It's definitely not simple, but I think it's approachable, even for a beginner, but you've got to put in the work. Find parts that you think might work, then di

It's definitely not simple, but I think it's approachable, even for a beginner, but you've got to put in the work. Find parts that you think might work, then dig into their datasheets and read the related application notes. Look at the eval boards. When you find something you don't understand, look it up. Manufacturers want you to use their parts, and often they will provide everything you need to know to be successful. Look at Texas Instruments and Linear Technologies / Analog Devices for excellent documentation.