JPS58170367A - Multioutput power supply circuit - Google Patents
Multioutput power supply circuitInfo
- Publication number
- JPS58170367A JPS58170367A JP5198882A JP5198882A JPS58170367A JP S58170367 A JPS58170367 A JP S58170367A JP 5198882 A JP5198882 A JP 5198882A JP 5198882 A JP5198882 A JP 5198882A JP S58170367 A JPS58170367 A JP S58170367A
- Authority
- JP
- Japan
- Prior art keywords
- output
- power supply
- circuit
- gain
- supply circuit
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 3
- 238000003079 width control Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001288 lysyl group Chemical group 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000004804 winding Methods 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
【発明の詳細な説明】
（１７発明の技術分野
本発明は多出力電源回路、特にそのクロスレギーレーシ
ョンを改善した多出力電源回路に関する。DETAILED DESCRIPTION OF THE INVENTION (17) Technical Field of the Invention The present invention relates to a multi-output power supply circuit, and particularly to a multi-output power supply circuit with improved cross regulation.
（２）技術の背景
例えば端末機用電源はｌの電源に対して多出力の構ａを
とる。端末機は一般に集積回路と機械的機構とが結合さ
れたもので、例えは集積回路には５ｖの出力を与え、ノ
９ルスモータの駆動には２４Ｖの出力を、またフロッピ
ィの回転のためには１２Ｖの出力という回路構成となっ
ており、これら多出力のうちの１つが帰還回＊１経由す
る構成となっている。(2) Technical Background For example, a power supply for a terminal device has a multi-output configuration for one power supply. A terminal device is generally a combination of an integrated circuit and a mechanical mechanism.For example, a 5V output is given to the integrated circuit, a 24V output is given to drive a USB motor, and a 24V output is given to drive a floppy disk. It has a circuit configuration with a 12V output, and one of these multiple outputs is configured to pass through a feedback circuit *1.
（３）従来技術と問題点
ここで各出力のレギエレーシロン全規格内に入れる必要
がおり、従来技術において、それは、■ 変圧器の各巻
線間のカップリングの改善■ 帰還対象となる回路の線
路電圧降下の減少の如き、主として構造、配置等の機構
的要素に依存してきた。しかし、■の点については１次
側と２次側とｔ分離することが要求されるので笑現が困
難であり、■の点上実現しようとすると必敬部品が大に
ならざるを得なくなり機構が大型になるので実際的でな
いという問題がめる。(3) Conventional technology and problems Here, it is necessary to meet all the requirements for each output, and in the conventional technology, these are: ■ Improving the coupling between each winding of the transformer ■ Line voltage of the circuit to be fed back The reduction in drop has primarily relied on mechanical factors such as structure, arrangement, etc. However, regarding point (■), it is difficult to realize because the primary side and the secondary side are required to be separated by t, and if you try to realize point (■), the required parts will have to be large. This poses a problem of being impractical because the mechanism becomes large.
（４） 発明の目的
本発明は上記従来の問題点に鑑み、構造とか配置等の機
械的嶽素に依存することなく、多出力電源回路において
、各出力のレギュレーシ盲ン會規略同に納める回路全提
供するにある。(4) Purpose of the Invention In view of the above-mentioned conventional problems, the present invention provides a multi-output power supply circuit in which the regulation of each output is approximately the same without relying on mechanical elements such as structure and arrangement. The entire circuit is on offer.
（５） 発明の構成
そしてこの目的は本発明によると、１つの出力から出力
電圧を検出しノぐルス巾制御により出力を安定化し、そ
の他の出力は変圧器のクロスレギユレーションにより概
略的安定化を行なう多出力電源回路において、帰還検出
増幅器に、直流では利得を低く、入カリゾル周波数以上
では利得を高くして各出力のレギーレーシ璽ンを保つ構
成とした回路を提供することによって達成される。(5) Structure and object of the invention According to the invention, the output voltage is detected from one output and the output is stabilized by noggle width control, and the other outputs are roughly stabilized by cross regulation of the transformer. This is achieved by providing a feedback detection amplifier with a circuit configured to have a low gain for direct current and a high gain for frequencies above the input sol frequency to maintain the leggy ratio of each output in a multi-output power supply circuit that performs .
