JPS59214926A - Detecting circuit of voltage - Google Patents
Detecting circuit of voltageInfo
- Publication number
- JPS59214926A JPS59214926A JP58090220A JP9022083A JPS59214926A JP S59214926 A JPS59214926 A JP S59214926A JP 58090220 A JP58090220 A JP 58090220A JP 9022083 A JP9022083 A JP 9022083A JP S59214926 A JPS59214926 A JP S59214926A
- Authority
- JP
- Japan
- Prior art keywords
- diodes
- parallel
- circuit
- stabilized power
- load
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/59—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices including plural semiconductor devices as final control devices for a single load
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Direct Current Feeding And Distribution (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
Description
【発明の詳細な説明】
（ａ）９発明の技術分野
本発明は安定化電源の電圧検出回路に係り、特に安定化
電源の並列運転時の出力電圧安定化の為の電圧検出回路
に関するものである。Detailed Description of the Invention (a) 9 Technical Field of the Invention The present invention relates to a voltage detection circuit for a stabilized power supply, and particularly relates to a voltage detection circuit for stabilizing the output voltage during parallel operation of a stabilized power supply. be.
（ｂ）、従来技術と問題点
安定化電源は通信、電子の各種機器に於いて使用されて
いるが、従来安定化電源の並列運転が信頼性の向上、出
力容量の不足を補う目的で行われている。(b), Prior Art and Problems Stabilized power supplies are used in various communication and electronic devices, but conventionally, parallel operation of stabilized power supplies has been carried out to improve reliability and compensate for lack of output capacity. It is being said.
第１図は従来の安定化電源の並列運転の一実施例を示す
ブロック図である。FIG. 1 is a block diagram showing an example of parallel operation of conventional stabilized power supplies.
第１図に於いて、ＰＷＲＩ、ＰＷＲ２は夫々安定化電源
回路、Ｃ０ＮＴ１、Ｃ０ＮＴ２は夫々制御回路、ＡＭＰ
Ｉ、ＡＭＰ２は夫々娯差増幅回路、Ｄｌ、Ｄ１’Ｌｌ：
夫々結合ダイオード、ＬＯＡＤは負荷、Ｖｉｎ、Ｖ’ｉ
ｎは夫々入力電源である。In Figure 1, PWRI and PWR2 are respectively stabilized power supply circuits, C0NT1 and C0NT2 are control circuits, and AMP
I, AMP2 are entertainment difference amplifier circuits, Dl, D1'Ll:
respectively coupled diodes, LOAD is the load, Vin, V'i
n is an input power source, respectively.
安定化電源の並列運転を行う為には、夫々の安定化電源
回路ＰＷＲｉ、ＰＷＲ２の出力に図示の様にダイオード
Ｄ１、Ｄ１″を挿入し、並列運転する相手の電源回路の
影響を遮断している。To perform parallel operation of stabilized power supplies, insert diodes D1 and D1'' into the outputs of each stabilized power supply circuit PWRi and PWR2 as shown in the figure to cut off the influence of the other power supply circuit to be operated in parallel. There is.
此の様に結合ダイオードを使用する並列運転方式では、
負荷ＬＯＡＤの変動により安定化電源回路の出力電流が
変化すると結合ダイオードの動作抵抗による出力電圧変
動を生じ、叉結合ダイオードの特性のバラツキにより負
荷配分に差を生ずると云う欠点がある。In the parallel operation method using coupling diodes like this,
When the output current of the stabilized power supply circuit changes due to fluctuations in the load LOAD, output voltage fluctuations occur due to the operating resistance of the coupling diode, and variations in the characteristics of the cross-coupling diodes cause differences in load distribution.
（Ｃ）０発明の目的
゛ 本発明の目的は従来技術の有する上記の欠点を除去
し、負荷ＬＯＡＤの変動により出力電圧変動を生ずるこ
とがなく且つ負荷配分に変化を与えぬ良好な安定化電源
の電圧検出回路を提供することである。(C)0Object of the Invention゛ The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to provide a well-stabilized power supply that does not cause output voltage fluctuations due to load LOAD fluctuations and does not cause changes in load distribution. An object of the present invention is to provide a voltage detection circuit.
