JPH02133035U - - Google Patents
Info
- Publication number
- JPH02133035U JPH02133035U JP1989040130U JP4013089U JPH02133035U JP H02133035 U JPH02133035 U JP H02133035U JP 1989040130 U JP1989040130 U JP 1989040130U JP 4013089 U JP4013089 U JP 4013089U JP H02133035 U JPH02133035 U JP H02133035U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- ram
- voltage converter
- supply circuit
- output terminal
- 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Description
第１図は本考案の構成を示す図、第２図は本考
案の実施例の構成を示す図、第３図は従来の回路
構成を示す図である。
１……主電源電池、２……電源スイツチ、３…
…電圧安定器、４……逆流防止ダイオード、５…
…ＲＡＭ、７……動作機器、８……リチウム電池
、１０……電圧変換器。
FIG. 1 is a diagram showing the configuration of the present invention, FIG. 2 is a diagram showing the configuration of an embodiment of the present invention, and FIG. 3 is a diagram showing the conventional circuit configuration. 1... Main power battery, 2... Power switch, 3...
...Voltage stabilizer, 4...Reverse current prevention diode, 5...
...RAM, 7... Operating equipment, 8... Lithium battery, 10... Voltage converter.
Claims (1)
ＲＡＭをリチウム電池により電源バツクアツプし
ているＲＡＭバツクアツプ電源回路において、 前記主電源の端子と接続した電圧変換器を具備
し、該電圧変換器の出力端子を前記ＲＡＭの電源
バツクアツプ端子の一方に接続したこと を特徴とするＲＡＭバツクアツプ電源回路。 請求項第１項記載の電圧変換器の出力端子に
容量素子を接続することを特徴とするＲＡＭバツ
クアツプ電源回路。[Scope of Claim for Utility Model Registration] A RAM backup power supply circuit that uses a lithium battery to back up the power supply of a RAM used by a device that operates using a battery as the main power supply, comprising a voltage converter connected to a terminal of the main power supply, A RAM backup power supply circuit characterized in that the output terminal of the voltage converter is connected to one of the power supply backup terminals of the RAM. A RAM backup power supply circuit characterized in that a capacitive element is connected to the output terminal of the voltage converter according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989040130U JPH02133035U (en) | 1989-04-05 | 1989-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989040130U JPH02133035U (en) | 1989-04-05 | 1989-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02133035U true JPH02133035U (en) | 1990-11-05 |
Family
ID=31549651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989040130U Pending JPH02133035U (en) | 1989-04-05 | 1989-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02133035U (en) |
-
1989
- 1989-04-05 JP JP1989040130U patent/JPH02133035U/ja active Pending