JP2723839B2 - Battery backup device - Google Patents
Battery backup deviceInfo
- Publication number
- JP2723839B2 JP2723839B2 JP7160468A JP16046895A JP2723839B2 JP 2723839 B2 JP2723839 B2 JP 2723839B2 JP 7160468 A JP7160468 A JP 7160468A JP 16046895 A JP16046895 A JP 16046895A JP 2723839 B2 JP2723839 B2 JP 2723839B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- switch
- circuit
- charging
- layer capacitor
- 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.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 claims description 28
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は電池バックアップ装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery backup device.
【０００２】[0002]
【従来の技術】従来の電池バックアップ装置について図
面を参照して説明する。2. Description of the Related Art A conventional battery backup device will be described with reference to the drawings.
【０００３】図２は第１の従来例を示すブロック図であ
る。FIG. 2 is a block diagram showing a first conventional example.
【０００４】図２において、本第１の従来例は、スイッ
チ１２を介して負荷装置のメインロジック回路へ電力を
供給する主電池１１と、負荷装置内の一部のロジック回
路及びメモリ回路等に電力を供給する主電池１１のバッ
クアップ用の電池１６と、スイッチ１２を介して電池１
６を主電池１１から充電する充電回路１５とを有してい
る。In FIG. 2, the first conventional example includes a main battery 11 for supplying power to a main logic circuit of a load device via a switch 12 and a part of a logic circuit and a memory circuit in the load device. A backup battery 16 for the main battery 11 for supplying power and a battery 1 via the switch 12
6 is charged from the main battery 11.
【０００５】この第１の従来例では、常時電池１６が主
電池１１からの電力で充電回路１５を通して充電されて
いる。In the first conventional example, the battery 16 is constantly charged by the power from the main battery 11 through the charging circuit 15.
【０００６】従って、スイッチ１２がオフされた場合
や、主電池１１が取り外された場合でも電池１６によっ
て負荷装置の一部のロジック回路やメモリ回路等へ電力
を供給することができる。Therefore, even when the switch 12 is turned off or when the main battery 11 is removed, the battery 16 can supply power to a part of a logic circuit or a memory circuit of the load device.
【０００７】図３は第２の従来例を示すブロック図であ
る。FIG. 3 is a block diagram showing a second conventional example.
【０００８】図３において、本第２の従来例は、特開平
４−２２２４２７号公報「電池バックアップ回路」の開
示内容を示し、電池１１０に出力電圧を高低切換え可能
な電源回路１１４を接続し、高抵抗１１８とスイッチ素
子１１６との並列回路を電気二重層コンデンサ１２０と
直列に接続して電源回路１１４の出力側で電池１１０と
並列に配置する構成となっている。電池１１０の交換前
に電源回路１１４を高電圧出力に切り換えると共にスイ
ッチ素子１１６を導通させて、高電圧で電気二重層コン
デンサ１２０を急速充電し、電池１１０の取外し時は整
流ダイオード１２２を介して負荷回路に電力を供給す
る。In FIG. 3, this second conventional example shows the contents disclosed in Japanese Patent Application Laid-Open No. Hei 4-222427, "Battery Backup Circuit". A parallel circuit of the high resistance 118 and the switch element 116 is connected in series with the electric double layer capacitor 120, and is arranged in parallel with the battery 110 on the output side of the power supply circuit 114. Before the battery 110 is replaced, the power supply circuit 114 is switched to a high-voltage output and the switch element 116 is turned on to rapidly charge the electric double-layer capacitor 120 at a high voltage. Supply power to the circuit.
【０００９】[0009]
【発明が解決しようとする課題】この従来の電池バック
アップ装置は、図２に示す第１の従来例の場合には主電
池１１が取り外された途端にバックアップ用の電池１６
への充電が中断され、バックアップとしての期間が短か
くなるという問題点があった。In the case of the first conventional example shown in FIG. 2, the conventional battery backup device has a backup battery 16 as soon as the main battery 11 is removed.
Charging is interrupted, and the backup period becomes short.
【００１０】又、図３に示す第２の従来例の場合には高
電圧で電気二重層コンデンサを充電しておかなければ有
効電圧域の持続時間を長くすることができないという問
題点がある。Further, in the case of the second conventional example shown in FIG. 3, there is a problem that the duration of the effective voltage range cannot be extended unless the electric double layer capacitor is charged at a high voltage.
