Couplers, also known as "isolators" because they electrically isolate and transmit data, are widely used in industrial, factory, instrument and telecommunication networks. Everyone knows the problems with optocouplers. They have a lot of space, they are slow, old optocouplers and their temperature range is quite limited. For years, optical couplers were the only option.
Over the years, most of the components used to build instrumentation circuits have become smaller and smaller. The technology of the optocoupler, however, has not continued. Existing coupler technologies look like dinosaurs in modern circuit boards.
Magnetic couplers are analogous to optocouplers in several ways. Design engineers, especially in instrumentation technology, will welcome a galvanically isolated data coupler with integrated signal conversion into a single IC. My report will give a detailed study on the "Isoloop magnetic couplers".
When equipment using different power supplies is connected (with a common ground connection) there is a potential for ground loop currents to exist. It is an induced current at the common ground line as a result of a potential earth leakage in each equipment. Normally, all motives do not have the same potential.
Extensive electrical and communications networks often have nodes with different land domains. The potential difference between these motifs may be AC or DC, and may contain several noise components. Motifs connected via cable shield or logic line ground can create an unwanted ground-current loop on the cable. Ground loop currents can degrade data signals, produce excessive EMI, damage components and, if the current is large enough, present a risk of electric shock.
Galvanic isolation between circuits or nodes in different land domains eliminates these problems by transparently passing the signal information while isolating ground potential and transient differences in common mode. The addition of insulation components to a circuit or network is considered a good design practice and is usually mandated by industry standards. Isolation is often used in modems, LAN and industrial network interfaces (eg network hubs, routers and switches), telephones, printers, fax machines and switched power supplies.