JPH0379949B2 - - Google Patents
Info
- Publication number
- JPH0379949B2 JPH0379949B2 JP57049123A JP4912382A JPH0379949B2 JP H0379949 B2 JPH0379949 B2 JP H0379949B2 JP 57049123 A JP57049123 A JP 57049123A JP 4912382 A JP4912382 A JP 4912382A JP H0379949 B2 JPH0379949 B2 JP H0379949B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- output
- circuit
- supply device
- current conversion
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 6
- 230000006641 stabilisation Effects 0.000 claims 4
- 238000011105 stabilization Methods 0.000 claims 4
- 238000009499 grossing Methods 0.000 description 9
- 230000003321 amplification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/102—Parallel operation of dc sources being switching converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Description
【発明の詳細な説明】
発明の対象
本発明は多出力電源装置に係り、特に補助電源
回路を最小限で構成することができる多出力電源
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention The present invention relates to a multi-output power supply device, and more particularly to a multi-output power supply device in which an auxiliary power supply circuit can be configured with a minimum number of auxiliary power supply circuits.
従来技術
第１図に従来技術による多出力の電源装置を示
す。本電源装置は、交流電源１の交流出力を整流
平滑して複数の回路に直流出力を供給する整流平
滑回路２と、該平滑回路２によつて整流された直
流出力を制御回路８の指示によりスイツチング動
作を行なつて高周波断続電圧を発生するスイツチ
ング回路４と、前記高周波断続電圧をトランス５
により変圧後再び整流平滑して直流出力を行なう
出力電圧整流平滑回路６と、該直流出力をフイー
ドバツクして直流出力の安定化を前記スイツチン
グ回路４に指示すると共に電源断の場合補助電源
３による電源供給を指示するフイードバツク系を
備える。前記フイードバツク系は、直流出力を入
力して出力の監視を行なう差動増幅回路９と、該
差動増幅回路９の出力に応じてパルストランス７
を介してスイツチング回路４の制御を行なう制御
回路８と、前記交流電源１から電源供給を受けて
誤差増幅回路９及び制御回路８に電源を供給する
補助電源回路３とから構成されている。Prior Art FIG. 1 shows a multi-output power supply device according to the prior art. This power supply device includes a rectifying and smoothing circuit 2 that rectifies and smoothes the AC output of an AC power source 1 and supplies DC output to a plurality of circuits, and a rectifying and smoothing circuit 2 that rectifies and smoothes the AC output of an AC power supply 1 and supplies the DC output to a plurality of circuits. A switching circuit 4 that performs a switching operation to generate a high frequency intermittent voltage, and a transformer 5 that transmits the high frequency intermittent voltage.
The output voltage rectifying and smoothing circuit 6 rectifies and smoothes the voltage again after transformation to output DC output, and the switching circuit 4 feeds back the DC output to instruct the switching circuit 4 to stabilize the DC output, and in the event of a power outage, the auxiliary power supply 3 supplies power. Equipped with a feedback system to instruct supply. The feedback system includes a differential amplifier circuit 9 which inputs a DC output and monitors the output, and a pulse transformer 7 according to the output of the differential amplifier circuit 9.
The control circuit 8 includes a control circuit 8 that controls the switching circuit 4 via the AC power supply 1, and an auxiliary power supply circuit 3 that receives power from the AC power supply 1 and supplies power to the error amplification circuit 9 and the control circuit 8.
