JPS60183941A - Parallel operating power source - Google Patents
Parallel operating power sourceInfo
- Publication number
- JPS60183941A JPS60183941A JP59037897A JP3789784A JPS60183941A JP S60183941 A JPS60183941 A JP S60183941A JP 59037897 A JP59037897 A JP 59037897A JP 3789784 A JP3789784 A JP 3789784A JP S60183941 A JPS60183941 A JP S60183941A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- reference voltage
- parallel operation
- operation power
- supply device
- 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
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】
（イ）発明の技術分野
本発明は並列運転電源装置に係り、特に各電源ユニット
の電圧制御回路へ基準電圧を供給する回路に生ずる電気
的変動要因に起因して生ずる各電源ユニットの負荷分担
の不安定性を除去するようにした並列運転電源装置に関
する。[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to a parallel operation power supply device, and in particular, the present invention relates to a parallel operation power supply device, and in particular, it relates to a parallel operation power supply device, and in particular, it relates to a parallel operation power supply device, and in particular, it relates to a parallel operation power supply device, and in particular, it relates to a parallel operation power supply device. The present invention relates to a parallel operation power supply device that eliminates instability in load sharing between power supply units.
（Ｃｌ）技術の背景
負荷に電力を供給する場合に、２以上の電源ユニットを
並列運転してその供給を首尾よく行なわなければならな
い場合がある。Background of the (Cl) Technology When supplying power to a load, there are cases where two or more power supply units must be operated in parallel to successfully supply power.
このような場合において、各電源ユニットの負荷分担を
バランス良く、しかも安定して行なう必要がある。その
要求を満たすために、精巧な制御回路を電源ユニットに
設けて行なう技法も１つの対応手段としである反面、比
較的に簡易な制御回路で上述要求に応えられないだろう
かという要求も又存在する。In such a case, it is necessary to share the load among the power supply units in a well-balanced and stable manner. In order to meet this demand, one method is to install a sophisticated control circuit in the power supply unit, but on the other hand, there is also a demand that it is not possible to meet the above demand with a relatively simple control circuit. do.
（ハ）従来技術と問題点
従来において各電源ユニットの負荷分担持性を良好な状
態に維持するために、その制御回路にオペアンプを用い
て行なう技法があるが、これによれば、」二連要求を成
功裡に満たし得る反面、その回路構成の複雑化、コスト
アンプを余儀なくされてしまうのも否めない事実である
。(c) Conventional technology and problems Conventionally, in order to maintain the load sharing ability of each power supply unit in a good state, there is a technique of using an operational amplifier in the control circuit. Although the requirements can be successfully met, it is an undeniable fact that the circuit configuration becomes complicated and a cost amplifier is unavoidable.
このような不具合から免れんとして、第１図のような簡
易化した回路も禽えられるが、そのツェナーダイオード
ＺＤＩＩ、ＺＤ２］の温度特性や補助電源の変動による
ツェナー電圧の変動に伴って電源ユニット間の負荷バラ
ンスが変わって片側の電源ユニットが負荷の大部分を負
担するに至り、それを過負荷にしてしまうという不具合
が生ずることになる。従って、第１図の回路は負荷針Ｉ
１１性能の安定性に欠ける。In order to avoid such problems, a simplified circuit as shown in Fig. 1 can be used; The load balance between the two will change, and one power supply unit will bear most of the load, causing the problem of overloading it. Therefore, the circuit of Fig. 1 has a load needle I
11 Lack of stability in performance.
（ニ）発明の目的
本発明は上述したような従来装置の抱えている技術的課
題に鑑みて発明されたものであり、その目的は、安定し
た負荷分担持性で負荷に電力を供給し得る並列運転電源
装置を提供することにある。(d) Purpose of the invention The present invention was invented in view of the technical problems faced by the conventional devices as described above, and its purpose is to supply power to a load with stable load sharing. An object of the present invention is to provide a parallel operation power supply device.
（ホ）発明の構成
そして、この目的達成のため、本発明装置は負荷に並列
に接続された各電源ユニットの電圧制御回路へ基準電圧
を供給する上記各電源ユニットに設けられた基準電圧発
生回路の基準電圧同一化可能部間を接続して構成したも
のである。(E) Structure of the invention In order to achieve this object, the device of the present invention includes a reference voltage generation circuit provided in each power supply unit that supplies a reference voltage to the voltage control circuit of each power supply unit connected in parallel to the load. The reference voltage equalization is possible by connecting the reference voltage equalization units.
