JPS5981291U - Self-excited switching power supply - Google Patents
Self-excited switching power supplyInfo
- Publication number
- JPS5981291U JPS5981291U JP17768082U JP17768082U JPS5981291U JP S5981291 U JPS5981291 U JP S5981291U JP 17768082 U JP17768082 U JP 17768082U JP 17768082 U JP17768082 U JP 17768082U JP S5981291 U JPS5981291 U JP S5981291U
- Authority
- JP
- Japan
- Prior art keywords
- self
- power supply
- switching power
- switching element
- circuit
- 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
- Power Conversion In General (AREA)
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (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図は従来の自励式スイッチング電源の電気回路接続
図、第2図a〜dは同じく各部の波形図、第3図は本考
案に係る自励式スイッチング電源の電気回路接続図であ
る。
Ql・・・スイッチング素子、T1・・・変圧器、Nl
。
N2・・・巻線、N3・・・帰還巻線、3・・・起動回
路、5・・・帰還回路、9・・・ダイオード回路。FIG. 1 is an electric circuit connection diagram of a conventional self-excited switching power supply, FIGS. 2a to 2d are waveform diagrams of various parts, and FIG. 3 is an electric circuit connection diagram of a self-excited switching power supply according to the present invention. Ql...Switching element, T1...Transformer, Nl
. N2... Winding, N3... Feedback winding, 3... Starting circuit, 5... Feedback circuit, 9... Diode circuit.
Claims (1)
側に、前記変圧器に設けられた帰還巻線及びコンデンサ
を含む帰還回路を通l−で正帰還をかけて自励発振動作
をさせ、その発振出力を前記変圧器を通して取出すよう
にすると共に、前記帰還回路と前記スイッチング素子と
の接続点に起動回路を接続し、更に前記スイッチング素
子の入力側に過電流保護回路を接続した自励式スイッチ
ング電源において、前記帰還回路に並列に、前記スイッ
チング素子の入力カット・イン電圧より低い電圧で導通
ずるダイオード回路を接続したことを特徴とする自励式
スイッチング電源。 ゛Positive feedback is applied at l- from the output side of the switching element connected to the transformer to the input side through a feedback circuit including a feedback winding and a capacitor provided in the transformer to cause self-excited oscillation. A self-excited switching power supply in which an oscillation output is taken out through the transformer, a starting circuit is connected to a connection point between the feedback circuit and the switching element, and an overcurrent protection circuit is connected to the input side of the switching element. A self-excited switching power supply characterized in that a diode circuit conductive at a voltage lower than an input cut-in voltage of the switching element is connected in parallel to the feedback circuit.゛
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17768082U JPS5981291U (en) | 1982-11-24 | 1982-11-24 | Self-excited switching power supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17768082U JPS5981291U (en) | 1982-11-24 | 1982-11-24 | Self-excited switching power supply |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5981291U true JPS5981291U (en) | 1984-06-01 |
Family
ID=30385958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17768082U Pending JPS5981291U (en) | 1982-11-24 | 1982-11-24 | Self-excited switching power supply |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5981291U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0446559A (en) * | 1990-06-12 | 1992-02-17 | Matsushita Electric Ind Co Ltd | Control circuit |
-
1982
- 1982-11-24 JP JP17768082U patent/JPS5981291U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0446559A (en) * | 1990-06-12 | 1992-02-17 | Matsushita Electric Ind Co Ltd | Control circuit |
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