Title:
An electric power unit and a lighting installation
Document Type and Number:
Japanese Patent JP6210427
Kind Code:
B2
Abstract:
According to one embodiment, a power supply device (110, 301, 302, 303, 304) includes a substrate (10), a first inductor (20), and a second inductor (30). The substrate (10) has a first surface (10a) and a second surface (10b) on opposite side from the first surface (10a). The first inductor (20) includes a first coil (22) having a coil center axis substantially parallel to a first direction, is used for a switching circuit for controlling power supplied to a load (80), and is mounted on the first surface (10a) of the substrate (10). The second inductor (30) includes a second coil (32) having a coil center axis substantially parallel to the first direction, is electrically connected to the first inductor (20), and is mounted on the second surface (10b) of the substrate (10). As viewed in a direction orthogonal to the first surface (10a), position of the first coil (22) of the first inductor (20) does not overlap position of the second coil (32) of the second inductor (30).
Inventors:
Azumi Saki
Noriyuki Kitamura
Noriyuki Kitamura
Application Number:
JP2013167632A
Publication Date:
October 11, 2017
Filing Date:
August 12, 2013
Export Citation:
Assignee:
Toshiba Lighting & Technology Corporation
International Classes:
H02M3/155; H01L33/00; H05B37/02; H05B44/00
Domestic Patent References:
| JP2013106469A | ||||
| JP2005244456A | ||||
| JP2012054181A |
Attorney, Agent or Firm:
Masahiko Hinataji