JPH08265984A - Power supply - Google Patents
Power supplyInfo
- Publication number
- JPH08265984A JPH08265984A JP7060619A JP6061995A JPH08265984A JP H08265984 A JPH08265984 A JP H08265984A JP 7060619 A JP7060619 A JP 7060619A JP 6061995 A JP6061995 A JP 6061995A JP H08265984 A JPH08265984 A JP H08265984A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- battery pack
- charging
- discharging
- secondary battery
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、二次電池を内蔵する電
池パックと、この電池パックの充電または放電を行う電
気機器とからなる電源装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device comprising a battery pack containing a secondary battery and electric equipment for charging or discharging the battery pack.
【０００２】[0002]
【従来の技術】従来より、充放電可能なＮｉ−Ｃｄ電池
等を複数本内蔵した電池パックはよく知られている。こ
の電池パックは、充電器に装着されて充電され、再使用
可能とされる。電池パックは、使用する電気機器の駆動
電圧、駆動電流等に適合させ、また使用形態に応じて電
池容量を適宜に決定する必要があるため、多くの種類の
電池パックが開発されている。同様に、充電器において
も、電池パックの種類に応じて充電電流や充電時間を最
適値にする必要があるため、充電器も電池パックの種類
に応じて多種多様のものが開発されている。2. Description of the Related Art Conventionally, a battery pack containing a plurality of chargeable / dischargeable Ni-Cd batteries and the like is well known. This battery pack is attached to a charger, charged, and reusable. Many types of battery packs have been developed because it is necessary to adapt the drive voltage, drive current, etc. of an electric device to be used and to appropriately determine the battery capacity according to the usage form. Similarly, in the charger as well, it is necessary to set the charging current and the charging time to the optimum values according to the type of the battery pack, and therefore various types of chargers have been developed depending on the type of the battery pack.
【０００３】従って、充電器の定格に合致しない電池パ
ックが取り付けられた場合、電池パックが過充電となっ
たり、逆に充電不足となって、充電ミスが生じる恐れが
ある。更に、充電器の故障につながったり、あるいは電
池パックの寿命を早めたりすることもある。Therefore, if a battery pack that does not meet the rating of the charger is attached, the battery pack may be overcharged or, on the contrary, insufficiently charged, resulting in a charging error. Furthermore, it may lead to a failure of the charger or shorten the life of the battery pack.
【０００４】こうした問題を解決するために、実開平３
−３６９７７号公報によれば、電池パック内にマイクロ
コンピュータを内蔵させ、二次電池の電圧や電流に関す
る情報を保存して演算処理し、パソコン本体側と情報の
通信を行うようにしたものがある。[0004] In order to solve these problems
According to Japanese Patent Laid-Open No. 36977, there is one in which a microcomputer is incorporated in a battery pack, information about the voltage and current of a secondary battery is stored and arithmetically processed, and information is communicated with a personal computer side. .
【０００５】[0005]
【発明が解決しようとする課題】前述のようにマイクロ
コンピュータを内蔵した電池パックは、電池パックに内
蔵されている二次電池の情報を容易に認識することがで
き、非常に便利であるが、マイクロコンピュータを内蔵
する電池パックが高価格となってしまう。As described above, the battery pack incorporating the microcomputer is very convenient because it can easily recognize the information of the secondary battery contained in the battery pack. A battery pack with a built-in microcomputer becomes expensive.
【０００６】また、電池パックは、充放電することによ
って繰り返し使用可能ではあるものの、寿命がくれば、
使用不可能となって廃棄されるのが通常であり、電池パ
ック内に高価なマイクロコンピュータを内蔵させる構造
では、非常に無駄である。Although the battery pack can be repeatedly used by charging and discharging, if the life of the battery pack is reached,
It is usually unusable and discarded, and the structure in which an expensive microcomputer is incorporated in the battery pack is very wasteful.
