JPH0273225U - - Google Patents
Info
- Publication number
- JPH0273225U JPH0273225U JP15267588U JP15267588U JPH0273225U JP H0273225 U JPH0273225 U JP H0273225U JP 15267588 U JP15267588 U JP 15267588U JP 15267588 U JP15267588 U JP 15267588U JP H0273225 U JPH0273225 U JP H0273225U
- Authority
- JP
- Japan
- Prior art keywords
- power
- power supply
- memory
- memory protection
- supply device
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
Landscapes
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Description
図は本考案の具体的な一実施例に係るメモリ保
護用電源回路を示した回路図である。
１０…メモリ保護用電源回路、１１…メモリＩ
Ｃ、２０…制御装置の装置電源、Ｃ１…高容量コ
ンデンサ、Ｌｉ…リチウム電池、Ｄ１，Ｄ２，Ｄ
３…ダイオード。
The figure is a circuit diagram showing a memory protection power supply circuit according to a specific embodiment of the present invention. 10...Memory protection power supply circuit, 11...Memory I
C, 20... Device power supply of control device, C 1 ... High capacity capacitor, Li... Lithium battery, D 1 , D 2 , D
3 ...Diode.
Claims (1)
外部電源から電力を入力し安定化した電力を供給
する給電装置と、前記給電装置の出力がオフの期
間前記メモリの記憶内容を保持するための電力を
供給するメモリ保護用電池と、該メモリ保護用電
池の電池電圧の低下を検出する電圧検出回路とか
ら成るメモリ保護用電源回路において、 前記メモリ保護用電池とダイオードを介して相
互に給電されないように並列に接続し、通常動作
時に前記給電装置により給電される高容量コンデ
ンサ を具備したことを特徴とするメモリ保護用電源回
路。[Claims for Utility Model Registration] A power supply device that inputs power from an external power source and supplies stabilized power to a memory that stores data etc. of a control device; and a power supply device that supplies stabilized power to a memory that stores data etc. of a control device; A memory protection power supply circuit comprising a memory protection battery that supplies power for retaining memory contents, and a voltage detection circuit that detects a decrease in battery voltage of the memory protection battery, wherein the memory protection battery and a diode 1. A power supply circuit for memory protection, comprising a high-capacity capacitor that is connected in parallel so that power is not supplied to each other via the power supply device, and is supplied with power by the power supply device during normal operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15267588U JPH0273225U (en) | 1988-11-24 | 1988-11-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15267588U JPH0273225U (en) | 1988-11-24 | 1988-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0273225U true JPH0273225U (en) | 1990-06-05 |
Family
ID=31427818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15267588U Pending JPH0273225U (en) | 1988-11-24 | 1988-11-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0273225U (en) |
-
1988
- 1988-11-24 JP JP15267588U patent/JPH0273225U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63198567U (en) | ||
| JPH0273225U (en) | ||
| JPS62152643U (en) | ||
| JPS64126U (en) | ||
| JPS639604U (en) | ||
| JPS62105525U (en) | ||
| JPH0191948U (en) | ||
| JPS6165550U (en) | ||
| JPS61101440U (en) | ||
| JPS5940998U (en) | low voltage alarm device | |
| JPS62201830U (en) | ||
| JPH01164570U (en) | ||
| JPS6127441U (en) | Power supply control circuit | |
| JPS6138700U (en) | Buzzer drive device for electronic equipment with solar cells | |
| JPH0374026U (en) | ||
| JPH0191950U (en) | ||
| JPS61152128U (en) | ||
| JPS59183149U (en) | charging circuit | |
| JPS60184133U (en) | Battery backup memory circuit | |
| JPS6054654U (en) | anti-theft device | |
| JPS5963702U (en) | load control device | |
| JPS63164843U (en) | ||
| JPS60131095U (en) | information monitoring device | |
| JPS625338U (en) | ||
| JPH0214126U (en) |