公开(公告)号：US20200044465A1

公开(公告)日：2020-02-06

申请号：US16601909

申请日：2019-10-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTA KUROSAKI ,  SHINTARO HINO ,  MASAHIRO ARAKAWA ,  KATSUAKI HAMAMOTO

IPC: H02J7/00

Abstract: A plurality of controlling circuits control a plurality of respective shutdown switches to turn ON/OFF. A first signal system transmits, in a direction from one end of the plurality of controlling circuits to the other end of the plurality of controlling circuits, a significant signal during a normal operation and a non-significant signal when the operation needs to be stopped. The second signal system transmits, in a direction from the other end of the plurality of controlling circuits to the one end of the plurality of controlling circuits, a significant signal during the normal operation and a non-significant signal when the operation needs to be stopped. The other end of the plurality of controlling circuits transmits the non-significant signal through second signal system when a signal received through first signal system is the non-significant signal.