The gyrator
An ideal gyrator is a two port network whose input (respectively output) voltage (respectively output) is directly proportional to the output (respectively input) current. The ratio
is usually called the "gyration resistance". In the case of this lecture, we will use the "coupling factor" (for reasons that will become apparent in the following lectures, see section 3.2).
In the case of an asymmetrical respresentation, a gyrator is illustrated by:
The relations between current and voltage are written:
where
and
represent the number of primary (subscript
on schematic) and secondary (subscript
on schematic) windings.
Attention : Caution
The electrical impedance
at the input of the gyrator depends on the admittance at the output
:
.