即ち従来の多出力電源装置は、共通の交流電源
１及び整流平滑回路２とから成る入力側電源回路
部、スイツチング回路４と整流平滑回路６と制御
回路８と誤差増幅回路９と補助電源回路３とから
なる複数の出力側電源回路部とから構成されてお
り、それぞれの出力側電源回路部から所定の出力
電流が出力される様に構成されている。この様に
従来の出力側電源回路部は、スイツチング回路４
に対応して補助電源３が設けられている。その理
由は、第１図を参照すれば明らかな如く、一方の
補助電源回路３の（−）側は、出力の0Vに接続
されているのに対し、もう一方の補助電源回路３
０の（−）側は−5Vに接続されており、これを
１つの補助電源回路にしようとすると、結果とし
て出力の0Vと−5Vを短絡することになつてしま
うからである。また出力電圧が同一極性同士の場
合でも、補助電源を共有すると、必然的に出力の
0V同士を電源出力端で接続することにより、一
点アースにすることが困難となつて、給電系の共
通インピーダンスによる悪影響が発生することが
あるので出力側電源回路部毎に補助電源回路を設
けて、電源装置内では、出力側電源回路部間の絶
縁をとつておく必要があるからである。 That is, the conventional multi-output power supply device includes an input side power supply circuit section consisting of a common AC power supply 1 and a rectification and smoothing circuit 2, a switching circuit 4, a rectification and smoothing circuit 6, a control circuit 8, an error amplification circuit 9, and an auxiliary power supply circuit 3. The output power supply circuit is configured such that a predetermined output current is output from each output power supply circuit. In this way, the conventional output side power supply circuit section consists of the switching circuit 4
An auxiliary power source 3 is provided correspondingly. The reason for this is that, as is clear from FIG. 1, the (-) side of one auxiliary power supply circuit 3 is connected to the output 0V, while the other auxiliary power supply circuit 3 is connected to the 0V output.
The (-) side of 0 is connected to -5V, and if you try to use this as one auxiliary power supply circuit, you will end up shorting the outputs of 0V and -5V. Furthermore, even if the output voltages have the same polarity, sharing an auxiliary power supply will inevitably result in
By connecting 0V at the power supply output terminal, it becomes difficult to ground at a single point, and the common impedance of the power supply system may cause an adverse effect. Therefore, an auxiliary power supply circuit should be provided for each output side power supply circuit section. This is because it is necessary to maintain insulation between the output side power supply circuit sections within the power supply device.
従つて従来の多出力電源装置は、入力側電源回
路部は共通にできるものの複数の出力側電源回路
部は、それぞれ補助電源回路３が設けられ、電源
装置の大型化及びコストアツプを招くと言う問題
点を有している。この従来技術による出力側電源
回路部内の補助電源回路の占める割合は、寸法及
び価値共約10％に達するため、特にｎ個の出力側
電源回路部を有する多出力電源装置においては、
ｎ個の補助電源回路が必要となり電源装置のコス
トアツプ及び大型化を招いている。 Therefore, in the conventional multi-output power supply device, although the input side power supply circuit section can be shared, the plurality of output side power supply circuit sections are each provided with an auxiliary power supply circuit 3, which leads to an increase in the size and cost of the power supply device. It has points. The ratio of the auxiliary power supply circuit in the output power supply circuit according to the conventional technology reaches approximately 10% in terms of size and value, so especially in a multi-output power supply device having n output power supply circuits,
This requires n auxiliary power supply circuits, which increases the cost and size of the power supply device.
発明の目的
本発明の目的は、上述の従来技術による問題点
を除去することであり、補助電源回路を複数の出
力側電源回路部に共通に構成することにより、多
出力電源装置の小型化及びコストダウンを計るこ
とができる多出力電源装置を提供することであ
る。Purpose of the Invention The purpose of the present invention is to eliminate the problems caused by the above-mentioned prior art, and by configuring an auxiliary power supply circuit in common to a plurality of output side power supply circuit sections, it is possible to miniaturize the multi-output power supply device. It is an object of the present invention to provide a multi-output power supply device that can reduce costs.
