JP2003324840A - Power supply - Google Patents
Power supplyInfo
- Publication number
- JP2003324840A JP2003324840A JP2002124277A JP2002124277A JP2003324840A JP 2003324840 A JP2003324840 A JP 2003324840A JP 2002124277 A JP2002124277 A JP 2002124277A JP 2002124277 A JP2002124277 A JP 2002124277A JP 2003324840 A JP2003324840 A JP 2003324840A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- supply circuit
- abnormality
- loads
- 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.)
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- Emergency Protection Circuit Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電源回路から複数
の負荷に給電を行う電源供給装置に関し、特にショート
モード故障が生じた場合に、その原因を有効に検出して
迅速かつ容易に復旧処理を行えるようにした電源供給装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device for supplying power from a power supply circuit to a plurality of loads, and in particular, when a short mode failure occurs, the cause thereof is effectively detected and recovery processing is carried out quickly and easily. The present invention relates to a power supply device capable of performing.
【０００２】[0002]
【従来の技術】従来より、図３に示すような電源供給装
置が提供されている。この電源供給装置は、電源回路１
０から同一電圧で動作する複数の負荷２０−１〜２０−
Ｎに対して給電を行うものであり、ある負荷でショート
モード故障（例えば、コンデンサのショート等）が発生
した場合には、電源回路１０に設けた過電流検出部１１
がショート電流を検出し、この電源回路１０から出力さ
れる過電流検出信号を受信した制御部１２より、電源回
路１０に対してＯＦＦ指示がなされ、システム停止とな
る。そして、制御部１２は、ショートモード故障による
システム停止が生じた旨を故障箇所表示部１３に表示
し、システム管理者に通知する。2. Description of the Related Art Conventionally, a power supply device as shown in FIG. 3 has been provided. This power supply device includes a power supply circuit 1
A plurality of loads 20-1 to 20- operating from 0 to the same voltage
Power is supplied to N, and when a short mode failure (for example, capacitor short circuit) occurs in a certain load, an overcurrent detection unit 11 provided in the power supply circuit 10 is provided.
Detects a short-circuit current and receives an overcurrent detection signal output from the power supply circuit 10, the control unit 12 issues an OFF instruction to the power supply circuit 10, and the system is stopped. Then, the control unit 12 displays the fact that the system is stopped due to the short mode failure on the failure point display unit 13 to notify the system administrator.
【０００３】しかし、この場合、故障箇所として電源回
路及び給電されていた複数の負荷が指摘され、全てが交
換対象となるため復旧までに時間がかかり、装置使用者
に多大なる損失を被らせてしまう問題があった。そこ
で、このような問題に対応し得るものとして、たとえば
特開平０５−０６８３２２号、特開平０５−０６８３２
６号、及び特開平０５−０７６１２８号等においては、
負荷部における過電流故障を高精度に検出できるような
回路保護装置が提案されている。However, in this case, a power supply circuit and a plurality of loads that have been supplied with power are pointed out as failure points, and since all of them are to be replaced, it takes time to restore them, causing a great loss to the user of the apparatus. There was a problem that caused it. Therefore, as means for dealing with such a problem, for example, Japanese Patent Laid-Open Nos. 05-068322 and 05-06832 are disclosed.
No. 6, and JP-A-05-076128,
There has been proposed a circuit protection device capable of detecting an overcurrent fault in a load portion with high accuracy.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の回路保護装置では、負荷側の過電流故障を検出する
ことは可能であるが、電源回路側のショート故障を検出
するものではないため、ショート故障が発生した際に、
その箇所が電源回路側か負荷側かを迅速に判断すること
ができず、復旧処理に手間取る場合が考えられる。However, although the above-mentioned conventional circuit protection device can detect an overcurrent fault on the load side, it does not detect a short-circuit fault on the power supply circuit side. When a failure occurs,
It may not be possible to quickly determine whether the location is on the power supply circuit side or the load side, and it may be time-consuming to perform restoration processing.
【０００５】そこで本発明の目的は、システム全体でシ
ョート故障箇所を特定でき、部品交換等の復旧処理を迅
速かつ容易に行うことが可能な電源供給装置を提供する
ことにある。Therefore, an object of the present invention is to provide a power supply device capable of identifying a short-circuit failure point in the entire system and performing restoration processing such as component replacement quickly and easily.