（ｄ）９発明の構成
上記の目的は本発明によれば、出力に結合用ダイオード
を有する複数個の安定化電源の並列運転方式に於いて、
前記結合用ダイオードと並列に抵抗と検出用ダイオード
からなる直列回路を接続し、前記検出用ダイオードと前
記結合用ダイオードの電流の流れる方向を同一とし、前
記検出用ダイオードと前記結合用ダイオードの接続点を
負荷に接続し、前記抵抗と前記検出用ダイオードの接続
点に於いて出力電圧を検出し、帰還をかける様にしたこ
とを特徴とする電圧検出回路を提供することにより達成
される。(d) 9 Structure of the Invention According to the present invention, in a parallel operation system of a plurality of stabilized power supplies each having a coupling diode at the output,
A series circuit consisting of a resistor and a detection diode is connected in parallel with the coupling diode, the direction of current flow in the detection diode and the coupling diode is the same, and a connection point between the detection diode and the coupling diode is connected. This is achieved by providing a voltage detection circuit characterized in that the output voltage is connected to a load, the output voltage is detected at a connection point between the resistor and the detection diode, and feedback is applied.
（ｅ）０発明の実施例
第２図は本発明の一実施例を示すブロック図である。第
２図に於いて、Ｄ２、Ｄ２’ は夫々検出用ダイオード
、Ｒ，Ｒ’ は夫々抵抗であり、其の他の数字、記号は
第１図と同じである。(e) 0 Embodiment of the Invention FIG. 2 is a block diagram showing an embodiment of the invention. In FIG. 2, D2 and D2' are detection diodes, R and R' are resistors, and the other numbers and symbols are the same as in FIG.
以下第２図に従って本発明の詳細な説明する。The present invention will be described in detail below with reference to FIG.
本発明は並列接続された結合ダイオードＤ１、Ｄ１′の
電流分端が動作抵抗に反比例することに着目し、電圧安
定回路の結合ダイオードと並列に抵抗とダイオードの直
列回路を接続し、前記抵抗とダイオードの直列回路の接
続点から出力端電圧に準じた電圧を得て誤差増幅回路Ａ
ＭＰを駆動して制御回路Ｃ０ＮＴに負帰還することによ
り出力端電圧を安定化するものである。The present invention focuses on the fact that the current portion of the parallel-connected coupling diodes D1 and D1' is inversely proportional to the operating resistance, and connects a series circuit of a resistor and a diode in parallel with the coupling diode of the voltage stabilizing circuit. Error amplification circuit A obtains a voltage based on the output terminal voltage from the connection point of the series circuit of diodes.
The output terminal voltage is stabilized by driving MP and providing negative feedback to the control circuit C0NT.
第３図は本発明の詳細な説明する回路図である。FIG. 3 is a circuit diagram illustrating the present invention in detail.
第３図に於いて、ｒｌ、ｒ２は夫々ダイオードＤ１、Ｄ
２の動作抵抗である。In FIG. 3, rl and r2 are diodes D1 and D, respectively.
This is the operating resistance of 2.
ダイオードＤ１、Ｄ２を流れる電流を夫々Ｉａ、Ｉｂと
すれば、
Ｉａ＝ （（ｒ２＋Ｒ）／ （ｒｌ＋ｒ２＋Ｒ））Ｘ０
Ｉｂ−（ｒｌ／ （ｒｌ＋ｒ２＋Ｒ））ｘｌ。If the currents flowing through the diodes D1 and D2 are Ia and Ib, respectively, Ia=((r2+R)/(rl+r2+R))X0 Ib-(rl/(rl+r2+R))xl.
但し負荷電流Ｉｏ＝Ｉａ＋Ｉｂ とする。However, the load current Io=Ia+Ib is assumed.
叉増幅回路ＡＭＰの入力電流は極めて小さいので無視す
る。The input current of the amplifier circuit AMP is extremely small, so it is ignored.
従って抵抗ＲをダイオードＤ１、Ｄ２の動作抵抗ｒ１、
ｒ２より大きく選定することにより、ダイオードＤ２の
動作抵抗ｒ２による電圧降下が減少し、ａ点の電圧は出
力電圧■０に近づく。Therefore, the resistance R is the operating resistance r1 of the diodes D1 and D2,
By selecting a value larger than r2, the voltage drop due to the operating resistance r2 of the diode D2 is reduced, and the voltage at point a approaches the output voltage ■0.
従ってａ点の電圧によって帰還をかけることは、結合ダ
イオードの動作抵抗による出力電圧の変動を抑制するこ
とが出来、電圧安定度を改善することが可能となる。Therefore, by applying feedback using the voltage at point a, it is possible to suppress fluctuations in the output voltage due to the operating resistance of the coupling diode, and it is possible to improve voltage stability.
叉結合ダイオードの動作抵抗のバラツキによる負荷配分
の変化も抑えることが出来る。Changes in load distribution due to variations in the operating resistance of the cross-coupled diodes can also be suppressed.
