ES304669A1 - Signal repeater (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Signal repeater in a communications line to conduct a substantially constant DC current and communication signals, composed of a first energy separation filter that receives the direct current and the communication signals from an input part of the communication line and applies the direct current and communication signals to an amplification device, and a second energy separation filter that receives the amplified communication signals and the direct current from the amplification device and applies the amplified communication signals and the direct current to an output part of the communication line, characterized in that the amplification device is connected in series between the first and the second energy separation filter and comprises a first amplification stage that includes a first active element for amplifying the signals of communication, and a circ a polarization unit that takes a part of the direct current, and a second amplification stage that includes a second active element for further amplification of the communication signals from the output of the first stage of the amplification and which drives the remaining part of the amplification. direct current, and a voltage limiting circuit that couples the second active element with the first amplification stage, to regulate the direct current voltage through the polarization circuit. (Machine-translation by Google Translate, not legally binding)