【００１１】[0011]
【課題を解決するための手段】本発明の電池バックアッ
プ装置は、負荷装置へ電力を供給する第１の電池から前
記負荷装置の一部に電力を供給する前記第１の電池のバ
ックアップ用の第２の電池を充電させる第１の充電回路
と、前記第１の電池から電気二重層コンデンサを充電さ
せる第２の充電回路とを有し、且つ、前記第１の電池を
取外すときに前記電気二重層コンデンサから前記第１の
充電回路を介して前記第２の電池を充電させるべく接続
を切替えさせる切替手段を備えている。According to the present invention, there is provided a battery backup device for supplying power to a portion of the load device from a first battery for supplying power to the load device. A first charging circuit for charging the second battery, and a second charging circuit for charging the electric double-layer capacitor from the first battery. Switching means is provided for switching a connection to charge the second battery from the multilayer capacitor via the first charging circuit.
【００１２】本発明の電池バックアップ装置は、第１の
電池から負荷装置への電力供給の開閉をする第１のスイ
ッチと、前記負荷装置の一部に電力を供給する前記第１
の電池のバックアップ用の第２の電池と、前記第１の電
池から前記第２の電池を充電する第１の充電回路と、前
記第１の電池と前記第１のスイッチとの直列回路に直列
に接続して前記第１の充電回路に接続する第２のスイッ
チと、前記第１の電池を取外した時に前記第２の電池の
充電用の電荷を蓄積する電気二重層コンデンサと、前記
第１の電池と前記第１のスイッチとの前記直列回路に直
列に接続して前記第１の電池の電力で前記電気二重層コ
ンデンサに電荷を蓄積させる第２の充電回路と、前記第
１の電池を取外した時に前記第２の電池を充電させるた
めに前記電気二重層コンデンサと前記第１の充電回路と
を接続させる第３のスイッチとを有している。[0012] The battery backup device of the present invention includes a first switch for opening and closing power supply from a first battery to a load device, and the first switch for supplying power to a part of the load device.
A second battery for backing up the first battery, a first charging circuit for charging the second battery from the first battery, and a series circuit of the first battery and the first switch. A second switch connected to the first charging circuit and connected to the first charging circuit; an electric double-layer capacitor for storing charge for charging the second battery when the first battery is removed; A second charging circuit connected in series to the series circuit of the battery and the first switch to accumulate charge in the electric double layer capacitor with the power of the first battery; and A third switch for connecting the electric double-layer capacitor and the first charging circuit to charge the second battery when removed.
【００１３】本発明の電池バックアップ装置は、前記第
１の電池が接続されている場合には前記第１及び第２の
スイッチは閉じて前記第３のスイッチは開いた状態にな
り、前記第１の電池が取外された場合には前記第１及び
第２のスイッチは開き前記第３のスイッチは閉じる状態
に成るべく連動する。In the battery backup device according to the present invention, when the first battery is connected, the first and second switches are closed and the third switch is opened, and the first battery is connected to the first battery. When the battery is removed, the first and second switches are opened and the third switch is operated so as to be in a closed state.
【００１４】[0014]
【実施例】次に、本発明について図面を参照して説明す
る。Next, the present invention will be described with reference to the drawings.
【００１５】図１は本発明の一実施例を示すブロック図
である。FIG. 1 is a block diagram showing one embodiment of the present invention.
【００１６】図１において、本実施例は主電池１から負
荷装置のメインロジック回路への電力供給の開閉をする
スイッチ２−１と、負荷装置の一部のロジック回路及び
メモリ回路等に電力を供給する主電池１のバックアップ
用の電池６と、主電池１から電池６を充電する充電回路
５と、主電池１とスイッチ２−１との直列回路に直列に
接続して充電回路５に接続するスイッチ２−２と、主電
池１を取外し時に電池６の充電用の電荷を蓄積する電気
二重層コンデンサ４と、主電池１とスイッチン２−１と
に直列に接続して主電池１からの電力で電気二重層コン
デンサ４に電荷を蓄積させるコンデンサ充電回路３と、
主電池１を取外した時に電池６を充電させるため電気二
重層コンデンサ４と充電回路５とを接続させるスイッチ
２−３とを有し、主電池１が接続されている状態ではス
イッチ２−１及び２−２は閉じ、スイッチ２−３は開い
た状態になり、主電池１を取外すときにはスイッチ２−
１及び２−２は開き、スイッチ２−３は閉じる状態に成
るべく連動している。Referring to FIG. 1, in this embodiment, a switch 2-1 for opening and closing power supply from a main battery 1 to a main logic circuit of a load device, and a power supply to a logic circuit and a memory circuit of a part of the load device. A backup battery 6 for the main battery 1 to be supplied, a charging circuit 5 for charging the battery 6 from the main battery 1, and a series circuit of the main battery 1 and the switch 2-1 connected in series and connected to the charging circuit 5 Switch 2-2, an electric double-layer capacitor 4 for storing charge for charging the battery 6 when the main battery 1 is removed, and a main battery 1 and a switch 2-1 connected in series to connect the main battery 1 and the switch 2-1. A capacitor charging circuit 3 for storing electric charges in the electric double layer capacitor 4 with the electric power of
It has a switch 2-3 for connecting the electric double layer capacitor 4 and the charging circuit 5 to charge the battery 6 when the main battery 1 is removed, and the switch 2-1 and the switch 2-1 when the main battery 1 is connected. 2-2 is closed, switch 2-3 is open, and when removing main battery 1, switch 2-3 is opened.