発明の総括的説明
上述の目的を達成するため本発明にあつては、
出力側電源回路部の誤差検出回路と制御回路を電
気的に絶縁すると共に複数の出力側電源回路部の
制御回路を少なくとも１つの補助電源回路により
駆動することにより多出力電源装置を小型化する
ことを特徴とする。General description of the invention In order to achieve the above-mentioned object, the present invention includes the following:
To miniaturize a multi-output power supply device by electrically insulating an error detection circuit and a control circuit of an output side power supply circuit section and driving the control circuits of a plurality of output side power supply circuit sections with at least one auxiliary power supply circuit. It is characterized by
発明の実施例
以下本発明による多出力電源装置の一実施例を
第２図を用いて詳細に説明する。尚、図中第１図
と同一の符号を符したものは同一のものを示す。Embodiment of the Invention Hereinafter, an embodiment of the multi-output power supply device according to the present invention will be described in detail with reference to FIG. Note that in the figure, the same reference numerals as in FIG. 1 indicate the same parts.
本実施例における前記従来技術との主な相違点
は、誤差増幅回路９が直流出力によつて電源が供
給されていることと、誤差増幅回路９の出力がフ
オトカプラ１０を介して絶縁的に制御回路８に供
給されていること及び各出力側電源回路部が補助
電源回路３を共用する様に構成されていることで
ある。 The main difference between this embodiment and the prior art is that the error amplifier circuit 9 is supplied with power by DC output, and the output of the error amplifier circuit 9 is controlled insulatively via a photocoupler 10. The auxiliary power supply circuit 3 is supplied to the circuit 8, and each output side power supply circuit section is configured to share the auxiliary power supply circuit 3.
この様に構成された多出力電源装置は、交流電
源１の出力を、入力整流平滑回路２で整流平滑し
て直流とし、これをスイツチング回路４でスイツ
チングして高周波断続電圧をつくり、スイツチン
グトランス５で変圧した後、出力電圧整流平滑回
路６で再び整流平滑して直流出力としている。そ
して出力側電源回路部の誤差増幅回路９及び９０
は、それぞれ各々の出力側電源回路部の出力を電
源として駆動すると共に誤差に応じてフオトカプ
ラ１０により出力信号を制御回路８に送信する。
制御回路８は共通の補助電源回路３により電源が
供給され、前記フオトカプラ１０を介して絶縁的
に誤差増幅回路９からの出力を入力し、これに応
じてスイツチング回路４のスイツチング制御を行
なう。前記補助電源回路３は、前記制御回路８で
なく他の出力側電源回路部の制御回路、例えば制
御回路８０にも同時に電源供給を行なつている。 The multi-output power supply device configured in this manner rectifies and smoothes the output of an AC power supply 1 in an input rectifying and smoothing circuit 2 to convert it into DC, which is switched in a switching circuit 4 to create a high-frequency intermittent voltage, and then connected to a switching transformer. After the voltage is transformed in step 5, the output voltage is rectified and smoothed again in output voltage rectification and smoothing circuit 6 to provide a DC output. And error amplifier circuits 9 and 90 of the output side power supply circuit section
drive each output side power supply circuit section using the output as a power source, and transmits an output signal to the control circuit 8 by the photocoupler 10 according to the error.
The control circuit 8 is supplied with power by the common auxiliary power supply circuit 3, inputs the output from the error amplifier circuit 9 insulatively via the photocoupler 10, and performs switching control of the switching circuit 4 in response to this input. The auxiliary power supply circuit 3 simultaneously supplies power not only to the control circuit 8 but also to the control circuits of other output-side power supply circuit sections, such as the control circuit 80.
この様に本実施例における多出力電源装置は、
誤差増幅回路９及び９０と制御回路８及び８０を
フオトカプラ１０を介して電気的に絶縁して結合
し各出力側電源回路部を絶縁したことにより、補
助電源回路を複数の出力側電源回路で共有するこ
とができる。 In this way, the multi-output power supply device in this embodiment is
By electrically insulating and coupling the error amplifier circuits 9 and 90 and the control circuits 8 and 80 via the photocoupler 10 and insulating each output side power supply circuit section, the auxiliary power supply circuit can be shared by multiple output side power supply circuits. can do.
