Means for controlling a coil arrangement with electrically variable inductance

摘要

The invention relates to a special control for current-controlled inductors which allows inductance to be varied at a considerably faster rate than is the case in the prior art. The control presented in the invention can be employed for coil arrangements which carry at least one control winding and at least two working windings on a ferro or ferromagnetic core material. The accelerated change in inductance is achieved by means of a demagnetizing inverse voltage impulse which is generated by a special part of the circuit.