Hybrid coil
In
telecommunication, a
hybrid coil (
bridge transformer) is a single transformer that effectively has three windings, and which is designed to be configured as a
circuit having four branches, (i.e. ports) that are conjugate in pairs.
- The primary use of a hybrid coil is to convert between 2-wire and 4-wire operation in concatenated sections of a communications circuit. Such conversion is necessary when repeaters are introduced in a 2-wire circuit.
Source: from
Federal Standard 1037C and from
MIL-STD-188