JPS58176714A - Power supply device - Google Patents
Power supply deviceInfo
- Publication number
- JPS58176714A JPS58176714A JP5964582A JP5964582A JPS58176714A JP S58176714 A JPS58176714 A JP S58176714A JP 5964582 A JP5964582 A JP 5964582A JP 5964582 A JP5964582 A JP 5964582A JP S58176714 A JPS58176714 A JP S58176714A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- diode
- power supply
- output
- amplifier
- 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
- G05F1/468—Regulating voltage or current wherein the variable actually regulated by the final control device is dc characterised by reference voltage circuitry, e.g. soft start, remote shutdown
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は電源装置に係シ、籍に２重化用電Ｓ装置に適用
すると、出力電圧の安定直の向上を図ることの出来る電
源装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power supply device, and more particularly, to a power supply device that can improve the stability of output voltage when applied to a redundant power S device.
従来電源装置ｔ−２重化する手段として第１図の様に、
出力がある一定値に安定化したｚつの電源装＊ｉ、ｚ’
を用意してそのおのおのの出力を逆流阻止用ダイオード
３，４を介して突き合せ接続を行い負荷７に供給する構
成を取った。しかし突き合せを行うダイオード３，４は
、第２図の橡な順特性でおるため、負荷電流工がΔｌに
け変化すると第２図でわかる機にｊｖなるＩＩ電圧の変
化がある。また順電圧は周囲温度によっても変化するた
め負荷に供給される電圧は不安定になるという欠点かあ
る。Conventionally, as a means of duplicating the power supply device, as shown in Fig. 1,
Z power supplies whose outputs are stabilized at a certain value *i, z'
A configuration was adopted in which the output of each of these was connected to the load 7 through backflow blocking diodes 3 and 4. However, since the diodes 3 and 4 that match have the square forward characteristic shown in FIG. 2, when the load current changes by Δl, there is a change in the II voltage jv as seen in FIG. Furthermore, since the forward voltage varies depending on the ambient temperature, there is a drawback that the voltage supplied to the load becomes unstable.
本発明の目的は前記した欠点をなくした電源装置ｉ１１
を提供するにある。The object of the present invention is to eliminate the above-mentioned drawbacks by using a power supply device i11.
is to provide.
本発明は突き脅せに使用するダイオードを２ヶ直列に接
続し、一方のダイオード１＊電圧の変化検出用として使
用し、順電圧が大きくなつｆｃＪｉｈ台は１１Ｌ源装置
の出力を上昇させ、順電圧が小さくなった場合は電源装
置の出力を降下烙せるというふうにして、順電圧の変化
を打ち消す儂に電源装置の出力電圧ｔ−制御することに
よシ、負＃燗の電圧を一定に保つ様にしたものである。In the present invention, two diodes used for thrust threat are connected in series, and one diode is used to detect changes in voltage. When t becomes small, the output of the power supply is lowered, thereby canceling out the change in the forward voltage, and by controlling the output voltage of the power supply t, the negative voltage is kept constant. It was made in a similar manner.
以下、本発明の一来ｍ伺を第３図により説明する。第３
図の回路ｒｉ第１図で示した電源装置五に相当する電源
装置ｌムの実施り図である。電源鱗［２に相当する電源
装置も電Ｉｌ装置ｌムと同じ構成でめる。この電源装置
ＩＡの出力側には逆流阻止用ダイオード３を設けている
。Hereinafter, the history of the present invention will be explained with reference to FIG. Third
FIG. 2 is an implementation diagram of a power supply device 1 corresponding to the power supply device 5 shown in FIG. 1; The power supply unit corresponding to the power scale [2] has the same configuration as the power supply unit. A backflow blocking diode 3 is provided on the output side of this power supply device IA.
