JPH03120688U - - Google Patents
Info
- Publication number
- JPH03120688U JPH03120688U JP2915990U JP2915990U JPH03120688U JP H03120688 U JPH03120688 U JP H03120688U JP 2915990 U JP2915990 U JP 2915990U JP 2915990 U JP2915990 U JP 2915990U JP H03120688 U JPH03120688 U JP H03120688U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- winding
- control circuit
- control
- 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
- 238000004804 winding Methods 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims 5
- 230000007423 decrease Effects 0.000 claims 1
- 230000001934 delay Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案に係るスイツチングレギユレー
タの一実施例を示す回路図、第２図は第１図のス
イツチングレギユレータの動作を説明する波形図
、第３図は従来のスイツチングレギユレータを示
す回路図、第４図は第３図のスイツチングレギユ
レータの動作を示す波形図である。
１……スイツチング素子、３……制御回路、５
……電源供給源（商用交流電源）、７……整流回
路、９……遅延回路、Ｃ１〜Ｃ４……コンデンサ
、Ｄ１〜Ｄ４……ダイオード、Ｐ１……一次側巻
線、Ｐ２……制御巻線、Ｐ３……出力巻線、Ｑ…
…トランジスタ、Ｒ……抵抗、Ｔ……トランス。
Fig. 1 is a circuit diagram showing an embodiment of the switching regulator according to the present invention, Fig. 2 is a waveform diagram explaining the operation of the switching regulator of Fig. 1, and Fig. 3 is a circuit diagram of a conventional switch. FIG. 4 is a circuit diagram showing the switching regulator, and FIG. 4 is a waveform diagram showing the operation of the switching regulator shown in FIG. 1... Switching element, 3... Control circuit, 5
... Power supply source (commercial AC power supply), 7 ... Rectifier circuit, 9 ... Delay circuit, C1 to C4 ... Capacitor, D1 to D4 ... Diode, P1 ... Primary winding, P2 ... Control winding Wire, P3... Output winding, Q...
...transistor, R...resistor, T...transformer.
Claims (1)
イバツク電圧を出力する二次側の出力巻線および
制御巻線を有するトランスと、 電源供給源から前記一次側巻線に流れる電源電
流をスイツチングする無接点スイツチング素子と
、 このスイツチング素子をスイツチング制御する
発振信号を出力する制御回路であつて、起動時に
前記電源供給源からの駆動電圧によつて発振開始
して前記発振信号を出力し、前記スイツチング素
子のスイツチング動作時には前記制御巻線に誘起
されるフライバツク電圧によつてこの電圧を一定
に維持するような前記発振信号を出力する制御回
路と、 を具備し、前記スイツチング素子のスイツチング
動作によつて前記出力巻線から出力電圧を得るス
イツチングレギユレータにおいて、 前記制御巻線のフライバツク電圧レベルが低下
して前記制御回路の発振が停止したとき前記電源
供給源から前記制御回路への駆動電圧の供給を遅
らせる遅延回路を有することを特徴とするスイツ
チングレギユレータ。[Claims for Utility Model Registration] A transformer having a primary winding, and a secondary output winding and a control winding that output flyback voltages for output and control; a non-contact switching element that switches the power supply current flowing through the switching element; and a control circuit that outputs an oscillation signal that switches and controls the switching element, and the control circuit starts oscillation by a drive voltage from the power supply source at startup to generate the oscillation. a control circuit that outputs a signal and outputs the oscillation signal such that the voltage is maintained constant by a flyback voltage induced in the control winding during a switching operation of the switching element; In a switching regulator that obtains an output voltage from the output winding by a switching operation of an element, when the flyback voltage level of the control winding decreases and the oscillation of the control circuit stops, the voltage from the power supply source is A switching regulator comprising a delay circuit that delays the supply of drive voltage to a control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2915990U JPH0747992Y2 (en) | 1990-03-23 | 1990-03-23 | Switching regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2915990U JPH0747992Y2 (en) | 1990-03-23 | 1990-03-23 | Switching regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03120688U true JPH03120688U (en) | 1991-12-11 |
| JPH0747992Y2 JPH0747992Y2 (en) | 1995-11-01 |
Family
ID=31531934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2915990U Expired - Lifetime JPH0747992Y2 (en) | 1990-03-23 | 1990-03-23 | Switching regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0747992Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006203981A (en) * | 2005-01-18 | 2006-08-03 | Fuji Electric Device Technology Co Ltd | Intermittent protection circuit for power supply device |
| WO2023157672A1 (en) * | 2022-02-16 | 2023-08-24 | パナソニックＩｐマネジメント株式会社 | Power generation device |
-
1990
- 1990-03-23 JP JP2915990U patent/JPH0747992Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006203981A (en) * | 2005-01-18 | 2006-08-03 | Fuji Electric Device Technology Co Ltd | Intermittent protection circuit for power supply device |
| JP4677790B2 (en) * | 2005-01-18 | 2011-04-27 | 富士電機システムズ株式会社 | Switching power supply intermittent protection circuit |
| WO2023157672A1 (en) * | 2022-02-16 | 2023-08-24 | パナソニックＩｐマネジメント株式会社 | Power generation device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0747992Y2 (en) | 1995-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01166484U (en) | ||
| JPH03120688U (en) | ||
| JP2938241B2 (en) | High voltage power circuit | |
| JP2680123B2 (en) | Switching regulator power supply circuit | |
| JP2536401Y2 (en) | Switching power supply | |
| JPS6367430B2 (en) | ||
| JPH0333182Y2 (en) | ||
| JPS61141991U (en) | ||
| JPH025979U (en) | ||
| JPH0348383U (en) | ||
| JPH01131291U (en) | ||
| JPH0311341U (en) | ||
| JPH0182681U (en) | ||
| JPS6155488U (en) | ||
| JPH01114370A (en) | Switching power source | |
| JPS63160088U (en) | ||
| JPH0360878U (en) | ||
| JPH03127488U (en) | ||
| JPS61104787U (en) | ||
| JPS6356413U (en) | ||
| JPH02129190U (en) | ||
| JPH0350933U (en) | ||
| JPS6229787U (en) | ||
| JPS62104585U (en) | ||
| JPH03111182U (en) |