DEVICE WITH CONTROLLABLE IMPEDANCE
The invention relates to a circuit component (L1) with controllable impedance, comprising a body (1) of a magnetisable material, a main winding (A1) wound round the body (1) about a first axis and a control winding (A2) wound round the body (1) about a second axis, at right angles to the first axis, where the main winding (A1) is arranged for connection to a working circuit in which the circuit component (L1) is to be employed and the control winding (A2) is arranged for connection to a control unit for controlling the impedance in the working circuit. The invention also relates to various current and voltage regulating devices comprising the circuit component or a similar transformer device.