JPH01131291U - - Google Patents
Info
- Publication number
- JPH01131291U JPH01131291U JP2501888U JP2501888U JPH01131291U JP H01131291 U JPH01131291 U JP H01131291U JP 2501888 U JP2501888 U JP 2501888U JP 2501888 U JP2501888 U JP 2501888U JP H01131291 U JPH01131291 U JP H01131291U
- Authority
- JP
- Japan
- Prior art keywords
- output
- switching element
- voltage
- rectifying
- smoothing
- 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
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000009499 grossing Methods 0.000 claims 2
- 238000004804 winding Methods 0.000 claims 2
- 230000002159 abnormal effect Effects 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例に係る多出力電源装
置の回路図、第２図は他の実施例に係る要部の回
路図、第３図は従来例に係る回路図である。
２……制御部、４……フオトカプラ、ＣＴ……
変流器。
FIG. 1 is a circuit diagram of a multi-output power supply device according to one embodiment of the present invention, FIG. 2 is a circuit diagram of main parts according to another embodiment, and FIG. 3 is a circuit diagram of a conventional example. 2...Control unit, 4...Photocoupler, CT...
Current transformer.
Claims (1)
換用トランスの１次巻線とスイツチング素子の直
列回路に印加し、上記スイツチング素子をオン、
オフして上記変換用トランスの２次巻線に電圧を
誘起させ、この誘起電圧を整流平滑することによ
り、第１の直流出力を得ると共に、この第１の直
流出力を降圧型安定化回路へ入力し、第１の直流
出力とは異なる第２の直流出力も得る多出力電源
装置において、前記第１の直流出力に応じて、前
記スイツチング素子のオン、オフデユーテイを制
御する制御部と、前記第２の直流出力の異常状態
信号をこの制御部に帰還する手段とを設けたこと
を特徴とする多出力電源装置。 The DC voltage obtained by rectifying and smoothing the AC input voltage is applied to the series circuit of the primary winding of the conversion transformer and the switching element, and the switching element is turned on.
By turning off and inducing a voltage in the secondary winding of the conversion transformer, rectifying and smoothing this induced voltage, a first DC output is obtained, and this first DC output is sent to a step-down stabilizing circuit. In the multi-output power supply device which also receives a second DC output different from the first DC output, the control unit controls the on/off duty of the switching element according to the first DC output; 2. A multi-output power supply device comprising means for feeding back an abnormal state signal of the DC output of No. 2 to the control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2501888U JPH01131291U (en) | 1988-02-29 | 1988-02-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2501888U JPH01131291U (en) | 1988-02-29 | 1988-02-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01131291U true JPH01131291U (en) | 1989-09-06 |
Family
ID=31245372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2501888U Pending JPH01131291U (en) | 1988-02-29 | 1988-02-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01131291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05207738A (en) * | 1991-05-16 | 1993-08-13 | Samsung Electron Co Ltd | Power unit for driving magnetron |
| JP2008182894A (en) * | 2001-07-20 | 2008-08-07 | Power Integrations Inc | Method and apparatus for low cost, current and voltage sensing circuit accompanying voltage drop |
-
1988
- 1988-02-29 JP JP2501888U patent/JPH01131291U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05207738A (en) * | 1991-05-16 | 1993-08-13 | Samsung Electron Co Ltd | Power unit for driving magnetron |
| JP2008182894A (en) * | 2001-07-20 | 2008-08-07 | Power Integrations Inc | Method and apparatus for low cost, current and voltage sensing circuit accompanying voltage drop |