【０００７】更に、電池パック内にマイクロコンピュー
タを配した場合には、その周辺回路も含めて複雑な回路
を設ける必要があり、そしてこのような複雑な回路を設
けることは、電池パックの信頼性を低下させる恐れがあ
る。Further, when the microcomputer is arranged in the battery pack, it is necessary to provide a complicated circuit including the peripheral circuits thereof, and the provision of such a complicated circuit increases the reliability of the battery pack. May decrease.
【０００８】そこで、本発明は、電池パックを高価格と
することなく、電池パックに内蔵されている二次電池の
情報を容易に認識することができ、非常に便利に使用で
きるようにすることを目的とする。Therefore, the present invention makes it possible to easily recognize the information of the secondary battery contained in the battery pack without making the battery pack expensive and to use it very conveniently. With the goal.
【０００９】[0009]
【課題を解決するための手段】本発明は、電池パック
と、この電池パックの充電または放電を行う電気機器と
からなる電源装置であって、前記電池パックは、充放電
可能な二次電池と、この二次電池の充放電を行う充放電
端子と、前記二次電池の電池情報を記憶する記憶部と、
前記記憶部に対する電池情報の出入力を行う第１信号端
子とを有し、前記電気機器は、前記充放電端子に接続さ
れる出力端子と、前記第１信号端子と接続され、前記電
池情報の出入力を行う第２信号端子と、前記電池情報を
演算処理して前記二次電池の充電または放電を制御する
制御回路とを有することを特徴としている。The present invention is a power supply device comprising a battery pack and electric equipment for charging or discharging the battery pack, wherein the battery pack is a rechargeable secondary battery. A charging / discharging terminal for charging / discharging the secondary battery, and a storage unit for storing battery information of the secondary battery,
A first signal terminal for inputting and outputting battery information to and from the storage unit, the electric device is connected to the output terminal connected to the charge / discharge terminal, and the first signal terminal, It is characterized by having a second signal terminal for inputting / outputting and a control circuit for performing arithmetic processing on the battery information to control charging or discharging of the secondary battery.
【００１０】[0010]
【作用】本発明によれば、例えば、電池パック内の二次
電池を充電するために、電池パックを電気機器に装着す
ると、電気機器の制御回路は、電池パックに内蔵された
記憶部に記憶された電池情報を読み出して電池固有デー
タを演算することにより、電気機器に装着された電池パ
ックが適合するものか否かを演算する。そして、適合す
るものであれば、電池状態データを演算して現在の二次
電池の状態を認識する。更に、適合する電池パックが装
着されたと判断すると、電気機器の制御回路は、二次電
池の充電を開始する。According to the present invention, for example, when a battery pack is attached to an electric device in order to charge a secondary battery in the battery pack, the control circuit of the electric device is stored in a storage unit incorporated in the battery pack. By reading the battery information thus obtained and calculating the battery specific data, it is calculated whether or not the battery pack attached to the electric device is suitable. If it is compatible, the battery state data is calculated to recognize the current state of the secondary battery. Further, when it is determined that a suitable battery pack is attached, the control circuit of the electric device starts charging the secondary battery.
【００１１】その後、二次電池の充電が終了すると、制
御回路は、充電終了時点における電池状態データを演算
し、電池パックの記憶部に記憶されているデータを演算
された電池情報データにて更新する。After that, when the charging of the secondary battery is completed, the control circuit calculates the battery state data at the end of charging and updates the data stored in the storage unit of the battery pack with the calculated battery information data. To do.
【００１２】[0012]
【実施例】図１は本発明の一実施例を示しており、電池
パック１は、直列接続された複数本のＮｉ−Ｃｄ電池か
らなる二次電池１１と、二次電池１１の電池温度を検出
する温度検出回路１２と、記憶回路１３とを備えてい
る。記憶回路１３は、二次電池１１に関する電池情報を
記憶する読み書き可能な不揮発性のメモリ回路１４と、
メモリ回路１４に対する電池情報の読み書きを制御する
出入力制御回路１５とからなる。FIG. 1 shows an embodiment of the present invention, in which a battery pack 1 includes a secondary battery 11 composed of a plurality of Ni-Cd batteries connected in series, and a battery temperature of the secondary battery 11. The temperature detection circuit 12 for detecting and the memory circuit 13 are provided. The storage circuit 13 is a readable / writable non-volatile memory circuit 14 that stores battery information about the secondary battery 11,
An input / output control circuit 15 that controls reading and writing of battery information with respect to the memory circuit 14.
