COMMUNICATION SYSTEM AND COMMUNICATION DEVICE
Provided is a communication system in which a noise converted from a common mode into a differential mode and then inputted to a PLC communication device is reduced so that malfunctioning of the PLC communication device is avoidable. A communication system includes a control line 1d transmitting a c...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | Provided is a communication system in which a noise converted from a common mode into a differential mode and then inputted to a PLC communication device is reduced so that malfunctioning of the PLC communication device is avoidable. A communication system includes a control line 1d transmitting a control signal for controlling charging of a battery 10 of a vehicle 1; a reference potential line 1c connected to a reference potential of the vehicle 1; a first PLC communication device 14 connected individually to the control line 1d and the reference potential line 1c and superposing onto the control signal a differential signal having a higher frequency than the control signal so as to perform communication with an external power supply apparatus 2; an inductive element 18a which is provided in the reference potential line 1c and the inductive element 18a having impedance for a noise having a higher frequency than the control signal is higher than the impedance for the control signal; and a second inductive element 18b provided in a wire 14b connecting the first PLC communication device 14 to a lead battery 10a. |
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