Here is another schematic diagram showing the same circuit, connections and components and it seems different but they fall into the same category.
Right, Less clutter? I've got enough information in each one of these diagrams to know exactly what this circuit will do and where to look for issues. Hope this helps. ( Note: don't confuse circuit or schematic diagrams together with wiring diagrams; wiring diagrams will often show images of components such as the pictorial, and the way the whole or portion of a circuit will be wired. The difference is that wiring diagrams usually place an emphasis on real physical location of necessary components relative to each individual that essentially tell a layman exactly what to do about the wiring)
Think of it this way; a circuit structure is any type of diagram that illustrates how a circuit functions where the main objective is the proper wiring of components and their relationship to each other instead of physical location relative to one another or intending prototypes. However, in some applications classifying diagrams can be difficult so take this as general information. I have found this is especially true when dealing with much more complex circuits and electronics. I'm going to work with a simpler but average industrial circuit because these circuit setups are the exact same, but where you're able to observe how each sort of diagram indicates the role of the circuit in their own ways.
Pictorial schematic diagrams, or pictorial circuit diagrams are essentially the exact identical thing with exactly the identical purpose, however they use images of elements inside the circuit instead of symbols. Again, here's the exact identical precise circuit (almost except a control transformer was added and they're using conductors L1 and L3 instead of L1 and L2.
Here is a technical variant of a schematic diagram. The most important purpose of this diagram will be to show the logic (speaking to electric control) of a circuit board. This diagram is the one that I mostly encounter in my own line of work, and it is extremely effective for troubleshooting problems or learning how a circuit functions. Some frequencies are so huge that many kinds of schematic diagrams need to be recorded in increments from novel form (typically with coded numbers so that info can be simpler found). Again, here's the exact exact circuit because the first 2, however looking at it in ladder form.
A design diagram refers to a specific sort of circuit diagram that utilizes standard electrical/electronic symbols rather than images to demonstrate the way the circuit (or portion of it) works. Below is a typical 3-wire motor controller circuit using a normal momentary halt - start pushbutton station employing a schematic diagram. (Momentary this means that the button/switch you trigger will return to its default place once you let go of it, typically by a spring that compels the button/switch to do this.)