【００１３】更に電池パック１は、二次電池１１の充放
電を行う充放電端子１６と、温度検出回路１２の温度信
号を出力する温度端子１７と、メモリ回路１４に対する
電池情報の出入力を行う第１信号端子１８とを備えてい
る。Further, the battery pack 1 performs charging / discharging terminal 16 for charging / discharging the secondary battery 11, a temperature terminal 17 for outputting a temperature signal of the temperature detection circuit 12, and input / output of battery information to / from the memory circuit 14. The first signal terminal 18 is provided.
【００１４】充電回路を内蔵するパソコン等の電気機器
２は、電池パック１を取り付け可能であり、電池パック
１により駆動されたり、電池パック１を充電したりす
る。この電気機器２は、充電用電源回路を内蔵する機器
制御部２１と、充放電制御回路２２とを備えている。充
放電制御回路２２は、トランジスタ、ＦＥＴ等からなる
充放電スイッチ２３と、低抵抗値の電流検出抵抗を含む
充放電電流検出回路２４と、マイクロコンピュータから
なり、電池情報を演算すると共に、二次電池１１の充放
電を制御する充放電制御回路２５とを備えている。A battery pack 1 can be attached to an electric device 2 such as a personal computer having a built-in charging circuit, and is driven by the battery pack 1 or charges the battery pack 1. The electric device 2 includes a device control unit 21 having a charging power supply circuit built therein and a charge / discharge control circuit 22. The charging / discharging control circuit 22 is composed of a charging / discharging switch 23 including a transistor, an FET, etc., a charging / discharging current detecting circuit 24 including a low resistance current detecting resistor, and a microcomputer. A charging / discharging control circuit 25 for controlling charging / discharging of the battery 11 is provided.
【００１５】更に、電気機器２は、充放電端子１６に接
続される出入力端子２６と、温度端子１７に接続される
温度検出端子２７と、第１信号端子１８と接続され、電
池パック１との間で電池情報データの通信を行う第２信
号端子２８とを有する。Further, the electric device 2 is connected to the input / output terminal 26 connected to the charging / discharging terminal 16, the temperature detecting terminal 27 connected to the temperature terminal 17, and the first signal terminal 18, and is connected to the battery pack 1. And a second signal terminal 28 for communicating battery information data between them.
【００１６】メモリ回路１４に記憶される電池情報デー
タとしては、電池固有データ及び電池状態データがあ
る。これら各データは、詳細には表１のようなデータに
て構成されている。The battery information data stored in the memory circuit 14 includes battery specific data and battery status data. Each of these data is composed of the data shown in Table 1 in detail.
【００１７】[0017]
【表１】 [Table 1]
【００１８】電池パック１の出荷時にあっては、電池固
有データ及び電池状態データがメモリ回路１４に記憶さ
れ、電池パック１の充放電が行われる毎に、電池状態デ
ータは更新されて、メモリ回路１４に記憶される。At the time of shipping of the battery pack 1, the battery specific data and the battery status data are stored in the memory circuit 14, and the battery status data is updated every time the battery pack 1 is charged and discharged, and the memory circuit is updated. 14 is stored.
【００１９】更に、充放電制御回路２５は、電池状態デ
ータを演算処理して、表２のような機器報告データを作
成して、機器制御部２１に通信する。Further, the charging / discharging control circuit 25 arithmetically processes the battery state data, creates device report data as shown in Table 2, and communicates with the device control section 21.
