http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Gồm 11 chương, giới thiệu các phần tử rời rạc, các mạch điều khiển và thiết bị cũng như phạm vi ứng dụng của chúng trong thực tế sản xuất.
Các bộ nguồn-Bộ khuếch đại-Bộ tạo tín hiệu-Bộ biến tần