A design diagram refers to a particular kind of circuit structure that uses standard electrical/electronic symbols instead of pictures to show how a circuit (or portion of it) functions. Below is a standard 3-wire motor controller circuit utilizing a standard short stop halt - start pushbutton channel utilizing a schematic diagram. (Momentary this means that the button/switch you activate will return to its default position once you let go of it, usually by a spring that compels the button/switch to get this done.)
Consider it this way; a circuit diagram is any type of diagram which illustrates how a circuit operates where the most important objective is the appropriate wiring of components and their relationship to each other instead of physical location relative to each other or planning prototypes. Nonetheless, in some uses classifying diagrams can be challenging so take this as overall advice. I have discovered this is especially true when dealing with much more complex circuits and electronics. I'm likely to use a simpler but typical industrial circuit since these circuit set ups are the exact same, but yet where you can see how each kind of diagram indicates the operation of the circuit in their own manners.
Pictorial design diagrams, or pictorial circuit diagrams are basically the exact same thing with exactly the exact same purpose, but they use pictures of elements inside the circuit instead of symbols. Again, here is the exact exact circuit (almost except a control transformer was inserted and they are utilizing conductors L1 and L3 instead of L1 and L2.
Here's another schematic diagram demonstrating the same circuit, connections and components and it appears different but they both fall into the exact same category.
Right, less mess? I've got enough info in all these diagrams to know just what this circuit does and where to look for issues. Hope that this helps. ( Note: don't confuse lecture or circuit diagrams together with wiring diagrams; wiring diagrams will often demonstrate pictures of elements like the pictorial, and how the entire or portion of a circuit will be wired. The difference is that wiring diagrams usually place an emphasis on actual physical location of necessary elements relative to each individual that essentially tell a layman exactly what to do concerning the wiring. )
Here is a specialized version of a design diagram. The principal intent of this diagram will be to demonstrate the logic (speaking to electric management ) of a circuit. This diagram is the one that I mostly encounter in my line of work, and it's extremely successful for troubleshooting issues or learning the way the circuit works. Some circuits are so huge that many kinds of schematic diagrams need to be read in increments in novel form (normally with coded numbers so info can be simpler located ). Again, here is the exact exact circuit because the first two, however, considering it in ladder form.