JP2002374674A - Switching power source - Google Patents
Switching power sourceInfo
- Publication number
- JP2002374674A JP2002374674A JP2001178093A JP2001178093A JP2002374674A JP 2002374674 A JP2002374674 A JP 2002374674A JP 2001178093 A JP2001178093 A JP 2001178093A JP 2001178093 A JP2001178093 A JP 2001178093A JP 2002374674 A JP2002374674 A JP 2002374674A
- Authority
- JP
- Japan
- Prior art keywords
- output
- switching
- winding
- voltage
- phase
- 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
Landscapes
- Dc-Dc Converters (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、その電子回路負荷
の電力が少ない洗濯機、食器洗い機その他白物家電と呼
ばれる小電力負荷用に使用されるスイッチング電源装置
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching power supply used for a small power load called a washing machine, a dishwasher or a white goods in which electric power of an electronic circuit load is small.
【０００２】[0002]
【従来の技術】従来のリンギングチョークコンバータ方
式（以降ＲＣＣ方式と言う）スイッチング電源は、図３
に示すように、スイッチングトランス１の出力巻線１ｃ
はメイン巻線と逆相に発生する電圧を直流整流しこれを
安定化して電源出力として利用しており、この安定化出
力と異なる電圧の出力を電源出力とするときはもう一つ
の出力巻線１ｄを必要としていた。2. Description of the Related Art A conventional ringing choke converter type (hereinafter referred to as RCC type) switching power supply is shown in FIG.
As shown in the figure, the output winding 1c of the switching transformer 1
DC rectifies the voltage generated in the opposite phase to the main winding, stabilizes this, and uses it as the power output.When the output of a voltage different from this stabilized output is used as the power output, another output winding is used. 1d was needed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の構成では、出力巻線が二つ必要となり、材料
の増加、スイッチングトランスの大型化を招いていた。However, in such a conventional configuration, two output windings are required, resulting in an increase in materials and an increase in the size of the switching transformer.
【０００４】[0004]
【課題を解決するための手段】本発明は上記課題を解決
するために、ＲＣＣ方式スイッチング電源の出力巻線を
単一とし、従来利用されていなかった出力巻線のメイン
巻線と同相で発生する電圧を直流整流し、利用すること
により、上記課題を解決しょうとするものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention uses a single output winding of an RCC type switching power supply and generates the output winding in phase with the main winding of the output winding which has not been used conventionally. The above problem is intended to be solved by DC rectifying and using the applied voltage.
【０００５】[0005]
【発明の実施の形態】本発明の請求項１に記載の発明
は、スイッチングトランスと、このスイッチングトラン
スの一次側に接続しスイッチング電流を流すスイッチン
グ部と、前記スイッチングトランスの二次側に接続し出
力電流を整流する第１の整流回路と、前記第１の整流回
路の出力電圧を信号に変えて前記スイッチング部に帰還
させる電圧制御部とを備え、前記スイッチング部とスイ
ッチングトランスは、リンギングチョークコンバータ形
式の回路構成を成し、かつ、前記第２の整流回路は、前
記スイッチングトランスの出力巻線から、メイン巻線と
同相出力を整流し、電源出力として利用する構成とし、
リンギングチョークコンバータ方式スイッチング電源の
スイッチングトランスの出力巻線から、メイン巻線と同
相出力を整流し、電源出力として利用するスイッチング
電源。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a switching transformer, a switching unit connected to a primary side of the switching transformer and flowing a switching current, and a switching unit connected to a secondary side of the switching transformer. A first rectifier circuit for rectifying an output current; and a voltage control unit for converting an output voltage of the first rectifier circuit into a signal and feeding back the signal to the switching unit, wherein the switching unit and the switching transformer are a ringing choke converter. Form a circuit configuration, and the second rectifier circuit, from the output winding of the switching transformer, rectifies the in-phase output with the main winding, and uses it as a power supply output,
A switching power supply that rectifies the in-phase output from the output winding of the switching transformer of the ringing choke converter type switching power supply and the in-phase output, and uses it as the power output.