【００２０】[0020]
【表２】 [Table 2]
【００２１】斯る電池パック１と電気機器２との動作を
以下に説明する。電気機器２を駆動するために電池パッ
ク１を電気機器２に取り付けると、電池パック１の充放
電端子１６、温度端子１７及び第１信号端子１８は、夫
々電気機器２の出入力端子２６、温度検出端子２７及び
第２信号端子２８と電気的に接続される。The operation of the battery pack 1 and the electric device 2 will be described below. When the battery pack 1 is attached to the electric device 2 to drive the electric device 2, the charging / discharging terminal 16, the temperature terminal 17, and the first signal terminal 18 of the battery pack 1 are connected to the output / input terminal 26 of the electric device 2 and the temperature, respectively. It is electrically connected to the detection terminal 27 and the second signal terminal 28.
【００２２】電気機器２の充放電制御回路２５は、電池
パック１が取り付けられたことを検出して、メモリ回路
１４内に記憶されている電池固有データ及び電池状態デ
ータを読み出して演算を行う。即ち、充放電制御回路２
５は、電池固有データを演算することにより電気機器２
に装着された電池パック１が適合するものか否かを演算
すると共に、適合するものであれば、電池状態データを
演算して現在の二次電池１１の状態を認識する。例え
ば、現容量データを演算し、装着された電池パック１内
の二次電池１１の使用可能時間を認識したり、電池診断
データに基づいて二次電池１１のメモリ効果の有無を認
識する。更に、通信日時データに基づいて、前回の電池
パック１の使用日時からの経過時間を演算することによ
り、二次電池１１の自己放電容量を算出することもでき
る。The charging / discharging control circuit 25 of the electric device 2 detects that the battery pack 1 is attached and reads out the battery specific data and the battery state data stored in the memory circuit 14 to perform an operation. That is, the charge / discharge control circuit 2
5 is an electric device 2 by calculating the battery specific data.
Whether or not the battery pack 1 attached to the battery pack is compatible is calculated, and if it is compatible, the battery state data is calculated to recognize the current state of the secondary battery 11. For example, the present capacity data is calculated to recognize the usable time of the secondary battery 11 in the mounted battery pack 1, or to recognize the presence or absence of the memory effect of the secondary battery 11 based on the battery diagnosis data. Further, the self-discharge capacity of the secondary battery 11 can be calculated by calculating the elapsed time from the last use date and time of the battery pack 1 based on the communication date and time data.
【００２３】装着された電池パック１が適合するもので
あれば、電気機器２の充放電制御回路２５は充放電スイ
ッチ２３をオン状態とし、電池パック１の二次電池１１
の放電を開始する。同時に、充放電制御回路２５は、電
池固有データ及び機器報告データを機器制御部２１に通
信している。従って、機器制御部２１は、これら電池固
有データ及び機器報告データを適宜に表示部（図示しな
い）に表示することができる。If the installed battery pack 1 is compatible, the charging / discharging control circuit 25 of the electric device 2 turns on the charging / discharging switch 23 to turn on the secondary battery 11 of the battery pack 1.
To start discharging. At the same time, the charge / discharge control circuit 25 communicates the battery specific data and the device report data to the device control unit 21. Therefore, the device control unit 21 can appropriately display the battery specific data and the device report data on the display unit (not shown).
【００２４】その後、二次電池１１の放電が終了する
と、充放電制御回路２５は、放電終了時点における電池
状態データを演算し、第２信号端子２８、第１信号端子
１８及び出入力制御回路１５を介して、電池パック１の
メモリ回路１４に記憶されているデータを演算データに
て更新する。従って、この後に電気機器２より電池パッ
ク１が取り外されても、最新の電池情報データが、電池
パック１のメモリ回路１４内に記憶されているので、次
回の電池パック１の放電時において、適切な放電制御を
行うことができる。After that, when the secondary battery 11 is completely discharged, the charge / discharge control circuit 25 calculates the battery state data at the end of the discharge, and the second signal terminal 28, the first signal terminal 18 and the output / input control circuit 15 are calculated. The data stored in the memory circuit 14 of the battery pack 1 is updated with the calculation data via. Therefore, even if the battery pack 1 is removed from the electric device 2 after this, the latest battery information data is stored in the memory circuit 14 of the battery pack 1, so that it is appropriate when the battery pack 1 is discharged next time. Discharge control can be performed.
