Low-voltage low-voltage filters with carrier-frequency message transmission

摘要

To produce a balanced broadband blocking filter for low-voltage networks which are used for carrier frequency information transmission, a triple-chain filter structure is proposed. In the filter, a series coil (L1), which bridges a series circuit comprising three resistors (R1 to R3), is disposed between the input and output. A bypass coil (L2, L3) is in each case connected to the connecting points between two resistors (R1 and R2 or R2 and R3). The outputs of the bypass coils (L2, L3) are connected to one another and to a bypass capacitor (C). IMAGE