JPS6016233U - IC memory battery backup device - Google Patents
IC memory battery backup deviceInfo
- Publication number
- JPS6016233U JPS6016233U JP10279583U JP10279583U JPS6016233U JP S6016233 U JPS6016233 U JP S6016233U JP 10279583 U JP10279583 U JP 10279583U JP 10279583 U JP10279583 U JP 10279583U JP S6016233 U JPS6016233 U JP S6016233U
- Authority
- JP
- Japan
- Prior art keywords
- battery
- memory
- voltage
- backup device
- battery backup
- 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
Landscapes
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はＩＣメモリのバッテリバックアップ装、置の一
般的な配置を示す系統図、第２図は本考案の一実施例を
示す回路図、第３図および第４図は本考案の動作を説明
するタイムチャート、第５図は本考案の他の実施例を示
す回路図、第６図は第５図の動作を示すタイムチャート
、第７図は本考案のさよに他の実施例を示す回路図であ
る。
１・・・・・・コンピュータ本体、２・・・・・・ＩＣ
メモリ、３・・・・・・バッテリバックアップ装置、Ｂ
、 ＮＢ・・・・・・バッテリ、ＣＭＰｉ、ＣＭＰ２・
・・コンパレータ、ＢＦＩ、ＢＦ２・・・・・・バッフ
ァ、ＬＧＣ・・・・・・アンド回路、ＦＦＩ、ＦＦ２・
・・・・・フリップフロップ、ＩＮＶ・・・・・・イン
バータ。Fig. 1 is a system diagram showing the general arrangement of an IC memory battery backup device, Fig. 2 is a circuit diagram showing an embodiment of the invention, and Figs. 3 and 4 show the operation of the invention. A time chart to be explained, FIG. 5 is a circuit diagram showing another embodiment of the present invention, FIG. 6 is a time chart showing the operation of FIG. 5, and FIG. 7 is a circuit diagram showing another embodiment of the present invention. It is a circuit diagram. 1...Computer body, 2...IC
Memory, 3...Battery backup device, B
, NB...Battery, CMPi, CMP2・
...Comparator, BFI, BF2...Buffer, LGC...AND circuit, FFI, FF2...
...Flip-flop, INV...Inverter.
Claims (3)
給し、停電時はＩＣメモリの動作を停止させると共にバ
ッテリからメモリ保存用電圧を供給するＩＣメモリのバ
ッテリバックアップ装置において、上記バッテリの電圧
低下を検出する複数の比較器を備え、バッテリの電圧が
低下したとき順次警報および動作停止信号を出力するこ
とを特徴とするＩＣメモリのバッテリバックアップ装置
。(1) In an IC memory battery backup device that supplies an operating voltage to an IC memory from an external DC power supply, stops the operation of the IC memory in the event of a power outage, and supplies memory storage voltage from a battery, the voltage of the battery is A battery backup device for an IC memory, comprising a plurality of comparators for detecting a voltage drop, and sequentially outputs an alarm and an operation stop signal when the battery voltage drops.
てその検出結果を保持するフリップフロップを備えた実
用新案登録請求の範囲第１項記載のＩＣメモリのバッテ
リバックアップ装置。(2) A battery backup device for an IC memory according to claim 1, which is equipped with a flip-flop that detects the voltage of the battery and holds the detection result when the DC power is turned on.
禁止してバッテリの電圧検出を行なうようにした実用新
案登録請求の範囲第１項記載のＩＣメモリのバッテリバ
ックアップ装置。(3) A battery backup device for an IC memory according to claim 1, wherein when DC power is turned on, charging of the battery is temporarily prohibited and battery voltage is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10279583U JPS6016233U (en) | 1983-07-04 | 1983-07-04 | IC memory battery backup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10279583U JPS6016233U (en) | 1983-07-04 | 1983-07-04 | IC memory battery backup device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6016233U true JPS6016233U (en) | 1985-02-04 |
Family
ID=30242126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10279583U Pending JPS6016233U (en) | 1983-07-04 | 1983-07-04 | IC memory battery backup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6016233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6375933U (en) * | 1986-11-06 | 1988-05-20 |
-
1983
- 1983-07-04 JP JP10279583U patent/JPS6016233U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6375933U (en) * | 1986-11-06 | 1988-05-20 |
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