（へ）発明の実施例
以下、添付図面を参照しながら本発明の一実施例を説明
する。(F) Embodiment of the Invention Hereinafter, an embodiment of the invention will be described with reference to the accompanying drawings.
第２図は本発明の一実施例を示す。この図において、１
．２は電源ユニットで、３，４はその電圧制御回路であ
る。これら電圧制御回路は夫々、負荷５への給電線６．
７に直列に接続された抵抗Ｒ１１１？２１、ｌ−ランジ
スタＴＲ１１，ＴＲ２１、ホトカップラｐＨｌ、ＰＩ２
１、抵抗Ｒ１２、Ｒ２４から成る。８，９は基準電圧発
生回路で、これらは夫々、補助電源線１０．１１と給電
線７との間に並列に接続されたツェナーダイオードＺＤ
Ｉ１．ＺＤ２１と、これと並列に接続された可変抵抗Ｒ
ＶＩ １．ＲＶ２１、抵抗Ｒ１４，Ｒ２２との接続点１
２．１３を接続線１４で接続し、その可変抵抗ＲＶＩＩ
、ＲＶ２１の摺動端子を各別に上述トランジスタＴＲＩ
Ｉ、ＴＲ２１のベース及び抵抗Ｒ１３及びＲ２３を介し
て給電線６へ接続して構成するか、又はこのように構成
される回路において接続点１２．１３間を接続線１４で
接続する代わりにトランジスタＴＲＩＩ、ＴＲ２１のベ
ース間を接続線１５で接続して構成される。FIG. 2 shows an embodiment of the invention. In this figure, 1
．． 2 is a power supply unit, and 3 and 4 are its voltage control circuits. These voltage control circuits are connected to a power supply line 6. to a load 5, respectively.
Resistor R111?21 connected in series with 7, l-transistor TR11, TR21, photocoupler pHl, PI2
1. Consists of resistors R12 and R24. 8 and 9 are reference voltage generation circuits, each of which has a Zener diode ZD connected in parallel between the auxiliary power line 10, 11 and the feed line 7.
I1. ZD21 and variable resistor R connected in parallel with it
VI 1. Connection point 1 with RV21 and resistors R14 and R22
2.13 is connected with the connecting wire 14, and its variable resistor RVII
, the sliding terminals of RV21 are connected to the above-mentioned transistor TRI separately.
I, the base of TR21 and the resistors R13 and R23 are connected to the feed line 6, or in a circuit configured in this way, instead of connecting the connection points 12 and 13 with the connection line 14, the transistor TRII , and the bases of the TR 21 are connected by a connection line 15.
このように、基準電圧発生回路８．９の接続点１２．１
３間を接続することにより、ツェナーダイオードＺＤＩ
Ｉ、ＺＤ２１の温度特性に変化があっても、又補助電源
の変動によるツェナー電圧の変動があっても、それらの
変動はトランジスタＴＲＩＩ、ＴＲ２１のベースに供給
される基準電圧の略同等の変動となって現われるから、
電圧制御回路３．４の出力、即ちホ１−カプラＰｉｌｌ
。In this way, the connection point 12.1 of the reference voltage generation circuit 8.9
Zener diode ZDI by connecting between 3
Even if there are changes in the temperature characteristics of I and ZD21, or changes in the Zener voltage due to fluctuations in the auxiliary power supply, these fluctuations will be equivalent to fluctuations in the reference voltage supplied to the bases of transistors TRII and TR21. Because it appears,
The output of the voltage control circuit 3.4, that is, the H1-coupler Pill
.
ＰＩ２１の出力によって制御されるスイッチング塩＃ｉ
（電源ユニット１．２がそのように構成されている場合
）のパルス幅制御回路の制御度合ば負荷分担を安定した
状態に維持せしめ得る如きものとなる。Switching salt #i controlled by the output of PI21
The degree of control of the pulse width control circuit (if the power supply unit 1.2 is configured in this way) is such that the load sharing can be maintained in a stable state.
