JPH0670479A - Circuit for charging battery - Google Patents
Circuit for charging batteryInfo
- Publication number
- JPH0670479A JPH0670479A JP21984992A JP21984992A JPH0670479A JP H0670479 A JPH0670479 A JP H0670479A JP 21984992 A JP21984992 A JP 21984992A JP 21984992 A JP21984992 A JP 21984992A JP H0670479 A JPH0670479 A JP H0670479A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- charging
- circuit
- voltage
- current
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、バッテリ充電回路に関
する。FIELD OF THE INVENTION The present invention relates to a battery charging circuit.
【０００２】[0002]
【従来の技術】従来のバッテリ充電回路は、充電電流が
変化しないか、または変化させるにしても、タイマ等の
回路により時間によって変化させていた。2. Description of the Related Art In a conventional battery charging circuit, a charging current does not change, or even if it changes, it changes with time by a circuit such as a timer.
【０００３】[0003]
【発明が解決しようとする課題】この従来のバッテリ充
電回路では、バッテリ充電時の充電電流を切替えない
か、又は切替える場合にもタイマによる時間での切替え
などバッテリ電圧に関係なくバッテリへの充電電流が流
していたため、バッテリの劣化を進めてしまい、これに
よりバッテリの寿命を短かくしてしまうという問題点が
あった。In this conventional battery charging circuit, the charging current for charging the battery is not switched, or even when it is switched, the charging current to the battery is switched regardless of the battery voltage, such as switching by the timer. However, there is a problem that the deterioration of the battery is promoted and the life of the battery is shortened.
【０００４】[0004]
【課題を解決するための手段】本発明のバッテリ充電回
路は、バッテリへの充電時のバッテリ電圧を監視するバ
ッテリ電圧監視回路と、前記バッテリ電圧によってバッ
テリへの充電電流を変更させるバッテリ充放電回路とを
設けたことを特徴とする。SUMMARY OF THE INVENTION A battery charging circuit of the present invention is a battery voltage monitoring circuit for monitoring a battery voltage when charging a battery, and a battery charging / discharging circuit for changing a charging current to the battery according to the battery voltage. And is provided.
【０００５】[0005]
【実施例】次に本発明について図面を参照して説明す
る。The present invention will be described below with reference to the drawings.
【０００６】図１は本発明の一実施例の構成図である。
このバッテリ充電回路は、充電電流変更回路５及びバッ
テリ電圧監視回路７を設けていることを特徴としてい
る。FIG. 1 is a block diagram of an embodiment of the present invention.
This battery charging circuit is characterized in that a charging current changing circuit 5 and a battery voltage monitoring circuit 7 are provided.
【０００７】まず、電源１がＯＮされている時に、バッ
テリ充放電回路４によってバッテリ６への充電が行なわ
れる。このバッテリ６への充電時に、バッテリ電圧監視
回路７はバッテリ６の電圧を監視することでバッテリの
充電率を判断し、バッテリ６の電圧に応じて充電流変更
回路５に対して、数段階のバッテリ電圧に対応した信号
を送る。充電電流変更回路５は、この信号に応答してバ
ッテリ６の充電率を判断することでバッテリ６への充電
電流を変更する。First, when the power supply 1 is turned on, the battery charging / discharging circuit 4 charges the battery 6. At the time of charging the battery 6, the battery voltage monitoring circuit 7 determines the charging rate of the battery by monitoring the voltage of the battery 6, and the charging flow changing circuit 5 is operated in several stages according to the voltage of the battery 6. Send a signal corresponding to the battery voltage. The charging current changing circuit 5 changes the charging current to the battery 6 by judging the charging rate of the battery 6 in response to this signal.
【０００８】充電電流変更回路５と、バッテリ電圧監視
回路７は電源１がＯＮされている場合のみ動作し、電源
１がＯＦＦされた場合には動作はせず、バッテリ６の電
圧の降下があったとしてもこれに対応しない。電源１が
ＯＦＦされた場合には、バッテリ充放電回路４によりバ
ッテリ１の放電が行なわれ、バックアップ電源回路２を
通し、被バックアップ回路３のバックアップを行う。The charging current changing circuit 5 and the battery voltage monitoring circuit 7 operate only when the power source 1 is turned on, do not operate when the power source 1 is turned off, and the voltage of the battery 6 drops. Even if it doesn't correspond to this. When the power supply 1 is turned off, the battery 1 is discharged by the battery charge / discharge circuit 4, and the backup target circuit 3 is backed up through the backup power supply circuit 2.
【０００９】[0009]
【発明の効果】以上説明したように本発明は、充電可能
なバッテリの充電において、バッテリの電圧によってバ
ッテリの充電電流を変更することによって、バッテリの
劣化を防ぎ、バッテリの寿命を長くするという効果を有
する。As described above, according to the present invention, when charging a rechargeable battery, the charging current of the battery is changed according to the voltage of the battery to prevent deterioration of the battery and prolong the life of the battery. Have.
【図１】本発明の一実施例の構成図である。FIG. 1 is a configuration diagram of an embodiment of the present invention.
１ 電源 ２ バックアップ電源回路 ３ 被バックアップ回路 ４ バッテリ充放電回路 ５ 充電電流変更回路 ６ バッテリ ７ バッテリ電圧監視回路 1 Power Supply 2 Backup Power Supply Circuit 3 Backup Target Circuit 4 Battery Charging / Discharging Circuit 5 Charging Current Change Circuit 6 Battery 7 Battery Voltage Monitoring Circuit
Claims (1)
視するバッテリ電圧監視回路と、前記バッテリ電圧によ
ってバッテリへの充電電流を変更させるバッテリ充放電
回路とを設けたことを特徴とするバッテリ充電回路。1. A battery charging circuit, comprising: a battery voltage monitoring circuit for monitoring a battery voltage during charging of the battery; and a battery charging / discharging circuit for changing a charging current to the battery according to the battery voltage. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21984992A JPH0670479A (en) | 1992-08-19 | 1992-08-19 | Circuit for charging battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21984992A JPH0670479A (en) | 1992-08-19 | 1992-08-19 | Circuit for charging battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0670479A true JPH0670479A (en) | 1994-03-11 |
Family
ID=16742029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21984992A Pending JPH0670479A (en) | 1992-08-19 | 1992-08-19 | Circuit for charging battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0670479A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018038306A1 (en) * | 2016-08-26 | 2018-03-01 | (주)드림텍 | Electric vehicle battery monitoring system having ibs module and led module linked |
-
1992
- 1992-08-19 JP JP21984992A patent/JPH0670479A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018038306A1 (en) * | 2016-08-26 | 2018-03-01 | (주)드림텍 | Electric vehicle battery monitoring system having ibs module and led module linked |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19990223 |