JPH01172127U - - Google Patents
Info
- Publication number
- JPH01172127U JPH01172127U JP6664288U JP6664288U JPH01172127U JP H01172127 U JPH01172127 U JP H01172127U JP 6664288 U JP6664288 U JP 6664288U JP 6664288 U JP6664288 U JP 6664288U JP H01172127 U JPH01172127 U JP H01172127U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- memory
- allowable range
- charging
- secondary battery
- 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
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000006870 function Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
- G11C5/141—Battery and back-up supplies
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6664288U JPH01172127U (en]) | 1988-05-20 | 1988-05-20 | |
| EP19890108531 EP0342531A3 (en) | 1988-05-20 | 1989-05-11 | Memory back up system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6664288U JPH01172127U (en]) | 1988-05-20 | 1988-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01172127U true JPH01172127U (en]) | 1989-12-06 |
Family
ID=13321756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6664288U Pending JPH01172127U (en]) | 1988-05-20 | 1988-05-20 |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0342531A3 (en]) |
| JP (1) | JPH01172127U (en]) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001178890A (ja) * | 1999-12-24 | 2001-07-03 | Sankyo Kk | 遊技機 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4403309A (en) * | 1981-06-01 | 1983-09-06 | General Research Of Electronics, Inc. | Automatic back-up circuit |
| CH662464A5 (de) * | 1984-02-20 | 1987-09-30 | Renata Ag | Batteriegestuetztes integriertes schaltelement. |
-
1988
- 1988-05-20 JP JP6664288U patent/JPH01172127U/ja active Pending
-
1989
- 1989-05-11 EP EP19890108531 patent/EP0342531A3/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001178890A (ja) * | 1999-12-24 | 2001-07-03 | Sankyo Kk | 遊技機 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0342531A2 (en) | 1989-11-23 |
| EP0342531A3 (en) | 1992-03-11 |