Title:
POWER TRANSMISSION DEVICE AND WIRELESS POWER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP2021083141
Kind Code:
A
Abstract:
To suppress an adverse impact on surroundings due to AC magnetic fields emitted from a plurality of primary coils.SOLUTION: Power transmission devices 100a and 100b include: a primary coil L1a; a power transmission control unit 110a that controls AC current flowing through the primary coil L1a to cause the primary coil L1a to emit an AC magnetic field; a primary coil L1b; and a power transmission control unit 110b that controls AC current flowing through the primary coil L1b to cause the primary coil L1b to emit an AC magnetic field. The power transmission control unit 110a and the power transmission control unit 110b match a frequency of the AC current flowing through the primary coil L1a and a frequency of the AC current flowing through the primary coil L1b with each other by control of an overall control unit 10.SELECTED DRAWING: Figure 1
Inventors:
MIYAZAKI HIDEKI
TANAKA SHINTARO
TANAKA SHINTARO
Application Number:
JP2018046631A
Publication Date:
May 27, 2021
Filing Date:
March 14, 2018
Export Citation:
Assignee:
HITACHI ASTEMO LTD
International Classes:
H02J50/40; H02J7/00; H02J50/12; H02J50/70; H02J50/80
Attorney, Agent or Firm:
Patent Business Corporation Sunnext International Patent Office