JPS6165551U - - Google Patents
Info
- Publication number
- JPS6165551U JPS6165551U JP14689284U JP14689284U JPS6165551U JP S6165551 U JPS6165551 U JP S6165551U JP 14689284 U JP14689284 U JP 14689284U JP 14689284 U JP14689284 U JP 14689284U JP S6165551 U JPS6165551 U JP S6165551U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- output voltage
- affected
- circuit power
- 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
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Power Sources (AREA)
- 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図は第１図の動作の説明図、第３図は第１図
の具体例を示す回路図、第４図は従来の回路のブ
ロツク図である。
１……回路電源、２……バツクアツプ電源、３
……電源切換回路、４……バツクアツプ不要回路
、５……電圧監視回路、６……バツクアツプ必要
回路、７……スイツチ。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is an explanatory diagram of the operation of FIG. 1, FIG. 3 is a circuit diagram showing a specific example of FIG. 1, and FIG. 4 is a block diagram of a conventional circuit. 1... Circuit power supply, 2... Backup power supply, 3
...power supply switching circuit, 4...circuit not requiring backup, 5...voltage monitoring circuit, 6...circuit requiring backup, 7...switch.
Claims (1)
が所定の電圧よりも低下した時はバツクアツプ電
源により駆動されるように構成されたメモリ保護
回路において、回路電源の出力電圧の低下により
メモリに影響を及ぼす周辺回路を回路電源の出力
電圧がこれら周辺回路を完全に駆動できなくなる
値に低下するまでの間バツクアツプ電源で駆動す
るように構成されたことを特徴とするメモリ保護
回路。 In a memory protection circuit that is normally driven by a circuit power supply and is configured to be driven by a backup power supply when the output voltage of the circuit power supply drops below a predetermined voltage, the memory is affected by the drop in the output voltage of the circuit power supply. 1. A memory protection circuit characterized in that a backup power supply is used to drive peripheral circuits that are affected by the power supply until the output voltage of the circuit power supply drops to a value that makes it impossible to completely drive these peripheral circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14689284U JPS6165551U (en) | 1984-09-28 | 1984-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14689284U JPS6165551U (en) | 1984-09-28 | 1984-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6165551U true JPS6165551U (en) | 1986-05-06 |
Family
ID=30705129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14689284U Pending JPS6165551U (en) | 1984-09-28 | 1984-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6165551U (en) |
-
1984
- 1984-09-28 JP JP14689284U patent/JPS6165551U/ja active Pending
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