Patent ID: 9577709
Date: 2017-02-21
CPC Classifications: B60L,H01F,H02J,H04B,Y02T,Y04S

Claim:
1. A communication system including an output circuit provided in a power feeding device for feeding power to a vehicle and outputting a rectangular wave signal of a predetermined frequency, and an input circuit provided in the vehicle and connected with the output circuit through a plurality of signal lines, the rectangular wave signal output by the output circuit being input to the input circuit through the plurality of signal lines, the communication system performing communication between the vehicle and the power feeding device by transmitting both a communication signal and the rectangular wave signal on the signal lines, the communication system comprising: a first communication unit provided in the vehicle and performing transmission and reception of a communication signal, different from the rectangular wave signal, through a first voltage transformer interposed in a midway of the signal line; a second communication unit provided in the power feeding device and performing transmission and reception of a communication signal, different from the rectangular wave signal, through a second voltage transformer interposed in a midway of the signal line; and a first low pass filter interposed between the input circuit and the first voltage transformer to allow the rectangular wave signal to pass through as a rectangular wave signal and not to allow the communication signal to pass through.