１８８図においてトランジスタ８のコレクタは入力の正
端子に、ベースは差動増幅１）ｔｏの出力端子に、エミ
ッタは抵抗器ｌｓの一方の端子と抵抗器１６の一方の端
子とダイオード５のアノード端子にそれぞれ接続させて
いる。セして差動増幅器１００反転入力は抵抗器１８の
一方の端子と抵抗器１９の一方の端子に、非反転入力は
抵抗器１３の他方の端子と定電圧ダイオード１２のカソ
ード端子にそれぞれ接続されている。セしてＭ＃増幅器
１１の出力端子に定電圧ダイオード１２０アノード端子
と抵抗器１４の一方の端子に、反転入力は抵抗！１４（
Ｄ他方の端子と抵抗器１５１ｉ介してダイオード５のカ
ソード端子と、抵抗器１８０他方の端子とダイオードｓ
のアノード端子に、非反転入力は抵抗器１６の他方０端
子と抵抗＠１７の一力の端子に接続漬れている。そして
入力の一趨子は抵抗器１７（Ｚ）他方の端子と抵抗！１
９の他方の端子に接続され、それが出力の負端子となる
。In Figure 188, the collector of transistor 8 is connected to the positive terminal of the input, the base is connected to the output terminal of differential amplifier 1), and the emitter is connected to one terminal of resistor ls, one terminal of resistor 16, and the anode terminal of diode 5. are connected to each. The inverting input of the differential amplifier 100 is connected to one terminal of the resistor 18 and one terminal of the resistor 19, and the non-inverting input is connected to the other terminal of the resistor 13 and the cathode terminal of the voltage regulator diode 12. ing. Connect the output terminal of the M# amplifier 11 to the anode terminal of the constant voltage diode 120 and one terminal of the resistor 14, and the inverting input to the resistor! 14(
The other terminal of the diode 5 is connected to the cathode terminal of the diode 5 via the resistor 151i, and the other terminal of the resistor 180 is connected to the diode s.
The non-inverting input is connected to the anode terminal of the resistor 16 and the other 0 terminal of the resistor @17. And one line of input is resistance between resistor 17 (Z) and the other terminal! 1
9, which becomes the negative terminal of the output.
さらにダイオード易のカソード端子が出力の正端子とな
る。Furthermore, the cathode terminal of the diode becomes the positive terminal of the output.
以上の様な回Ｗ＆にお−て以下動作音説明する。The operation sounds of the above-mentioned times W& will be explained below.
まず入力端子の正と食間には本電源装置ＩＡｔｍ作させ
るに必ｌＩな十分な入力電圧Ｖｉｔ−供給する。First, a sufficient input voltage Vit- necessary to operate the present power supply device IAtm is supplied between the positive and negative input terminals.
そして説明の４ｉ合上出力の負ｌ１ｌＩはアース電位と
する。The negative l1lI of the 4i combined output in the explanation is assumed to be the ground potential.
きて差動増Ｓ器１１と抵抗？１ｉｒ１４〜１７から成る
回路の出力電圧Ｖ、は一般的に知られている様に下記式
の儂になる。What about the differential amplifier 11 and the resistor? As is generally known, the output voltage V of the circuit consisting of 1ir14 to 17 is determined by the following equation.
１４
Ｖム一（Ｖ＋−Ｖｍ）−一 ・・・・・・ （
１）１５
ここで各抵抗器の値を１抵抗器１４＝−Ｒ１４゜抵抗″
Ｊ５１５−几１５．抵抗器１６＝几１６．抵抗器１７−
Ｒｌ７．抵抗器１８＝８１８．抵抗器１９＝Ｒ１９とす
る。さらにＲ１５＝ｆＬ１６゜Ｒ１４＝Ｒ１７又差動増
−器１１（２）出力電圧ｔＶム、ダイオード５の１ノー
ド及びカソードＯ電位ｔそれぞれ■１．Ｖ＊ とする。14 Vm1 (V+-Vm)-1 ...... (
1) 15 Here, the value of each resistor is 1 resistor 14 = -R14゜resistance''
J515-几15. Resistor 16 = 16. Resistor 17-
Rl7. Resistor 18=818. Let resistor 19=R19. Furthermore, R15=fL16°R14=R17 Also, the differential amplifier 11 (2) output voltage tVm, the 1 node of the diode 5 and the cathode O potential t, respectively 1. Let it be V*.
次に抵抗器１３から流れる電ｆＩＬＶｃより生ずる定電
圧ダイオード１２の（ナー電圧ｔ Ｖ ｚとすると差動
増１１１ｉ）１０の非反転入力端子部の電位Ｖ−はＶｓ
＝Ｖａ＋Ｖｇ ・・・・・・ （２）とな
る。この橡にして与えられる基準電圧Ｖａｔ基準として
、■！なる電位は抵抗器ｌＩａと抵抗器１９で分圧して
差動増幅器ｌＯの反転入力に入力し、ｖＩＯ電位が規定
値よシ大きいと、差動増幅器ｌＯは出力を下げる橡に励
く。するとそれに接続されているトランジスタ８０ペー
スを介してエミッタの電位も下がるのでｖｌの電位も下
がる。Next, the potential V- at the non-inverting input terminal of the constant voltage diode 12 (differential increase 111i if the voltage is t V z) generated by the current fILVc flowing from the resistor 13 is Vs.