【０００６】本発明の請求項２に記載の発明は、リンギ
ングチョークコンバータ方式スイッチング電源のスイッ
チングトランスの出力巻線から、メイン巻線と同相出力
及び逆相出力をそれぞれ整流し、発生する非安定化出力
と安定化出力を出力巻線の一端を共通とすることによ
り、安定化出力電圧とこれに加算される非安定化出力の
２出力を出力とするスイッチング電源装置。According to a second aspect of the present invention, a non-stabilized state is generated in which a main winding and an in-phase output and a reverse-phase output are rectified from an output winding of a switching transformer of a ringing choke converter type switching power supply, respectively. A switching power supply device in which an output and a stabilized output share one end of an output winding to output two outputs of a stabilized output voltage and an unstabilized output added thereto.
【０００７】[0007]
【実施例】以下、本発明の第１の実施例について、図１
を参照しながら説明する。なお、従来例と同じ構成のも
のは同一符号を付して説明を省略する。FIG. 1 shows a first embodiment of the present invention.
This will be described with reference to FIG. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.
【０００８】１はスイッチングトランス，１ａはメイン
巻線、１ｂは制御巻線、１ｃは出力巻線、２はスイッチ
ング部、３電圧制御部，３ａ、３ｂはフォトカプラのフ
ォトトランジスタ、フォトダイオード、３ｃは定電圧ダ
イオードでありこの動作電圧とフォトダイオードの順方
向電圧により出力電圧が安定化する。４は第１の整流回
路であり、スイッチングトランス１の出力巻線１ｃに、
メイン巻線と逆相端子から同相端子の間にダイオード４
ａとコンデンサ４ｂの順で直列に接続されている。以降
出力巻線の端子のメイン巻線と同相電圧が発生する端子
を同相端子、メイン巻線と逆相電圧が発生する端子を逆
相端子という。定電圧ダイオード３ｃとフォトカプラ３
ｄが直列接続され、定電圧ダイオードのカソードとフォ
トダイオードのカソードがコンデンサ４ｂの両端に接続
されている。５は第２の整流回路でありダイオード５ａ
とコンデンサ５ｂの直列接続によりなっている。ダイオ
ード５ａのアノードは出力巻線１ｃの同相端子に接続さ
れ、コンデンサは逆相端子に接続されている。６は第１
の負荷でありコンデンサ４ｂの両端に接続され、７は第
２の負荷であり、コンデンサ５Ｂの両端に接続されてい
る。以上のように構成された回路においてその動作を説
明する。1 is a switching transformer, 1a is a main winding, 1b is a control winding, 1c is an output winding, 2 is a switching unit, 3 voltage control units, 3a and 3b are phototransistors of a photocoupler, a photodiode, and 3c. Is a constant voltage diode, and the output voltage is stabilized by the operating voltage and the forward voltage of the photodiode. Reference numeral 4 denotes a first rectifier circuit, which is connected to the output winding 1c of the switching transformer 1
A diode 4 between the main winding and the negative-phase terminal to the in-phase terminal
a and the capacitor 4b are connected in series in this order. Hereinafter, a terminal of the output winding that generates a common-phase voltage with the main winding is called an in-phase terminal, and a terminal that generates a negative-phase voltage with the main winding is called a negative-phase terminal. Constant voltage diode 3c and photocoupler 3
d are connected in series, and the cathode of the constant voltage diode and the cathode of the photodiode are connected to both ends of the capacitor 4b. 5 is a second rectifier circuit, which is a diode 5a
And a capacitor 5b connected in series. The anode of the diode 5a is connected to the in-phase terminal of the output winding 1c, and the capacitor is connected to the opposite-phase terminal. 6 is the first
Is connected to both ends of the capacitor 4b, and 7 is a second load, which is connected to both ends of the capacitor 5B. The operation of the circuit configured as described above will be described.
【０００９】スイッチング部２が動作を開始すると出力
巻線にメイン巻線と逆相の電圧が発生したとき、第１の
整流回路４によりコンデンサ４ｂの出力には直流電圧が
発生し、更に電圧制御部の働きによりその出力は安定化
され、定常的な動作に入る。When the switching section 2 starts operating, when a voltage having a phase opposite to that of the main winding is generated in the output winding, a DC voltage is generated at the output of the capacitor 4b by the first rectifier circuit 4, and the voltage control is further performed. The output of the unit is stabilized by the operation of the unit, and a steady operation is started.
【００１０】このとき第２の整流回路は出力巻線端子と
の接続がメイン巻線と同相の電圧が発生しているときに
正の電圧を発生し、コンデンサ５ｂに直流出力電圧が発
生する。At this time, the second rectifier circuit generates a positive voltage when the connection to the output winding terminal generates a voltage in phase with the main winding, and a DC output voltage is generated in the capacitor 5b.