発明の効果
以上述べた如く本発明によれば、多出力電源装
置において複数の出力側電源回路の補助電源回路
を共通としたため、電源装置全体の小型化及びコ
ストダウンを計ることができる。特に近年におい
ては、例えば複数の直流出力を必要とする電子計
算機等の小型化のニーズにより電源装置の小型化
の要求が大きく、本発明により電源装置を小型化
できる効果は非常に大きい。Effects of the Invention As described above, according to the present invention, since the auxiliary power circuit is shared among a plurality of output side power supply circuits in a multi-output power supply device, it is possible to reduce the size and cost of the entire power supply device. Particularly in recent years, there has been a strong demand for downsizing of power supply devices due to the need for miniaturization of electronic computers and the like that require multiple DC outputs, and the present invention has a very large effect of downsizing power supply devices.
第１図は従来技術による多出力電源装置を示す
図であり、第２図は本発明の一実施例である多出
力電源装置を示す図である。
符号の説明、１……交流電源、２……入力整流
平滑回路、３……補助電源回路、４……スイツチ
ング回路、５……スイツチングトランス、６……
出力電圧整流平滑回路、７……パルストランス、
８……制御回路、９……誤差増幅回路、１０……
フオトカプラ。
FIG. 1 is a diagram showing a multi-output power supply device according to the prior art, and FIG. 2 is a diagram showing a multi-output power supply device according to an embodiment of the present invention. Explanation of symbols, 1... AC power supply, 2... Input rectifying and smoothing circuit, 3... Auxiliary power supply circuit, 4... Switching circuit, 5... Switching transformer, 6...
Output voltage rectification and smoothing circuit, 7...pulse transformer,
8...Control circuit, 9...Error amplification circuit, 10...
Photocoupler.
Claims (1)
から供給される電力を電流変換すると共に安定化
して出力する複数の電流変換安定化手段を備え、
該電流変換安定化手段は、電力供給源から供給さ
れる電力を電流変換する電流変換回路と、該電流
変換回路から出力される電力の電圧を所定の基準
電圧と比較し出力電圧の誤差を検出する誤差検出
回路と、該誤差検出回路の指示により電流変換回
路を制御する制御回路とを含む多出力電源装置に
おいて、前記電流変換安定化手段の誤差検出回路
が制御回路と電気的に絶縁されていると共に前記
複数の電流変換安定化手段の制御回路が前記電力
供給源からの電力を電源変換する少なくとも１つ
の補助電源回路により駆動されることを特徴とす
る多出力電源装置。1. A power supply source that supplies power, and a plurality of current conversion and stabilization means that converts and stabilizes the power supplied from the power supply source and outputs the current,
The current conversion stabilization means includes a current conversion circuit that converts the power supplied from the power supply source into a current, and a voltage of the power output from the current conversion circuit, which is compared with a predetermined reference voltage to detect an error in the output voltage. In the multi-output power supply device, the error detection circuit of the current conversion stabilization means is electrically insulated from the control circuit. A multi-output power supply device characterized in that the control circuit of the plurality of current conversion and stabilization means is driven by at least one auxiliary power supply circuit that converts power from the power supply source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4912382A JPS58170361A (en) | 1982-03-29 | 1982-03-29 | Multioutput power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4912382A JPS58170361A (en) | 1982-03-29 | 1982-03-29 | Multioutput power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58170361A JPS58170361A (en) | 1983-10-06 |
| JPH0379949B2 true JPH0379949B2 (en) | 1991-12-20 |
Family
ID=12822281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4912382A Granted JPS58170361A (en) | 1982-03-29 | 1982-03-29 | Multioutput power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58170361A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03198653A (en) * | 1989-12-25 | 1991-08-29 | Fuji Elelctrochem Co Ltd | Switching power supply |
| JP4777485B1 (en) * | 2011-02-14 | 2011-09-21 | 成治 武市 | Unloading device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5574284U (en) * | 1978-11-13 | 1980-05-22 |
-
1982
- 1982-03-29 JP JP4912382A patent/JPS58170361A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58170361A (en) | 1983-10-06 |
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