JPS626419B2 - - Google Patents
Info
- Publication number
- JPS626419B2 JPS626419B2 JP54053262A JP5326279A JPS626419B2 JP S626419 B2 JPS626419 B2 JP S626419B2 JP 54053262 A JP54053262 A JP 54053262A JP 5326279 A JP5326279 A JP 5326279A JP S626419 B2 JPS626419 B2 JP S626419B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- switching regulator
- transformer
- output switching
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000009499 grossing Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33538—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only of the forward type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Description
【発明の詳細な説明】
本発明は複数個の２次巻線を有する変換トラン
スを用いた多出力スイツチングレギユレータに関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-output switching regulator using a conversion transformer having a plurality of secondary windings.
通常、電子装置を運転するためには種々の電
圧・電力容量の電源が必要であるが、これらの
種々の電源を個々に設けることは経済的にみて大
きな負担となるため一個の電源を多出力構成とす
る方式が一般に採用されている。このような多出
力電源としては種々の方式が提案されているが、
その一つに複数個の２次巻線を有する変換トラン
スを用いた多出力スイツチングレギユレータがあ
る。この方式においては変換トランスは１個でよ
く、各出力毎に帰還回路を設けるため高い安定度
の出力を得ることができるという種々の長所を有
しているが、通常の電子装置においては、その必
要とする電源の出力の全てが高い安定度を必要と
する場合は少なく、高安定度を有する利点が充分
生かされず、むしろ、簡単な構成で準安定度の出
力をも備えた多出力電源に対する要望が高まる傾
向にある。このような多出力電源の一例として複
数の２次巻線にそれぞれ接続されたチヨークイン
プツト型整流平滑回路のコイルを磁気的に結合し
て副トランスを構成し、１個の出力電圧を安定化
制御する多出力スイツチングレギユレータがあ
る。第１図はこのような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つて、一
石式フオワードコンバータを用いた例を示してい
る。図において、Ｔは変換トランス、T1は１次
巻線、ＴMは第Ｍ（Ｍは１以上、Ｎ未満の整数で
この例では１）の２次巻線、ＴNは第Ｎ（Ｎは２
以上の整数でこの例では２）の２次巻線、ＤM Normally, power supplies with various voltages and power capacities are required to operate electronic equipment, but since providing these various power supplies individually is a heavy burden from an economic standpoint, it is necessary to use a single power supply with multiple outputs. Generally, a method is adopted in which the Various methods have been proposed for such multi-output power supplies, but
One of them is a multi-output switching regulator using a conversion transformer having a plurality of secondary windings. This method requires only one conversion transformer and has a feedback circuit for each output, so it has various advantages such as being able to obtain highly stable outputs. It is rare that all outputs of a necessary power supply require high stability, and the advantage of high stability is not fully utilized. Rather, it is recommended to use a multi-output power supply that has a simple configuration and also has metastable outputs. Demand is on the rise. As an example of such a multi-output power supply, a sub-transformer is formed by magnetically coupling the coils of a chiyo-imped rectifier and smoothing circuit connected to multiple secondary windings, respectively, to stabilize one output voltage. There is a multi-output switching regulator that controls the FIG. 1 is a circuit diagram showing an example of such a conventional multi-output switching regulator, and shows an example using a single-stone forward converter. In the figure, T is the conversion transformer, T 1 is the primary winding, T M is the Mth (M is an integer greater than or equal to 1 and less than N, in this example 1) secondary winding, and T N is the Nth (N is 2
In this example, the secondary winding of 2), D M
Claims (1)
る変換トランスの１次巻線にスイツチ素子が接続
され、前記Ｎ個の２次巻線の夫々がダイオード、
コイル及びコンデンサとからなるチヨークインプ
ツト型整流平滑回路を介して夫々の出力端子に接
続され、前記Ｎ個の２次巻線のうち第Ｎの２次巻
線に接続されたコイルを１次コイル、第Ｍ（Ｍは
１以上、Ｎ未満の整数）の２次巻線に接続された
コイルを２次コイルとして磁気的に結合し、前記
変換トランスとは別の副トランスを構成し、前記
第Ｎの２次巻線に接続された整流平滑回路の出力
を帰還し、制御回路を介して前記スイツチ素子の
オン・オフ期間を制御する多出力スイツチングレ
ギユレータにおいて、前記副トランスの１次コイ
ルを前記副トランスの２次コイルより内側にして
同一磁心に巻回したことを特徴とする多出力スイ
ツチングレギユレータ。 ２ 前記変換トランスの第Ｎの２次巻線と第Ｍの
２次巻線との巻数比は第Ｎの２次巻線に接続され
た前記副トランスのコイルと第Ｍの２次巻線に接
続された前記副トランスのコイルとの巻数比と略
等しいことを特徴とする特許請求の範囲第１項記
載の多出力スイツチングレギユレータ。 ３ 前記制御回路は電圧パルス巾変調回路である
ことを特徴とする特許請求の範囲第１項記載の多
出力スイツチングレギユレータ。 ４ 前記制御回路は電圧周波数変調回路であるこ
とを特徴とする特許請求の範囲第１項記載の多出
力スイツチングレギユレータ。 ５ 前記夫々の整流平滑回路と夫々の出力端子間
に夫々バルントランスが挿入されていることを特
徴とする特許請求の範囲第１項記載の多出力スイ
ツチングレギユレータ。 ６ 前記変換トランスはその夫々の２次巻線を挾
む如く１次巻線が分割されて巻回されていること
を特徴とする特許請求の範囲第１項記載の多出力
スイツチングレギユレータ。 ７ 前記制御回路は前記第Ｍ・Ｎの２次巻線に接
続された出力端子の少なくとも１個が過電圧状態
になつたとき、前記スイツチ素子をオフ状態にす
ることを特徴とする特許請求の範囲第１項記載の
多出力スイツチングレギユレータ。 ８ 前記制御回路は前記第Ｍ・Ｎの２次巻線の少
くとも１個が過電流状態になつたとき、前記スイ
ツチ素子のオン・オフ期間を制御することを特徴
とする特許請求の範囲第１項記載の多出力スイツ
チングレギユレータ。 ９ 前記制御回路は前記変換トランスの１次巻線
が過電流状態になつたとき、及び前記第Ｍ・Ｎの
２次巻線に接続された回路の少なくとも１個が過
電流により異常温度となつたとき、前記スイツチ
素子をオフ状態にすることを特徴とする特許請求
の範囲第１項記載の多出力スイツチングレギユレ
