JPS58139725U - Noise prevention circuit - Google Patents
Noise prevention circuitInfo
- Publication number
- JPS58139725U JPS58139725U JP3686382U JP3686382U JPS58139725U JP S58139725 U JPS58139725 U JP S58139725U JP 3686382 U JP3686382 U JP 3686382U JP 3686382 U JP3686382 U JP 3686382U JP S58139725 U JPS58139725 U JP S58139725U
- Authority
- JP
- Japan
- Prior art keywords
- prevention circuit
- noise prevention
- winding
- filter
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Filters And Equalizers (AREA)
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
第１図は従来の雑音防止回路の構成図、第２図は、本考
案の一実施例に係る雑音防止回路の構成図、第３図は第
２図中のトランスの等価回路図、第４図は第２図に示す
雑音防止回路の周波数に対 ・するノイズレベル測定図
である。
１２・・・電気装置、１５．１６・・・入力線、２３・
・・入力電源、２４・・・ＬＣフィルタ、２５・・・ト
ランス。FIG. 1 is a block diagram of a conventional noise prevention circuit, FIG. 2 is a block diagram of a noise prevention circuit according to an embodiment of the present invention, FIG. 3 is an equivalent circuit diagram of the transformer in FIG. 2, and FIG. The figure is a measurement diagram of the noise level versus frequency of the noise prevention circuit shown in Figure 2. 12...Electrical device, 15.16...Input line, 23.
...Input power supply, 24...LC filter, 25...Transformer.
Claims (1)
の入力電源側にＬＣフィルタを接続した雑音防止回路に
おいて、第１の巻線および第２の巻線を互いに磁束を打
消す関係に巻回してコアをアースしたトランスの第１と
第２の巻線を、前記ＬＣフィルタと前記電気装置間にそ
れぞれ直列に設けたことを特徴とする雑音防止回路。In a noise prevention circuit in which an LC filter is connected to the input power supply side of an electrical device that includes switching elements that turn on and off at high speed, the core is formed by winding the first winding and the second winding in a relationship that cancels magnetic flux with each other. A noise prevention circuit characterized in that first and second windings of a transformer grounded are respectively provided in series between the LC filter and the electric device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3686382U JPS58139725U (en) | 1982-03-16 | 1982-03-16 | Noise prevention circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3686382U JPS58139725U (en) | 1982-03-16 | 1982-03-16 | Noise prevention circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58139725U true JPS58139725U (en) | 1983-09-20 |
Family
ID=30048279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3686382U Pending JPS58139725U (en) | 1982-03-16 | 1982-03-16 | Noise prevention circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58139725U (en) |
-
1982
- 1982-03-16 JP JP3686382U patent/JPS58139725U/en active Pending
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