JPH11243640A - Power supply control method and power supply control device for suppression of rush current - Google Patents
Power supply control method and power supply control device for suppression of rush currentInfo
- Publication number
- JPH11243640A JPH11243640A JP10040303A JP4030398A JPH11243640A JP H11243640 A JPH11243640 A JP H11243640A JP 10040303 A JP10040303 A JP 10040303A JP 4030398 A JP4030398 A JP 4030398A JP H11243640 A JPH11243640 A JP H11243640A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- current
- power
- signal
- voltage
- 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.)
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Direct Current Feeding And Distribution (AREA)
- Control Of Voltage And Current In General (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は突入電流抑圧用の電
源制御方法および電源制御装置に関し、特に複数の電源
装置に対し同時に電源をオンする際に各電源装置の突入
電流の重なりにより生ずる過大突入電流を抑圧するため
の電源制御方法および電源制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply control method and a power supply control device for suppressing an inrush current, and more particularly, to an overrush caused by an overlap of inrush currents of respective power supply devices when a plurality of power supply devices are simultaneously turned on. The present invention relates to a power supply control method and a power supply control device for suppressing a current.
【０００２】[0002]
【従来の技術】一般にコンピュータ、通信装置などの電
子装置の電源投入時には瞬間時な突入電流が発生する。
これは各装置が内蔵する電源装置あるいは電源回路に用
いられているキャパシタへの充電電流などが主原因であ
り、そのピーク電流値と時定数とはキャパシタ容量値と
給電回路のインピーダンスとにより決定される。従って
装置によりその値はバラツキがある。またＡＣ電源の場
合は投入タイミングによりその値は大幅にバラツクこと
になる。2. Description of the Related Art In general, an instantaneous inrush current is generated when an electronic device such as a computer or a communication device is turned on.
This is mainly due to the charging current to the power supply device incorporated in each device or the capacitor used in the power supply circuit, and the peak current value and time constant are determined by the capacitance value of the capacitor and the impedance of the power supply circuit. You. Therefore, the value varies depending on the device. In the case of an AC power supply, the value greatly varies depending on the timing of turning on the power.
【０００３】このような突入電流は、定格電流をオーバ
ーしてメインスイッチを遮断したり、あるいは瞬間的な
電源サージノイズとして他装置へ影響を及ぼすなどの弊
害がある。特にこの弊害が大きい場合には個々に抑圧対
策が施されている。[0003] Such an inrush current has an adverse effect such as exceeding the rated current to shut off the main switch, or affecting other devices as instantaneous power surge noise. In particular, when this adverse effect is large, individual suppression measures are taken.
【０００４】複数のコンピュータあるいは通信装置など
にから構成される。システム構成の場合は、一つのメイ
ンスイッチにより複数の装置の電源をオンすると各装置
の突入電流が加算されて過大な突入電流となる。このよ
うな場合の突入電流抑圧対策として例えば特開平４−３
０４１２９号公報に記載されたものがある。図５はこの
従来例の突入電流防止電源分配器の構成を示す。[0004] It is composed of a plurality of computers or communication devices. In the case of a system configuration, when the power of a plurality of devices is turned on by one main switch, the inrush current of each device is added, resulting in an excessive inrush current. As a countermeasure against inrush current in such a case, for example, Japanese Patent Laid-Open No.
No. 04129 is disclosed. FIG. 5 shows the configuration of the inrush current prevention power distributor of this conventional example.
【０００５】図５において、突入電流防止電源分配器１
１は、商用電源または局内電源に接続されるプラグ１２
と、この電源分配器１１によって電源の分配を受ける複
数の装置１３とプラグ１２との間に設けられた複数のス
イッチ１４と、この各スイッチ１４をオン・オフさせる
複数のスイッチ１４と、この各スイッチ１４をオン・オ
フさせる複数のスイッチ駆動部１５と、この電源分配機
器１１全体のオン・オフを行うメインスイッチ１６と、
このメインスイッチ１６をオンしたときに各スイッチ１
４が所定の時間間隔をもって順次オンするように各スイ
ッチ駆動部１５を制御する制御部１７とを備えている。In FIG. 5, a rush current preventing power supply distributor 1 is shown.
1 is a plug 12 connected to a commercial power supply or an office power supply.
A plurality of switches 14 provided between the plurality of devices 13 and the plug 12 that receive power distribution by the power distributor 11; a plurality of switches 14 for turning on / off the switches 14; A plurality of switch driving units 15 for turning on / off the switch 14, a main switch 16 for turning on / off the power distribution device 11 as a whole,
When the main switch 16 is turned on, each switch 1
4 is provided with a control unit 17 for controlling each switch driving unit 15 so as to be sequentially turned on at a predetermined time interval.
