JPS61205290U - - Google Patents
Info
- Publication number
- JPS61205290U JPS61205290U JP8908685U JP8908685U JPS61205290U JP S61205290 U JPS61205290 U JP S61205290U JP 8908685 U JP8908685 U JP 8908685U JP 8908685 U JP8908685 U JP 8908685U JP S61205290 U JPS61205290 U JP S61205290U
- Authority
- JP
- Japan
- Prior art keywords
- series
- switching regulator
- line capacitor
- noise filter
- casing
- 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
- 239000003990 capacitor Substances 0.000 claims 5
- 238000009499 grossing Methods 0.000 claims 3
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
Description
第１図はスイツチングレギユレータの高周波雑
音の測定方法を示すブロツク図、第２図は高周波
雑音の発生を説明するスイツチングレギユレータ
の回路図、第３図Ａ，Ｂはノイズフイルターの図
、第４図は本考案のスイツチングレギユレータの
回路図、第５図は従来のスイツチングレギユレー
タの回路図、第６図は本考案と従来とのスイツチ
ングレギユレータにおける高周波雑音の比較した
図である。
１……交流電源、２……疑似電源回路網、３…
…スイツチングレギユレータ、４……負荷、５…
…電界強度計、６……交流線、７……負荷線、８
……アース線、９……交流側ノイズフイルター、
９′……直流側ノイズフイルター。
Figure 1 is a block diagram showing a method for measuring high frequency noise of a switching regulator, Figure 2 is a circuit diagram of a switching regulator explaining the generation of high frequency noise, and Figures 3A and B are diagrams of a noise filter. Figure 4 is a circuit diagram of the switching regulator of the present invention, Figure 5 is a circuit diagram of a conventional switching regulator, and Figure 6 is a high frequency diagram of the switching regulator of the present invention and the conventional one. It is a diagram comparing noise. 1...AC power supply, 2...pseudo power supply circuit network, 3...
...Switching regulator, 4...Load, 5...
...Field strength meter, 6...AC line, 7...Load line, 8
...Ground wire, 9...AC side noise filter,
9'...DC side noise filter.
Claims (1)
整流回路の出力電圧をスイツチングするスイツチ
ング素子と、このスイツチング素子と直列に１次
巻線が接続されたトランスと、このトランスの２
次巻線から得られる電圧を整流、平滑するダイオ
ード、リアクトル、コンデンサとからなる整流平
滑回路とを備えたスイツチングレギユレータにお
いて、交流側の交流入力端子と整流回路との間お
よび直流側の整流平滑回路と負荷との間にコモン
モードチヨーク、線間コンデンサ、直列接続点が
筐体アースされた直列線間コンデンサからなるノ
イズフイルターを挿入したことを特徴とするスイ
ツチングレギユレータ。 (2) 交流側の整流回路側と直流側の整流平滑回
路側とにノイズフイルタの直列接続点が筐体アー
スされた直列線間コンデンサが挿入されている実
用新案登録請求の範囲第１項記載のスイツチング
レギユレータ。 (3) 交流側のノイズフイルタはコモンモードチ
ヨークが縦続２段に接続され、その接続点間に直
列接続点が筐体アースされた直列線間コンデンサ
が挿入されている実用新案登録請求の範囲第１項
記載のスイツチングレギユレータ。[Claims for Utility Model Registration] (1) A rectifier circuit that directly rectifies AC input, a switching element that switches the output voltage of this rectifier circuit, and a transformer that has a primary winding connected in series with this switching element. , this transformer 2
In a switching regulator equipped with a rectifying and smoothing circuit consisting of a diode, a reactor, and a capacitor that rectify and smooth the voltage obtained from the next winding, there is a A switching regulator characterized in that a noise filter consisting of a common mode choke, a line capacitor, and a series line capacitor whose series connection point is grounded to the casing is inserted between a rectifying and smoothing circuit and a load. (2) Utility model registration claim 1, in which a series line capacitor with a series connection point of a noise filter connected to the casing earth is inserted between the rectifier circuit side on the AC side and the rectifier smoothing circuit side on the DC side. switching regulator. (3) The noise filter on the AC side is a utility model registration claim in which a common mode chain is connected in two stages in series, and a series line capacitor whose series connection point is grounded to the casing is inserted between the connection points. The switching regulator according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8908685U JPS61205290U (en) | 1985-06-13 | 1985-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8908685U JPS61205290U (en) | 1985-06-13 | 1985-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61205290U true JPS61205290U (en) | 1986-12-24 |
Family
ID=30642825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8908685U Pending JPS61205290U (en) | 1985-06-13 | 1985-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61205290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2019130874A1 (en) * | 2017-12-27 | 2020-11-19 | 株式会社村田製作所 | Power supply |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5810395A (en) * | 1981-07-08 | 1983-01-20 | 松下電工株式会社 | Device for firint discharge lamp |
| JPS59216468A (en) * | 1983-05-23 | 1984-12-06 | Fujitsu Ltd | Filter |
-
1985
- 1985-06-13 JP JP8908685U patent/JPS61205290U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5810395A (en) * | 1981-07-08 | 1983-01-20 | 松下電工株式会社 | Device for firint discharge lamp |
| JPS59216468A (en) * | 1983-05-23 | 1984-12-06 | Fujitsu Ltd | Filter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2019130874A1 (en) * | 2017-12-27 | 2020-11-19 | 株式会社村田製作所 | Power supply |
| US10873255B2 (en) | 2017-12-27 | 2020-12-22 | Murata Manufacturing Co., Ltd. | Power supply device |
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