【００２５】一方、電池パック１内の二次電池１１を充
電するために、電池パック１を電気機器２に装着する場
合においても、前述の場合と同様の動作が行われる。即
ち、充放電制御回路２５は、電池固有データを演算する
ことにより電気機器２に装着された電池パック１が適合
するものか否かを演算すると共に、適合するものであれ
ば、電池状態データを演算して現在の二次電池１１の状
態を認識する。そして、適合する電池パック１が装着さ
れたと判断すると、電気機器２の充放電制御回路２５
は、二次電池１１の充電を開始する。On the other hand, when the battery pack 1 is mounted on the electric device 2 in order to charge the secondary battery 11 in the battery pack 1, the same operation as described above is performed. That is, the charge / discharge control circuit 25 calculates whether or not the battery pack 1 mounted on the electric device 2 is suitable by calculating the battery-specific data, and if so, the battery state data is calculated. The current state of the secondary battery 11 is calculated and recognized. When it is determined that the compatible battery pack 1 is attached, the charge / discharge control circuit 25 of the electric device 2
Starts charging the secondary battery 11.
【００２６】その後、二次電池１１の充電が終了する
と、充放電制御回路２５は、充電終了時点における電池
状態データを演算し、電池パック１のメモリ回路１４に
記憶されているデータを演算データにて更新する。After that, when the charging of the secondary battery 11 is completed, the charging / discharging control circuit 25 calculates the battery state data at the time of completion of the charging, and the data stored in the memory circuit 14 of the battery pack 1 is used as the calculation data. To update.
【００２７】以上のように、本発明においては、電池パ
ック１内には制御回路を設けることなく電池情報データ
を記憶するメモリ回路１４のみを配置し、電池情報デー
タの演算は、電気機器２との通信を通じて充放電制御回
路２５にて全て行うようにしている。従って、電池パッ
ク１は、複雑な制御回路を要することなく、安価にかつ
コンパクトに構成することができる。As described above, in the present invention, only the memory circuit 14 for storing the battery information data is arranged in the battery pack 1 without providing the control circuit, and the calculation of the battery information data is performed by the electric device 2. The charging / discharging control circuit 25 performs all the communication. Therefore, the battery pack 1 can be configured inexpensively and compactly without requiring a complicated control circuit.
【００２８】図２は本発明の他の実施例を示しており、
この実施例は、前述の実施例における、電池情報データ
の出入力を行うための第１信号端子１８及び第２信号端
子２８に代えて、これらの電池情報の出入力を無線にて
行うための、起電力回路３１、アンテナ部３２と、アン
テナ部３３、データ出入力回路３４とを備えたものであ
る。FIG. 2 shows another embodiment of the present invention,
In this embodiment, instead of the first signal terminal 18 and the second signal terminal 28 for inputting / outputting the battery information data in the above-mentioned embodiment, the input / output of the battery information is performed wirelessly. , An electromotive force circuit 31, an antenna section 32, an antenna section 33, and a data input / output circuit 34.
