JPS62282314A - Redundant power unit - Google Patents
Redundant power unitInfo
- Publication number
- JPS62282314A JPS62282314A JP12542386A JP12542386A JPS62282314A JP S62282314 A JPS62282314 A JP S62282314A JP 12542386 A JP12542386 A JP 12542386A JP 12542386 A JP12542386 A JP 12542386A JP S62282314 A JPS62282314 A JP S62282314A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- state
- overload protection
- load
- current
- 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
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 101100102849 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) VTH1 gene Proteins 0.000 abstract 1
- 101150088150 VTH2 gene Proteins 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Control Of Voltage And Current In General (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
（産業上の利用分野）
：本、発明は、冗長、化された電源から負荷に電力を供
給する冗長化！源装置に関し、更に詳しくは、各電源装
置が過負荷保護を行なう回路を備えた冗長化電源装置に
関する。[Detailed Description of the Invention] 3. Detailed Description of the Invention (Field of Industrial Application): This invention provides redundancy in supplying power from a redundant power source to a load! The present invention relates to a power source device, and more particularly to a redundant power source device in which each power source device is provided with a circuit for overload protection.
（従来の技術）
第２図は、従来の冗長化電源装置の一例を示す概略構成
図である。図においてＰＳｌは第１の電源装置、ＰＳ２
は第２の電源装置、ＬＯは第１゜ｗ４２の電源装置Ｐｓ
ｉ、ＰＳ２からそれぞれダイオードＤＩ、Ｄ２を介して
負荷電流が供給される負荷である。第１．第２の電源装
置Ｐｓｉ、ＰＳ２は、その出力端Ｔ、、Ｔ、の電圧を安
定化させるための電圧制御回路１１．１２と、各電源装
置からの過電流を検出し、負荷電を保護する過負荷保護
回路２１．２２を有している。(Prior Art) FIG. 2 is a schematic configuration diagram showing an example of a conventional redundant power supply device. In the figure, PSl is the first power supply device, PS2
is the second power supply device, LO is the first power supply device Ps of w42
i and PS2 are loads to which load current is supplied via diodes DI and D2, respectively. 1st. The second power supplies Psi and PS2 have voltage control circuits 11 and 12 for stabilizing the voltage at their output terminals T, , T, and detect overcurrent from each power supply to protect the load power. It has overload protection circuits 21 and 22.
（発明が解決しようとする問題点）
このような構成の冗長化電源装置は、通常、負荷ＬＯに
供給する電流を半分づつ分担するが、いずれか一方が故
障した場合は、他方の電源装置が全負荷電流を負担する
ことになる。このために、各電源装置内の過負荷床ｉ１
回路２１．２２は、全負淘電流が流れることを想定して
構成する必要があるがこの場合、通常動作時（冗長化状
態）では、保護電流値が２倍となっており、保護協調等
の面で好ましくないという問題があった。(Problem to be Solved by the Invention) A redundant power supply with such a configuration usually shares the current supplied to the load LO in half, but if one of the power supplies fails, the other power supply It will bear the full load current. For this purpose, overload floor i1 in each power supply
Circuits 21 and 22 must be configured assuming that a full-load current flows, but in this case, during normal operation (redundant state), the protection current value is doubled, and protection coordination, etc. There was a problem that it was not desirable in terms of.
本発明は、このような問題点に鑑みてなされたもので、
その目的は、冗長化状態及び異常状態（一方の電源装置
が故障した状態）のいずれの状態においても適確な過負
荷保護動作を行なうことのできる信頼性の高い冗長化電
源装置を実現しようとするものである。The present invention was made in view of these problems, and
The purpose is to realize a highly reliable redundant power supply that can perform appropriate overload protection in both redundant and abnormal states (when one power supply fails). It is something to do.