1 and 2-2 are open, and switch 2-3 is interlocked to be in a closed state.
【００１７】次に、本実施例の動作について説明する。Next, the operation of this embodiment will be described.
【００１８】主電池１が接続されていて通常の状態で
は、スイッチ２−１，２−２は閉じた状態（スイッチ２
−３は開いた状態）なので、主電池１から負荷装置のメ
インロック回路へ電力を供給すると共に、コンデンサ充
電回路３によって電気二重層コンデンサ４は蓄電され、
また、充電回路５によってバックアップ用の電池６も充
電される。When the main battery 1 is connected and in a normal state, the switches 2-1 and 2-2 are closed (switch 2).
-3 is open), so that power is supplied from the main battery 1 to the main lock circuit of the load device, and the electric double layer capacitor 4 is charged by the capacitor charging circuit 3,
The charging circuit 5 also charges the backup battery 6.
【００１９】次に、主電池１が取外された場合には、ス
イッチン２−１，２−２は開き、スイッチ２−３は閉じ
た状態となるので、バックアップ用の電池６は、電気二
重層コンデンサ４から充電されながら、負荷装置の一部
の回路及びメモリ回路等へ、電気二重層コンデンサ４が
ない場合に比較して長期間電力を供給することができ
る。Next, when the main battery 1 is removed, the switches 2-1 and 2-2 are opened and the switch 2-3 is closed. While being charged from the double-layer capacitor 4, power can be supplied to a part of a circuit of the load device, a memory circuit, and the like for a longer period of time than when the electric double-layer capacitor 4 is not provided.
【００２０】又、主電池１及びバックアップ用の電池６
を同時に取外した場合においても、電気二重層コンデン
サ４のみからの電力で短期間、負荷装置の一部の回路及
びメモリ回路等へ電力を供給することもできる。A main battery 1 and a backup battery 6
Can be supplied at the same time, power can be supplied to a part of the circuit of the load device, the memory circuit, and the like for a short period of time by the power from the electric double layer capacitor 4 alone.
【００２１】[0021]
【発明の効果】以上説明したように本発明は、負荷装置
へ電力を供給する第１の電池から負荷装置の一部に電力
を供給する第１の電池のバックアップ用の第２の電池を
充電させる第１の充電回路と、第１の電池から電気二重
層コンデンサを充電させる第２の充電回路とを有し、且
つ、第１の電池を取外するときに電気二重層コンデンサ
から第１の充電回路を介して第２の電池を充電させるべ
く接続を切替えさせる切替手段を備えることにより、第
１の電池が取外されたとき、従来の電気二重層コンデン
サがない場合に比較して第２の電池が充電されながら使
用されるので、第２の電池が長期間負荷装置の一部へ安
定した電力を供給することができる効果がある。As described above, according to the present invention, the second battery for backing up the first battery for supplying power to a part of the load device from the first battery for supplying power to the load device is charged. A first charging circuit for charging the electric double layer capacitor from the first battery, and a second charging circuit for charging the electric double layer capacitor from the first battery. By providing the switching means for switching the connection to charge the second battery via the charging circuit, when the first battery is removed, the second battery is compared with the case where there is no conventional electric double layer capacitor. Since the second battery is used while being charged, there is an effect that the second battery can supply stable power to a part of the load device for a long time.
【００２２】又、第１の電池と第２の電池とがほぼ同時
に取外されたときでも、電気二重層コンデンサから負荷
装置の一部へ電力を短期間供給できるので、電気二重層
コンデンサが第２の電池のバックアップをすることがで
きる効果がある。Further, even when the first battery and the second battery are removed almost at the same time, electric power can be supplied from the electric double-layer capacitor to a part of the load device for a short period of time. There is an effect that the second battery can be backed up.