（６）発明の実施例 以下本発明実施例を図面によって詳述する。(6) Examples of the invention Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図に従来技術による多出力電源の回路ｖｓ戚が示さ
れ、同図において、ｌは電源、２は主変圧器〜 Ｉｏｌ
＊ Ｅｏｌ ＊ Ｉｏ意＋ ＥＯ２ｌＩＯ３＋ Ｅｏ
３は図示しない第１．第２．第３の機器への出力、３は
市販の仕米型・９ルス巾制仰回路１．４はドライブ回路
、Ｅｒは基準電圧を示す。出力電圧はＥｏ３から帰還さ
し、Ｅｏｌ （！： Ｅｏｔ トｕｌロスレギュレーシ
ョンによって安定化される。FIG. 1 shows the circuit vs. relationship of a multi-output power supply according to the prior art, in which l is the power supply, 2 is the main transformer ~ Iol
* Eol * Io meaning + EO2lIO3+ Eo
3 is the first one (not shown). Second. Output to the third device, 3 is a commercially available milling type 9-Russ width control circuit 1.4 is a drive circuit, and Er is a reference voltage. The output voltage is fed back from Eo3 and stabilized by Eol (!: Eot ul loss regulation).
第２図は第１図の回路の特性を示す線図で、実線は回路
オリ得が高い場合である。このとき、ＥＯｌの安定度は
良好であるが、Ｅｏｌ とＥｏ２とは逆に安定度が思い
。FIG. 2 is a diagram showing the characteristics of the circuit shown in FIG. 1, where the solid line indicates a case where the circuit has a high originality. At this time, the stability of EOl is good, but the stability is the opposite of that of Eol and Eo2.
点線は、回路；ｖｌＩ倚會低くし、ＥＯｌの安定度を低
下させ、ＥｏｌとＥｏ２との安定度全向上させた場合を
示す。なおこの場合、Ｅｏｌの出カリノル電圧も態化す
ることが確略された。The dotted line shows the case where the circuit; vlI is lowered, the stability of EOl is lowered, and the stability of Eol and Eo2 is completely improved. In this case, it was confirmed that the output calinol voltage of Eol also changed.
本発明においては、第３図を８照すると、その（ａ）に
示す制御回路の利得周波数特性を、その（ｂ）の利得−
周波数特性線図に示されるように、直流領域では必要に
応じて低くシ、電源のりプル周波数領域では必要に応じ
て高くする。かくすることによって、！！特性の改善と
リシルの減少上同時に実現することが可能となる。In the present invention, when referring to FIG. 3, the gain frequency characteristic of the control circuit shown in (a) is changed to the gain -
As shown in the frequency characteristic diagram, it is lowered as necessary in the DC region, and raised as necessary in the power supply ripple frequency region. By doing so! ! It is possible to simultaneously improve properties and reduce lysyl.
（７）発明の効果
以上、詳細に説明した如く、本発明の多出力電算“
源回路においては、帰還回路のレギュレーション會悪く
することにより、その他の回路のレギュレ ヘーシ
ョンが改善されることｔオＵ用することにより、各出力
の要求精度を完全に活用し、出力直流精度と同時に出カ
リプル特性會も改善する効果がある。(7) Effects of the Invention As explained in detail above, in the multi-output computer source circuit of the present invention, by impairing the regulation of the feedback circuit, the regulation of other circuits can be improved. By using this, the required accuracy of each output can be fully utilized, and the output DC accuracy and output ripple characteristics can be improved at the same time.
第１図は従来の多出力電源回路の構成図、第２図は第１
図の回路の特性會示す線図、第３図（＆）は本発明の回
路の制御回路の倫成會示す図、同図（ｂ）は本発明の回
路における利得−周波数特性會示す線図である。
ｌ・・・電源、２・・・主変圧器、３・・・パルス中制
御回路、４・・・ドライブ回路。
特許出願人 富士通電装株式会社
（５）
第１図
第２図
ＥＥ−ｏ＋
＝、−（ＥＯｌ）
一一一
一一一〜 −ｍ−（Ｅ○２）
一、＋ ＋、 ＥＯｌ
−”−”−−−（Ｅｏ３）Figure 1 is a configuration diagram of a conventional multi-output power supply circuit, and Figure 2 is a diagram of a conventional multi-output power supply circuit.
