JPS59181921A - Forming method of multiplexed power source system - Google Patents
Forming method of multiplexed power source systemInfo
- Publication number
- JPS59181921A JPS59181921A JP58055807A JP5580783A JPS59181921A JP S59181921 A JPS59181921 A JP S59181921A JP 58055807 A JP58055807 A JP 58055807A JP 5580783 A JP5580783 A JP 5580783A JP S59181921 A JPS59181921 A JP S59181921A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- supply unit
- diode
- voltage
- parallel
- 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
- Direct Current Feeding And Distribution (AREA)
- Dc-Dc Converters (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（ａン 発明の技術分野
本発明は多重化電源システムの構成方法の改良に関する
。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to an improvement in a method for configuring a multiplex power supply system.
（ｂン 技術の背景
従来より電気機器における機能作動のため通常商用交流
電流（ＡＣ）より交換して所定の単数または複数の直流
電源を供給する。また大容量の直流電源を構成するに際
して標準化ないしは系列化された同一規格の低容量電源
ユニットを複数個並列接続して実現し、更に容量規格を
低減して電源システムにおける冗長度を持たせると共に
保守性の向上を計る手段が慣用されている０
（ｃ） 従来技術と問題点
第１図に従来における多重イし電源システムの構成方法
によるブロック図を示す。図においてｌａ。(b) Background of the Technology Traditionally, commercial alternating current (AC) is used to supply one or more specified DC power sources for functional operation in electrical equipment.In addition, standardization or A commonly used method is to connect multiple series of low-capacity power supply units of the same standard in parallel, and further reduce the capacity standard to provide redundancy in the power supply system and improve maintainability. (c) Prior Art and Problems Figure 1 shows a block diagram of a conventional method of configuring a multiplex power supply system.
ｌｂはスイッチング方式による足砿圧直流電源ユニット
、２は負荷、１１は演算増幅器による重圧比較部、１２
（はパルス幅制御部、１３は発振部、Ｔは主変成器、Ｑ
はスイッチングｒ２ンジスタ、ＤＩ、Ｄ２．Ｄ３．Ｄ４
．Ｄ５はダイオード、ＬはインダクタンスおよびＣ１，
Ｃ２はコンデンサである。不発明の一実施例においては
共通の構成を有する′は源ユニツ）ｌａ、ｌｂは並列運
転により商用交流電源を整流平滑して得た組直流入力電
源ＶｉｕＶｉｎを入力としてＱｌのスイッチングにより
Ｔの１次巻線に矩形波パルスを印加して得られる２次電
圧を整流平滑してＤ４を介しＶｏ ｕ ｔ より所定の
直流出力を送出して共通の負荷２に供給する。ま；’ｃ
Ｖ−ｏｕｔより送出する電圧とＤ４の順方向電圧降下（
；０７Ｖ）を直列接続されたＲ１．Ｒ２により抵抗分割
された電圧を入力されるε圧比較部１１は基循冗圧Ｖｒ
ｅｆと比較してその差翫圧をパルス幅制御部１２に印加
する。パルス幅制御部１２は発振部１３より送出される
パルスに従って差′−圧に比例するパルス幅を有する矩
形波パルスをＱｌのベースに印加して帰還制御する。従
ってこの帰還制御系は電圧比較部１１の出力がＯＫなる
ように作動し工、即ぢ出力電圧Ｖｏｕｔが比較する基準
電圧Ｖ ｒ ｅ ｆに等しくなる定電圧動作となる。Ｄ
４は複数の電源ユニットを並列接続するとき逆流防止の
ための突合せダイオードである。ダイメーーーードで突
合せた場合高い出力電圧に有する”電源ユニットから負
荷に電源を供給し、低いｉよ圧の電源ユニットは出力′
電圧をＯ■に近づけようと制御するため、低い方の電源
ユニットの出力電圧を所定の値に保持する必要がある。lb is a foot pressure DC power supply unit using a switching method, 2 is a load, 11 is a heavy pressure comparison section using an operational amplifier, 12
( is the pulse width control section, 13 is the oscillation section, T is the main transformer, Q
is the switching r2 resistor, DI, D2. D3. D4
．． D5 is a diode, L is an inductance and C1,
C2 is a capacitor. In one embodiment of the non-invention, the common configuration is the source unit) la and lb are the combined DC input power supply ViuVin obtained by rectifying and smoothing the commercial AC power supply by parallel operation, and T is 1 by switching Ql. The secondary voltage obtained by applying a rectangular wave pulse to the next winding is rectified and smoothed, and a predetermined DC output is sent out from Vout via D4 and supplied to the common load 2. M;'c
The voltage sent from V-out and the forward voltage drop of D4 (
;07V) connected in series. The ε pressure comparator 11, which receives the voltage divided by the resistance by R2, calculates the base circulation redundant voltage Vr.
