Circuit and method for transmission of switching information with potential separation.

摘要

Circuit for transmitting switching information across a potential separation or isolation voltage, wherein a switching signal input (102) on the first side, the primary side circuit, is divided into two routes, a first path for controlling a first bidirectional switch (32) and a second path after an inversion of the switching signal input to activate a second bidirectional switch (34), a source of alternating voltage (20) connected in the first pole with a first winding (12) of the primary side of a transformer (10), the first winding (12) further connected to a second winding (14) of the transformer (10) via a center tap of the primary side of said transformer, and further connected center tap I being with the first switch (32) and this, in turn, with the second pole of the voltage source (20), the second winding (14) connected c on its end which is not connected to the center tap with the second switch (34) and being it (34) also connected to the second pole of the voltage source (20), and wherein the transformer's secondary side a winding (16 ), which it is connected to the inputs of a rectifier (50) on the secondary side of the circuit whose output is positive switching signal output (104).