Simplified analysis of complex circuits

circuit analysis

This is a question in very general sense. When we got to analyze very complex schematics, is there any way by which it can be made simpler. Like do we have any key steps to analyze it with.

Best Answer

I don't think there is a simple general rule that lets you break down any complex circuit into small modules to simplify understanding.

The first steps I usually take is to understand what is the circuit's purpose and to find its "interfaces" (power supply, input and output signals). Then I try to examine the "path of the signal" through the circuit, so I can focus on the "important parts".

You need to understand which parts and devices are fundamental for the functionality and which are just "accessory parts" (e.g. for noise suppression, ESD protection).

If you manage to proceed these steps, you usually get a good understanding of the circuit.

In general, like in software development, I think a circuit designer should always provide good documentation in the schematics by simply adding helpful notes to the different parts of the circuit. Unfortunately, often there is not a single note in schematics. Here, hardware designers could learn a lot by their software colleagues...