【０００６】ここで、使用者がメインスイッチ１６をオ
ンにすると、制御部１７が作動し、この制御部１７は、
各スイッチ１４が数百ミリ秒から数秒の一定時間ごとに
順次オンするように各スイッチ駆動部１５を制御する。
これにより、一定時間毎に順次各装置１３に電源が投入
される。一方、使用者がメインスイッチ１６をオフにす
ると、制御部１７は、各スイッチ１４が一定時間ごとに
順次オフまたは一斉にオフするように各スイッチ駆動部
１５を制御する。Here, when the user turns on the main switch 16, the control unit 17 operates, and the control unit 17
Each switch drive unit 15 is controlled such that each switch 14 is sequentially turned on at regular intervals of several hundred milliseconds to several seconds.
As a result, the power supply to each device 13 is sequentially turned on at regular intervals. On the other hand, when the user turns off the main switch 16, the control unit 17 controls the switch driving units 15 so that the switches 14 are sequentially turned off at a predetermined time or turned off all at once.
【０００７】即ち、この突入電流防止電源分配器１１で
は、メインスイッチ１６をオンすると、制御部１７によ
ってスイッチ駆動部１５が制御されて各スイッチが所定
の時間間隔をもって順次オンし、順次各装置に電力が供
給される。これにより、各装置の突入電流が加算されて
非常に大きくなることが防止される。That is, in the inrush current preventing power distributor 11, when the main switch 16 is turned on, the switch driving unit 15 is controlled by the control unit 17, and each switch is sequentially turned on at a predetermined time interval. Power is supplied. This prevents the inrush current of each device from being added and becoming very large.
【０００８】[0008]
【発明が解決しようとする課題】このように従来例にお
いては、あらかじめ定められた時間間隔をもって順次各
装置の電源をオンしていくので、各装置の突入電流の発
生時間幅がこの時間間隔以内であれば、突入電流の加算
は避けられ過大な突入電流の発生はないが、各装置の突
入電源の時間幅が設定された時間間隔より長い場合、突
入電流は加算され過大な突入電流が発生する場合があ
る。また突入電流の時間幅が極端に短いなどの場合は不
用に電源投入時間が長くなる問題がある。As described above, in the conventional example, since the power supply of each device is sequentially turned on at a predetermined time interval, the generation time width of the rush current of each device is within this time interval. Therefore, the addition of inrush current is avoided and there is no excessive inrush current, but if the time width of the inrush power supply of each device is longer than the set time interval, the inrush current is added and excessive inrush current occurs May be. If the time width of the rush current is extremely short, there is a problem that the power-on time is unnecessarily long.
【０００９】即ち、突入電流は装置によりバラツキがあ
り、またＡＣ電源の場合はゼロクロス点からピーク点ま
での投入タイミングにより大幅にバラツキ特性があるの
で、固定した時間間隔で電源をオンする従来例では充分
に過大突入電流を抑圧できない。また不用な電源オン時
間を要するなどの問題がある。That is, the rush current varies depending on the device, and in the case of an AC power supply, there is a large variation characteristic depending on the input timing from the zero crossing point to the peak point. The excessive inrush current cannot be sufficiently suppressed. In addition, there is a problem that an unnecessary power-on time is required.
【００１０】[0010]
【課題を解決するための手段】本発明の突入電流抑圧用
の電流制御方法は、複数の装置の電源を同時にオンする
際に発生する過大突入電流を抑圧するために第１の前記
装置から第２の前記装置以降へ順次時間差を置いて自動
的に電源をオンして行く電源制御方法において、先ず第
１の前記装置の電源を手動でオンしこの時発生する突入
電源が所定の許容値をオーバしない時は即時に、また許
容値をオーバーした時はこの突入電源がピーク値を超え
前記許容値まで降下する時を待って第２の前記装置の電
源をオンし、更に第３の前記装置以降も順次同様にして
かつ自動的に電源をオンして行く方法である。According to the present invention, there is provided a current control method for suppressing inrush current according to the present invention. In order to suppress an excessive inrush current generated when a plurality of devices are turned on at the same time, the first device is used to reduce the inrush current. 2. In the power supply control method of automatically turning on the power after a time lag sequentially from the second device to the second device, first, the power of the first device is manually turned on, and the inrush power generated at this time has a predetermined allowable value. If not, immediately turn on the power of the second apparatus, and wait for the time when the rush power supply exceeds the peak value and drop to the allowable value, and turn on the power of the second apparatus. Thereafter, the power is turned on in the same manner and automatically.