【０００６】[0006]
【課題を解決するための手段】本発明は前記目的を達成
するため、電源供給を行う電源を出力する電源回路と、
前記電源回路から出力される複数の負荷とを有する電源
供給装置において、前記電源回路及び複数の負荷の全て
にそれぞれ設けられるショートモード異常検出手段と、
前記ショートモード異常検出手段から出力される異常検
出信号を入力し、この異常検出信号からショートモード
異常が生じた電源回路または負荷を特定する異常監視手
段と、前記異常監視手段からの指示に基づいて異常箇所
と異常警報を出力する警報出力手段とを有することを特
徴とする。In order to achieve the above object, the present invention provides a power supply circuit for outputting a power supply for supplying power.
In a power supply device having a plurality of loads output from the power supply circuit, short mode abnormality detection means provided in each of the power supply circuit and the plurality of loads,
An abnormality monitoring means for inputting an abnormality detection signal output from the short mode abnormality detecting means and specifying a power supply circuit or a load in which the short mode abnormality has occurred from the abnormality detection signal, and based on an instruction from the abnormality monitoring means It is characterized by having an abnormal portion and an alarm output means for outputting an abnormal alarm.
【０００７】本発明の電源供給装置では、システム内の
全ての負荷と電源回路に個別にショートモード異常検出
手段を設け、その異常検出信号からショートモード異常
が生じた電源回路または負荷を特定し、この特定した異
常箇所と異常警報を出力することから、簡単な構成によ
って電源回路を含むシステム全体でショート故障箇所を
特定でき、部品交換等の復旧処理を迅速かつ容易に行う
ことが可能となる。In the power supply device of the present invention, all the loads and power supply circuits in the system are individually provided with short mode abnormality detecting means, and the power supply circuit or load in which the short mode abnormality has occurred is identified from the abnormality detection signal, Since the specified abnormal part and the abnormal alarm are output, it is possible to specify the short-circuited failure part in the entire system including the power supply circuit with a simple configuration, and it is possible to quickly and easily perform restoration processing such as component replacement.
【０００８】[0008]
【発明の実施の形態】以下、本発明による電源供給装置
の実施の形態例について説明する。なお、以下に説明す
る実施の形態は、本発明の好適な具体例であり、技術的
に好ましい種々の限定が付されているが、本発明の範囲
は、以下の説明において、特に本発明を限定する旨の記
載がない限り、これらの態様に限定されないものとす
る。本実施の形態による電源供給装置は、ショートモー
ド故障時の保守交換の効率向上を図るものであり、電源
回路と複数の負荷とを接続し、電源回路から同一電圧で
動作する複数の負荷に対して給電を行うシステムにおい
て、電源回路と各負荷にそれぞれ過電流検出手段を設
け、ショートモード故障時に全ての負荷及び電源回路の
中でどこにショートモード故障が生じたかを通知するこ
とにより、故障箇所を迅速に特定できるようにし、交換
効率向上、復旧時間短縮による装置使用者の損失低減を
図るようにしたものである。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a power supply device according to the present invention will be described below. The embodiments described below are preferred specific examples of the present invention, and various technically preferable limitations are given. However, the scope of the present invention is not limited to the present invention in the following description. Unless otherwise stated, the present invention is not limited to these embodiments. The power supply device according to the present embodiment is intended to improve the efficiency of maintenance and replacement in the case of a short mode failure, and connects a power supply circuit and a plurality of loads to a plurality of loads operating from the power supply circuit at the same voltage. In a system that supplies power by means of overcurrent detection means for the power supply circuit and each load, and by notifying where the short mode failure occurred in all loads and power supply circuits at the time of short mode failure, the failure location can be identified. It enables quick identification, improves exchange efficiency, and reduces loss for equipment users by shortening recovery time.
【０００９】以下、本実施の形態による電源供給装置の
具体例について図面を用いて説明する。図１は、本発明
の実施の形態による電源供給装置の構成例を示すブロッ
ク図である。図示のように、本例の電源供給装置は、電
源回路１１０と制御部（異常監視手段）１１２と故障箇
所表示部（警報出力手段）１１４と負荷１２０−１〜１
２０−Ｎとを有し、電源回路１１０及び全ての負荷１２
０−１〜１２０−Ｎに、それぞれ個別に過電流検出部
（ショートモード異常検出手段）１３０Ａ、１３０Ｂが
設けられている。A specific example of the power supply device according to this embodiment will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of a power supply device according to an embodiment of the present invention. As shown in the figure, the power supply device of this example includes a power supply circuit 110, a control unit (abnormality monitoring unit) 112, a failure point display unit (alarm output unit) 114, and loads 120-1 to 120-1.
20-N, power supply circuit 110 and all loads 12
Overcurrent detection units (short mode abnormality detection means) 130A and 130B are individually provided for 0-1 to 120-N.
【００１０】電源回路１１０は、各負荷１２０−１〜１
２０−Ｎの駆動電力を生成して給電を行うものである。
なお、電源回路１１０の変換方式等は特に限定されない
ものとする。また、各負荷１２０−１〜１２０−Ｎは、
電源回路１１０によって生成された電源によって駆動す
る各種の機器である。なお、本例において、各負荷１２
０−１〜１２０−Ｎは、同一電圧で動作するものとし、
各負荷１２０−１〜１２０−Ｎの過電流検出部１３０Ｂ
は、互いに共通の検出電流レベルを有するものとする。
ただし、本発明は、各負荷１２０−１〜１２０−Ｎが互
いに異なる電圧で動作するものであってもよく、この場
合には、各負荷１２０−１〜１２０−Ｎの過電流検出部
１３０Ｂはそれぞれの駆動電圧に応じた電流検出レベル
を有するものとする。The power supply circuit 110 includes the loads 120-1 to 120-1.
20-N drive power is generated to supply power.
The conversion method of the power supply circuit 110 is not particularly limited. Moreover, each load 120-1 to 120-N is
These are various devices driven by the power source generated by the power source circuit 110. In this example, each load 12
0-1 to 120-N operate at the same voltage,
Overcurrent detection unit 130B of each load 120-1 to 120-N
Have detection current levels common to each other.
However, in the present invention, the loads 120-1 to 120-N may operate at different voltages, and in this case, the overcurrent detection unit 130B of each of the loads 120-1 to 120-N is It has a current detection level corresponding to each drive voltage.
【００１１】また、制御部１１２は、電源回路１１０の
オン・オフ制御を行うとともに、各過電流検出部１３０
Ａ、１３０Ｂの検出信号に基づいてシステム全体の異常
監視を行うものである。また、故障箇所表示部１１４
は、表示パネル（視覚的表示手段）等によってショート
モード異常が生じた電源回路１１０または負荷１２０−
１〜１２０−Ｎを表示するとともに、表示パネルと警報
ブザー（音響出力手段）によって異常警報を行うもので
ある。また、各過電流検出部１３０Ａ、１３０Ｂは、電
源回路１１０または負荷１２０−１〜１２０−Ｎにおけ
る過電流を検出することにより、ショートモード故障
（例えば、コンデンサのショート等）を監視しており、
過電流を検出した場合には、その検出信号と故障箇所
（すなわち、電源回路１１０またはいずれかの負荷１２
０−１〜１２０−Ｎ）を示す情報とを制御部１１２に出
力する。Further, the control unit 112 controls ON / OFF of the power supply circuit 110, and each overcurrent detection unit 130.
The abnormality monitoring of the entire system is performed based on the detection signals of A and 130B. In addition, the failure point display unit 114
Is a power supply circuit 110 or a load 120-in which a short mode abnormality occurs due to a display panel (visual display means) or the like.
1 to 120-N are displayed, and an abnormal alarm is given by a display panel and an alarm buzzer (sound output means). In addition, each of the overcurrent detection units 130A and 130B monitors the short circuit failure (for example, capacitor short circuit) by detecting the overcurrent in the power supply circuit 110 or the loads 120-1 to 120-N,
When an overcurrent is detected, the detection signal and the failure point (that is, the power supply circuit 110 or any load 12) are detected.
The information indicating 0-1 to 120-N) is output to the control unit 112.
【００１２】なお、電源回路１１０に設けられる過電流
検出部１３０Ａと、各負荷１２０−１〜１２０−Ｎに設
けられる過電流検出部１３０Ｂとでは、互いに異なる電
圧検出レベルを有しており、過電流検出部１３０Ａの検
出レベルの方が過電流検出部１３０Ｂの検出レベルより
も高く設定することにより、負荷側のショートモード故
障時に負荷側での過電流検出が電源回路側での過電流検
出よりも先となるようになっている。その理由は、たと
えば先に電源回路側で検出するようにした場合、制御部
が電源回路をＯＦＦさせてしまうため、その時点でショ
ート電流が停止し、負荷側での過電流検出ができなくな
り、ショートモード故障の発生した負荷を特定できなる
ためである。The overcurrent detection unit 130A provided in the power supply circuit 110 and the overcurrent detection unit 130B provided in each of the loads 120-1 to 120-N have different voltage detection levels from each other. By setting the detection level of the current detection unit 130A higher than the detection level of the overcurrent detection unit 130B, the overcurrent detection on the load side can be performed more than the overcurrent detection on the power supply circuit side when the short mode failure occurs on the load side. Is also coming first. The reason is that, for example, if the power supply circuit side is detected first, the control unit turns off the power supply circuit, so the short-circuit current stops at that point, and overcurrent detection on the load side becomes impossible, This is because the load in which the short mode failure has occurred cannot be specified.
【００１３】そして、このような過電流検出部１３０
Ａ、１３０Ｂからの検出信号を受け取った制御部１１２
は、電源回路１１０による給電を停止（オフ）する指示
を行うとともに、故障箇所表示部１１４に対して故障箇
所を特定しての警報出力を行う旨の指示を行う。これに
より、故障箇所表示部１１４では、電源回路１１０また
は負荷１２０−１〜１２０−Ｎのいずれにショートモー
ド故障が生じたかを、たとえば電源回路１１０や各負荷
１２０−１〜１２０−Ｎに付した機器番号等によって表
示し、また同時に警報ブザー等によって異常警報を行
う。Then, such an overcurrent detection unit 130
The control unit 112 that has received the detection signals from A and 130B.
Gives an instruction to stop (turn off) the power supply by the power supply circuit 110, and gives an instruction to the failure point display unit 114 to specify a failure point and output an alarm. As a result, in the failure point display unit 114, which of the power supply circuit 110 or the loads 120-1 to 120-N has the short mode failure is attached to, for example, the power supply circuit 110 or each of the loads 120-1 to 120-N. It is displayed by the device number, etc., and at the same time, an alarm is issued by an alarm buzzer, etc.
【００１４】図２は、以上のような構成による電源供給
回路の異常検出動作を示す説明図であり、横軸は時間経
過（ｔ）を示し、縦軸は各過電流検出部１３０Ａ、１３
０Ｂによる過電流検出レベル（破線ａ、ｂ）と給電電流
レベル（実線ｃ）の変化例を示している。図示の例にお
いて、たとえば時間ｔ１で、ある負荷にショート故障が
発生すると、その負荷における供給電流レベルが上昇
し、その負荷に設けられた過電流検出部１３０Ｂによっ
て過電流が検出される（時間ｔ２）。そこで、この過電
流検出部１３０Ｂは、自機の機器番号と過電流を検出し
た旨の信号を制御部１１２に送出する。これにより制御
部１１２は、ショートモード故障の生じた負荷を特定で
き、その負荷の機器番号と故障警報とを出力するように
故障箇所表示部１１４に指示し、また、電源回路１１０
をオフし、給電を停止する（ｔ３）。これにより、電源
回路１１０から各負荷１２０−１〜１２０−Ｎへの給電
が停止する。FIG. 2 is an explanatory diagram showing an abnormality detecting operation of the power supply circuit having the above-mentioned configuration, in which the abscissa indicates the time lapse (t) and the ordinate indicates the respective overcurrent detectors 130A, 13A.
An example of changes in the overcurrent detection level (broken lines a and b) and the feeding current level (solid line c) due to 0B is shown. In the illustrated example, when a short-circuit failure occurs in a certain load at time t1, for example, the supply current level of the load rises, and the overcurrent detection unit 130B provided in the load detects the overcurrent (time t2. ). Therefore, the overcurrent detection unit 130B sends a signal indicating that the device number of the own device and the overcurrent have been detected to the control unit 112. As a result, the control unit 112 can identify the load in which the short-mode failure has occurred, instruct the failure point display unit 114 to output the device number of the load and the failure alarm, and the power supply circuit 110.
Is turned off and power supply is stopped (t3). As a result, the power supply from the power supply circuit 110 to the loads 120-1 to 120-N is stopped.
【００１５】なお、電源回路１１０側にショートモード
故障が生じた場合には、電源回路１１０側で検出される
給電電流レベルが負荷側の過電流検出部１３０Ｂの検出
レベルよりも高くなり、過電流検出部１３０Ａの検出レ
ベルに到った時点で検出され、電源回路１１０側でショ
ートモード故障があった旨の異常警報と給電停止が実行
される。以上のようにして、電源回路１１０及び各負荷
１２０−１〜１２０−Ｎにショートモード故障が生じた
場合、その故障箇所を適切に指摘して異常警報を行うこ
とにより、部品交換等の復旧作業を容易かつ迅速に行う
ことができる。また、本例では、電源回路１１０及び複
数の負荷１２０−１〜１２０−Ｎの全てにそれぞれ過電
流検出回路１３０Ａ、１３０Ｂを設けるという単純な構
成で実現でき、複雑な判定回路や制御動作を行うことな
く、異常箇所を的確に使用者に通知することができ、極
めて有用な電源監視システムを提供できる。When a short-circuit failure occurs on the power supply circuit 110 side, the power supply current level detected on the power supply circuit 110 side becomes higher than the detection level of the overcurrent detection unit 130B on the load side, resulting in overcurrent. It is detected at the time when the detection level of the detection unit 130A is reached, and an abnormality alarm indicating that there is a short mode failure on the power supply circuit 110 side and power supply stop are executed. As described above, when a short mode failure occurs in the power supply circuit 110 and each of the loads 120-1 to 120-N, the failure place is properly pointed out and an abnormal alarm is given to perform a restoration work such as parts replacement. Can be done easily and quickly. Further, in this example, the power supply circuit 110 and all of the plurality of loads 120-1 to 120-N can be realized by a simple configuration in which the overcurrent detection circuits 130A and 130B are provided, respectively, and complicated determination circuits and control operations are performed. It is possible to provide the user with an accurate notification of the abnormal portion without providing an extremely useful power supply monitoring system.
【００１６】以上、本発明の具体例について説明した
が、本発明はさらに種々の変形、応用が可能である。た
とえば上記の例では、電源回路１１０と全ての負荷１２
０−１〜１２０−Ｎに１つずつ過電流検出部１３０Ａ、
１３０Ｂを設けたが、過電流検出手段以外の異常検出手
段を付加したり、あるいは１つの負荷について複数箇所
に過電流検出手段を設け、これらの検出信号を制御部で
処理することにより、より詳細な異常検出を行うような
構成としてもよい。また、故障箇所表示部１１４につい
ては複数の場所（遠隔地等）に設置するような構成をと
り得ることはもちろんである。Although the specific examples of the present invention have been described above, the present invention can be further variously modified and applied. For example, in the above example, the power supply circuit 110 and all the loads 12
0-1 to 120-N, one overcurrent detection unit 130A,
Although 130B is provided, by adding abnormality detection means other than the overcurrent detection means, or by providing overcurrent detection means at a plurality of locations for one load and processing these detection signals by the control unit, more details can be obtained. The configuration may be such that various abnormalities are detected. Further, it goes without saying that the failure point display unit 114 can be configured to be installed at a plurality of places (remote places, etc.).
【００１７】[0017]
【発明の効果】以上説明したように本発明の電源供給装
置では、システム内の全ての負荷と電源回路に個別にシ
ョートモード異常検出手段を設け、その異常検出信号か
らショートモード異常が生じた電源回路または負荷を特
定し、この特定した異常箇所と異常警報を出力すること
から、電源回路を含むシステム全体でショート故障箇所
を特定でき、部品交換等の復旧処理を迅速かつ容易に行
うことが可能となる。特に、電源回路及び複数の負荷の
全てにそれぞれショートモード異常検出手段を設けると
いう単純な構成により、複雑な判定回路や制御動作を行
うことなく、異常箇所を的確に使用者に通知することが
でき、極めて有用な電源監視システムを実現することが
できる利点がある。As described above, in the power supply device of the present invention, all the loads and power supply circuits in the system are individually provided with the short mode abnormality detecting means, and the power source in which the short mode abnormality has occurred from the abnormality detection signal is generated. By specifying the circuit or load and outputting the specified abnormal point and abnormal alarm, it is possible to specify the short-circuit failure point in the entire system including the power supply circuit, and it is possible to perform restoration processing such as component replacement quickly and easily. Becomes In particular, the simple configuration in which each of the power supply circuit and the plurality of loads is provided with short mode abnormality detection means can accurately notify the user of the abnormal portion without performing a complicated determination circuit or control operation. There is an advantage that a very useful power supply monitoring system can be realized.
【図１】本発明の実施の形態による電源供給装置の構成
例を示すブロック図である。FIG. 1 is a block diagram showing a configuration example of a power supply device according to an embodiment of the present invention.
【図２】図１に示す電源供給回路の異常検出動作を示す
説明図である。FIG. 2 is an explanatory diagram showing an abnormality detection operation of the power supply circuit shown in FIG.
【図３】従来の電源供給装置の構成例を示すブロック図
である。FIG. 3 is a block diagram showing a configuration example of a conventional power supply device.
１１０……電源回路、１１２……制御部、１１４……故
障箇所表示部、１２０−１〜１２０−Ｎ……負荷、１３
０Ａ、１３０Ｂ……過電流検出部。110 ... Power supply circuit, 112 ... Control unit, 114 ... Fault location display unit, 120-1 to 120-N ... Load, 13
0A, 130B ... Overcurrent detection unit.
Claims (7)
と、前記電源回路から出力される複数の負荷とを有する
電源供給装置において、 前記電源回路及び複数の負荷の全てにそれぞれ設けられ
るショートモード異常検出手段と、 前記ショートモード異常検出手段から出力される異常検
出信号を入力し、この異常検出信号からショートモード
異常が生じた電源回路または負荷を特定する異常監視手
段と、 前記異常監視手段からの指示に基づいて異常箇所と異常
警報を出力する警報出力手段と、 を有することを特徴とする電源供給装置。1. A power supply device having a power supply circuit that outputs a power supply for supplying power, and a plurality of loads output from the power supply circuit, wherein a short mode is provided for each of the power supply circuit and the plurality of loads. An abnormality detecting unit, an abnormality monitoring unit for inputting an abnormality detection signal output from the short mode abnormality detecting unit, and specifying a power supply circuit or a load in which the short mode abnormality has occurred from the abnormality detection signal, and the abnormality monitoring unit. A power supply device, comprising: an abnormal point and an alarm output unit that outputs an abnormal alarm based on the instruction of 1.
同一電圧で動作するものであることを特徴とする請求項
１記載の電源供給装置。2. The power supply device according to claim 1, wherein the plurality of loads operate with the same voltage from the power supply circuit.
電流を検出する手段であることを特徴とする請求項１記
載の電源供給装置。3. The power supply device according to claim 1, wherein the short mode abnormality detecting means is means for detecting an overcurrent.
記負荷側の過電流検出レベルよりも高くし、負荷側の過
電流を先に検出できるようにしたことを特徴とする請求
項３記載の電源供給装置。4. The overcurrent detection level on the power supply circuit side is set higher than the overcurrent detection level on the load side so that the overcurrent on the load side can be detected first. Power supply device.
よってショートモード異常が生じた電源回路または負荷
を表示することを特徴とする請求項１記載の電源供給装
置。5. The power supply device according to claim 1, wherein the alarm output means displays the power supply circuit or the load in which the short mode abnormality has occurred by a visual display means.
音響出力手段によって異常警報を行うことを特徴とする
請求項５記載の電源供給装置。6. The power supply device according to claim 5, wherein the alarm output means issues an abnormality alarm by a visual display means and an acoustic output means.
常が生じた場合、前記電源回路に給電停止の指示を出力
することを特徴とする請求項１記載の電源供給装置。7. The power supply device according to claim 1, wherein the abnormality monitoring means outputs a power supply stop instruction to the power supply circuit when a short mode abnormality occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002124277A JP2003324840A (en) | 2002-04-25 | 2002-04-25 | Power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002124277A JP2003324840A (en) | 2002-04-25 | 2002-04-25 | Power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003324840A true JP2003324840A (en) | 2003-11-14 |
Family
ID=29539349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002124277A Pending JP2003324840A (en) | 2002-04-25 | 2002-04-25 | Power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003324840A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009089559A (en) * | 2007-10-02 | 2009-04-23 | Rb Controls Co | Load driving circuit |
| JP2010154366A (en) * | 2008-12-25 | 2010-07-08 | Kyocera Corp | Portable electronic apparatus |
-
2002
- 2002-04-25 JP JP2002124277A patent/JP2003324840A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009089559A (en) * | 2007-10-02 | 2009-04-23 | Rb Controls Co | Load driving circuit |
| JP2010154366A (en) * | 2008-12-25 | 2010-07-08 | Kyocera Corp | Portable electronic apparatus |
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