JPH0244877U - - Google Patents
Info
- Publication number
- JPH0244877U JPH0244877U JP12256388U JP12256388U JPH0244877U JP H0244877 U JPH0244877 U JP H0244877U JP 12256388 U JP12256388 U JP 12256388U JP 12256388 U JP12256388 U JP 12256388U JP H0244877 U JPH0244877 U JP H0244877U
- Authority
- JP
- Japan
- Prior art keywords
- power transformer
- rectifier
- primary side
- secondary side
- noise reduction
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は、この考案の一実施例を示すコモンモ
ード・ノイズ低減回路を設けたスイツチング・レ
ギユレータの結線図、第２図は従来のコモンモー
ド・ノイズ低減回路を設けたスイツチング・レギ
ユレータの結線図である。
１……電源トランス、２……ＦＥＴ、３……制
御回路、４……整流回路、５……ライン・フイル
タ、６……コモンモード・ノイズ低減用コンデン
サ、７，８，９……二次整流出力回路、１０……
コモンモード・ノイズ低減回路。
Figure 1 is a wiring diagram of a switching regulator equipped with a common mode noise reduction circuit, which shows an embodiment of this invention, and Figure 2 is a wiring diagram of a switching regulator equipped with a conventional common mode noise reduction circuit. It is. 1... Power transformer, 2... FET, 3... Control circuit, 4... Rectifier circuit, 5... Line filter, 6... Common mode noise reduction capacitor, 7, 8, 9... Secondary Rectifier output circuit, 10...
Common mode noise reduction circuit.
Claims (1)
ＥＴと、ライン・フイルタ及びコモンモード・ノ
イズ低減用コンデンサを備えた整流回路とによつ
て構成され、前記電源トランスの二次側は、複数
の整流出力回路によつて構成されたスイツチング
・レギユレータにおいて、 前記電源トランスの一次側と前記整流回路の出
力側を接続する１線と、二次側に接続されている
複数の整流出力回路の各１線とに、夫々１個の適
当容量のコンデンサを接続し、前記二次側に接続
された複数のコンデンサの接地線をとりまとめ、
前記一次側に接続されたコンデンサの接地線とを
一括してＦＧに接続することを特徴とするコモン
モード・ノイズ低減回路。[Scope of claim for utility model registration] The primary side of the power transformer is an F with a control circuit.
ET and a rectifier circuit equipped with a line filter and a common mode noise reduction capacitor, and the secondary side of the power transformer is connected to a switching regulator configured with a plurality of rectifier output circuits. , one capacitor of an appropriate capacity is connected to one wire connecting the primary side of the power transformer and the output side of the rectifier circuit, and to each one wire of the plurality of rectifier output circuits connected to the secondary side. connect the grounding wires of the plurality of capacitors connected to the secondary side,
A common mode noise reduction circuit characterized in that the grounding wires of the capacitors connected to the primary side are collectively connected to the FG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12256388U JPH0619320Y2 (en) | 1988-09-19 | 1988-09-19 | Common mode noise reduction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12256388U JPH0619320Y2 (en) | 1988-09-19 | 1988-09-19 | Common mode noise reduction circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0244877U true JPH0244877U (en) | 1990-03-28 |
| JPH0619320Y2 JPH0619320Y2 (en) | 1994-05-18 |
Family
ID=31370612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12256388U Expired - Lifetime JPH0619320Y2 (en) | 1988-09-19 | 1988-09-19 | Common mode noise reduction circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619320Y2 (en) |
-
1988
- 1988-09-19 JP JP12256388U patent/JPH0619320Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619320Y2 (en) | 1994-05-18 |