=Va+Vg (2). As the reference voltage Vat given by this equation, ■! The potential is divided by the resistor lIa and the resistor 19 and inputted to the inverting input of the differential amplifier lO, and when the vIO potential is larger than the specified value, the differential amplifier lO is encouraged to lower its output. Then, the potential of the emitter decreases via the transistor 80 connected thereto, so the potential of vl also decreases.
次に前記とは逆にＶｍが規定値より小さい場合は、差動
増幅器１０は出力を上げる橡にＪＩｌｂ！）ｊンジス木
のベースを介してＶ、の電位を上げる。以上の様にして
Ｖ、の電位は６る規定値に保たれる。Next, contrary to the above, if Vm is smaller than the specified value, the differential amplifier 10 increases the output JIlb! ) j raise the potential of V, through the base of the tree. As described above, the potential of V is maintained at a specified value of 6.
そしてダイオード３を介して出力Ｖ＠に出力される。次
にＶｅが何Ｖになるかｔ以下数式を以ってｌｉＩ！明す
る。Then, it is output via the diode 3 to the output V@. Next, determine how many V Ve will be below t using the formula liI! I will clarify.
＋１）武及び第３図より
（ただシＶｏ＋ ＝Ｖｔ Ｖｍ 、 Ｖｏｗ ＝Ｖ＊
Ｖｏ トする）
上式を展開すると
ここで、８１４ ：Ｒ１５−几、１９： （Ｒｌｇ−１
−Ｒ１９）となる像に定数を選定すると
となる。次に抵抗器１８に流れる電流ダイオードｓｔ−
滝れる電流に比べて十分に小さくなる様に、Ｒ１８及び
Ｒ１Ｑｔ高抵抗値とし、さらにダイオード５とダイオー
ド３は同一仕様の物ｔ−使うことにより第２１！Ｅｌで
示した電圧電ｆｔ％性は周囲ｍ度にふる影替も含めてき
わめて似か工った値とすることが出来るので、Ｖｎｌ＝
Ｖｏｌ とすることができる。するとＶ・は
となり、ｖｌｌｌ の値の変化に関係なくｖＩを一定
に保つことが出来ることが分かる。+1) From Takeshi and Figure 3 (TadasiVo+ =Vt Vm, Vow =V*
When the above formula is expanded, 814: R15-几, 19: (Rlg-1
-R19) if a constant is selected for the image. Next, the current diode st- flowing through the resistor 18
By setting R18 and R1Qt to high resistance values so that the current is sufficiently small compared to the flowing current, and using diode 5 and diode 3 with the same specifications, the 21st! Since the voltage/electricity ft% characteristic indicated by El can be set to a very similar value including the shadow change in the surrounding m degree, Vnl=
Vol. Then, V. becomes, and it can be seen that vI can be kept constant regardless of changes in the value of vllll.
次に第３図による実施例の実験績釆會第５図に示す。特
性Ａｒ１本実施例の特性、特性Ｂｒｔ第１図の従来例０
％性を示す、ｔた点線は周囲温ｔｔ。Next, the experimental results of the example shown in FIG. 3 are shown in FIG. Characteristics Ar1 Characteristics of this embodiment, characteristics Brt Conventional example 0 in Fig. 1
The dotted line indicating the % temperature is the ambient temperature.
Ｃ１実繍は周囲温ｊｌを５０Ｃとした時の特性を示す。C1 embroidery shows the characteristics when the ambient temperature jl is 50C.
負荷電流及び周囲温度に対する出力電圧■・の安定度が
大幅に向上しているのが分かる。It can be seen that the stability of the output voltage (■) with respect to load current and ambient temperature has been significantly improved.
次に本発明の他の一実施例を篇４図に示す。纂４図はス
イッチングレギュレータ式電源に適用した場合の回路を
示す−のである。パルス発生器２Ｇ、トランジスタ９．
変圧器２１．ダイオード６、コンデンサ２２から成る部
分は一般的に知られたスイッチングレギュレータ式電源
を示すものであシ、それを除い友部分はＪＩ３図で示し
た実施例と同様である。動作上の相異点は差動増＠！ｌ
Ｏによシ検出した誤差分の電圧をパルス発生器２０にて
パルス幅の変化に変換し出力に噌遺する点にある。発明
部分における動作及び効果は同体でおるので省略する。Next, another embodiment of the present invention is shown in Figure 4. Figure 4 shows a circuit when applied to a switching regulator type power supply. Pulse generator 2G, transistor 9.
Transformer 21. The part consisting of the diode 6 and the capacitor 22 represents a generally known switching regulator type power supply, and other parts are the same as the embodiment shown in Figure JI3. The difference in operation is increased differential @! l
The voltage corresponding to the error detected by O is converted into a change in pulse width by the pulse generator 20 and remains in the output. Since the operations and effects of the invention are the same, they will be omitted.
