An ounce of Optocouplers is worth a pound of ferrites and shielding 10 December 2012

Traditionally, optocouplers have found their greatest niche in providing “safety” isolation, mostly driven by domestic and international regulatory requirements. This traditional role finds applications in equipment such as power supplies where lethal high voltage potentials need to be isolated from low-voltage, “user accessible” circuitry, and in potentially explosive environments where infrared light is used for data transfer and switch signalling. ...