（問題点を解決するための手段）
前記した問題点を解決する本発明は、それぞれ過負荷保
護回路を有する第１．第２の電源装置から負荷に電力を
供給する冗長化電源装置において、前記第１．第２の電
源装置に、互いに自己の動作の正常、異常状態を他方の
電源装置に通知する動作状態通知手段と、自己の過負荷
保護回路の保護のしきい値を前記他方の電源装置の動作
状態通知手段からの信号に応じて２ｍ的に切換える過負
荷床！！偵切換え手段とを設けたことを特徴とするもの
である。(Means for Solving the Problems) The present invention for solving the above-mentioned problems is based on first and second embodiments each having an overload protection circuit. In the redundant power supply device that supplies power from the second power supply device to the load, the first. The second power supply device includes an operation state notification means for notifying the other power supply device of the normal or abnormal state of its own operation, and a threshold value for protection of its own overload protection circuit to indicate the operation of the other power supply device. Overload floor that switches 2m in response to the signal from the status notification means! ! The present invention is characterized in that it is provided with a switchover means.
（実施例）
第１図は本発明に係る冗長化電源装置の構成ブロック図
である。図において、■、１１は第１．第２の電源装置
、ＬＯは第１．第２の電源装置■。(Embodiment) FIG. 1 is a configuration block diagram of a redundant power supply device according to the present invention. In the figure, ■, 11 is the first. The second power supply, LO, is the first. Second power supply ■.
！１から電力が供給されて動作する負荷である。! This is a load that operates by being supplied with power from 1.
第１の電源装置■（第２の電源装置！Ｉも同様）におい
て、ＲＧは電圧、電流調整回路を総括して示すもので、
例えばスイッチングレギュレータが用いられる。Ｒ１は
電流検出用の抵抗、ＤＩは逆電流阻止用のダイオード、
ＩＩ、 ＋２は電源装置Ｉの出力電圧ａｌ１１が得られ
る出力端子である。Ａ１は電圧誤差アンプで、出力端子
ＩＩ、 １２間に得られる出力電圧ｅＱｌと、基準電圧
ＥＳとを比較し、電圧・電流調整手段ＲＧを介して出力
電圧ｅｏｌが定電圧になるように制御している。Ａ２は
過負荷保護回路の一部を構成している比ｖＷ（誤差アン
プ）で、電流検出用抵抗Ｒ１からの電流検出信号と、ス
イッチＳＷを介して印加される第１．第２の過負荷保護
値（しきい値）■ＴＨＩ、■ＴＨ２のいずれかとを比較
する。この比較器Ａ□の出力は、電圧・電流１ｉ１整手
段ＲＧに印加され、ここで抵抗Ｒ１を流れる電流が過負
荷保護値に対応する電流値以上に流れないように過負荷
保護動作を行なう。Ａ３は自己の電源装置■の動作の正
常、異常状態を他方の電源装置Ｉ］に通知する動作状態
通知回路で、ここでは電流検出抵抗Ｒ１の一端の電圧を
検出することによって動作状態を判断するアンプが用し
忰おり、正常、＠密状態を示すハイレベル又はローレベ
ルの信号を端子１３に出力する。ＤＲはスイッチＳＷの
駆動回路で、他方の電源装置１１の動作状態通知回路か
らの信号（この信号は端子１４に印加される）を入力し
、スイッチＳＷを接点ａ又は接点すに切換え接続し、第
１．第２の過負荷保護値ｖ 、■ のいずれかを比
較器Ａ、の一方の丁ＩＩ Ｉ Ｔ Ｈ２
入力端に与える。In the first power supply device ■ (same as the second power supply device! I), RG collectively indicates the voltage and current adjustment circuit,
For example, a switching regulator is used. R1 is a current detection resistor, DI is a reverse current blocking diode,
II, +2 is an output terminal from which the output voltage al11 of the power supply device I is obtained. A1 is a voltage error amplifier that compares the output voltage eQl obtained between the output terminals II and 12 with the reference voltage ES, and controls the output voltage eol to be a constant voltage via the voltage/current adjustment means RG. ing. A2 is a ratio vW (error amplifier) which constitutes a part of the overload protection circuit, and is a ratio vW (error amplifier) which is a current detection signal from the current detection resistor R1 and the first .VW applied via the switch SW. The second overload protection value (threshold value) is compared with one of ■THI and ■TH2. The output of the comparator A□ is applied to the voltage/current adjustment means RG, which performs an overload protection operation so that the current flowing through the resistor R1 does not exceed a current value corresponding to the overload protection value. A3 is an operating status notification circuit that notifies the other power supply unit I of the normal or abnormal operation of its own power supply unit ■, and here the operating status is determined by detecting the voltage at one end of the current detection resistor R1. When the amplifier is in use, it outputs a high level or low level signal to the terminal 13 indicating a normal or closed state. DR is a drive circuit for the switch SW, which inputs a signal from the operating state notification circuit of the other power supply device 11 (this signal is applied to the terminal 14), and switches and connects the switch SW to contact A or contact I; 1st. Either of the second overload protection values v, 2 is applied to one input terminal of the comparator A.
