Title:
TRANSFORMER AND NOISE FILTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/166913
Kind Code:
A1
Abstract:
This transformer comprises: an iron core including an iron core body; a first main winding; a second main winding; a first detection winding; and a second detection winding. The iron core body has: a first through-hole and a second through-hole spaced apart in a first direction; and a first leg part positioned between the first through-hole and the second through-hole. The first main winding is wound around the first leg part and has a winding end located in the first through-hole. The second main winding is wound around the first leg part and has a winding end located in the second through-hole. A first detection winding 14 is wound around the iron core under conditions where magnetic flux generated by a common mode noise current can be cancelled, and is configured to be able to detect a normal mode noise current. The second detection winding is wound around the iron core under conditions where magnetic flux generated by the normal mode noise current can be cancelled and is configured to be able to detect the common mode noise current.
Inventors:
ISHIBASHI HIROKI (JP)
IMADA KOJI (JP)
EBISUMOTO DAIGORO (JP)
IMADA KOJI (JP)
EBISUMOTO DAIGORO (JP)
Application Number:
PCT/JP2023/003603
Publication Date:
September 07, 2023
Filing Date:
February 03, 2023
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
H01F30/10; H01F27/24; H01F27/28; H01F27/34
Foreign References:
| JPH10163046A | 1998-06-19 | |||
| US20190096571A1 | 2019-03-28 | |||
| JP2007184509A | 2007-07-19 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
Download PDF:
Previous Patent: IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM
Next Patent: JOINING INDUCTOR AND CIRCUIT
Next Patent: JOINING INDUCTOR AND CIRCUIT