【００１１】また、本発明の電源制御装置は、入力電源
を手動でオンし第１の装置へ出力するメインスイッチ
と、前記メインスイッチをオンした時に前記第１の装置
へ流れる突入電流を検出しこの突入電流が所定の許容値
をオーバーしない時は即時に、またこの許容値をオーバ
ーした時はこの突入電流がピーク値を超えてこの許容値
まで降下した時に第１の制御信号を出力する第１の電源
制御回路と、前記入力電源を前記メインスイッチを介し
入力し前記第１の制御信号によりオンし第２の装置へ出
力する第１の制御型スイッチと、前記第１の制御型スイ
ッチがオンした時に前記第２の装置へ流れる突入電源を
検出しこの突入電源が所定の許容値をオーバーしない時
は即時に、またこの許容値をオーバした時はこの突入電
流がピーク値を超えてこの許容値まで降下した時に第２
の制御信号を出力する第２の電源制御回路と、以下同様
に構成して前記入力電源を前記メインスイッチを介して
入力し第Ｎ（Ｎは整数）−１の制御信号によりオンし第
Ｎの装置へ出力する第Ｎ−１の制御型スイッチとを備え
ている。Further, the power supply control device of the present invention detects a main switch for manually turning on an input power supply to output to a first device, and detects an inrush current flowing to the first device when the main switch is turned on. The first control signal is output when the inrush current does not exceed a predetermined allowable value, and when the inrush current exceeds the allowable value, the inrush current exceeds the peak value and drops to the allowable value. A power supply control circuit, a first control type switch that inputs the input power through the main switch, is turned on by the first control signal, and outputs to the second device, and a first control type switch. When the power is turned on, the inrush power flowing to the second device is detected, and when the inrush power does not exceed a predetermined allowable value, immediately, and when the inrush power exceeds this allowable value, the inrush current exceeds the peak value. Second when dropped to the allowable value
And a second power supply control circuit for outputting a control signal of the same type. The input power supply is input through the main switch and turned on by an Nth (N is an integer) -1 control signal. And an (N-1) th control type switch for outputting to the device.
【００１２】また、各前記電源制御回路は、前記入力電
源から各前記装置へ流れる電流を検出し電圧変換して電
流検出電圧を出力する電流検出回路と、前記電流検出電
圧から前記メインスイッチあるいは前記制御型スイッチ
がオン・オフしたことを検出しパワーオン信号あるいは
パワーオフ信号を出力するオン・オフ検出回路と、前記
突入電源の許容値を設定するための基準電圧源と、前記
パワーオン信号により起動して前記電流検出電圧と前記
基準電圧とを比較し前記電流検出電圧が前記基準電圧を
オーバーしない時は許容値非検出信号をまた前記電流電
圧が前記基準電圧をオーバーした時は許容値検出信号を
出力する許容値検出回路と、前記許容値検出信号により
起動して前記電流検出電圧と前記基準電圧とを比較し前
記電流検出電圧が前記基準電圧まで降下した時に立下り
検出信号を出力する立下り検出回路と、前記許容値非検
出信号あるいは前記立下り検出信号を入力した時にこの
信号をラッチし、また前記パワーオフ信号によりこのラ
ッチをリセットするラッチ回路と、前記ラッチ回路の出
力信号を電力増幅し前記制御信号として出力する駆動回
路とを備えて構成しても良い。Each of the power supply control circuits detects a current flowing from the input power supply to each of the devices, converts the voltage and outputs a current detection voltage, and a main switch or the main switch based on the current detection voltage. An on / off detection circuit that detects that the control type switch is turned on / off and outputs a power-on signal or a power-off signal, a reference voltage source for setting an allowable value of the inrush power supply, and the power-on signal. Activate and compare the current detection voltage with the reference voltage, detect an allowable value non-detection signal when the current detection voltage does not exceed the reference voltage, and detect an allowable value when the current voltage exceeds the reference voltage. A permissible value detection circuit that outputs a signal, which is activated by the permissible value detection signal, compares the current detection voltage with the reference voltage, and compares the current detection voltage with the reference voltage. A fall detection circuit that outputs a fall detection signal when the voltage drops to the reference voltage, latches the signal when the allowable value non-detection signal or the fall detection signal is input, and latches the signal by the power-off signal. And a drive circuit that power-amplifies an output signal of the latch circuit and outputs the amplified signal as the control signal.
【００１３】また、前記電流検出回路は電流検出素子
と、この電流検出素子の出力する検出電流を増幅すると
同時に電圧に変換する電流電圧変換部と交流を直流に変
換し前記電流検出電圧を出力する整流回路とを備えて構
成しても良い。Further, the current detection circuit, a current detection element, a current-to-voltage converter for amplifying a detection current output from the current detection element and simultaneously converting the voltage into a voltage, and converting an alternating current into a direct current to output the current detection voltage. A rectifier circuit may be provided.
【００１４】また、前記電流検出回路は電流検出素子に
ホール素子を用いることでも良い。The current detection circuit may use a Hall element as a current detection element.
【００１５】また、前記基準電圧源は電圧可変型として
も良い。更に、前記電源制御回路は、前記パワーオン信
号により発光する表示灯を備えても良い。The reference voltage source may be of a variable voltage type. Further, the power supply control circuit may include an indicator light that emits light in response to the power-on signal.
【００１６】[0016]
【発明の実施の形態】次に本発明の実施の形態について
図面を参照して説明する。図１は本発明の実施形態例を
示すブロック図、図２は図１における電源制御回路のブ
ロック図、図３は図１における突入電源の波形例を示す
波形図、図４は図１における各電源装置の動作を示すタ
イミングチャート図である。Embodiments of the present invention will now be described with reference to the drawings. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram of a power supply control circuit in FIG. 1, FIG. 3 is a waveform diagram showing a waveform example of an inrush power supply in FIG. 1, and FIG. FIG. 4 is a timing chart illustrating an operation of the power supply device.
【００１７】図１において、本発明の電源制御装置１０
０は３台の電源装置２００ａ〜ｃに対して電源を投入す
る場合を示し、電源側を手動でオン・オフするメインス
イッチ１と電源装置２００ａ，ｂの給電電流を検出し電
流電圧変換して電流検出電圧１０３ａ，ｂを出力する電
流検出回路２ａ，ｂと、電流検出電圧１０３ａを入力
し、メインスイッチ１をオンした時に電源装置２００ａ
へ流れる突入電流が所定の許容値をオーバーしない時は
即時に、またこの許容値をオーバーした時は突入電流が
許容値が立下がる時点を待って制御信号１０５ａを出力
する電源制御回路３ａと、制御信号１０５ａによりオン
し電源装置２００ｂに電源を投入する制御型のスイッチ
４ａと、スイッチ４ａのオンにより発生する電流検出電
圧１０３ｂを入力し制御信号１０３ｂを出力する電圧制
御回路３ａと同一構成の電圧制御回路３ｂと、制御信号
１０３ｂによりオンし電源装置２００ｃへ電源を投入す
るスイッチ４ｂと、電源制御用電源をオン・オフする制
御用スイッチ５とで構成されている。Referring to FIG. 1, a power supply control device 10 according to the present invention is shown.
0 indicates a case where the power is turned on to the three power supplies 200a to 200c. The main switch 1 for manually turning on and off the power supply side and the power supply currents of the power supplies 200a and 200b are detected, and the current and voltage are converted. The current detection circuits 2a and 2b for outputting the current detection voltages 103a and 103b and the current detection voltage 103a are input, and the power supply 200a is turned on when the main switch 1 is turned on.
A power supply control circuit 3a that outputs a control signal 105a immediately when the inrush current flowing to the power supply does not exceed a predetermined allowable value, and when the inrush current exceeds the allowable value, waits until the inrush current falls to an allowable value; A control switch 4a that is turned on by the control signal 105a to turn on the power supply 200b, and a voltage control circuit 3a that receives a current detection voltage 103b generated by turning on the switch 4a and outputs a control signal 103b. It comprises a control circuit 3b, a switch 4b that is turned on by the control signal 103b to turn on the power to the power supply device 200c, and a control switch 5 that turns on and off the power supply for power control.
【００１８】電流検出回路２は電流検出素子としてホー
ル素子を用いこのホール素子の出力電流を増幅すると同
時に電圧に変換する電流電圧変換器と、この電圧電流変
換器の出力電圧を整流して直流の電流検出電圧１０３と
して出力する整流回路とで構成されている。The current detection circuit 2 uses a Hall element as a current detection element, amplifies the output current of the Hall element and simultaneously converts the output voltage into a voltage. And a rectifier circuit that outputs the current detection voltage 103.
【００１９】また、スイッチ４は制御信号１０５により
動作し、給電路をオン・オフする制御型のスイッチで例
えば動作速度が速く、信頼性の高いスイッチ素子に半導
体を用いたソリッドステートリレーなどを用いている。The switch 4 is operated by a control signal 105 and turns on and off a power supply path. For example, a solid state relay using a semiconductor as a highly reliable switch element with a high operating speed is used. ing.
【００２０】次に動作について説明する。入力側の電源
はＡＣあるいはＤＣ何れでも良い。先ずメインスイッチ
１を手動でオンすると電源装置２００ａへ電源が投入さ
れる。この投入時の突入電源は電流検出回路２ａにより
直流の電流検出電圧１０３ａとして検出され電源制御回
路３ａへ入力される。電源制御回路３ａは、電流検出電
圧１０３ａから突入電流が先ず許容値以下か以上かを判
断し許容値以下であれば直ちに制御信号１０５ａを出力
し、許容値以上であれば突入電流が許容値まで立下がる
のを待って制御信号１０５ａを出力する。Next, the operation will be described. The power source on the input side may be either AC or DC. First, when the main switch 1 is manually turned on, power is supplied to the power supply device 200a. The inrush power at the time of turning on is detected by the current detection circuit 2a as a DC current detection voltage 103a and input to the power supply control circuit 3a. The power supply control circuit 3a first determines from the current detection voltage 103a whether the inrush current is equal to or less than the allowable value, and immediately outputs the control signal 105a if the inrush current is equal to or less than the allowable value. After falling, the control signal 105a is output.
【００２１】この制御信号１０５ａによりスイッチ４ａ
が動作して電源装置２００ｂへ電源が投入される。この
時の突入電流は電流検出回路２６により検出され、前述
と同様にして電源制御回路３６が制御信号１０５ｂを出
力する。この制御信号１０５ｂによりスイッチｂが動作
して電源装置２００ｃへ電源が投入される。The control signal 105a causes the switch 4a
Operates to turn on the power to the power supply device 200b. The inrush current at this time is detected by the current detection circuit 26, and the power supply control circuit 36 outputs the control signal 105b in the same manner as described above. The switch b operates according to the control signal 105b, and power is supplied to the power supply device 200c.
【００２２】このようにして電源装置２００ａ〜ｃへ順
次電源が投入されるが、突入電流が許容値以下の時点で
次の電源投入が行われるので、突入電流の加算による過
大な突入電流の発生はなくなる。Power is sequentially supplied to the power supply devices 200a to 200c in this manner. When the rush current is equal to or less than the allowable value, the next power supply is performed, so that an excessive rush current is generated due to the addition of the rush current. Is gone.
【００２３】図４は各電源装置への電源投入のタイミン
グ例を示すもので、電源装置２００ａの突入電流は許容
値をオーバーして立下がり点ｔ2 で制御信号１０５ａを
出力し、電源装置２００ｂは突入電流が許容値をオーバ
ーせず、この判断をする許容値検出点ｔ1 で制御信号１
０５ｂを出力した例である。尚、αは回路遅延、スイッ
チ動作時間などを示す。従って、電源投入に要する時間
はｔ1＋ｔ2＋αとなり不用な時間は含まれず短縮され
る。通常、突入電流は時定数が１０〜２０ｍｓの微分波
形となるのでｔ1は２〜３ｍｓに設定され、ｔ2は例えば
８〜１５ｍｓの時点となる。[0023] FIG. 4 shows a timing example of power supply to each power supply, the inrush current of the power supply apparatus 200a outputs a control signal 105a to exceed the permissible value at the falling point t 2, the power supply apparatus 200b Indicates that the inrush current does not exceed the allowable value, and the control signal 1 is output at the allowable value detection point t 1 for making this determination.
05b is an example of output. Α indicates a circuit delay, a switch operation time, and the like. Accordingly, the time required for turning on the power is t 1 + t 2 + α, and the time is reduced without including unnecessary time. Normally, the rush current has a differential waveform with a time constant of 10 to 20 ms, so t 1 is set to 2 to 3 ms, and t 2 is, for example, 8 to 15 ms.
【００２４】次に図２および図３により電源制御回路３
の内部の構成および動作について説明する。Next, referring to FIG. 2 and FIG.
The internal configuration and operation of the device will be described.
【００２５】図２において、本電源制御回路３は突入電
流の許容値を判断するための基準電圧Ｖｓを発生する基
準電圧源３４と、電流検出電圧１０３の立上がり点で電
源オン・オフを検出しオン信号１０１ａあるいはオフ信
号１０１ｂを出力するオン／オフ検出回路３３と、オン
信号１０１ａにより起動して電流検出電圧１０３と基準
電圧Ｖｓとを比較し電流検出電圧１０３が基準電圧Ｖｓ
をオーバーしない時は非検出信号１０２ｂを、また電流
検出電圧１０３が基準電圧Ｖｓをオーバーした時は検出
信号１０２ａを出力する許容値検出回路３２と、検出信
号１０２ａにより起動して電流検出電圧１０３を基準電
圧Ｖｓとを比較し電流検出電圧１０３が基準電圧Ｖｓま
で降下した時に立下り検出信号１０６を出力する立下り
検出回路３１と、非検出信号１０２あるいは立下り検出
信号１０６を入力した時にこの信号をラッチし、またオ
フ信号１０１ｂによりこのラッチをリセットするラッチ
回路３５と、ラッチ回路３５の出力信号を電力増幅と制
御信号１０５として出力する駆動回路３６と、オン信号
１０１ａで点灯し電源オンを表示する表示灯３７とで構
成している。In FIG. 2, the power supply control circuit 3 detects a reference voltage source 34 for generating a reference voltage Vs for judging an allowable value of an inrush current, and detects power on / off at a rising point of the current detection voltage 103. An on / off detection circuit 33 that outputs an on signal 101a or an off signal 101b; compares the current detection voltage 103 activated by the on signal 101a with the reference voltage Vs;
When the current detection voltage 103 does not exceed the reference voltage Vs, the non-detection signal 102b is output. When the current detection voltage 103 exceeds the reference voltage Vs, the allowable value detection circuit 32 outputs the detection signal 102a. The falling detection circuit 31 compares the reference voltage Vs and outputs a falling detection signal 106 when the current detection voltage 103 drops to the reference voltage Vs, and outputs this signal when the non-detection signal 102 or the falling detection signal 106 is input. , And a driving circuit 36 for outputting an output signal of the latch circuit 35 as a power amplification and control signal 105, and lighting up with an ON signal 101a to indicate power-on. And an indicator light 37 to be turned on.
【００２６】次に図１および図２を参照して動作を説明
する。一般に突入電源（即ち、電流検出電圧１０３）は
図２に示す微分波形である。図２は直流電源の場合を示
し、突入電流はスイッチオンと同時にピーク点となり序
々に降下して定常電流となる。許容電流は突入電流が悪
影響を及ぼさない程度の値に設定するが、定常電流値よ
り若干高めに設定される。この許容値を基準電圧Ｖｓと
する。Next, the operation will be described with reference to FIGS. Generally, the rush power supply (that is, the current detection voltage 103) has a differential waveform shown in FIG. FIG. 2 shows the case of a DC power supply, and the rush current becomes a peak point at the same time as when the switch is turned on, and gradually drops to a steady current. The allowable current is set to a value that does not adversely affect the inrush current, but is set slightly higher than the steady-state current value. This allowable value is defined as a reference voltage Vs.
【００２７】先ず、オン／オフ検出回路３３はスイッチ
オンと同時に突入電流がダッシュする時点で電源のオン
を検出してオン信号１０１ａを出力する。許容値検出回
路３２はこのオン信号１０１ａを入力し、図３に示すｔ
1 （数ｍｓ）後に電源検出電圧１０３と基準電圧Ｖｓと
を比較し突入電流が許容値をオーバーしたか否かを判定
し、許容値をオーバーした時は検出信号１０２ａを出力
する。First, the on / off detection circuit 33 detects the power on when the rush current dashes simultaneously with the switch on, and outputs an on signal 101a. The permissible value detection circuit 32 receives the ON signal 101a, and outputs the t signal shown in FIG.
One (several ms) later, the power supply detection voltage 103 is compared with the reference voltage Vs to determine whether or not the inrush current has exceeded an allowable value. If the inrush current has exceeded the allowable value, a detection signal 102a is output.
【００２８】立下り検出回路３１は、この検出信号１０
２ａを入力した時点から電流検出電圧１０３と基準電圧
Ｖｓとを比較する動作を開始し、電流検出電圧１０３が
ピーク点を超えて降下し基準電圧Ｖｓ、即ち許容値まで
立下がった時点、即ち図２に示すｔ2時点で立下り検出
信号１０６を出力する。The falling detection circuit 31 outputs the detection signal 10
2a, the operation of comparing the current detection voltage 103 with the reference voltage Vs is started, and when the current detection voltage 103 drops beyond the peak point and falls to the reference voltage Vs, that is, the allowable value, that is, FIG. At time t 2 shown in FIG. 2 , the falling detection signal 106 is output.
【００２９】この立下り検出信号１０６はパルス信号で
あるのでラッチ回路３５でラッチし、ステップ信号とし
て駆動回路３６へ出力する。駆動回路３６で増幅しスイ
ッチ４を駆動する制御信号１０５として出力する。Since the falling detection signal 106 is a pulse signal, it is latched by the latch circuit 35 and output to the drive circuit 36 as a step signal. The signal is amplified by the drive circuit 36 and output as a control signal 105 for driving the switch 4.
【００３０】一方、許容値検出回路３２で突入電流が許
容値をオーバーしない時、即ち、図２に示す点線の時は
非検出信号１０２ｂが出力される。この非検出信号１０
２ｂはパルス信号であるのでラッチ回路３５でラッチさ
れ、突入電流が許容値をオーバーした時と同様に駆動回
路３６を介し制御信号１０５として出力される。On the other hand, when the inrush current does not exceed the allowable value in the allowable value detection circuit 32, that is, when the dotted line shown in FIG. 2 is used, the non-detection signal 102b is output. This non-detection signal 10
Since 2b is a pulse signal, it is latched by the latch circuit 35 and is output as the control signal 105 via the drive circuit 36 in the same manner as when the inrush current exceeds the allowable value.
【００３１】尚、オン／オフ検出回路３３は、電源オン
で出力するオン信号１０１ａにより電源オン状態を表示
する表示灯を点灯する。また電源オフとなった時に出力
するオフ信号１０１ｂにより、ラッチ回路３５のラッチ
状態をリセットする。The on / off detection circuit 33 turns on an indicator lamp for indicating the power-on state according to the on-signal 101a output when the power is turned on. The latch state of the latch circuit 35 is reset by an off signal 101b output when the power is turned off.
【００３２】[0032]
【発明の効果】以上説明したように本発明の突入電流抑
圧用の電源制御装置は、突入電流の許容値を設定し、突
入電流がこの許容値をオーバーしない時は即時に、また
許容値をオーバーした時は許容値まで立下がった時点で
次の電源装置の電源を順次オンして行うようにしたの
で、複数の電源装置の電源を同時にオンする時に突入電
流が加算されることがなく、過大な突入電流の発生が確
実に抑圧され、かつ電源オンに要する時間が不要に長く
かかることがないという効果がある。As described above, the power supply control device for inrush current suppression according to the present invention sets the allowable value of the inrush current, and immediately sets the allowable value when the inrush current does not exceed the allowable value. When the power exceeds the allowable value, the power supply of the next power supply is turned on sequentially when the power supply falls to the allowable value, so that the rush current is not added when turning on the power supply of a plurality of power supplies at the same time, There is an effect that generation of an excessive rush current is reliably suppressed and the time required for turning on the power is not unnecessarily long.
【図１】本発明の実施の形態例を示すブロック図であ
る。FIG. 1 is a block diagram showing an embodiment of the present invention.
【図２】図１における電源制御回路の構成を示すブロッ
ク図である。FIG. 2 is a block diagram showing a configuration of a power supply control circuit in FIG.
【図３】図１における突入電流の波形を示す波形図であ
る。FIG. 3 is a waveform diagram showing a waveform of an inrush current in FIG.
【図４】図１における動作を説明するタイミングチャー
ト図である。FIG. 4 is a timing chart illustrating the operation in FIG. 1;
【図５】従来例を示すブロック図である。FIG. 5 is a block diagram showing a conventional example.
１ メインスイッチ ２ａ，ｂ 電流検出回路 ３ａ，ｂ 電源制御回路 ４ａ，ｂ スイッチ ５ 制御用スイッチ ３１ 立下り検出回路 ３２ 許容値検出回路 ３３ オン／オフ検出回路 ３４ 基準電圧源 ３５ ラッチ回路 ３６ 駆動回路 ３７ 表示灯 １００ 電源制御装置 ２００ａ，ｂ，ｃ 電源装置 DESCRIPTION OF SYMBOLS 1 Main switch 2a, b Current detection circuit 3a, b Power control circuit 4a, b switch 5 Control switch 31 Fall detection circuit 32 Allowable value detection circuit 33 ON / OFF detection circuit 34 Reference voltage source 35 Latch circuit 36 Drive circuit 37 Indicator 100 Power supply control device 200a, b, c Power supply device
Claims (7)
発生する過大突入電流を抑圧するために第１の前記装置
から第２の前記装置以降へ順次時間差を置いて自動的に
電源をオンして行く電源制御方法において、先ず第１の
前記装置の電源を手動でオンしこの時発生する突入電源
が所定の許容値をオーバしない時は即時に、また許容値
をオーバーした時はこの突入電源がピーク値を超え前記
許容値まで降下する時を待って第２の前記装置の電源を
オンし、更に第３の前記装置以降も順次同様にしてかつ
自動的に電源をオンして行くことを特徴とする突入電流
抑圧用の電源制御方法。1. A power supply is automatically turned on from a first device to a second device and thereafter with a time lag in order to suppress an excessive rush current generated when powers of a plurality of devices are turned on at the same time. In the power supply control method, the power of the first device is manually turned on, and immediately when the inrush power generated at this time does not exceed a predetermined allowable value, and when the inrush power exceeds the allowable value, the inrush power occurs. Waiting for the time when the power supply exceeds the peak value and falls to the permissible value, turning on the power of the second apparatus, and turning on the power in the same manner and automatically after the third apparatus. A power supply control method for inrush current suppression, comprising:
力するメインスイッチと、前記メインスイッチをオンし
た時に前記第１の装置へ流れる突入電流を検出しこの突
入電流が所定の許容値をオーバーしない時は即時に、ま
たこの許容値をオーバーした時はこの突入電流がピーク
値を超えてこの許容値まで降下した時に第１の制御信号
を出力する第１の電源制御回路と、前記入力電源を前記
メインスイッチを介し入力し前記第１の制御信号により
オンし第２の装置へ出力する第１の制御型スイッチと、
前記第１の制御型スイッチがオンした時に前記第２の装
置へ流れる突入電源を検出しこの突入電源が所定の許容
値をオーバーしない時は即時に、またこの許容値をオー
バした時はこの突入電流がピーク値を超えてこの許容値
まで降下した時に第２の制御信号を出力する第２の電源
制御回路と、以下同様に構成して前記入力電源を前記メ
インスイッチを介して入力し第Ｎ（Ｎは整数）−１の制
御信号によりオンし第Ｎの装置へ出力する第Ｎ−１の制
御型スイッチとを備えることを特徴とする突入電流抑圧
用の電源制御装置。2. A main switch for manually turning on an input power supply to output to a first device, and a rush current flowing to the first device when the main switch is turned on is detected. A first power supply control circuit for outputting a first control signal immediately when not exceeding the allowable value, and when the inrush current exceeds the peak value and drops to the allowable value when exceeding the allowable value, A first control-type switch that inputs an input power through the main switch, is turned on by the first control signal, and outputs to a second device;
When the first control-type switch is turned on, an inrush power flowing to the second device is detected, and if the inrush power does not exceed a predetermined allowable value, it is immediately detected. A second power supply control circuit that outputs a second control signal when the current exceeds the peak value and falls to this allowable value; (N is an integer) a power control device for inrush current suppression, comprising: an (N-1) th control-type switch which is turned on by a (-1) control signal and outputs to an Nth device.
ら各前記装置へ流れる電流を検出し電圧変換して電流検
出電圧を出力する電流検出回路と、前記電流検出電圧か
ら前記メインスイッチあるいは前記制御型スイッチがオ
ン・オフしたことを検出しパワーオン信号あるいはパワ
ーオフ信号を出力するオン・オフ検出回路と、前記突入
電源の許容値を設定するための基準電圧源と、前記パワ
ーオン信号により起動して前記電流検出電圧と前記基準
電圧とを比較し前記電流検出電圧が前記基準電圧をオー
バーしない時は許容値非検出信号をまた前記電流電圧が
前記基準電圧をオーバーした時は許容値検出信号を出力
する許容値検出回路と、前記許容値検出信号により起動
して前記電流検出電圧と前記基準電圧とを比較し前記電
流検出電圧が前記基準電圧まで降下した時に立下り検出
信号を出力する立下り検出回路と、前記許容値非検出信
号あるいは前記立下り検出信号を入力した時にこの信号
をラッチしまた前記パワーオフ信号によりこのラッチを
リセットするラッチ回路と、前記ラッチ回路の出力信号
を電力増幅し前記制御信号として出力する駆動回路とを
備えることを特徴とする請求項２記載の突入電流抑圧用
の電源制御装置。3. Each of the power supply control circuits detects a current flowing from the input power supply to each of the devices, converts the voltage to output a current detection voltage, and outputs a current detection voltage from the current detection voltage to the main switch or the main switch. An on / off detection circuit that detects that the control type switch is turned on / off and outputs a power-on signal or a power-off signal, a reference voltage source for setting an allowable value of the inrush power supply, and the power-on signal. Activate and compare the current detection voltage with the reference voltage, detect an allowable value non-detection signal when the current detection voltage does not exceed the reference voltage, and detect an allowable value when the current voltage exceeds the reference voltage. An allowable value detection circuit that outputs a signal, and the current detection voltage is activated by the allowable value detection signal, and the current detection voltage is compared with the reference voltage. A fall detection circuit that outputs a fall detection signal when the voltage drops to a reference voltage; latches the signal when the allowable value non-detection signal or the fall detection signal is input; and resets the latch by the power-off signal 3. The power supply control device for inrush current suppression according to claim 2, further comprising a latch circuit that performs power amplification of an output signal of the latch circuit and outputs the control signal as the control signal.
の電流検出素子の出力する検出電流を増幅すると同時に
電圧に変換する電流電圧変換部と交流を直流に変換し前
記電流検出電圧を出力する整流回路とを備えることを特
徴とする請求項３記載の突入電流抑圧用の電源制御装
置。4. The current detecting circuit, a current detecting element, a current-to-voltage converter for amplifying a detection current output from the current detecting element and simultaneously converting the voltage into a voltage, and converting an alternating current into a direct current to output the current detection voltage. The power supply control device for inrush current suppression according to claim 3, further comprising a rectifier circuit.
ル素子を用いることを特徴とする請求項３あるいは４記
載の突入電流抑圧用の電源制御装置。5. The power supply control device according to claim 3, wherein said current detection circuit uses a Hall element as a current detection element.
を特徴とする請求項３、４あるいは５記載の突用電流抑
圧用の電源制御装置。6. The power supply control device for suppressing abrupt current according to claim 3, wherein the reference voltage source is of a variable voltage type.
灯を備えることを特徴とする請求項３、４、５あるいは
６記載の突入電流抑圧用の電源制御装置。7. The power supply control device for inrush current suppression according to claim 3, further comprising an indicator light that emits light in response to the power-on signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04030398A JP3267232B2 (en) | 1998-02-23 | 1998-02-23 | Power supply control method and power supply control device for inrush current suppression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04030398A JP3267232B2 (en) | 1998-02-23 | 1998-02-23 | Power supply control method and power supply control device for inrush current suppression |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11243640A true JPH11243640A (en) | 1999-09-07 |
| JP3267232B2 JP3267232B2 (en) | 2002-03-18 |
Family
ID=12576861
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04030398A Expired - Fee Related JP3267232B2 (en) | 1998-02-23 | 1998-02-23 | Power supply control method and power supply control device for inrush current suppression |
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| EP1106468A1 (en) * | 1999-12-07 | 2001-06-13 | Siemens Aktiengesellschaft | Method and circuit arrangement for avoiding undesired response of track circuits |
| JP2008029186A (en) * | 2006-06-19 | 2008-02-07 | Ricoh Co Ltd | Electronic device and starting method therefor |
| JP2008204930A (en) * | 2007-02-19 | 2008-09-04 | Yoshimichi Hirashiro | Capacitor system |
| JP2009119251A (en) * | 2007-10-22 | 2009-06-04 | Panasonic Corp | Toilet seat device and toilet device equipped therewith |
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| JP2009223427A (en) * | 2008-03-13 | 2009-10-01 | Spansion Llc | Semiconductor system and its activation method |
| US10234884B2 (en) | 2014-06-13 | 2019-03-19 | Horiba Stec, Co., Ltd. | Power supply apparatus of fluid control and measurement system |
| JP2016015872A (en) * | 2014-06-13 | 2016-01-28 | 株式会社堀場エステック | Power supply apparatus for fluid control and measurement system |
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| JPWO2021171579A1 (en) * | 2020-02-28 | 2021-09-02 | ||
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