ようにその大きさが選択されている。Its size has been selected so that:
このように構成された装はの動作を次に説明する。第１
．第２の電源装置１．Ｉ＋が共に正常に動作している状
態（冗長化状態）では、各電源装置は、互いに他方の電
′Ｉｎ装置から正常状態を示す信号を入力しており、各
スイッチ駆動回路ＤＲは、スイッチｓ Ｗを接点ａ側に
接続している。従って、第１．第２の電源装置１．１１
において、過負荷保護回路の一部を構成している比較器
Ａ、は、電流検出抵抗ＲＩを流れる電流■１が、第１の
過負荷保護値■ に対応した値より大きくならないよ
Ｔ１（１
うに、過負荷保護動作を行なう。The operation of the device configured as described above will be explained next. 1st
．． Second power supply device 1. In a state where both I+ are operating normally (redundant state), each power supply device inputs a signal indicating a normal state from the other power supply device, and each switch drive circuit DR inputs a signal indicating a normal state from the other power supply device. W is connected to the contact a side. Therefore, the first. Second power supply 1.11
, the comparator A, which constitutes a part of the overload protection circuit, sets T1 (1 In addition, overload protection is performed.
このような冗長化状態では、負荷ＬＯに、第１゜第２の
電源装置１．ＩＩから、それぞれ電流ｒ１ （合計で２
１１）が供給される。In such a redundant state, the load LO is connected to the first power supply device 1. II, respectively, the current r1 (total 2
11) is supplied.
次に、第１．？Ｊ２の電源装置Ｉ、＋１のうちの一方、
例えば第２のＴＬ源装置Ｉ＋が故障した場合、第１の？
！源装置■から、負ｖＪＬ Ｏに全電流が供給される。Next, the first. ? One of the power supplies I, +1 of J2,
For example, if the second TL source device I+ fails, the first?
! The full current is supplied to the negative vJL O from the source device ■.
この場合において、スイッチ駆動口′！？！ＩＤＲは第
２の電源装置１１から異常状態を示す信号を受け、スイ
ッチＳＷを接点す側に接続する。従って、比較器Ａ、は
、電流検出抵抗Ｒ１を流れる電流■。In this case, the switch drive port'! ? ! The IDR receives a signal indicating an abnormal state from the second power supply device 11 and connects the switch SW to the contact side. Therefore, the comparator A causes a current to flow through the current detection resistor R1.
が、第２の負荷保護値■ に対応した値より大Ｔ１（
２
きくならないように過負荷保護動作を行なう。is larger than the value corresponding to the second load protection value■ T1(
2 Perform overload protection to prevent overload.
この状態では、負荷ＬＯには前述したように第ｌの電源
装置■から全負荷電流が供給されているが、この時の第
１の電源装置■における過負尚保１護値Ｖ は、冗長
化状態の時の過負荷保護値ＴＩ！
■ の２倍となっており、適確な過負荷保護値ＨＩ
作を行なう。In this state, the load LO is supplied with the full load current from the first power supply unit ■ as described above, but the overload protection value V in the first power supply unit ■ at this time is redundant. Overload protection value TI in the state of ■ It is twice as high as the overload protection value HI.