【００１１】この電圧が負荷７に印加される電圧とな
り、通常この電圧は第１の整流回路により発生する直流
電圧より高い電圧となる。この電圧はスイッチング部の
入力電圧により変動する。This voltage is the voltage applied to the load 7, and is usually higher than the DC voltage generated by the first rectifier circuit. This voltage varies depending on the input voltage of the switching unit.
【００１２】次に本発明の第２の実施例について図２を
参照しながら説明する。尚従来例と同じ構成のものは同
一符号を付して説明を省略する。Next, a second embodiment of the present invention will be described with reference to FIG. Components having the same configuration as the conventional example are denoted by the same reference numerals, and description thereof is omitted.
【００１３】８は第３の整流回路でありダイオード８ａ
とコンデンサ８ｂからなっている。その接続は、出力巻
線の同相端子からコンデンサ８ｂ、ダイオード８ａのア
ノード、カソード、逆相端子の順に接続されている。以
上のような構成とすることにより出力巻線の逆相端子に
おいて、第３の整流回路出力のプラス側端子と第２の整
流回路出力のマイナス側端子とが共通となり第３の整流
回路出力電圧のマイナス側端子を基準として、安定化さ
れた第３の整流回路出力電圧に第２の整流回路出力電圧
が加算される構成となる。９は第３の負荷であり第２の
整流回路出力電圧のプラス側端子と第３の整流回路出力
電圧のマイナス側端子に接続されている。以上のような
構成においてその動作は実施例１と同様である。本実施
例においてダイオード８ａを第１の整流回路４のダイオ
ード４ａとその配置を換えることによりＲＣＣ方式の本
来の出力電圧である、メイン巻線と逆相の第３の整流回
路出力電圧と同相の出力電圧の加算電圧を出力電圧とし
て取りだすことが可能となり、出力巻線を単一巻線で逆
相による出力と、同相による出力と、逆相と同相の加算
電圧の計３出力を得る電源とすることが出来る。Reference numeral 8 denotes a third rectifier circuit, which is a diode 8a
And a capacitor 8b. The connection is made from the in-phase terminal of the output winding to the capacitor 8b, the anode of the diode 8a, the cathode, and the reverse-phase terminal in this order. With the above configuration, the positive terminal of the output of the third rectifier circuit and the negative terminal of the output of the second rectifier circuit become common at the negative phase terminal of the output winding, and the output voltage of the third rectifier circuit becomes higher. The configuration is such that the second rectifier circuit output voltage is added to the stabilized third rectifier circuit output voltage with reference to the minus terminal of. A third load 9 is connected to the positive terminal of the second rectifier circuit output voltage and the negative terminal of the third rectifier circuit output voltage. The operation of the above configuration is the same as that of the first embodiment. In this embodiment, the diode 8a is replaced by the diode 4a of the first rectifier circuit 4 and the arrangement thereof, so that the output voltage of the third rectifier circuit in phase with the main winding, which is the original output voltage of the RCC system, is in phase. It is possible to take out the added voltage of the output voltage as the output voltage, and obtain a total of three outputs of the output winding with a single winding, the output of the opposite phase, the output of the same phase, and the additional voltage of the opposite phase and the same phase. You can do it.
【００１４】[0014]
【発明の効果】以上のように本発明の請求項１に記載の
発明によれば、出力巻線を単一にしながら２出力を得る
ことが可能となるため、スイッチングトランスの材料節
約、或いは小型、軽量化を計ることが可能となる。また
本発明の請求項２記載の発明によると出力巻線を単一に
しながら３出力を得ることが可能となり、加算による高
電圧を得ることを可能としながら、スイッチングトラン
スの材料節約、小型、軽量化を計ることが可能となる。As described above, according to the first aspect of the present invention, it is possible to obtain two outputs while using a single output winding. , It is possible to reduce the weight. Further, according to the invention of claim 2 of the present invention, it is possible to obtain three outputs while using a single output winding, and it is possible to obtain a high voltage by addition, while saving the material of the switching transformer, reducing the size and weight. Can be measured.
【図１】本発明の第１の実施例の回路図FIG. 1 is a circuit diagram of a first embodiment of the present invention.
【図２】本発明の第２の実施例の回路図FIG. 2 is a circuit diagram of a second embodiment of the present invention.
【図３】従来の方式の回路図FIG. 3 is a circuit diagram of a conventional system.