【００２９】[0029]
【発明の効果】本発明は、電池パックと、この電池パッ
クの充電または放電を行う電気機器とからなる電源装置
であって、前記電池パックは、充放電可能な二次電池
と、この二次電池の充放電を行う充放電端子と、前記二
次電池の電池情報を記憶する記憶部と、前記記憶部に対
する電池情報の出入力を行う第１信号端子とを有し、前
記電気機器は、前記充放電端子に接続される出力端子
と、前記第１信号端子と接続され、前記電池情報の出入
力を行う第２信号端子と、前記電池情報を演算処理して
前記二次電池の充電または放電を制御する制御回路とを
有するので、従来のように電池パック内にマイコン等の
高価な回路を設ける必要がない。従って、電池パックを
高価格とすることなく、電池パックに内蔵されている二
次電池の情報を容易に認識することができ、非常に便利
に使用できる。The present invention is a power supply device comprising a battery pack and electric equipment for charging or discharging the battery pack, wherein the battery pack is a rechargeable secondary battery and a secondary battery. A charging / discharging terminal for charging / discharging a battery, a storage unit for storing battery information of the secondary battery, and a first signal terminal for inputting / outputting battery information to / from the storage unit, and the electric device includes: An output terminal connected to the charging / discharging terminal, a second signal terminal connected to the first signal terminal for inputting / outputting the battery information, and an operation process of the battery information to charge the secondary battery or Since it has a control circuit for controlling discharge, it is not necessary to provide an expensive circuit such as a microcomputer in the battery pack as in the conventional case. Therefore, it is possible to easily recognize the information of the secondary battery contained in the battery pack without making the battery pack expensive, and it is possible to use it very conveniently.
【００３０】更に、電池パック内にマイコン及びその周
辺回路を設けていないため、電池パック内部の回路構成
を簡単化することができると共に、信頼性を向上させる
ことができる。Further, since the microcomputer and its peripheral circuits are not provided in the battery pack, the circuit structure inside the battery pack can be simplified and the reliability can be improved.
【図１】本発明の一実施例を示すブロック回路図であ
る。FIG. 1 is a block circuit diagram showing an embodiment of the present invention.
【図２】本発明の他の実施例を示すブロック回路図であ
る。FIG. 2 is a block circuit diagram showing another embodiment of the present invention.
１ 電池パック ２ 電気機器 １１ 二次電池 １３ 記憶回路 １６ 充放電端子 １８ 第１信号端子 ２５ 充放電制御回路 ２６ 出力端子 ２８ 第２信号端子 DESCRIPTION OF SYMBOLS 1 Battery pack 2 Electric equipment 11 Secondary battery 13 Storage circuit 16 Charging / discharging terminal 18 1st signal terminal 25 Charging / discharging control circuit 26 Output terminal 28 2nd signal terminal
Claims (1)
たは放電を行う電気機器とからなる電源装置であって、
前記電池パックは、充放電可能な二次電池と、この二次
電池の充放電を行う充放電端子と、前記二次電池の電池
情報を記憶する記憶部と、前記記憶部に対する電池情報
の出入力を行う第１信号端子とを有し、前記電気機器
は、前記充放電端子に接続される出力端子と、前記第１
信号端子と接続され、前記電池情報の出入力を行う第２
信号端子と、前記電池情報を演算処理して前記二次電池
の充電または放電を制御する制御回路とを有することを
特徴とした電源装置。1. A power supply device comprising a battery pack and electric equipment for charging or discharging the battery pack,
The battery pack includes a rechargeable secondary battery, a charging / discharging terminal for charging / discharging the secondary battery, a storage unit for storing battery information of the secondary battery, and a battery information output to the storage unit. The electric device has a first signal terminal for inputting, and the electric device has an output terminal connected to the charging / discharging terminal;
A second device connected to a signal terminal for inputting and outputting the battery information
A power supply device comprising: a signal terminal; and a control circuit that processes the battery information to control charging or discharging of the secondary battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7060619A JPH08265984A (en) | 1995-03-20 | 1995-03-20 | Power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7060619A JPH08265984A (en) | 1995-03-20 | 1995-03-20 | Power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08265984A true JPH08265984A (en) | 1996-10-11 |
Family
