twocoil
Twocoil is a term used in electronics to describe a pair of magnetically coupled coils. It is a simple two-winding element that underpins many devices and systems, including transformers, inductive sensors, and wireless power links. While not a formal standard term, it serves as a convenient shorthand for studying or describing two closely linked inductors.
The behavior of a twocoil system is governed by mutual inductance M between the coils and their
Common applications include power transfer between coils in wireless chargers, the transformer stages in power supplies,
Design considerations cover core materials, air gaps, the number of turns, wire gauge, and parasitic elements
See also: transformer, mutual inductance, inductive charging, RF coil, wireless power transfer.