JPH0421144U - - Google Patents
Info
- Publication number
- JPH0421144U JPH0421144U JP6195790U JP6195790U JPH0421144U JP H0421144 U JPH0421144 U JP H0421144U JP 6195790 U JP6195790 U JP 6195790U JP 6195790 U JP6195790 U JP 6195790U JP H0421144 U JPH0421144 U JP H0421144U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- capacitor
- primary battery
- charging voltage
- supply 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
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Description
第１図は本考案のバツクアツプ装置の１実施例
の結線図、第２図は従来例の結線図である。
１……外部給電端子、３……１次電池、４……
記憶回路、５……スーパーコンデンサ、１０，１
１……充電電圧検出手段を形成する分圧用の抵抗
、１２，１３……給電ゲート手段を形成するトラ
ンジスタ。
FIG. 1 is a wiring diagram of one embodiment of the backup device of the present invention, and FIG. 2 is a wiring diagram of a conventional example. 1...External power supply terminal, 3...Primary battery, 4...
Memory circuit, 5...Super capacitor, 10,1
1... Resistance for voltage division forming charging voltage detection means, 12, 13... Transistors forming power supply gate means.
Claims (1)
電源端子に接続された主バツクアツプ用の１次電
池と、 前記電源端子に接続され前記直流電源及び前記
１次電池により充電される補助バツクアツプ用の
コンデンサとを備え、 前記１次電池の交換時等の無給電時に、前記コ
ンデンサの蓄積エネルギを前記回路に給電するバ
ツクアツプ装置において、 前記コンデンサの充電電圧を検出して監視する
充電電圧検出手段と、 前記検出手段の前記充電電圧に比例した検出出
力に基づくスイツチングにより前記充電電圧が前
記１次電池の電圧より少し低い設定電圧に達する
まで前記１次電池を前記電源端子、前記コンデン
サから切離す給電ゲート手段と を備えたバツクアツプ装置。[Claims for Utility Model Registration] A primary battery for main backup connected to a power supply terminal of a circuit to which a DC power supply from an external power supply terminal is normally supplied, and the DC power supply and the primary battery connected to the power supply terminal. an auxiliary backup capacitor that is charged by an auxiliary backup capacitor, and supplies energy stored in the capacitor to the circuit when power is not supplied such as when replacing the primary battery, the backup device comprising: detecting the charging voltage of the capacitor; charging voltage detecting means for monitoring; and switching based on a detection output proportional to the charging voltage of the detecting means to connect the primary battery to the power supply terminal until the charging voltage reaches a set voltage slightly lower than the voltage of the primary battery. , and power supply gate means for disconnecting from the capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6195790U JPH0421144U (en) | 1990-06-11 | 1990-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6195790U JPH0421144U (en) | 1990-06-11 | 1990-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0421144U true JPH0421144U (en) | 1992-02-21 |
Family
ID=31590677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6195790U Pending JPH0421144U (en) | 1990-06-11 | 1990-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0421144U (en) |
-
1990
- 1990-06-11 JP JP6195790U patent/JPH0421144U/ja active Pending
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