JPS63100991U - - Google Patents
Info
- Publication number
- JPS63100991U JPS63100991U JP19312186U JP19312186U JPS63100991U JP S63100991 U JPS63100991 U JP S63100991U JP 19312186 U JP19312186 U JP 19312186U JP 19312186 U JP19312186 U JP 19312186U JP S63100991 U JPS63100991 U JP S63100991U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- output
- transformer
- power supply
- supply device
- 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
- 238000004804 winding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の第１の実施例を示す構成図、
第２図は第１図の実施例の動作説明図、第３図は
本考案の第２の実施例を示す構成図、第４図は第
３図の実施例の動作説明図、第５図は本考案の第
３の実施例を示す構成図、第６図は従来のスイツ
チング電源装置の回路図、第７図は従来の装置の
負荷と出力電圧の関係を示す図である。
１……入力端子、２……スイツチング素子、３
……トランス、４……制御回路、５，６……整流
平滑回路、７……電圧検出部、９１，９２……出
力端子、１０……ブリーダ電流供給回路、１１，
１２，１３……抵抗、１４……トランジスタ、１
５……コンデンサ、２０……シリーズレギユレー
タ、３１，３２，３３……巻線。
FIG. 1 is a configuration diagram showing a first embodiment of the present invention;
2 is an explanatory diagram of the operation of the embodiment shown in FIG. 1, FIG. 3 is a block diagram showing the second embodiment of the present invention, FIG. 4 is an explanatory diagram of the operation of the embodiment of FIG. 3, and FIG. 6 is a block diagram showing a third embodiment of the present invention, FIG. 6 is a circuit diagram of a conventional switching power supply device, and FIG. 7 is a diagram showing the relationship between load and output voltage of the conventional device. 1...Input terminal, 2...Switching element, 3
...Transformer, 4...Control circuit, 5, 6...Rectifier smoothing circuit, 7...Voltage detection section, 9 1 , 9 2 ...Output terminal, 10...Bleeder current supply circuit, 11,
12, 13...Resistor, 14...Transistor, 1
5...Capacitor, 20...Series regulator, 31, 32, 33...Winding.
Claims (1)
のスイツチング素子と、トランスの２次側の複数
の巻線に対応して得られる複数の出力のうち１つ
の出力の電圧を検出して第１のスイツチング素子
をオン／オフ制御する制御手段とを備えたスイツ
チング電源装置において、 前記１つの出力と別の出力との間に設けられ、
これらの出力間の電位差が予め設定された値以上
になると導通する第２のスイツチング素子を具備
することを特徴とするスイツチング電源装置。[Claims for utility model registration] The first coil connected in series to the primary winding of the transformer
a switching element, and a control means for controlling on/off of the first switching element by detecting the voltage of one output among the plurality of outputs obtained corresponding to the plurality of windings on the secondary side of the transformer. A switching power supply device comprising: provided between the one output and another output;
A switching power supply device comprising a second switching element that becomes conductive when a potential difference between these outputs exceeds a preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19312186U JPS63100991U (en) | 1986-12-17 | 1986-12-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19312186U JPS63100991U (en) | 1986-12-17 | 1986-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63100991U true JPS63100991U (en) | 1988-06-30 |
Family
ID=31148849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19312186U Pending JPS63100991U (en) | 1986-12-17 | 1986-12-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63100991U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194567A (en) * | 1987-02-03 | 1988-08-11 | Tdk Corp | Two-output dc-dc converter |
| JP2002272108A (en) * | 2001-03-09 | 2002-09-20 | Nichicon Corp | Switching power supply |
| JP2007159304A (en) * | 2005-12-07 | 2007-06-21 | Matsushita Electric Ind Co Ltd | Power supply |
| WO2009037756A1 (en) * | 2007-09-19 | 2009-03-26 | Fujitsu Limited | Power unit and electronic device |
| JP2012152070A (en) * | 2011-01-21 | 2012-08-09 | Shindengen Electric Mfg Co Ltd | Control circuit |
-
1986
- 1986-12-17 JP JP19312186U patent/JPS63100991U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63194567A (en) * | 1987-02-03 | 1988-08-11 | Tdk Corp | Two-output dc-dc converter |
| JP2002272108A (en) * | 2001-03-09 | 2002-09-20 | Nichicon Corp | Switching power supply |
| JP2007159304A (en) * | 2005-12-07 | 2007-06-21 | Matsushita Electric Ind Co Ltd | Power supply |
| WO2009037756A1 (en) * | 2007-09-19 | 2009-03-26 | Fujitsu Limited | Power unit and electronic device |
| JP2012152070A (en) * | 2011-01-21 | 2012-08-09 | Shindengen Electric Mfg Co Ltd | Control circuit |