Device for multiplexing several AC excited loads

摘要

This electronic device for multiplexing several charges at the terminals of an AC electrical excitation power source comprises: - means (7,8,9) for coupling by electromagnetic flux the said AC electric power source (4) to the loads (1, 1'; 2, 2'; 3, 3'), comprising at least one primary excitation winding (71, 81, 91) connected to the terminals of the AC electric power source (4), and secondary windings (72), equal in number to the loads (1, 1'; 2, 2'; 3, 3'), at least partially coupled to the primary winding (71, 81, 91) and each connected to the terminals of a load (1, 1'; 2, 2'; 3, 3'); - means for inhibiting the means (7,8,9) for coupling by electromagnetic flux, comprising auxiliary windings (73), equal in number to the loads (1, 1'; 2, 2'; 3, 3'), each completely coupled with a secondary winding (72); and - means (40) for controlling the inhibition means, inhibiting all the magnetic couplings except one which changes as a function of the load (1, 1'; 2, 2'; 3, 3') to be coupled to the AC electric power source (4). IMAGE