A schematic diagram refers to a particular sort of circuit structure that utilizes standard electrical/electronic symbols instead of images to show the way the circuit (or portion of it) functions. Below is a standard 3-wire motor control circuit using a typical short stop halt - start pushbutton channel using a schematic diagram. (Momentary this means that the button/switch you activate will return to its default place once you let go of this, typically by a spring that forces the button/switch to get this done.)
Less clutter, right? I have enough info in every one these diagrams to know just what this circuit does and also where to search for issues. Hope that this helps. ( Note: don't confuse lecture or circuit diagrams together with wiring diagrams; wiring diagrams will often show pictures of elements such as the pictorial, and also how the entire or portion of a circuit will be wired. The distinction is that wiring diagrams typically place an emphasis on real physical place of necessary components relative to each other that basically tell a layman exactly what to do concerning the wiring)
Pictorial design diagrams, or pictorial circuit diagrams are essentially the same thing with exactly the identical purpose, but they use pictures of elements inside the circuit instead of symbols. Again, here is the identical specific circuit (almost except a control transformer was included and they are utilizing conductors L1 and L3 rather than L1 and L2.
Here is another schematic diagram showing the same circuit, connections and components and it looks different but they fall into precisely the same category.
Consider it in this way; a circuit structure is any sort of diagram which demonstrates the way the circuit operates where the primary goal is that the appropriate wiring of elements and their connection to each other instead of physical location relative to one another or planning prototypes. However, in some applications Assessing diagrams can be hard so choose this as general advice. I have found this is especially true when dealing with more complex circuits and electronics. I'm likely to use a more straightforward but typical industrial circuit since these circuit setups are the exact same, but nevertheless where you're able to observe how each type of diagram shows the function of the circuit in their own manners.
Here is a specialized variant of a design diagram. The main goal of this diagram is to show the logic (referring to electrical management ) of a circuit board. This really is the one I mainly encounter in my own line of work, and it's extremely effective for troubleshooting problems or learning how a circuit works. Some circuits are so enormous that most kinds of schematic diagrams need to be recorded in increments in novel form (generally with coded numbers so information can be easier located ). Again, here's the same exact circuit since the first two weeks, however looking at it in ladder shape.