Title:
WIRELESS POWER RECEPTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/090420
Kind Code:
A1
Abstract:
A wireless power reception device (10) comprises: a first power-receiving AC circuit including a power-receiving resonance circuit (21) and a rectification circuit (31); a first power-receiving DC circuit including a smoothing circuit (41) and a load circuit (50); a second power-receiving AC circuit including a rectification circuit (32); a second power-receiving DC circuit including a smoothing circuit (42); and a connection line (700) that electrically connects the first power-receiving DC circuit and an electronic control circuit (60). The electronic control circuit (60) is provided with a ground terminal (PG). The connection line (700) electrically connects a DC reference potential (PDCL) of the first power-receiving DC circuit and the ground terminal (PG) through an impedance circuit (70). The impedance circuit (70) is stabilized by the DC potential of the ground terminal (PG) being the same potential as the DC reference potential (PDCL) of the first power-receiving DC circuit, and an impedance value is set so as to suppress a first AC current flowing from the power-receiving DC circuit to the connection line (700).
More Like This:
| JP7447463 | Contactless power supply device |
| JP6067597 | Magnetic levitation type conveying machine |
| JP2019162028 | POWER RECEPTION DEVICE |
Inventors:
NAGAI TAKAHIRO (JP)
HOSOTANI TATSUYA (JP)
HOSOTANI TATSUYA (JP)
Application Number:
PCT/JP2023/038303
Publication Date:
May 02, 2024
Filing Date:
October 24, 2023
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H02J50/12; H02J50/80
Domestic Patent References:
| WO2016135893A1 | 2016-09-01 |
Foreign References:
| JP2008086194A | 2008-04-10 | |||
| JP2006121339A | 2006-05-11 | |||
| JP2009520250A | 2009-05-21 | |||
| JP2011134049A | 2011-07-07 | |||
| US10348130B2 | 2019-07-09 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
Download PDF: