Title:
CIRCUIT DEVICE AND FILTER CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/210499
Kind Code:
A1
Abstract:
The present disclosure provides: a circuit device for which manufacturing costs are low and which is capable of realizing a filter circuit that uses a coil component that has stable mutual inductance; and a filter circuit. A circuit device (10) includes: a coil component (1); and a substrate (60). The coil component (1) includes: a first coil (L1); a second coil (L2) having an opening that overlaps the first coil (L1); a terminal (6a) connected to one end of the first coil (L1); a terminal (6b) connected to another end of the first coil (L1); a terminal (6c) connected to one end of the second coil (L2); and a terminal (6d) connected to another end of the second coil (L2). The substrate (60) includes: a power supply line (8a) electrically connected to the terminal (6a); a power supply line (8b) electrically connected to the terminal (6d); and a wiring (8c) electrically connected to the terminal (6b) and the terminal (6c). The wiring (8c) is also electrically connected to a capacitor (C1).
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Inventors:
TOUJO ATSUSHI (JP)
Application Number:
PCT/JP2023/015779
Publication Date:
November 02, 2023
Filing Date:
April 20, 2023
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H7/09; H01F19/00; H01F27/29; H05K1/18
Domestic Patent References:
| WO2019229939A1 | 2019-12-05 | |||
| WO2021044848A1 | 2021-03-11 |
Foreign References:
| JPH0661054A | 1994-03-04 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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