| 摘要 |
The invention relates to a power supply of two-wire communication line intended for transmission of signals between electronic devices, as well as for transmission of signals between electronic device and for supplying them with power. The device enables to increase the range and reliability of communication through increasing noise immunity owing to compensation of the noise signal in the communication line wires. Compensation of the noise signal is achieved in that the power supply comprising a two-pole primary power supply further comprises a secondary power supply, its poles connected to the communication line wires, as well as to eponymous poles of the primary power supply through resistors of the same value. |