ID=13147486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7060619A Pending JPH08265984A (en) | 1995-03-20 | 1995-03-20 | Power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08265984A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079634A1 (en) * | 1999-06-18 | 2000-12-28 | Matsushita Electric Industrial Co., Ltd. | Method for detecting deterioration of electrochemical device, method for measuring remaining capacity, charger comprising them, and discharge controller |
| JP2003339127A (en) * | 2002-05-21 | 2003-11-28 | Matsushita Electric Ind Co Ltd | Uninterruptible power supply |
| WO2006095563A1 (en) * | 2005-03-10 | 2006-09-14 | Sony Corporation | Method of displaying remaining battery power, and electronic apparatus |
| KR100661451B1 (en) * | 2005-08-11 | 2006-12-26 | 양세철 | Method and apparatus for charging battery |
| JP2007026712A (en) * | 2005-07-12 | 2007-02-01 | Sanyo Electric Co Ltd | Battery pack and electronic equipment |
| JP2007042396A (en) * | 2005-08-02 | 2007-02-15 | Sanyo Electric Co Ltd | Battery pack, and electric apparatus equipped with it |
| JP2007215251A (en) * | 2006-02-07 | 2007-08-23 | Lenovo Singapore Pte Ltd | Charging system for storage battery and charging method |
| JP2007234434A (en) * | 2006-03-01 | 2007-09-13 | Nec Corp | Secondary battery with built-in control circuit of portable information terminal |
| US7439707B2 (en) | 2003-12-09 | 2008-10-21 | Canon Kabushiki Kaisha | Battery, charging device, and image capture system with battery identification means |
| JP2012109260A (en) * | 2005-11-14 | 2012-06-07 | Hitachi Vehicle Energy Ltd | Secondary battery system |
-
1995
- 1995-03-20 JP JP7060619A patent/JPH08265984A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6480003B1 (en) | 1999-06-18 | 2002-11-12 | Matsushita Electric Industrial Co., Ltd. | Method for detecting deterioration of electrochemical device, method for measuring remaining capacity, charger comprising them, and discharge controller |
| WO2000079634A1 (en) * | 1999-06-18 | 2000-12-28 | Matsushita Electric Industrial Co., Ltd. | Method for detecting deterioration of electrochemical device, method for measuring remaining capacity, charger comprising them, and discharge controller |
| JP2003339127A (en) * | 2002-05-21 | 2003-11-28 | Matsushita Electric Ind Co Ltd | Uninterruptible power supply |
| US7439707B2 (en) | 2003-12-09 | 2008-10-21 | Canon Kabushiki Kaisha | Battery, charging device, and image capture system with battery identification means |
| JP2008003100A (en) * | 2005-03-10 | 2008-01-10 | Sony Corp | Battery pack, battery residual capacity display system, and electronic device |
| KR101425219B1 (en) * | 2005-03-10 | 2014-07-31 | 소니 주식회사 | Battery residual quantity display method and electronic equipment |
| US8368356B2 (en) | 2005-03-10 | 2013-02-05 | Sony Corporation | Battery residual quantity display method and electronic equipment |
| US7619536B2 (en) | 2005-03-10 | 2009-11-17 | Sony Corporation | Battery residual quantity display method and electronic equipment |
| WO2006095563A1 (en) * | 2005-03-10 | 2006-09-14 | Sony Corporation | Method of displaying remaining battery power, and electronic apparatus |
| US7864065B2 (en) | 2005-03-10 | 2011-01-04 | Sony Corporation | Battery residual quantity display method and electronic equipment |
| JP2007026712A (en) * | 2005-07-12 | 2007-02-01 | Sanyo Electric Co Ltd | Battery pack and electronic equipment |
| JP2007042396A (en) * | 2005-08-02 | 2007-02-15 | Sanyo Electric Co Ltd | Battery pack, and electric apparatus equipped with it |
| KR100661451B1 (en) * | 2005-08-11 | 2006-12-26 | 양세철 | Method and apparatus for charging battery |
| JP2012109260A (en) * | 2005-11-14 | 2012-06-07 | Hitachi Vehicle Energy Ltd | Secondary battery system |
| US7714533B2 (en) | 2006-02-07 | 2010-05-11 | Lenovo (Singapore) Pte. Ltd. | Battery charging system and method |
| JP2007215251A (en) * | 2006-02-07 | 2007-08-23 | Lenovo Singapore Pte Ltd | Charging system for storage battery and charging method |
| JP2007234434A (en) * | 2006-03-01 | 2007-09-13 | Nec Corp | Secondary battery with built-in control circuit of portable information terminal |
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