JPH0161886U - - Google Patents
Info
- Publication number
- JPH0161886U JPH0161886U JP15683487U JP15683487U JPH0161886U JP H0161886 U JPH0161886 U JP H0161886U JP 15683487 U JP15683487 U JP 15683487U JP 15683487 U JP15683487 U JP 15683487U JP H0161886 U JPH0161886 U JP H0161886U
- Authority
- JP
- Japan
- Prior art keywords
- input voltage
- switching
- winding
- transformer
- switching element
- 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 7
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案のスイツチングレギユレータの
一実施例の電気回路図、第２図は第１図の一部の
等価回路図、第３図は第１図のタイミングチヤー
ト、第４図は従来のスイツチングレギユレータの
電気回路図、第５図は第４図のタイミングチヤー
トである。
ＡＣ……交流電源、Ｑ１……スイツチング素子
、Ｔ……トランス、ＮＰ……１次巻線、ＮＤ……
帰還巻線、ＤＣ……ドライブ回路、Ｃ２……コン
デンサ、ＡＤ……入力電圧検出回路、ＤＳ……コ
ンデンサ。
Figure 1 is an electrical circuit diagram of one embodiment of the switching regulator of the present invention, Figure 2 is an equivalent circuit diagram of a part of Figure 1, Figure 3 is a timing chart of Figure 1, and Figure 4. is an electric circuit diagram of a conventional switching regulator, and FIG. 5 is a timing chart of FIG. 4. AC...alternating current power supply, Q1...switching element, T...transformer, NP...primary winding, ND...
Feedback winding, DC...drive circuit, C2...capacitor, AD...input voltage detection circuit, DS...capacitor.
Claims (1)
ツチング素子を介してトランスの１次巻線に供給
され、且つトランスの１次側に設けられた帰還巻
線からドライブ回路を介して前記スイツチング素
子にドライブ電流を流す構成とし、前記帰還巻線
の逆起電力に伴う発生電圧の反転により前記スイ
ツチング素子をオン・オフさせて前記トランスの
１次巻線に断続的に直流電力を供給するスイツチ
ングレギユレータにおいて、前記交流電源からの
入力電圧の基準値に対する大小を判別する入力電
圧検出回路と、この入力電圧検出回路が基準値よ
り小さい入力電圧を検出した時にオンされるスイ
ツチ素子を介して前記帰還巻線の負電圧による電
流を前記ドライブ回路のコンデンサに充電させる
ドライブ切換回路とを備えてなるスイツチングレ
ギユレータ。 DC power obtained by rectifying the AC power supply is supplied to the primary winding of the transformer via the switching element in the on state, and is then driven from the feedback winding provided on the primary side of the transformer to the switching element via the drive circuit. A switching leg that is configured to allow current to flow and intermittently supplies DC power to the primary winding of the transformer by turning on and off the switching element by reversing the voltage generated due to the back electromotive force of the feedback winding. In the controller, the feedback is transmitted through an input voltage detection circuit that determines whether the input voltage from the AC power source is large or small relative to a reference value, and a switch element that is turned on when this input voltage detection circuit detects an input voltage smaller than the reference value. A switching regulator comprising a drive switching circuit that charges a capacitor of the drive circuit with a current due to a negative voltage of a winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987156834U JPH069588Y2 (en) | 1987-10-14 | 1987-10-14 | Switching regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987156834U JPH069588Y2 (en) | 1987-10-14 | 1987-10-14 | Switching regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0161886U true JPH0161886U (en) | 1989-04-20 |
| JPH069588Y2 JPH069588Y2 (en) | 1994-03-09 |
Family
ID=31435731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987156834U Expired - Lifetime JPH069588Y2 (en) | 1987-10-14 | 1987-10-14 | Switching regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069588Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5918866U (en) * | 1982-07-29 | 1984-02-04 | ダイワ精工株式会社 | Clutch return device for double bearing type fishing reel |
-
1987
- 1987-10-14 JP JP1987156834U patent/JPH069588Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5918866U (en) * | 1982-07-29 | 1984-02-04 | ダイワ精工株式会社 | Clutch return device for double bearing type fishing reel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH069588Y2 (en) | 1994-03-09 |