Title:
CHOKE COIL
Document Type and Number:
WIPO Patent Application WO/2020/202797
Kind Code:
A1
Abstract:
A choke coil provided with: a primary coil having a plurality of turns; a secondary coil having a plurality of turns; and an annular core. The choke coil comprises: a multilayer substrate including a first conductor pattern constituting the turns of the primary coil, and a second conductor pattern constituting the turns of the secondary coil; and a conductive base part on which the multilayer substrate and the core are placed. The base part is grounded, the primary coil and the base part are capacitively coupled, and the secondary coil and the base part are capacitively coupled.
Inventors:
OKAGAWA YUUSUKE (JP)
TAKAHASHI SEIJI (JP)
TAKAHASHI SEIJI (JP)
Application Number:
PCT/JP2020/004999
Publication Date:
October 08, 2020
Filing Date:
February 07, 2020
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H01F17/00; H01F17/04; H01F27/28; H01F37/00
Domestic Patent References:
| WO2016163130A1 | 2016-10-13 |
Foreign References:
| JPH0536535A | 1993-02-12 |
Attorney, Agent or Firm:
YAMANO Hiroshi et al. (JP)
Download PDF: