JPH0522245B2 - - Google Patents
Info
- Publication number
- JPH0522245B2 JPH0522245B2 JP58128835A JP12883583A JPH0522245B2 JP H0522245 B2 JPH0522245 B2 JP H0522245B2 JP 58128835 A JP58128835 A JP 58128835A JP 12883583 A JP12883583 A JP 12883583A JP H0522245 B2 JPH0522245 B2 JP H0522245B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- monitoring
- voltage
- output voltage
- threshold
- 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.)
- Expired - Lifetime
Links
- 238000012544 monitoring process Methods 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 description 13
- 230000005856 abnormality Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 101100067427 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FUS3 gene Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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
- G05F1/577—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 for plural loads
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Voltage And Current In General (AREA)
Description
【発明の詳細な説明】
(a) 発明の技術分野
本発明は電気機器における電源システム例えば
自動試験システムにおいて実施する被試験体への
電源供給システムの制御と保安手法の改良に関す
る。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a power supply system for electrical equipment, such as an improvement in a control and security method for a power supply system to a test object implemented in an automatic test system.
(b) 技術の背景
半導体エージング装置、IC自動試験機、プリ
ント板／電子装置の自動試験システムにおける被
試験体への電源供給装置等において、運転中に電
源又は、被試験体に異常が発生した場合、過電
圧、過電流等から被試験体を保護する。異常状
態の他への波及を防止する。オペレータへの通
知あるいは自動復旧処理等の機能の要求が高まつ
ている。特に無人運転や高価なLSi等の試験機に
おいて重視されている。(b) Technical background An abnormality occurs in the power supply or the device under test during operation in semiconductor aging equipment, automatic IC testing machines, automatic test systems for printed circuit boards/electronic devices, etc., which supply power to the device under test. Protect the device under test from overvoltage, overcurrent, etc. Prevent abnormal conditions from spreading to other areas. There is an increasing demand for functions such as operator notification and automatic recovery processing. This is especially important for unmanned operation and expensive test machines such as LSi.
電気機器における電源は、通常商用交流電源を
入力として機器動作のために必要な交流または／
および直流電圧を供給する他電源および負荷に発
生する異常にも対応出来る安定な運転を確保する
ため各電圧ソースおよび冷却等の付属ユニツトを
含めての順序投入切断制御および温湿度等環境を
含めた構成各機能状態の検出に伴う条件制御を行
うようなシステムが構成されている。 The power source for electrical equipment is usually a commercial AC power source, which is used as an input to supply the AC or/and
In order to ensure stable operation that can respond to abnormalities that occur in other power supplies and loads that supply DC voltage, sequential on/off control including each voltage source and attached units such as cooling, and environmental conditions such as temperature and humidity are implemented. A system is configured to perform condition control in accordance with the detection of each functional state.
(e) 従来技術と問題点
従来より電源システムでは上記の複数ユニツト
を上位の主制御部例えばサービスプロセツサの操
作卓において集中して統轄制御する手段が慣用さ
れている。一方近年半導体技術特に集積化技術の
発達に伴い複雑且大規模な論理回路を備えた高集
積回路素子（LSI）が低コストで提供されるよう
になり、例えばマイクロプロセツサまたは256キ
ロビツト（Kb）メモリのような規模に達すると
共に顧客の注文仕様に基くLSIが短期間で提供さ
れるようになり、これ等を利用する電気機器は
益々多種に及ぶ。このためLSI、電気機器または
これ等の試験を行うための電源も益々複雑な組合
せを必要とするようになつた。従来の電源システ
ムでは予め設定した出力電圧と予め設定した投入
切断順序に従つて制御出来るものはあつた。しか
し電源の故障や被試験体の異常により、電源が正
常に運転されていなくても主制御部で把握されて
いないため電源または／および電気機器、被試験
体等を損傷する場合が存在したり、試験をそのま
ま続行してしまうことがあつた。(e) Prior Art and Problems Conventionally, in power supply systems, it has been customary to centrally control the plurality of units mentioned above in a higher-level main control unit, such as a service processor console. On the other hand, in recent years, with the development of semiconductor technology, especially integration technology, highly integrated circuit devices (LSI) equipped with complex and large-scale logic circuits have become available at low cost.For example, microprocessors or 256 kilobit (Kb) As LSIs reach a scale similar to that of memory, LSIs based on customer-ordered specifications can be provided in a short period of time, and the variety of electrical devices that utilize these devices is increasing. For this reason, power supplies for testing LSIs, electrical equipment, and the like have come to require increasingly complex combinations. Some conventional power supply systems can be controlled according to a preset output voltage and a preset turn-on/off order. However, even if the power supply is not operating normally due to a failure of the power supply or an abnormality in the test object, the main control unit is not aware of this and may cause damage to the power supply, electrical equipment, test object, etc. , there were cases where the test continued as it was.
(d) 発明の目的
本発明の目的は上記の欠点を除去するため複数
の電源ユニツトをGP−1B／1EEE−IB／IEC−
1Bのような標準インタフエースバスに連結し、
各電源ユニツトにインタフエース手段を介して制
御する手段やデイジタル設定する手段および監視
手段等を備え、主制御部よりの制御信号によつて
各電源ユニツトを任意に作動せしめると共に、デ
イジタル設定手段によつて、設定したしきい値を
監視せしめて異常発生を通知させるリモート制御
を実現する電源回路の制御および監視方法を提供
しようとするものである。(d) Purpose of the Invention The purpose of the present invention is to eliminate the above-mentioned drawbacks by providing a GP-1B/1EEE-IB/IEC-
Connects to a standard interface bus such as 1B,
Each power supply unit is equipped with means for controlling via interface means, means for digital setting, monitoring means, etc., and each power supply unit can be operated arbitrarily by control signals from the main control section, and can be controlled by digital setting means. Therefore, it is an object of the present invention to provide a method for controlling and monitoring a power supply circuit that realizes remote control that monitors a set threshold value and notifies the occurrence of an abnormality.
(e) 発明の構成
上記目的は本発明により主制御部及びそれより
それぞれ別個の制御が行なわれる複数個の電源ユ
ニツトよりなり、各電源ユニツトはユニツト制御
部及び電源供給部より構成され、ユニツト制御部
には主制御部よりの電源の投入切断、出力電圧値
設定、過電流、過電圧、減電圧監視のためのデイ
ジタル制御信号を中継入力するインタフエース手
段及び該手段を介する制御信号により制御される
電源の投入切断のための投入切断制御手段、基準
電圧設定保持手段、過電流しきい値と出力電流を
比較監視する出力電流監視手段、過電圧しきい値
と出力電圧を比較監視する過電圧監視手段及び電
圧下限しきい値と減電圧を比較する減電圧監視手
段が設けられ、電源供給部には出力電圧制御手段
及び出力電流検出手段が設けられ、出力電圧制御
手段は投入切断制御手段及び基準電圧設定保持手
段により電源の投入と切断及び出力電圧の保持が
制御され、出力電流検出手段による電流値がしき
い値を超えた際の出力電流監視手段よりの検出信
号及び出力電圧がしきい値を超えた際の過電圧監
視手段及び減電圧監視手段よりの検出信号はイン
タフエース手段を介して主制御部に送出されるこ
とを特徴とする電源回路の制御および監視方法に
よつて達成される。(e) Structure of the Invention The above object is to provide a main control section and a plurality of power supply units which are individually controlled by the main control section, each power supply unit consisting of a unit control section and a power supply section, The section is controlled by an interface means for relaying digital control signals from the main control section for turning on/off the power, setting the output voltage value, and monitoring overcurrent, overvoltage, and reduced voltage, and the control signal via the means. A power on/off control means for turning on and off the power supply, a reference voltage setting holding means, an output current monitoring means for comparing and monitoring the overcurrent threshold and the output current, an overvoltage monitoring means for comparing and monitoring the overvoltage threshold and the output voltage, and A voltage reduction monitoring means for comparing the voltage lower limit threshold with the voltage reduction is provided, and the power supply section is provided with an output voltage control means and an output current detection means, and the output voltage control means is provided with a power supply/disconnection control means and a reference voltage setting means. The holding means controls turning on and off the power and holding the output voltage, and when the current value by the output current detecting means exceeds the threshold, the detection signal and output voltage from the output current monitoring means exceed the threshold. This is accomplished by a method for controlling and monitoring a power supply circuit characterized in that the detection signals from the overvoltage monitoring means and the undervoltage monitoring means are sent to the main control unit via the interface means.
