JPH0176155U - - Google Patents
Info
- Publication number
- JPH0176155U JPH0176155U JP1987171654U JP17165487U JPH0176155U JP H0176155 U JPH0176155 U JP H0176155U JP 1987171654 U JP1987171654 U JP 1987171654U JP 17165487 U JP17165487 U JP 17165487U JP H0176155 U JPH0176155 U JP H0176155U
- Authority
- JP
- Japan
- Prior art keywords
- backup
- voltage
- current
- ram
- power supply
- 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
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Power Sources (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
第１図はこの考案による電源装置の一実施例の
全体構成図、第２図はこの考案の一実施例の電気
接続を示す回路図、第３図は従来の電源装置の構
成図である。
図において、１は充電電池、２はＲＡＭ、３は
電流測定端子、４は主電源、５は導通切換手段、
６は電圧比較手段である。なお、図中同一符号は
同一、又は相当部分である。
FIG. 1 is an overall configuration diagram of an embodiment of a power supply device according to this invention, FIG. 2 is a circuit diagram showing electrical connections of an embodiment of this invention, and FIG. 3 is a construction diagram of a conventional power supply device. In the figure, 1 is a rechargeable battery, 2 is a RAM, 3 is a current measurement terminal, 4 is a main power supply, 5 is a continuity switching means,
6 is a voltage comparison means. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
電池、前記バツクアツプ電流の導通を切り換える
導通切換手段、この導通切換手段によつてＲＡＭ
に供給されるバツクアツプ電流と主電源から充電
電池に供給される充電電流を測定する電流測定端
子、及び前記の導通切換手段によつてバツクアツ
プ電流の電圧を検出する電圧比較手段を備えたＲ
ＡＭバツクアツプ用電源装置。 (2) 導通切換手段は、バツクアツプ電流を測定
する場合と、電圧比較手段でバツクアツプ電流の
電圧を検出する場合とを切り換えることを特徴と
する実用新案登録請求の範囲第１項記載のＲＡＭ
バツクアツプ用電源装置。 (3) 電圧比較手段によつて、ＲＡＭに供給され
るバツクアツプ電流の電圧を任意の時に測定し、
設定した電圧以下になると、ＬＥＤを点燈するよ
うにした実用新案登録請求の範囲第１項または第
２項記載のＲＡＭバツクアツプ用電源装置。[Claims for Utility Model Registration] (1) A rechargeable battery that supplies backup current to the RAM, a conduction switching means that switches conduction of the backup current, and a conduction switching means that switches the conduction of the backup current to the RAM.
A current measuring terminal for measuring the backup current supplied to the rechargeable battery and the charging current supplied from the main power supply to the rechargeable battery, and voltage comparison means for detecting the voltage of the backup current by the continuity switching means.
AM backup power supply. (2) The RAM according to claim 1 of the utility model registration claim, wherein the conduction switching means switches between measuring the backup current and detecting the voltage of the backup current with the voltage comparison means.
Backup power supply. (3) Measuring the voltage of the backup current supplied to the RAM by the voltage comparison means at any time;
A RAM backup power supply device according to claim 1 or 2, wherein an LED is turned on when the voltage falls below a set voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171654U JPH0176155U (en) | 1987-11-10 | 1987-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171654U JPH0176155U (en) | 1987-11-10 | 1987-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0176155U true JPH0176155U (en) | 1989-05-23 |
Family
ID=31463666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987171654U Pending JPH0176155U (en) | 1987-11-10 | 1987-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0176155U (en) |
-
1987
- 1987-11-10 JP JP1987171654U patent/JPH0176155U/ja active Pending
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