Title:
PLANAR TRANSFORMER AND DCDC CONVERTER
Document Type and Number:
WIPO Patent Application WO/2019/013131
Kind Code:
A1
Abstract:
A planar transformer (Tp) is provided with a primary side planar air-core coil (Nap), a secondary side planar air-core coil (Nas), a primary side planar core (Cp) and a secondary side planar core (Cs). The secondary side planar air-core coil (Nas) is disposed with a gap in the direction of a winding central axis (Sp) of the primary side planar air-core coil (Nap) from the primary side planar air-core coil (Nap), and has a non-facing part (NFs) not facing the primary side planar air-core coil (Nap) in the direction of a winding central axis (Ss). The primary side planar core (Cp) and the secondary side planar core (Cs) are stacked, respectively, on the outer sides of the primary side planar air-core coil (Nap) and the secondary side planar air-core coil (Nas) in the directions of the winding central axes (Sp, Ss).
Inventors:
OKAZAKI FUMIHIRO (JP)
OGASAWARA SATOSHI (JP)
FUNATO HIROHITO (JP)
OGASAWARA SATOSHI (JP)
FUNATO HIROHITO (JP)
Application Number:
PCT/JP2018/025717
Publication Date:
January 17, 2019
Filing Date:
July 06, 2018
Export Citation:
Assignee:
CALSONIC KANSEI CORP (JP)
UNIV HOKKAIDO NAT UNIV CORP (JP)
UNIV UTSUNOMIYA (JP)
UNIV HOKKAIDO NAT UNIV CORP (JP)
UNIV UTSUNOMIYA (JP)
International Classes:
H01F38/08; H02M3/28
Foreign References:
| JP2013080881A | 2013-05-02 | |||
| JP2000243637A | 2000-09-08 | |||
| JPH05326295A | 1993-12-10 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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