【図１】本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.
【図２】第１の従来例を示すブロック図である。FIG. 2 is a block diagram showing a first conventional example.
【図３】第２の従来例を示すブロック図である。FIG. 3 is a block diagram showing a second conventional example.
１ 主電池 ２−１，２−２，２−３ スイッチ ３ コンデンサ充電回路 ４ 電気二重層コンデンサ ５ 充電回路 ６ バックアップ用電池 DESCRIPTION OF SYMBOLS 1 Main battery 2-1 2-2, 2-3 Switch 3 Capacitor charging circuit 4 Electric double layer capacitor 5 Charging circuit 6 Backup battery
Claims (3)
ら前記負荷装置の一部に電力を供給する前記第１の電池
のバックアップ用の第２の電池を充電させる第１の充電
回路と、前記第１の電池から電気二重層コンデンサを充
電させる第２の充電回路とを有し、且つ、前記第１の電
池を取外すときに前記電気二重層コンデンサから前記第
１の充電回路を介して前記第２の電池を充電させるべく
接続を切替えさせる切替手段を備えることを特徴とする
電池バックアップ装置。A first charging circuit for charging a backup second battery of the first battery for supplying power to a part of the load device from a first battery for supplying power to the load device; A second charging circuit for charging the electric double-layer capacitor from the first battery, and when removing the first battery, from the electric double-layer capacitor via the first charging circuit. A battery backup device comprising: a switching unit that switches a connection to charge the second battery.
開閉をする第１のスイッチと、前記負荷装置の一部に電
力を供給する前記第１の電池のバックアップ用の第２の
電池と、前記第１の電池から前記第２の電池を充電する
第１の充電回路と、前記第１の電池と前記第１のスイッ
チとの直列回路に直列に接続して前記第１の充電回路に
接続する第２のスイッチと、前記第１の電池を取外した
時に前記第２の電池の充電用の電荷を蓄積する電気二重
層コンデンサと、前記第１の電池と前記第１のスイッチ
との前記直列回路に直列に接続して前記第１の電池の電
力で前記電気二重層コンデンサに電荷を蓄積させる第２
の充電回路と、前記第１の電池を取外した時に前記第２
の電池を充電させるために前記電気二重層コンデンサと
前記第１の充電回路とを接続させる第３のスイッチとを
有することを特徴とする電池バックアップ装置。2. A first switch for opening and closing power supply from a first battery to a load device, and a second battery for backing up the first battery for supplying power to a part of the load device. A first charging circuit for charging the second battery from the first battery; and a first charging circuit connected in series to a series circuit of the first battery and the first switch. A second switch connected to the first battery, an electric double-layer capacitor for storing charge for charging the second battery when the first battery is removed, and a second switch connected to the first battery and the first switch. A second circuit connected in series to the series circuit and storing electric charge in the electric double layer capacitor with the power of the first battery;
And the second battery when the first battery is removed.
And a third switch for connecting the electric double-layer capacitor and the first charging circuit to charge the battery.
は前記第１及び第２のスイッチは閉じて前記第３のスイ
ッチは開いた状態になり、前記第１の電池が取外された
場合には前記第１及び第２のスイッチは開き前記第３の
スイッチは閉じる状態に成るべく連動することを特徴と
する請求項２記載の電池バックアップ装置。3. When the first battery is connected, the first and second switches are closed and the third switch is open, and the first battery is removed. 3. The battery backup device according to claim 2, wherein the first and second switches are opened and the third switch is operated to be closed in a case where the power is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7160468A JP2723839B2 (en) | 1995-06-27 | 1995-06-27 | Battery backup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7160468A JP2723839B2 (en) | 1995-06-27 | 1995-06-27 | Battery backup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0919086A JPH0919086A (en) | 1997-01-17 |
| JP2723839B2 true JP2723839B2 (en) | 1998-03-09 |
Family
ID=15715607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7160468A Expired - Fee Related JP2723839B2 (en) | 1995-06-27 | 1995-06-27 | Battery backup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2723839B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7737581B2 (en) * | 2005-08-16 | 2010-06-15 | Medtronic Minimed, Inc. | Method and apparatus for predicting end of battery life |
| CN109690898B (en) * | 2016-09-20 | 2022-10-28 | 松下知识产权经营株式会社 | Power supply device and vehicle equipped with power supply device |
-
1995
- 1995-06-27 JP JP7160468A patent/JP2723839B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0919086A (en) | 1997-01-17 |
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