１ スイッチングトランス ２ スイッチング部 ３ 電圧制御部 ４ 第１の整流回路 ５ 第２の整流回路 ６ 第１の負荷 ７ 第２の負荷 ８ 第３の整流回路 ９ 第３の負荷 DESCRIPTION OF SYMBOLS 1 Switching transformer 2 Switching part 3 Voltage control part 4 1st rectifier circuit 5 2nd rectifier circuit 6 1st load 7 2nd load 8 3rd rectifier circuit 9 3rd load
Claims (2)
ングトランスの一次側に接続しスイッチング電流を流す
スイッチング部と、前記スイッチングトランスの二次側
に接続し出力電流を整流する第１の整流回路と、前記第
１の整流回路の出力電圧を信号に変えて前記スイッチン
グ部に帰還させる電圧制御部とを備え、前記スイッチン
グ部とスイッチングトランスは、リンギングチョークコ
ンバータ形式の回路構成を成し、かつ、前記第２の整流
回路は、前記スイッチングトランスの出力巻線から、メ
イン巻線と同相出力を整流し、電源出力として利用する
スイッチング電源。A switching circuit connected to a primary side of the switching transformer and flowing a switching current; a first rectifier circuit connected to a secondary side of the switching transformer and rectifying an output current; A voltage control unit that converts an output voltage of the rectifier circuit into a signal and feeds it back to the switching unit, wherein the switching unit and the switching transformer form a circuit configuration of a ringing choke converter type; A rectifier circuit is a switching power supply that rectifies an output in phase with a main winding from an output winding of the switching transformer and uses the rectified output as a power supply output.
メイン巻線と同相出力及び逆相出力をそれぞれ整流し、
発生する非安定化出力と安定化出力を出力巻線の一端を
共通とすることにより、安定化出力電圧とこれに加算さ
れる非安定化出力の２出力を出力とする請求項１に記載
のスイッチング電源。2. An output winding of a switching transformer,
Rectify the in-phase output and out-of-phase output with the main winding, respectively.
2. The output according to claim 1, wherein the generated unstabilized output and the stabilized output have one end of the output winding in common, so that two outputs of a stabilized output voltage and an unstabilized output added thereto are output. Switching power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001178093A JP2002374674A (en) | 2001-06-13 | 2001-06-13 | Switching power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001178093A JP2002374674A (en) | 2001-06-13 | 2001-06-13 | Switching power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002374674A true JP2002374674A (en) | 2002-12-26 |
Family
ID=19018842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001178093A Pending JP2002374674A (en) | 2001-06-13 | 2001-06-13 | Switching power source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002374674A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100967862B1 (en) * | 2005-12-27 | 2010-07-05 | 신덴겐코교 가부시키가이샤 | Switching power supply circuit and surge absorbing circuit |
| JP2010528580A (en) * | 2007-05-30 | 2010-08-19 | パワー−ワン イタリー ソシエタ ペル アチオニ | Multi-output synchronous flyback converter |
| US8004204B2 (en) | 2009-02-05 | 2011-08-23 | Mitsubishi Electric Corporation | Power circuit and illumination apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5893471A (en) * | 1981-11-30 | 1983-06-03 | Wako Denki Kk | Power source |
| JPH01218357A (en) * | 1988-02-24 | 1989-08-31 | Fuji Electric Co Ltd | Voltage detection circuit |
-
2001
- 2001-06-13 JP JP2001178093A patent/JP2002374674A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5893471A (en) * | 1981-11-30 | 1983-06-03 | Wako Denki Kk | Power source |
| JPH01218357A (en) * | 1988-02-24 | 1989-08-31 | Fuji Electric Co Ltd | Voltage detection circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100967862B1 (en) * | 2005-12-27 | 2010-07-05 | 신덴겐코교 가부시키가이샤 | Switching power supply circuit and surge absorbing circuit |
| US8325496B2 (en) | 2005-12-27 | 2012-12-04 | Shindengen Electric Manufacturing Co., Ltd. | Switching power supply circuit and surge absorbing circuit |
| JP2010528580A (en) * | 2007-05-30 | 2010-08-19 | パワー−ワン イタリー ソシエタ ペル アチオニ | Multi-output synchronous flyback converter |
| US8004204B2 (en) | 2009-02-05 | 2011-08-23 | Mitsubishi Electric Corporation | Power circuit and illumination apparatus |
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