（ｆ）３発明の効果
以上詳細に説明した様に本発明によれば、簡単な回路の
追加によって、より安定な安定化電源を実現出来ると云
う大きい効果がある。(f) 3 Effects of the Invention As explained in detail above, the present invention has the great effect of realizing a more stable stabilized power supply by adding a simple circuit.
第１図は従来の安定化電源の並列運転の一実施例を示す
ブロック図である。
第２図は本発明の一実施例を示すブロック図である。
第３図は本発明の詳細な説明する回路図である。
図に於いて、ＰＷＲｌ、ＰＷＲ２は夫々安定化電源回路
、Ｃ０ＮＴｌ、Ｃ０ＮＴ２は夫々制御回路、ＡＭＰＩ、
ＡＭＰ２は夫々誤差増幅回路、Ｄｌ、ＤＩ’ は夫々結
合用ダイオード、Ｄ２、Ｄ２”は夫々検出用ダイオード
、Ｒ，Ｒ’ は夫々抵抗、ｒｌ、ｒ２は夫々ダイオード
Ｄ１、Ｄ２の動作抵抗、ＬＯＡＤは負荷、Ｖｉｎｓ Ｖ
’ ｉｎは夫々入力電源である。
竿 １ 図
Ｐｗ〆２
壬 ２ 圀
ＡＭＰへ
竿 ３ 昭FIG. 1 is a block diagram showing an example of parallel operation of conventional stabilized power supplies. FIG. 2 is a block diagram showing one embodiment of the present invention. FIG. 3 is a circuit diagram illustrating the present invention in detail. In the figure, PWRl and PWR2 are respectively stabilized power supply circuits, C0NTl and C0NT2 are control circuits, AMPI,
AMP2 is an error amplifier circuit, Dl and DI' are coupling diodes, D2 and D2'' are detection diodes, R and R' are resistors, rl and r2 are operating resistances of diodes D1 and D2, respectively, and LOAD is a Load, Vins V
' in is an input power source, respectively. Rod 1 Figure Pw〆2 壬 2 To the AMP Rod 3 Akira
Claims (1)
並列運転方式に於いて、前記結合用ダイオードと並列に
抵抗と検出用ダイオードからなる直列回路を接続し、前
記検出用ダイオードと前記結合用ダイオードの電流の流
れる方向を同一とし、前記検出用ダイオードと前記結合
用ダイオードの接続点を負荷に接続し、前記抵抗と前記
検出用ダイオードの接続点に於いて出力電圧を検出し、
帰還をかける様構成したことを特徴とする電圧検出回路
。In a parallel operation method of a plurality of stabilized power supplies each having a coupling diode at the output, a series circuit consisting of a resistor and a detection diode is connected in parallel with the coupling diode, and the detection diode and the coupling diode are connected in parallel. the direction of current flow is the same, the connection point between the detection diode and the coupling diode is connected to a load, and the output voltage is detected at the connection point between the resistor and the detection diode,
A voltage detection circuit characterized in that it is configured to apply feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58090220A JPS59214926A (en) | 1983-05-23 | 1983-05-23 | Detecting circuit of voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58090220A JPS59214926A (en) | 1983-05-23 | 1983-05-23 | Detecting circuit of voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59214926A true JPS59214926A (en) | 1984-12-04 |
Family
ID=13992396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58090220A Pending JPS59214926A (en) | 1983-05-23 | 1983-05-23 | Detecting circuit of voltage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59214926A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2983006A1 (en) * | 2011-11-22 | 2013-05-24 | Thales Sa | SECURE AND CONTINUOUS CONTINUOUS POWER SUPPLY SYSTEM WITH MULTIPLE INPUTS |
-
1983
- 1983-05-23 JP JP58090220A patent/JPS59214926A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2983006A1 (en) * | 2011-11-22 | 2013-05-24 | Thales Sa | SECURE AND CONTINUOUS CONTINUOUS POWER SUPPLY SYSTEM WITH MULTIPLE INPUTS |
| WO2013076214A1 (en) * | 2011-11-22 | 2013-05-30 | Thales | Secured and regulated continuous power supply system with multiple inputs |
| CN104067472A (en) * | 2011-11-22 | 2014-09-24 | 泰雷兹公司 | Secured and regulated continuous power supply system with multiple inputs |
| US9774185B2 (en) | 2011-11-22 | 2017-09-26 | Thales | Secured and regulated continuous power supply system with multiple inputs |
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