I’m working on creating a product for controlling industrial equipment and I’m now confident in the cloud interface, particle device, and coding.
My focus is now turning to creating the circuit and PCB design. My product utilizes relays to control 480VAC motor starter contactors and takes some input data from sensors. I’ve built the proof of concept on a breadboard and tested functionality in the industrial environment. Now I need to make it work for 5 years.
Problem: I look at similar products and see boards jammed with opticouplers, varisters, ICs, and all sorts of other components. I don’t know what I need and what i just don’t know enough about to even know I don’t know. I know Eagle and other products are good for building circuit layouts but there’s the middle step.
Does anyone have a good reference, book, or resource for a crash course in circuit design? I’m needing help figuring out how to ensure my product can survive real world conditions. I realize there are companies that do this and might end up going that way. Before I reach that point and until I prove up a business case, I’d like to put some sweat equity in this myself to learn.
This is the only post I found on circuit design. Most post focus on PCB layouts, but not on determining what components and such are necessary by best practices.