以上実ｍ告にて評＃１１１１に説明したように、本発明
によれば、故障時のバックアップのために、複数の電源
装置１ｉ１１を並列に接続する時に使用ダイオードの順
電圧の、負荷電流及び周囲温度による変化が部品のバラ
ツキがない場合は０■に、発明者が行った製品レベルで
のＳ＆のバラツキを考慮した実験においても３０分の１
機［ＬＦ−低減することが可能でおる。As explained in review #1111 in the above actual report, according to the present invention, the load current and the forward voltage of the diode used when connecting a plurality of power supplies 1i11 in parallel for backup in case of failure If there is no variation in parts, the change due to ambient temperature will be 0■, and in an experiment conducted by the inventor that takes into account the variation in S& at the product level, it will be 1/30.
It is possible to reduce the LF.
第１図は従来の２重化電源装置を示す回路図、第２図は
シリコンダイオードの順特性の一肖を示す図、第３図は
本発明の一拠施カを示す回路図、第４図は本発明の他の
一実施カを示す回路図、第５凶は第３図の実施例及び従
来例の特性を示す図である。
１．２・・・電源装置、３〜６・・・グイカード、７・
・・負荷、８．９・・・トランジスタ、１０，１１−°
°差動増幅器、１２・・・定電圧ダイオード、１３〜１
９・・・抵ＫＷ、２０・・・パルス発生（転）、２１・
・・変圧器、２２川コンデンサ。
代塩入 弁塩士 執事正真
γ１図
７２図
順電圧□Fig. 1 is a circuit diagram showing a conventional duplex power supply, Fig. 2 is a diagram showing a forward characteristic of a silicon diode, Fig. 3 is a circuit diagram showing an implementation of the present invention, and Fig. 4 is a circuit diagram showing a conventional dual power supply device. The figure is a circuit diagram showing another embodiment of the present invention, and the fifth figure is a diagram showing characteristics of the embodiment of FIG. 3 and the conventional example. 1.2...Power supply device, 3-6...Gui card, 7.
...Load, 8.9...Transistor, 10,11-°
°Differential amplifier, 12... Constant voltage diode, 13-1
9...Resistance KW, 20...Pulse generation (rotation), 21.
...Transformer, 22 river capacitor. Daisioiri Bensioshi Butler Seishin γ1 Figure 72 Forward voltage □
Claims (1)
荷に電源を供給する電源装置に於いて、上記＃１１のダ
イオードと同−又は同種の纂２のダイオードｆ：該＠ｌ
のダイオードに直列に接続すると共に、この第２のダイ
オードに上記ｍｌのダイオードに流れる電流と同−又は
同様の電ｆＩＬ會流す菖ｌの手段と、上記＃Ｉ２のダイ
オードの順方向電圧変化を検出してその検出緒釆によｐ
、Ｉｌｌのダイオードの順方向電圧変化を相殺すべく、
その前段の電圧を上下させて、上記負荷に定電圧【供給
する＃ｌＫ２の手段とを具えてなる電Ｉｌ装置。[Claims] 1. A diode (referred to as a first diode) [In a power supply device that supplies power to a load through a diode, a diode f of group 2 that is the same as or of the same type as the diode #11 above: @l
A means for connecting this second diode in series with the diode #I2 and passing a current equal to or similar to the current flowing through the diode #I2, and detecting the change in the forward voltage of the diode #I2. Then, according to the detection method, p
, Ill, in order to cancel the forward voltage change of the diode,
An electrical device comprising means for supplying a constant voltage to the load by increasing or decreasing the voltage at the previous stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5964582A JPS58176714A (en) | 1982-04-12 | 1982-04-12 | Power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5964582A JPS58176714A (en) | 1982-04-12 | 1982-04-12 | Power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58176714A true JPS58176714A (en) | 1983-10-17 |
Family
ID=13119154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5964582A Pending JPS58176714A (en) | 1982-04-12 | 1982-04-12 | Power supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58176714A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60135915U (en) * | 1984-02-16 | 1985-09-10 | 古河電気工業株式会社 | power circuit |
| JPH05111257A (en) * | 1991-10-18 | 1993-04-30 | Hitachi Ltd | Method and apparatus for multiplexing dc stabilized power source |
-
1982
- 1982-04-12 JP JP5964582A patent/JPS58176714A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60135915U (en) * | 1984-02-16 | 1985-09-10 | 古河電気工業株式会社 | power circuit |
| JPH05111257A (en) * | 1991-10-18 | 1993-04-30 | Hitachi Ltd | Method and apparatus for multiplexing dc stabilized power source |
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