JPS58109329U

JPS58109329U - filter

Info

Publication number: JPS58109329U
Application number: JP618782U
Authority: JP
Inventors: 敏行田口
Original assignee: ミツミ電機株式会社
Priority date: 1982-01-20
Filing date: 1982-01-20
Publication date: 1983-07-26

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図〜第２図は従来のフィルタで第１図Ａはフィルタ
回路図、第１図Ｂは電気特性図、第２図はフィルタ回路
の構造図、第３〜第５図は本考案に係るフィルタの第１
の実施例で第３図はフィル　、夕回略図、第４図は共振
回路の等価回路図、第５図はフィルタのうち高周波数側
共振回路の構造図、第６図〜第８図は本考案に係るフィ
ルタの第２の実施例で第６図はフィルタ回路図、第７図
は共振回路の等価回路図、第８図はフィルタのうち高周
波数側共振回路の構造図である。Figures 1 to 2 are conventional filters, Figure 1A is a filter circuit diagram, Figure 1B is an electrical characteristic diagram, Figure 2 is a structural diagram of the filter circuit, and Figures 3 to 5 are based on the present invention. The first of such filters
Fig. 3 is a schematic diagram of the filter, Fig. 4 is an equivalent circuit diagram of the resonant circuit, Fig. 5 is a structural diagram of the high frequency side resonant circuit of the filter, and Figs. 6 to 8 are the main parts. In the second embodiment of the filter according to the invention, FIG. 6 is a filter circuit diagram, FIG. 7 is an equivalent circuit diagram of a resonant circuit, and FIG. 8 is a structural diagram of a high frequency side resonant circuit of the filter.

Claims

[Scope of utility model registration request]

A first coil and a second coil superimposed on the first coil are provided in the core winding portion, and the outer side of the first coil and the inner side of the second coil in contact with the first coil are connected to each other. A resonant circuit is provided between at least one of the first and second coils and a line capacitance of a fill winding forming the first and second coils in a state where a potential difference between them is large. A filter featuring.