Figure 3 (&) is a diagram showing the characteristics of the circuit of the present invention, Figure 3 (&) is a diagram showing the characteristics of the control circuit of the circuit of the present invention, and Figure 3 (b) is a diagram showing the gain-frequency characteristics of the circuit of the present invention. It is. l...power supply, 2...main transformer, 3...pulse control circuit, 4...drive circuit. Patent applicant Fujitsu Denso Co., Ltd. (5) Figure 1 Figure 2 EE-o+ =, - (EOl) 111111 ~ -m- (E○2) 1, + +, EOl -"-" ---(Eo3)
Claims (1)
安定化し、その他の出力は変圧器のクロスレギーレーシ
ョンにより概略的安定化全行なう多出力スイッチング電
源回路において、帰還検出増幅器に直流では利得？低く
、入カリグル周波数以上では利得ｋｍ＜して各出力のレ
ギーレーションを保つ構成としたことを特徴とする多出
力電源回路。In a multi-output switching power supply circuit that detects voltage from one output and stabilizes the output through pulse width control, and roughly stabilizes the other outputs through transformer cross regulation, what is the gain of direct current in the feedback detection amplifier? 1. A multi-output power supply circuit characterized by having a configuration in which the gain km is lower than the input caligle frequency and the regilation of each output is maintained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5198882A JPS58170367A (en) | 1982-03-30 | 1982-03-30 | Multioutput power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5198882A JPS58170367A (en) | 1982-03-30 | 1982-03-30 | Multioutput power supply circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58170367A true JPS58170367A (en) | 1983-10-06 |
| JPS6236462B2 JPS6236462B2 (en) | 1987-08-07 |
Family
ID=12902226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5198882A Granted JPS58170367A (en) | 1982-03-30 | 1982-03-30 | Multioutput power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58170367A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6273337U (en) * | 1985-10-24 | 1987-05-11 | ||
| JPH0391139A (en) * | 1989-09-01 | 1991-04-16 | Hitachi Ltd | Rotating head cylinder device |
-
1982
- 1982-03-30 JP JP5198882A patent/JPS58170367A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6236462B2 (en) | 1987-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6294904B1 (en) | Multiple frequency switching power supply and methods to operate a switching power supply | |
| US6721192B1 (en) | PWM controller regulating output voltage and output current in primary side | |
| US6125046A (en) | Switching power supply having a high efficiency starting circuit | |
| US6825726B2 (en) | Power amplifier with multiple power supplies | |
| US4849869A (en) | Switching regulator having a pulse width control system | |
| DE202019000939U1 (en) | Power doubling DC-DC converter with efficient sleep mode | |
| US20060203523A1 (en) | Method and apparatus for extending the operating range of flyforward converter | |
| JP2000324836A (en) | Multiplex mode monitor with power supply mechanism having multiplex voltage output | |
| US20220190729A1 (en) | Systems and methods for voltage compensation based on load conditions in power converters | |
| JP3091973U (en) | Active backup power supply having power factor compensation function and power output adjustment function | |
| JP4265112B2 (en) | Switching converter | |
| JPS6236462B2 (en) | ||
| JPS62123695A (en) | Electric source device | |
| US20080042631A1 (en) | Switching power supply | |
| JPS62114469A (en) | Power unit | |
| JPS63501400A (en) | flyback power supply | |
| JPS58107267A (en) | Electric power source for welding | |
| JPS58212366A (en) | Switching circuit | |
| JPS63178764A (en) | Power supply device | |
| JPH1052041A (en) | Power supply circuit | |
| JPH08237937A (en) | Constant current power supply | |
| JPS58116071A (en) | High-frequency switching direct current power supply | |
| JP2692137B2 (en) | Switching power supply | |
| JPS5941175A (en) | Controller for frequency converter | |
| JPH09163746A (en) | Power supply circuit |