info can be simpler found). Again, here is the exact same precise circuit because the first two weeks, however, considering it in ladder type.
Pictorial design diagrams, or pictorial circuit diagrams are basically the same thing with the identical purpose, but they use pictures of elements inside the circuit instead of symbols. Again, here's the exact precise circuit (virtually except a controller was added and they're utilizing conductors L1 and L3 instead of L1 and L2.
Here is another schematic diagram showing exactly the identical circuit, connections and components and it seems different but they fall into exactly the exact same category.
A design diagram refers to a particular sort of circuit design that utilizes standard electrical/electronic symbols rather than pictures to show the way the circuit (or a part of it) functions. Below is a typical 3-wire motor controller circuit utilizing a normal momentary stop - start pushbutton station employing a schematic diagram. (Momentary here means the button/switch you activate will return to its default location once you physically let go of it, typically by a spring that compels the button/switch to do this.)