JPS5950588U - Isolated switching power supply - Google Patents
Isolated switching power supplyInfo
- Publication number
- JPS5950588U JPS5950588U JP14429082U JP14429082U JPS5950588U JP S5950588 U JPS5950588 U JP S5950588U JP 14429082 U JP14429082 U JP 14429082U JP 14429082 U JP14429082 U JP 14429082U JP S5950588 U JPS5950588 U JP S5950588U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- switching power
- isolated switching
- transformer
- generation 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
- 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ａ、 ｂはパルス幅変調によって安定化された
従来の絶縁形スイッチング電源装置の回路図、及びその
波形図、第２図ａ、 ｂはこの考案の一実施例を示す
絶縁形スイッチング電源装置の回路図、及びその波形図
、第３図ａ、 ｂはこの考案の他の実施例を示す制御
電圧発生回路図、及びその波形図である。
図中、Ｔはトランス、Ｑはスイッチング素子、Ｅは電源
、Ｄは整流用のダイオード、２０はＰＷＭ回路、４０．
５０は制御電圧発生回路、４１はＳＣＲ，４４は単安定
マルチバイブレータを示す。Figures 1a and 1b are circuit diagrams and waveform diagrams of a conventional isolated switching power supply stabilized by pulse width modulation, and Figures 2a and 2b are isolated switching power supplies showing an embodiment of this invention. A circuit diagram of the device and its waveform diagram. FIGS. 3a and 3b are a control voltage generation circuit diagram and its waveform diagram showing another embodiment of this invention. In the figure, T is a transformer, Q is a switching element, E is a power supply, D is a rectifier diode, 20 is a PWM circuit, 40.
50 is a control voltage generation circuit, 41 is an SCR, and 44 is a monostable multivibrator.
Claims (1)
インダクタンスによって発生するリンギング電圧持続期
間に対応するパルス幅をもった信号を出力するパルス発
生回路と、前記パルス発生回路の出力によって制御され
る半導体素子を設け、前記半導体素子によってトランス
のコイル電圧を抽出して、スイッチング素子の制御信号
を形成することを特徴とする絶縁形スイッチング電源装
置。An isolated switching power supply device includes a pulse generation circuit that outputs a signal having a pulse width corresponding to a ringing voltage duration generated by leakage inductance of a transformer, and a semiconductor element controlled by the output of the pulse generation circuit, An isolated switching power supply device characterized in that a coil voltage of a transformer is extracted by the semiconductor element to form a control signal for a switching element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14429082U JPS5950588U (en) | 1982-09-25 | 1982-09-25 | Isolated switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14429082U JPS5950588U (en) | 1982-09-25 | 1982-09-25 | Isolated switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5950588U true JPS5950588U (en) | 1984-04-03 |
Family
ID=30321805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14429082U Pending JPS5950588U (en) | 1982-09-25 | 1982-09-25 | Isolated switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950588U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549255A (en) * | 1990-06-06 | 1993-02-26 | Internatl Business Mach Corp <Ibm> | Device and method of regulating load in switching power supply |
| JP2012524401A (en) * | 2009-04-17 | 2012-10-11 | ナショナル セミコンダクタ コーポレイション | Overvoltage protection system and method in photovoltaic system |
-
1982
- 1982-09-25 JP JP14429082U patent/JPS5950588U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0549255A (en) * | 1990-06-06 | 1993-02-26 | Internatl Business Mach Corp <Ibm> | Device and method of regulating load in switching power supply |
| JP2012524401A (en) * | 2009-04-17 | 2012-10-11 | ナショナル セミコンダクタ コーポレイション | Overvoltage protection system and method in photovoltaic system |
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