公开(公告)号：US20250125662A1

公开(公告)日：2025-04-17

申请号：US18989421

申请日：2024-12-20

Applicant: DENSO CORPORATION

Inventor： Yusei NAKAYASHIKI ,  Masaya TAKAHASHI ,  Nobuhisa YAMAGUCHI ,  Hidetoshi YAMADA ,  Masaki KANESAKI

IPC: H02J50/40 ,  B60L53/122 ,  H02J50/12 ,  H02J50/90

Abstract: A wireless power transmission system includes a plurality of power transmission devices capable of wirelessly transmitting electric power to a power reception device; The plurality of power transmission devices is installed in an area in which a mobile object is movable and each equipped with a power transmission coil that wirelessly transmits electric power to the power reception device of the mobile object; There are provided main power lines that supply to the plurality of power transmission devices alternating current (AC) power at a first voltage for use in power transmission, and a direct current (DC) power supply unit that receives the AC power from the main power lines and outputs power at a second voltage that is lower than the first voltage and is used for control within each of the plurality of power transmission devices.