JPS61199193U - - Google Patents
Info
- Publication number
- JPS61199193U JPS61199193U JP8375585U JP8375585U JPS61199193U JP S61199193 U JPS61199193 U JP S61199193U JP 8375585 U JP8375585 U JP 8375585U JP 8375585 U JP8375585 U JP 8375585U JP S61199193 U JPS61199193 U JP S61199193U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- switching power
- transformer
- output
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 238000009499 grossing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案に係るスイツチング電源の電気
回路図、第２図はチヨーク電流不連続時の検出回
路の検出出力を示す図、第３図は本考案に係るス
イツチング電源の別の実施例における要部の電気
回路図、第４図は同じく更に別の実施例における
要部の電気回路図、第５図は従来のスイツチング
電源の電気回路図、第６図及び第７図はその問題
点を説明するための出力電圧―電流特性図である
。
１……変圧器、１０１……第１の巻線、１０２
……第２の巻線、２……スイツチング素子、３１
，３２……出力回路、３１１，３１２，３２１，
３２２……ダイオード、３１３，３２３……チヨ
ークコイル、７……検出回路、８……負荷可変回
路、７１，７２……ダイオード、８１……第１の
トランジスタ、８２……第２のトランジスタ。
Fig. 1 is an electric circuit diagram of a switching power supply according to the present invention, Fig. 2 is a diagram showing the detection output of the detection circuit in case of discontinuous current, and Fig. 3 is an electric circuit diagram of a switching power supply according to another embodiment of the present invention. FIG. 4 is an electric circuit diagram of the main part of another embodiment, FIG. 5 is an electric circuit diagram of a conventional switching power supply, and FIGS. 6 and 7 show the problems. FIG. 3 is an output voltage-current characteristic diagram for explanation. 1...Transformer, 101...First winding, 102
...Second winding, 2...Switching element, 31
, 32...output circuit, 311, 312, 321,
322... Diode, 313, 323... Chiyoke coil, 7... Detection circuit, 8... Load variable circuit, 71, 72... Diode, 81... First transistor, 82... Second transistor.
Claims (1)
て与えられる直流入力をオン、オフするスイツチ
ング素子と、チヨークコイルを含み前記変圧器の
第２の巻線に取出されたスイツチング出力を整流
平滑する出力回路とを備えるスイツチング電源に
おいて、前記出力回路側にチヨーク電流不連続を
検出する検出回路を有することを特徴とするスイ
ツチング電源。 (2) 前記検出回路は、前記整流回路を構成する
整流ダイオードの一端側に極性を一致させて接続
したダイオード回路よりなることを特徴とする実
用新案登録請求の範囲第１項に記載のスイツチン
グ電源。[Claims for Utility Model Registration] (1) A transformer, a switching element for turning on and off a DC input applied through a first winding of the transformer, and a second winding of the transformer including a chiyoke coil. 1. A switching power supply comprising an output circuit for rectifying and smoothing a switching output taken out from the output circuit, the switching power supply having a detection circuit on the output circuit side for detecting discontinuity of current. (2) The switching power supply according to claim 1, wherein the detection circuit is a diode circuit connected to one end of a rectifier diode constituting the rectifier circuit with matching polarity. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985083755U JPH0326795Y2 (en) | 1985-06-03 | 1985-06-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985083755U JPH0326795Y2 (en) | 1985-06-03 | 1985-06-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61199193U true JPS61199193U (en) | 1986-12-12 |
| JPH0326795Y2 JPH0326795Y2 (en) | 1991-06-10 |
Family
ID=30632672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985083755U Expired JPH0326795Y2 (en) | 1985-06-03 | 1985-06-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0326795Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5687116A (en) * | 1979-12-17 | 1981-07-15 | Matsushita Electric Ind Co Ltd | Switching type power circuit |
-
1985
- 1985-06-03 JP JP1985083755U patent/JPH0326795Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5687116A (en) * | 1979-12-17 | 1981-07-15 | Matsushita Electric Ind Co Ltd | Switching type power circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0326795Y2 (en) | 1991-06-10 |