The differential pressure is compared with ef and applied to the pulse width control section 12. The pulse width control section 12 performs feedback control by applying a rectangular wave pulse having a pulse width proportional to the differential pressure to the base of Ql in accordance with the pulse sent out from the oscillation section 13. Therefore, this feedback control system operates so that the output of the voltage comparator 11 becomes OK, which results in a constant voltage operation in which the output voltage Vout becomes equal to the reference voltage V.sub.ref to be compared. D
4 is a butt diode for preventing backflow when a plurality of power supply units are connected in parallel. When matched with a die, a power supply unit with a high output voltage supplies power to the load, and a power supply unit with a low voltage outputs
In order to control the voltage to approach O■, it is necessary to maintain the output voltage of the lower power supply unit at a predetermined value.
そのため抵抗Ｒ工とダイオードＤ５、抵抗Ｒ２の並列回
路より成る回路を設けＲ１，Ｒ２による分割点から電圧
検出を行うことにより、低い電圧の電源ユニットの出力
電圧を所定値以上に保持さしている。この複数の電源ユ
ニットｌａ、ｌｂによる多重化こ＼では２重化電源シス
テムにおいてその何れか一方例えば電源ユニッ）Ｉａが
故障して電源ユニット１ａを正常動作品と交換する場合
、？ｊｔ源ユニット１ｂを正常動作〔ｂ状態で電源ユニ
ッ）１ａを取脱す際過って一時的にも出力端子を短絡す
ると正常動作中の電源ユニット１ｂも過電流となって切
断動作を起すか、二次故障となって破Ｊ具する場合が存
在し、２重化電源システムの意絨がなくなって了り欠点
があった。Therefore, by providing a circuit consisting of a parallel circuit of a resistor R, a diode D5, and a resistor R2, and detecting the voltage from the dividing point by R1 and R2, the output voltage of the low voltage power supply unit is maintained at a predetermined value or higher. In this multiplexing system using multiple power supply units la and lb, what happens if one of them, for example, power supply unit Ia, fails and the power supply unit 1a is replaced with a normally operating one? If the jt power source unit 1b is operating normally (the power source unit is in state B) and the output terminal is accidentally short-circuited even temporarily when removing 1a, the power source unit 1b that is operating normally will also become overcurrent and cause a disconnection operation. There were cases where a secondary failure occurred and the J-J was damaged, and the redundant power supply system lost its purpose, which was a drawback.
（ｄ） 発明の目的
不発明の目的は上記の欠点を除去するための多重化電源
システムで何れかの電源ユニットが故障して交換すると
き過って出力端子を短絡しても正常動作中の他の電源ユ
ニットや負荷２にその影響を及ぼすことのない多重化電
源システムの構成方法を提供しようとするものである。(d) Purpose of the Invention The purpose of the invention is to eliminate the above-mentioned drawbacks in a multiplex power supply system, which is capable of maintaining normal operation even if one of the power supply units fails and is replaced by accidental short-circuiting of the output terminals. The present invention aims to provide a method for configuring a multiplex power supply system that does not affect other power supply units or loads 2.