(f) 発明の実施例
以下図面を参照しつゝ本発明の一実施例につい
て説明する。第１図は本発明の一実施例における
電源回路の制御方法による概念図および第２図は
その電源ユニツトにおけるブロツク図を示す。図
において１は主制御部、２ａ，ｂ…ｎは電源ユニ
ツト、３ａ，ｂ…ｎは負荷、更に２１，２１ａ，
ｂ…ｎはユニツト制御部、２２，２２ａ，ｂ…ｎ
は電源供給部、２３は整流平滑回路、２４ａ〜ｅ
は演算増幅器、２５はインターフエース手段、２
６は投入切断制御手段、２７ａ〜ｄはデイジタル
アナログ変換器（DAC）、２８ａ〜ｃはゲート回
路こゝではアンド回路、２９ａ〜ｃはマスクレジ
スタ、Ｔは電源変成器、Ｑは電流制御素子こゝで
はNPNトランジスタおよびＲ１は電流検出抵抗
である。(f) Embodiment of the invention An embodiment of the invention will be described below with reference to the drawings. FIG. 1 is a conceptual diagram of a power supply circuit control method according to an embodiment of the present invention, and FIG. 2 is a block diagram of the power supply unit. In the figure, 1 is the main control unit, 2a, b...n are power supply units, 3a, b...n are loads, and further 21, 21a,
b...n is a unit control section, 22, 22a, b...n
23 is a rectifier and smoothing circuit; 24a to 24e are power supply units;
is an operational amplifier, 25 is an interface means, 2
Reference numeral 6 indicates a power supply/disconnection control means, 27a to d are digital analog converters (DACs), 28a to 28c are gate circuits, here are AND circuits, 29a to 29c are mask registers, T is a power supply transformer, and Q is a current control element. In 2, the NPN transistor and R1 are current detection resistors.
本実施例では主制御部１よりの複数ビツトによ
るデイジタル制御信号が第１手段のインタフエー
ス手段２５に入力される。インタフエース手段２
５は該制御信号を解読／中継して対応する第２〜
６の各手段に制御信号を印加し、第４〜６手段よ
りの通知信号を主制御部１へ中継送出する。電源
の投入切断はインタフエース手段２５より第２手
段の投入切断制御手段２６を介して実行される。
電源供給部２２はAC入力を受電しＴを介して得
た２次電圧を整流平滑回路２３により得た粗直流
電圧をＱに入力し、その出力電圧と第３手段とし
ての基準電圧設定保持手段におけるDAC２７ａ
にデイジタル設定される基準電圧との誤差を比較
して増幅する演算増幅器２４ａの出力信号をＱの
ベースに帰還し、その誤差出力が０に近付くよう
制御して出力電圧をDAC２７により基準電圧に
従う定電圧電源として作動する。尚演算増幅器２
４ａは主制御部１からの制御信号を受信する第２
手段の投入切断制御手段２６の投入切断信号によ
つて制御されるゲート機能を有し切断信号が印加
されたときは出力を低レベルに転位してＱのベー
スを抑止して出力電圧を０に遮断する。DAC２
７ａは上記の基準電圧値を入力されるデジタル信
号に従つて設定且連続的に保持送出するものとす
る。演算増幅器２４ｂ，ｃを中心とする部分は第
４手段の出力電流監視手段である。Ｒ１により得
られる出力電流に伴う降下電圧を演算増幅器２４
ｂにより接地電位を基準とする出力電圧に変換し
た後演算増幅器２４ｃに入力して、他方主制御部
１よりDAC２７ｂに設定されるデジタル信号に
よる電流のしきい値電圧と比較し、演算増幅器２
４ｃの出力電圧が過電流を検出したときはアンド
回路２８ａを介してその旨主制御部１へ通知す
る。尚この通知動作は主制御部１よりのマスクレ
ジスタ２９ａによるセツト信号の設定による。演
算増幅器２４ｂを中心とする部分は第５手段の過
電圧監視手段である。こゝでもDAC２７ｃに設
定されるデイジタル信号による出力電圧の上限し
きい値電圧と電源供給部２２の出力電圧とを演算
増幅器２４ｄにより比較してその出力電圧がしき
い値電圧を上廻る結果が得られたときは同様にア
ンド回路２８ｂを介して過電圧を主制御部１へ通
知する。次に演算増幅器２４ｅを中心とする部分
は第６手段の減電圧監視手段である。DAC２７
ｄに設定されるデジタル信号による出力電圧の下
限しきい値電圧と電圧供給部２２の出力電圧とを
演算増幅器２４ｅにより比較してその出力電圧が
しきい値電圧を下廻る結果が得られたときはアン
ド回路２８ｃを介して減電圧を主制御部１へ通知
する。本実施例では以上のように構成されている
ので主制御部１は複数の電源ユニツト２ａ〜ｎに
対し出力電圧の投入切断制御の他、出力電圧値、
過電圧、減電圧および過電流のための各しきい値
を任意に設定して負荷３に正常な電圧・電流を供
給することが出来、電源や負荷の異常を電源ユニ
ツト２ａ〜ｎからの通知信号によつて直ちに認識
することが出来るのでその対応策を効率的に実行
することが可能な電源回路の制御および監視方法
が得られる。通知信号による操作者への認識は勿
論ランプ点燈や文字表示または音響／音声等によ
り容易に実現出来る。また上記はシリーズドロツ
バ方式による電源供給部としたがスイツチング方
式に適用しても同様に実現出来る。尚DAC２７
ａ〜ｄによるしきい値の設定は必要領域について
全値設定したが、しきい値の中心値を固定記憶と
して設定しておき補正値をデジタル設定により入
力し演算ユニツトを設けて加減算を実行せしめて
各演算増幅器２４ｃ〜ｅの比較基準値としても同
様に実現出来ることはいう迄もない。尚演算はデ
ジタル方式による他別途演算増幅器によるアナロ
グ演算でも良い。 In this embodiment, a multi-bit digital control signal from the main control section 1 is input to the interface means 25 of the first means. Interface means 2
5 decodes/relays the control signal to the corresponding second to
A control signal is applied to each of the six means, and notification signals from the fourth to sixth means are relayed to the main control section 1. Power on/off is executed by the interface means 25 via the power on/off control means 26 of the second means.
The power supply unit 22 receives an AC input and inputs the secondary voltage obtained through T to the coarse DC voltage obtained by the rectifying and smoothing circuit 23 to Q, and outputs the output voltage and a reference voltage setting holding means as a third means. DAC27a in
The output signal of the operational amplifier 24a, which compares and amplifies the error with a reference voltage digitally set in Operates as a voltage power supply. Furthermore, operational amplifier 2
4a is a second
It has a gate function controlled by the closing signal of the closing/cutting control means 26 of the means, and when the cutting signal is applied, the output is shifted to a low level and the base of Q is suppressed to reduce the output voltage to 0. Cut off. DAC2
The reference voltage value 7a is set and continuously held and transmitted in accordance with the input digital signal. The portion centered around the operational amplifiers 24b and 24c is a fourth means for monitoring output current. The voltage drop accompanying the output current obtained by R1 is transferred to the operational amplifier 24.
After converting the output voltage to an output voltage based on the ground potential by b, the output voltage is input to the operational amplifier 24c, and compared with the threshold voltage of the current according to the digital signal set to the DAC 27b by the main control unit 1, the operational amplifier 2
When the output voltage of 4c detects an overcurrent, the main controller 1 is notified of this via the AND circuit 28a. This notification operation is based on the setting of a set signal by the mask register 29a from the main control section 1. The portion centered around the operational amplifier 24b is a fifth means of overvoltage monitoring means. Here, too, the operational amplifier 24d compares the upper limit threshold voltage of the output voltage based on the digital signal set in the DAC 27c with the output voltage of the power supply section 22, and the result that the output voltage exceeds the threshold voltage is obtained. When the overvoltage is detected, the main controller 1 is similarly notified of the overvoltage via the AND circuit 28b. Next, the portion centered around the operational amplifier 24e is a sixth means, a reduced voltage monitoring means. DAC27
When the lower limit threshold voltage of the output voltage according to the digital signal set in d is compared with the output voltage of the voltage supply section 22 by the operational amplifier 24e, and the result that the output voltage is lower than the threshold voltage is obtained. notifies the main control unit 1 of the voltage reduction via the AND circuit 28c. Since the present embodiment is configured as described above, the main control section 1 not only controls the output voltage on/off for the plurality of power supply units 2a to 2n, but also controls the output voltage value,
It is possible to supply normal voltage and current to the load 3 by arbitrarily setting each threshold value for overvoltage, undervoltage, and overcurrent, and to receive notification signals from power supply units 2a to 2n of abnormalities in the power supply or load. Therefore, a method for controlling and monitoring a power supply circuit can be obtained, in which countermeasures can be efficiently implemented since the method can be immediately recognized. Recognition to the operator by a notification signal can of course be easily realized by lighting a lamp, displaying characters, sound/voice, etc. In addition, although the power supply unit described above is based on the series drop-down type, it can be similarly realized by applying it to the switching type. Furthermore, DAC27
Threshold values a to d are set to all values for the required area, but the center value of the threshold value is set as a fixed memory, the correction value is inputted by digital setting, and an arithmetic unit is provided to perform addition and subtraction. It goes without saying that this can also be similarly realized as a comparison reference value for each of the operational amplifiers 24c to 24e. In addition to digital calculations, analog calculations using a separate operational amplifier may be used.
(g) 発明の効果
以上説明したように本発明によれば従来電源ユ
ニツトの組合せ／出力電圧・電流／投入切断順序
の変更に伴う対応について煩わしかつた電源ユニ
ツトの制御も主制御部からの設定に従つて容易に
変更出来、正常な電源の運転が実現出来る上その
運転状態が主制御部において正確に把握出来るの
で電源または／および負荷となつている電気機
器、被試験体等の損傷が少い電源回路の制御およ
び監視方法が得られる。(g) Effects of the Invention As explained above, according to the present invention, the control of the power supply unit, which conventionally required troublesome responses to changes in the combination of power supply units, output voltage, current, and turning on/off order, can be set from the main control unit. Accordingly, changes can be made easily, normal operation of the power supply can be realized, and the operating status can be accurately grasped in the main control unit, so there is less damage to the power supply and/or the electrical equipment serving as the load, the test object, etc. A method for controlling and monitoring power supply circuits is obtained.
第１図は本発明の一実施例における電源回路の
制御および監視方法による概念図および第２図は
その電源ユニツトのブロツク図である。図におい
て１は主制御部、２，２ａ〜ｎは電源ユニツト、
３ａ〜ｎは負荷、２１，２１ａ〜ｎはユニツト制
御部、２２，２２ａ〜ｎは電源供給部、２４ａ〜
ｅは演算増幅器、２５はインタフエース手段、２
６は投入切断制御手段、２７ａ〜ｄはデジタルア
ナログ変換器（DAC）、２８ａ〜Ｃはゲート回
路、２９ａ〜Ｃはマスクレジスタ、Ｑは電流制御
素子およびＲ１は電流検出抵抗である。
FIG. 1 is a conceptual diagram of a power supply circuit control and monitoring method according to an embodiment of the present invention, and FIG. 2 is a block diagram of the power supply unit. In the figure, 1 is the main control unit, 2, 2a to n are power supply units,
3a-n are loads, 21, 21a-n are unit control sections, 22, 22a-n are power supply sections, 24a--
e is an operational amplifier, 25 is an interface means, 2
Reference numeral 6 designates an on-off control means, 27a-d digital-to-analog converters (DAC), 28a-C gate circuits, 29a-C mask registers, Q a current control element, and R1 a current detection resistor.
Claims (1)
行なわれる複数個の電源ユニツトよりなり、各電
源ユニツトはユニツト制御部及び電源供給部より
構成され、ユニツト制御部には主制御部よりの電
源の投入切断、出力電圧値設定、過電流、過電
圧、減電圧監視のためのデイジタル制御信号を中
継入力するインタフエース手段及び該手段を介す
る制御信号により制御される電源の投入切断のた
めの投入切断制御手段、基準電圧設定保持手段、
過電流しきい値と出力電流を比較監視する出力電
流監視手段、過電圧しきい値と出力電圧を比較監
視する過電圧監視手段及び電圧下限しきい値と減
電圧を比較する減電圧監視手段が設けられ、電源
供給部には出力電圧制御手段及び出力電流検出手
段が設けられ、出力電圧制御手段は投入切断制御
手段及び基準電圧設定保持手段により電源の投入
と切断及び出力電圧の保持が制御され、出力電流
検出手段による電流値がしきい値を超えた際の出
力電流監視手段よりの検出信号及び出力電圧がし
きい値を超えた際の過電圧監視手段及び減電圧監
視手段よりの検出信号はインタフエース手段を介
して主制御部に送出されることを特徴とする電源
回路の制御および監視方法。1 Consists of a main control section and a plurality of power supply units each controlled separately from the main control section, each power supply unit is composed of a unit control section and a power supply section, and the unit control section is supplied with power from the main control section. Interface means for relaying and inputting digital control signals for disconnection, output voltage value setting, overcurrent, overvoltage, and undervoltage monitoring, and on/off control means for turning on/off power controlled by control signals via the means , reference voltage setting holding means;
Output current monitoring means for comparing and monitoring the overcurrent threshold and the output current, overvoltage monitoring means for comparing and monitoring the overvoltage threshold and the output voltage, and reduced voltage monitoring means for comparing the voltage lower limit threshold and the reduced voltage are provided. The power supply section is provided with an output voltage control means and an output current detection means, and the output voltage control means is controlled to turn on and off the power and hold the output voltage by the on/off control means and the reference voltage setting holding means. The detection signal from the output current monitoring means when the current value by the current detection means exceeds the threshold and the detection signal from the overvoltage monitoring means and the undervoltage monitoring means when the output voltage exceeds the threshold are interfaced. A method for controlling and monitoring a power supply circuit, characterized in that the information is sent to a main control unit via a means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12883583A JPS6020217A (en) | 1983-07-15 | 1983-07-15 | Controlling and monitoring method of electric power source circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12883583A JPS6020217A (en) | 1983-07-15 | 1983-07-15 | Controlling and monitoring method of electric power source circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6020217A JPS6020217A (en) | 1985-02-01 |
| JPH0522245B2 true JPH0522245B2 (en) | 1993-03-29 |
Family
ID=14994574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12883583A Granted JPS6020217A (en) | 1983-07-15 | 1983-07-15 | Controlling and monitoring method of electric power source circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020217A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0517713U (en) * | 1991-08-19 | 1993-03-05 | 三洋電機株式会社 | Regulator circuit |
| DE4234421A1 (en) * | 1992-10-13 | 1994-04-14 | Bosch Gmbh Robert | Device for the current-controlled control of several actuators by means of a control computer |
| JPH0724138U (en) * | 1993-10-12 | 1995-05-09 | 俊治 花田 | A reading stand for uniform viewing distance |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5688507A (en) * | 1979-11-26 | 1981-07-18 | Honeywell Inc | Status control device |
| JPS5851314A (en) * | 1981-09-22 | 1983-03-26 | Fujitsu Ltd | Control system for power supply |
-
1983
- 1983-07-15 JP JP12883583A patent/JPS6020217A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5688507A (en) * | 1979-11-26 | 1981-07-18 | Honeywell Inc | Status control device |
| JPS5851314A (en) * | 1981-09-22 | 1983-03-26 | Fujitsu Ltd | Control system for power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6020217A (en) | 1985-02-01 |
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