（発明の効果）
以上説明したように、本発明によれば、第１゜第２の電
源装置Ｉ、Ｉ＋がほぼ同じ構成であって、″主−と°°
従”との関係にはなっておらず、また、異常状態には最
適な過負荷床！Ｉ値が与えられるもので、冗長化状態の
如何にかかわらず、適確な過負荷保護動作を行なう信頼
性の高い冗長化電源装置が実現できる。(Effects of the Invention) As explained above, according to the present invention, the first and second power supply devices I and I+ have almost the same configuration,
In addition, the optimum overload floor!I value is given in abnormal conditions, and appropriate overload protection operation is performed regardless of the redundancy state. A highly reliable redundant power supply device can be realized.
第１図は本発明装置の一例を示す構成ブロック図、第２
図は従来装置の一例を示す概略構成図である。
１．１１．・・・第１．第２の電源装置、ＬＯ・・・負
荷、Ａ、・・・動作状態通知手段、ＳＷ・・・スイッチ
、■ＴＨ１゜■ ・・・過負荷保護値、ＤＲ・・・ス
イッチ駆動回路。
ＴＩ＋２
第１図FIG. 1 is a configuration block diagram showing an example of the device of the present invention, and FIG.
The figure is a schematic configuration diagram showing an example of a conventional device. 1.11. ...First. Second power supply device, LO...load, A...operating state notification means, SW...switch, ■TH1゜■...overload protection value, DR...switch drive circuit. TI+2 Figure 1
Claims (1)
から負荷に電力を供給する冗長化電源装置において、 前記第１、第２の電源装置に、互いに自己の動作の正常
、異常状態を他方の電源装置に通知する動作状態通知手
段と、自己の過負荷保護回路の保護のしきい値を前記他
方の電源装置の動作状態通知手段からの信号に応じて２
値的に切換える過負荷保護値切換え手段とを設けたこと
を特徴とする冗長化電源装置。[Scope of Claims] In a redundant power supply device that supplies power to a load from a first power supply device and a second power supply device each having an overload protection circuit, the first power supply device and the second power supply device each have an overload protection circuit. an operating state notification means for notifying the other power supply of a normal or abnormal state, and a protection threshold of its own overload protection circuit according to a signal from the operation state notification means of the other power supply;
1. A redundant power supply device comprising: overload protection value switching means for switching values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12542386A JPS62282314A (en) | 1986-05-30 | 1986-05-30 | Redundant power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12542386A JPS62282314A (en) | 1986-05-30 | 1986-05-30 | Redundant power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62282314A true JPS62282314A (en) | 1987-12-08 |
Family
ID=14909732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12542386A Pending JPS62282314A (en) | 1986-05-30 | 1986-05-30 | Redundant power unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62282314A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH027789U (en) * | 1988-06-23 | 1990-01-18 | ||
| JPH02119572A (en) * | 1988-10-28 | 1990-05-07 | Shin Kobe Electric Mach Co Ltd | Dc power unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54135336A (en) * | 1978-03-10 | 1979-10-20 | Yokogawa Hokushin Electric Corp | Power source provided with redundancy |
-
1986
- 1986-05-30 JP JP12542386A patent/JPS62282314A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54135336A (en) * | 1978-03-10 | 1979-10-20 | Yokogawa Hokushin Electric Corp | Power source provided with redundancy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH027789U (en) * | 1988-06-23 | 1990-01-18 | ||
| JPH02119572A (en) * | 1988-10-28 | 1990-05-07 | Shin Kobe Electric Mach Co Ltd | Dc power unit |
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