JPS59155628U - power backup circuit - Google Patents
power backup circuitInfo
- Publication number
- JPS59155628U JPS59155628U JP4741283U JP4741283U JPS59155628U JP S59155628 U JPS59155628 U JP S59155628U JP 4741283 U JP4741283 U JP 4741283U JP 4741283 U JP4741283 U JP 4741283U JP S59155628 U JPS59155628 U JP S59155628U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- backup circuit
- power backup
- power supply
- 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
Landscapes
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Safety Devices In Control Systems (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図、第２図および第３図はそれぞれ従来の電源バッ
クアップ回路、本考案□による第１実施例の電源バック
アップ回路および第２実施例の電源バックアップ回路を
備えた半導体記憶装置の概略構成図である。
各図において、１・・・電気回路としてのＣ−ＭＯＳ、
ＲＡＭ、４・・・−次電池、６・・・電源回路、７・・
・電源バックアップ回路、８，１θ・・・電流制限手段
としての抵抗器、９・・・二次電池。FIG. 1, FIG. 2, and FIG. 3 are schematic configuration diagrams of a semiconductor memory device equipped with a conventional power backup circuit, a power backup circuit of a first embodiment according to the present invention, and a power backup circuit of a second embodiment, respectively. It is. In each figure, 1... C-MOS as an electric circuit,
RAM, 4...-secondary battery, 6... power supply circuit, 7...
- Power supply backup circuit, 8, 1θ... resistor as current limiting means, 9... secondary battery.
Claims (1)
を用いて前記電源回路のバックアップを行なう電源バッ
クアップ回路において、前記電池が前記電気回路に給電
する電流の経路に電流制限手段を設けたことを特徴とす
る電源バックアップ回路。In a power supply backup circuit that is connected in parallel to a power supply circuit that supplies power to an electric circuit and backs up the power supply circuit using a battery, current limiting means is provided in a current path that the battery supplies to the electric circuit. A power backup circuit featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4741283U JPS59155628U (en) | 1983-03-31 | 1983-03-31 | power backup circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4741283U JPS59155628U (en) | 1983-03-31 | 1983-03-31 | power backup circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59155628U true JPS59155628U (en) | 1984-10-19 |
Family
ID=30177960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4741283U Pending JPS59155628U (en) | 1983-03-31 | 1983-03-31 | power backup circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59155628U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6146621U (en) * | 1984-08-29 | 1986-03-28 | 八重洲無線株式会社 | Memory backup power supply |
| JPS61275918A (en) * | 1985-05-31 | 1986-12-06 | Yokogawa Electric Corp | Memory backup circuit |
-
1983
- 1983-03-31 JP JP4741283U patent/JPS59155628U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6146621U (en) * | 1984-08-29 | 1986-03-28 | 八重洲無線株式会社 | Memory backup power supply |
| JPS61275918A (en) * | 1985-05-31 | 1986-12-06 | Yokogawa Electric Corp | Memory backup circuit |
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