| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power line communication device capable of performing power line communication even if power from a battery pack to a load is cut off. <P>SOLUTION: A power line communication device comprises: a battery pack 1 serially connecting a plurality of battery cells 100; a communication slave unit 61 powered by the battery pack 1 as a power source; a communication master unit 8 powered by an auxiliary device power supply as a power source and for transmitting and receiving a communication signal to or from the communication slave unit via a power line; a first switch 21 for switching on and off power supplied to a load from the battery pack via the power line; and a first electrical element 22 connected to the first switch in parallel and for passing the communication signal. <P>COPYRIGHT: (C)2012,JPO&INPIT |