このような作用効果は接続点１２．１３間を接続する代
わりに、トランジスタＴＲＩＩ、ＴＲ２１のベース間を
接続する場合にも同等に得られる。Such effects can be obtained equally when the bases of the transistors TRII and TR21 are connected instead of connecting the connection points 12 and 13.
又、上述のような構成を採った場合の基準電圧の変動要
因はトランジスタＴＲＩＩ、ＴＲ２１のＶＢＥとなるが
、同一特性のトランジスタを用いることにより、その影
響も除き得る。Further, when the above-described configuration is adopted, the cause of variation in the reference voltage is the VBE of the transistors TRII and TR21, but this influence can be eliminated by using transistors with the same characteristics.
なお、上述の基準電圧発生回路、電圧制御回路が回路構
成の簡易性からして好ましいものであるが、これのみに
限られるものではない。Note that, although the reference voltage generation circuit and the voltage control circuit described above are preferable in view of the simplicity of the circuit configuration, the present invention is not limited thereto.
（［）発明の効果
以上述べたように、本発明によれば、回路の簡易性とい
う利点の享受に寄与しつつ、並列運転される電源ユニッ
トの負荷分担持性を安定化し得るという効果が得られる
。([) Effects of the Invention As described above, the present invention has the effect of stabilizing the load sharing of power supply units operated in parallel while contributing to the enjoyment of the advantage of circuit simplicity. It will be done.
Claims (1)
制御回路へ基準電圧を供給する上記各電源ユニットに設
けられた基準電圧発生回路の基準電圧同一化可能部間を
接続したことを特徴とする並列運転電源装置。 （２） 上記各基準電圧発生回路は同一構成で、その基
準電圧同一化可能部を補助電源出方端子間に接続された
ツェナーダイオードのカソードとしたことを特徴とする
特許請求の範囲第１項記載の並列運転電源装置。 （３） 上記各基準電圧発生回路は同一構成で、その基
準電圧同一化可能部をその基準電圧出方端としたことを
特徴とする特許請求の範囲第１項記載の並列運転電源装
置。 （４）上記基準電圧を受ける電圧制御回路のトランジス
タは同一特性のものとされたことを特徴とする特許請求
の範囲第１項、第２項又は第３項記載の並列運転電源装
置。[Scope of Claims] Tll Connects the reference voltage equalization possible parts of the reference voltage generation circuits provided in each of the power supply units that supply a reference voltage to the voltage control circuit of each power supply unit connected in parallel to the load. A parallel operation power supply device characterized by: (2) Each of the reference voltage generation circuits has the same configuration, and the reference voltage equalization portion thereof is the cathode of a Zener diode connected between the auxiliary power output terminals. Parallel operation power supply as described. (3) The parallel operation power supply device according to claim 1, wherein each of the reference voltage generation circuits has the same configuration, and the reference voltage equalization unit is the reference voltage output end. (4) The parallel operation power supply device according to claim 1, 2 or 3, wherein the transistors of the voltage control circuit receiving the reference voltage have the same characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59037897A JPS60183941A (en) | 1984-02-29 | 1984-02-29 | Parallel operating power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59037897A JPS60183941A (en) | 1984-02-29 | 1984-02-29 | Parallel operating power source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60183941A true JPS60183941A (en) | 1985-09-19 |
| JPH0210659B2 JPH0210659B2 (en) | 1990-03-09 |
Family
ID=12510330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59037897A Granted JPS60183941A (en) | 1984-02-29 | 1984-02-29 | Parallel operating power source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60183941A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04322129A (en) * | 1991-04-23 | 1992-11-12 | Fujitsu Ltd | Parallel operation system for power supply unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58136235A (en) * | 1982-02-04 | 1983-08-13 | 富士通株式会社 | Parallel operation system for dc constant- voltage device |
-
1984
- 1984-02-29 JP JP59037897A patent/JPS60183941A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58136235A (en) * | 1982-02-04 | 1983-08-13 | 富士通株式会社 | Parallel operation system for dc constant- voltage device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04322129A (en) * | 1991-04-23 | 1992-11-12 | Fujitsu Ltd | Parallel operation system for power supply unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0210659B2 (en) | 1990-03-09 |
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