ータ。[Claims] A switch element is connected to a primary winding of a conversion transformer having 1 N (N is an integer of 2 or more) secondary windings, and each of the N secondary windings is a diode. ,
The coil connected to each output terminal is connected to the respective output terminal through a static input type rectifying and smoothing circuit consisting of a coil and a capacitor, and the coil connected to the Nth secondary winding among the N secondary windings is connected to the primary coil. The coil is magnetically coupled with a coil connected to the M-th (M is an integer greater than or equal to 1 and less than N) secondary winding as a secondary coil to constitute a sub-transformer different from the conversion transformer, and the In the multi-output switching regulator which feeds back the output of a rectifying and smoothing circuit connected to the Nth secondary winding and controls the on/off period of the switching element via a control circuit, one of the secondary transformers A multi-output switching regulator characterized in that the secondary coil is wound on the same magnetic core inside the secondary coil of the sub-transformer. 2. The turns ratio between the Nth secondary winding and the Mth secondary winding of the conversion transformer is the same as that of the coil of the sub-transformer connected to the Nth secondary winding and the Mth secondary winding. 2. The multi-output switching regulator according to claim 1, wherein the turn ratio is approximately equal to that of the coil of the connected sub-transformer. 3. The multi-output switching regulator according to claim 1, wherein the control circuit is a voltage pulse width modulation circuit. 4. The multi-output switching regulator according to claim 1, wherein the control circuit is a voltage frequency modulation circuit. 5. The multi-output switching regulator according to claim 1, wherein a balun transformer is inserted between each of the rectifying and smoothing circuits and each output terminal. 6. The multi-output switching regulator according to claim 1, wherein the conversion transformer has a primary winding divided and wound so as to sandwich each secondary winding. . 7. Claims characterized in that the control circuit turns off the switch element when at least one of the output terminals connected to the M and N-th secondary windings is in an overvoltage state. The multi-output switching regulator according to item 1. 8. Claim 8, characterized in that the control circuit controls the on/off period of the switch element when at least one of the M and N-th secondary windings is in an overcurrent state. The multi-output switching regulator described in item 1. 9. The control circuit operates when the primary winding of the conversion transformer enters an overcurrent state, and when at least one of the circuits connected to the M and N secondary windings reaches an abnormal temperature due to overcurrent. 2. The multi-output switching regulator according to claim 1, wherein said switching element is turned off when said switching element is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5326279A JPS55144774A (en) | 1979-04-28 | 1979-04-28 | Multi-output switching regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5326279A JPS55144774A (en) | 1979-04-28 | 1979-04-28 | Multi-output switching regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55144774A JPS55144774A (en) | 1980-11-11 |
| JPS626419B2 true JPS626419B2 (en) | 1987-02-10 |
Family
ID=12937852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5326279A Granted JPS55144774A (en) | 1979-04-28 | 1979-04-28 | Multi-output switching regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55144774A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5790725A (en) * | 1980-11-28 | 1982-06-05 | Shindengen Electric Mfg Co Ltd | Multioutput power supply device |
| JP4128549B2 (en) | 2004-01-22 | 2008-07-30 | 株式会社小糸製作所 | Vehicle lighting |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5173226A (en) * | 1974-12-21 | 1976-06-24 | Sanken Electric Co Ltd | Fukusuno shutsuryokukairoo jusuru dengensochi |
-
1979
- 1979-04-28 JP JP5326279A patent/JPS55144774A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5173226A (en) * | 1974-12-21 | 1976-06-24 | Sanken Electric Co Ltd | Fukusuno shutsuryokukairoo jusuru dengensochi |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55144774A (en) | 1980-11-11 |
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