（ｅ） 発明の構成
′午の目的は、複数の直流定電圧ユニットを並列に゛接
続して共通の負荷に電源を供給する多重化電源システム
において、
該電源ユニット毎に設ける突合せダイオードを分離して
その一端を負荷側共通回路に接続し、ダイオードの他端
を電源接続点および該ダイオードと並列に挿入する抵抗
の中間端子を定電圧動作のための電圧検出点として電源
ユニットの並列接続における着脱インタフェースとし、
正常動作の電源ユニットを停止することなく、他の故障
電源ユニットを交換することを％徴とする多重化電源シ
ステムの構成方法を提供することによって達成すること
が出来る。(e) Structure of the Invention The object of the present invention is to provide a multiplexed power supply system in which a plurality of DC constant voltage units are connected in parallel to supply power to a common load, in which a matching diode provided for each power supply unit is separated. One end of the diode is connected to the load side common circuit, the other end of the diode is used as the power supply connection point, and the intermediate terminal of the resistor inserted in parallel with the diode is used as the voltage detection point for constant voltage operation. As an interface,
This can be achieved by providing a method for configuring a multiplexed power supply system in which a malfunctioning power supply unit can be replaced without stopping a normally operating power supply unit.
（ｆ） 発明の実施例
以下図面を参照しつ＼本発明の一実施例について説明す
る。第２図は本発明の一実施例における多重化電源シス
テムの構成方法によるブロック図を示す。図において１
０ａ、１０ｂは電源ユニット、１０ａａは共通接続部、
２は負荷、１１は演算増幅器による電圧比較部、１２は
パルス幅制御部、１３は発振部、Ｔは主変成器、Ｑｌは
スイッチングトランジスタ、Ｄ１＃Ｄ２．Ｄ３．Ｄ４．
Ｄ５はダイオード、ＬはインダクタンスおよびＣＩ、Ｃ
２はコンデンサである。図の構成部材を示す符号で従来
のそれと共通の符号を有する部材は従来と共通の機能と
特性を有する。従って本発明の一実施例による構成方法
も′電気特性上は従来と共通の機能を有し、従来と同様
の２重化電源システムとして動作することに変りはない
。しかし共通接続部１０ａａ全負荷２側に固定接続とし
てＤ４のアノード側を電源供給Ｖｏｕｔｌの接続点とし
、直列接続抵抗Ｒ１，Ｒ２の中間点を電圧検出Ｖｄｅｔ
の接続点としたもので、故障した電源ユニットの取外し
または正常動作電源ユニットの取換え取付けに際し過っ
てこのＶｏ−ｕｔ、Ｖｄｅｔおよび電圧検出用／電源供
給用の両Ｇ−ＮＤを相互に過って一時的に短絡しても他
の正常動作中の電源ユニットを過電流にしたり、２次損
傷を及ぼすことのない構成が得られる。(f) Embodiment of the Invention An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows a block diagram of a method of configuring a multiplex power supply system in an embodiment of the present invention. In the figure 1
0a and 10b are power supply units, 10aa is a common connection part,
2 is a load, 11 is a voltage comparison section using an operational amplifier, 12 is a pulse width control section, 13 is an oscillation section, T is a main transformer, Ql is a switching transistor, D1#D2 . D3. D4.
D5 is a diode, L is an inductance and CI, C
2 is a capacitor. In the drawings, components having the same reference numerals as those of the conventional apparatus have functions and characteristics common to the conventional apparatus. Therefore, the configuration method according to the embodiment of the present invention also has the same functions as the conventional system in terms of electrical characteristics, and operates as a dual power supply system similar to the conventional system. However, the common connection part 10aa is fixedly connected to the full load 2 side, and the anode side of D4 is the connection point of the power supply Voutl, and the midpoint between the series connected resistors R1 and R2 is the voltage detection Vdet.
