JPH0350982U - - Google Patents
Info
- Publication number
- JPH0350982U JPH0350982U JP11271089U JP11271089U JPH0350982U JP H0350982 U JPH0350982 U JP H0350982U JP 11271089 U JP11271089 U JP 11271089U JP 11271089 U JP11271089 U JP 11271089U JP H0350982 U JPH0350982 U JP H0350982U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- circuit
- conversion transformer
- series circuit
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000009499 grossing Methods 0.000 claims description 4
- 230000001629 suppression Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図はこの発明の一実施例を示す回路図、第
２図は実施例と従来例とを比較して示す各部の波
形図、第３図は従来の多出力スイツチングレギユ
レータの一例を示す回路図である。
１……交流電源、３……整流器、４……ノイズ
抑制用コンデンサ、５……平滑コンデンサ、６…
…第１の出力回路、７……第２の出力回路、Ｑ１
，Ｑ２……第１、第２のトランジスタ（第１、第
２のスイツチング素子）、Ｔ１，Ｔ２……第１、
第２の変換トランス、ＮＰ１，ＮＰ２……１次巻
線、ＮＳ１，ＮＳ２……２次巻線、ＮＲ１……リ
セツト巻線、Ｄ５……ダイオード（フライバツク
電力整流用）。
Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a waveform diagram of each part showing a comparison between the embodiment and a conventional example, and Fig. 3 is an example of a conventional multi-output switching regulator. FIG. 1... AC power supply, 3... Rectifier, 4... Noise suppression capacitor, 5... Smoothing capacitor, 6...
...First output circuit, 7...Second output circuit, Q 1
, Q 2 ... first and second transistors (first and second switching elements), T 1 , T 2 ... first,
Second conversion transformer, NP 1 , NP 2 ... primary winding, NS 1 , NS 2 ... secondary winding, NR 1 ... reset winding, D 5 ... diode (for flyback power rectification).
Claims (1)
１の変換トランスの１次巻線と第１のスイツチン
グ素子との直列回路と、 その直列回路に並列に接続された、前記第１の
スイツチング素子のスイツチング周波数に対応す
る比較的小容量のノイズ抑制用コンデンサと、 前記第１の変換トランスの２次巻線に誘起され
たフオーワード電力を平滑整流して出力する第１
の出力回路と、 その第１の出力回路の第１出力電圧に応じて前
記第１のスイツチング素子のデユーテイ比を変え
ることにより、前記第１出力電圧を安定化する第
１のフイードバツク回路と、 前記第１の変換トランスに設けたリセツト巻線
に誘起されたフライバツク電力を平滑整流するた
めの、ダイオードと前記リセツト巻線と中容量の
平滑コンデンサとからなる直列回路と、 その直列回路の前記平滑コンデンサに並列に接
続された、第２の変換トランスの１次巻線と第２
のスイツチング素子との直列回路と、 前記第２の変換トランスの２次巻線に誘起され
た電力を平滑整流して出力する第２の出力回路と
、 その第２の出力回路の第２出力電圧に応じて前
記第２のスイツチング素子のデユーテイ比を変え
ることにより、前記第２出力電圧を安定化する第
２のフイードバツク回路とから構成されたことを
特徴とする多出力スイツチングレギユレータ。[Claims for Utility Model Registration] A series circuit consisting of a rectifier connected to an AC power source, and a primary winding of a first conversion transformer and a first switching element connected between the DC output terminals of the rectifier. , a relatively small capacitance noise suppression capacitor corresponding to the switching frequency of the first switching element connected in parallel to the series circuit, and a forward noise induced in the secondary winding of the first conversion transformer. The first part smoothes and rectifies the power and outputs it.
a first feedback circuit that stabilizes the first output voltage by changing the duty ratio of the first switching element according to the first output voltage of the first output circuit; A series circuit consisting of a diode, the reset winding, and a medium capacity smoothing capacitor for smoothing and rectifying the flyback power induced in the reset winding provided in the first conversion transformer, and the smoothing capacitor in the series circuit. The primary winding of the second conversion transformer and the second
a series circuit with a switching element; a second output circuit that smooths and rectifies the power induced in the secondary winding of the second conversion transformer and outputs the same; and a second output voltage of the second output circuit. and a second feedback circuit that stabilizes the second output voltage by changing the duty ratio of the second switching element according to the switching element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11271089U JPH0729745Y2 (en) | 1989-09-26 | 1989-09-26 | Multi-output switching regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11271089U JPH0729745Y2 (en) | 1989-09-26 | 1989-09-26 | Multi-output switching regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0350982U true JPH0350982U (en) | 1991-05-17 |
| JPH0729745Y2 JPH0729745Y2 (en) | 1995-07-05 |
Family
ID=31661154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11271089U Expired - Lifetime JPH0729745Y2 (en) | 1989-09-26 | 1989-09-26 | Multi-output switching regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729745Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002080345A1 (en) * | 1999-09-21 | 2002-10-10 | Smk Corporation | Switching power supply using partial switching |
| JP2006138085A (en) * | 2004-11-10 | 2006-06-01 | Tohpe Corp | Protrusion unit for being laid to form protrusion for guiding visually impaired person |
-
1989
- 1989-09-26 JP JP11271089U patent/JPH0729745Y2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002080345A1 (en) * | 1999-09-21 | 2002-10-10 | Smk Corporation | Switching power supply using partial switching |
| GB2381673A (en) * | 1999-09-21 | 2003-05-07 | Smk Kk | Switching power supply using partial switching |
| GB2381673B (en) * | 1999-09-21 | 2005-01-05 | Smk Kk | Switching power supply using partial switching |
| JP2006138085A (en) * | 2004-11-10 | 2006-06-01 | Tohpe Corp | Protrusion unit for being laid to form protrusion for guiding visually impaired person |
| JP4486479B2 (en) * | 2004-11-10 | 2010-06-23 | 株式会社トウペ | Projection unit that is laid to form a projection for guiding the visually impaired |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729745Y2 (en) | 1995-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |