JPH0397748U - - Google Patents
Info
- Publication number
- JPH0397748U JPH0397748U JP506490U JP506490U JPH0397748U JP H0397748 U JPH0397748 U JP H0397748U JP 506490 U JP506490 U JP 506490U JP 506490 U JP506490 U JP 506490U JP H0397748 U JPH0397748 U JP H0397748U
- Authority
- JP
- Japan
- Prior art keywords
- power source
- voltage
- signal
- memory section
- voltage detection
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は商用電源異常検知回路の詳細を示すブロ
ツク図、第３図はそのタイムチヤート、第４図は
フローチヤート、第５図は従来のデータ処理装置
を示すブロツク図、第６図は従来のフローチヤー
トである。
図において、１……コネクタ、２……安全ブレ
ーカ、３……電源スイツチ、４……主電源、５…
…予備電源、６……主回路部、７……メモリ部、
８……補助メモリ部、９……デイスプレイ部、１
０……キーボード、１１……バス線、１２……電
源線、１３……予備電源線、１４……商用電源異
常検知回路、１４ａ……電源電圧監視回路、１４
ｂ……Ｒ−Ｓ型フリツプフロツプ回路、１５……
異常電圧検知信号、１６……リセツト信号である
。
FIG. 1 is a block diagram showing an embodiment of the present invention.
Fig. 2 is a block diagram showing details of the commercial power supply abnormality detection circuit, Fig. 3 is its time chart, Fig. 4 is a flow chart, Fig. 5 is a block diagram showing a conventional data processing device, and Fig. 6 is a conventional one. This is a flowchart. In the figure, 1...Connector, 2...Safety breaker, 3...Power switch, 4...Main power supply, 5...
...Backup power supply, 6...Main circuit section, 7...Memory section,
8... Auxiliary memory section, 9... Display section, 1
0... Keyboard, 11... Bus line, 12... Power line, 13... Standby power line, 14... Commercial power supply abnormality detection circuit, 14a... Power supply voltage monitoring circuit, 14
b...R-S type flip-flop circuit, 15...
Abnormal voltage detection signal, 16...Reset signal.
Claims (1)
動作するメモリ部と、該メモリ部に電圧を常時供
給する予備電源とを有するデータ処理装置におい
て、 前記予備電源の出力電圧のレベルを検知し、該
電圧レベルが予め設定された電圧レベルに降下し
たとき、出力信号を送出する電圧検知手段と、 前記出力信号が入力されると異常電圧検知信号
を出力するとともに、該信号を保持する自己保持
手段と、 前記主電源からの電圧により動作し、前記異常
電圧検知信号が入力されているかを判断し、該信
号が入力されているとき、補助メモリ部からプロ
グラムを読出して前記メモリ部にロードさせ、か
つ、前記自己保持手段の異常電圧検知信号を解除
させる前記主回路部と を備えたことを特徴とするデータ処理装置。[Claims for Utility Model Registration] A data processing device having a memory section that operates based on instructions from a main circuit section connected to a main power source, and a backup power source that constantly supplies voltage to the memory section, the backup power source comprising: voltage detection means for detecting the level of the output voltage of the device and outputting an output signal when the voltage level drops to a preset voltage level; and outputting an abnormal voltage detection signal when the output signal is input; , a self-holding means that holds the signal; and a self-holding means that is operated by the voltage from the main power source, determines whether the abnormal voltage detection signal is input, and when the signal is input, reads a program from the auxiliary memory section. A data processing device comprising: the main circuit section that reads and loads the data into the memory section, and cancels the abnormal voltage detection signal of the self-holding means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP506490U JPH0397748U (en) | 1990-01-25 | 1990-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP506490U JPH0397748U (en) | 1990-01-25 | 1990-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0397748U true JPH0397748U (en) | 1991-10-08 |
Family
ID=31508784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP506490U Pending JPH0397748U (en) | 1990-01-25 | 1990-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0397748U (en) |
-
1990
- 1990-01-25 JP JP506490U patent/JPH0397748U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR880011639A (en) | Battery powered portable device | |
| KR960024823A (en) | Computer system capable of recovering work by key signal input and its control method | |
| JPH0397748U (en) | ||
| JPH0532142A (en) | Watch dog timer device of microcomputer system supply | |
| KR960042351A (en) | CPI Reset Circuit | |
| US5767594A (en) | Computer keyboard power saving method | |
| JPS61223916A (en) | Power source control system | |
| JPH0312032Y2 (en) | ||
| JPH0675654A (en) | Power saving system for computer | |
| KR200283612Y1 (en) | Control circuit in case of power failure | |
| JPH01120745U (en) | ||
| JPH04142608A (en) | Power supply control method | |
| JPS6037643Y2 (en) | data processing equipment | |
| JP2515152B2 (en) | Electronic circuit | |
| JPH0461439U (en) | ||
| JPH10333923A (en) | Interruption control circuit for microcomputer | |
| JPS59194227A (en) | Detection system for break of power supply | |
| JPH0425445U (en) | ||
| JPH0255319U (en) | ||
| JPS6454127U (en) | ||
| JPS6111837A (en) | Control circuit of powering-on sequence | |
| JPH0434828U (en) | ||
| JPH0447734U (en) | ||
| JPS6454128U (en) | ||
| KR19980062524U (en) | Personal computer displaying sleep state |