When removing a failed power supply unit or replacing and installing a normally operating power supply unit, it is possible to avoid mutual overvoltage between Vo-out, Vdet and both G-ND for voltage detection/power supply. Therefore, even if a temporary short circuit occurs, a configuration is obtained that does not cause overcurrent or secondary damage to other normally operating power supply units.
（ｇ） 発明の詳細
な説明したように不発明によれば従来多重化電源システ
ムを構成する電源ユニットの着脱で過って生じる゛電源
出力部分における短絡による正常動作中の池の電源ユニ
ットンよび負荷への障害波及の発生することのない多重
化４源システムの構成方法が得られるので有用である。(g) As described in detail, the present invention is based on the fact that the power supply unit during normal operation due to a short circuit in the power supply output section, which occurs when the power supply units constituting the multiplex power supply system are connected or detached, This is useful because it provides a method for configuring a multiplexed four-source system that does not cause failures to spread to the load.
第１図は従来における多重化を源システムの構成方法に
よるブロック図および第２図は本発明の一実施例におけ
る多重化電源システムによるブロック図である。図にお
いて１ａ＋ ｌｂ ＋ １０ａ、 ＩＱｂは電源ユニッ
）、１０ａａは共通接続部、２は負荷、Ｄ４．Ｄ５はダ
イオードおよびＲ１，Ｒ２は抵抗であるＱ
Ｚ［ｆFIG. 1 is a block diagram of a conventional method of configuring a multiplex power supply system, and FIG. 2 is a block diagram of a multiplex power supply system according to an embodiment of the present invention. In the figure, 1a+lb+10a, IQb is a power supply unit), 10aa is a common connection, 2 is a load, D4. D5 is a diode and R1 and R2 are resistors Q Z[f
Claims (1)
に電源を供給する多重化′電源システムにおいて、 該電源ユニット毎に設ける突合せダイオードを分離して
その一端を負荷側共通回路に接続し、ダイオードの他端
を電源接続点および該ダイオードと並列に挿入する抵抗
の中間端子を定電圧動作のための電圧検出点として電源
ユニットの並列接続における着脱インタフェースとし、
正常動作の電源ユニラミｆ停止することなく、他の故障
電源ユニットを交換することを特徴とする多重化電源シ
ステムの構成方法。[Claims] In a multiplexed power supply system in which a plurality of DC constant voltage units are connected in parallel to supply power to a common load, a butt diode provided for each power supply unit is separated and one end is connected to the load side. Connected to a common circuit, the other end of the diode is used as a power supply connection point, and the intermediate terminal of a resistor inserted in parallel with the diode is used as a voltage detection point for constant voltage operation, as an attachment/detachment interface in parallel connection of power supply units,
A method for configuring a multiplex power supply system, characterized in that a malfunctioning power supply unit is replaced without stopping a normally operating power supply unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58055807A JPS59181921A (en) | 1983-03-31 | 1983-03-31 | Forming method of multiplexed power source system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58055807A JPS59181921A (en) | 1983-03-31 | 1983-03-31 | Forming method of multiplexed power source system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59181921A true JPS59181921A (en) | 1984-10-16 |
Family
ID=13009188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58055807A Pending JPS59181921A (en) | 1983-03-31 | 1983-03-31 | Forming method of multiplexed power source system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59181921A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02184227A (en) * | 1988-11-30 | 1990-07-18 | Philips Gloeilampenfab:Nv | Circuit arrangement for load feed |
| JPH0578153U (en) * | 1992-03-16 | 1993-10-22 | 日本電信電話株式会社 | Power panel non-interruptive replacement device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543333B2 (en) * | 1972-02-22 | 1979-02-21 |
-
1983
- 1983-03-31 JP JP58055807A patent/JPS59181921A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543333B2 (en) * | 1972-02-22 | 1979-02-21 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02184227A (en) * | 1988-11-30 | 1990-07-18 | Philips Gloeilampenfab:Nv | Circuit arrangement for load feed |
| JPH0578153U (en) * | 1992-03-16 | 1993-10-22 | 日本電信電話株式会社 | Power panel non-interruptive replacement device |
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