| 摘要 |
The invention describes a device for charging an energy accumulator of one or more electrically operated vehicles (EV, EV1, EV2, EV3), having at least two charging connections (PO, PO1, PO2, PO3). Each of the charging connections (PO, PO1, P02, PO3) comprises a communication connection (POC, POC1, POC2, POC3) for exchanging data with the vehicle (EV, EV1, EV2, EV3) which is connected to the charging connection (PO, PO1, PO2, PO3). The communication connection (POC, POC1, POC2, POC3) of each of the charging connections (PO, PO1, PO2, PO3) is coupled to an assigned first communciation device (CP, CP1, CP2, CP3) which is designed on the basis of a pulse-width-modulated signal transmission for communication with a corresponding first communication device (CP, CP1, CP2, CP3V) of the vehicle (EV, EV1, EV2, EV3) which is connected to the respective charging connection (PO, PO1, PO2, PO3). In addition, a second communication device (PLC) is coupled via a coupling point (KP) to the communication connections (POC, POC1, POC2, POC3) of all the charging connections (PO, P01, P02, P03) in order to communicate with a corresponding second communication device (PLCV, PLCV1, PLCV2, PLCV3) of a vehicle (EV, EV1, EV2, EV3) on the basis of a digital data transmission. Finally, a compensation unit (COE, COE1, COE2, C0E3) is connected between the coupling point (KP) and the first communication devices (CP, CP1, CP2, CP3), which compensation unit (COE, COE1, COE2, COE3) is designed to generate a signal which is in anti-phase with respect to a signal which is transmitted by a transmitting, first communication device (CP, CP1, CP2, CP3) to the assigned communication connection (POC, POC1, POC2, POC3), and to apply said anti-phase signal to the coupling point (KP). |
