JPH0365027A - Battery charger provided with discharger - Google Patents

Battery charger provided with discharger

Info

Publication number
JPH0365027A
JPH0365027A JP1198933A JP19893389A JPH0365027A JP H0365027 A JPH0365027 A JP H0365027A JP 1198933 A JP1198933 A JP 1198933A JP 19893389 A JP19893389 A JP 19893389A JP H0365027 A JPH0365027 A JP H0365027A
Authority
JP
Japan
Prior art keywords
battery
control circuit
charge
discharge
charging
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
Application number
JP1198933A
Other languages
Japanese (ja)
Inventor
Toshiyuki Okamura
俊之 岡村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1198933A priority Critical patent/JPH0365027A/en
Publication of JPH0365027A publication Critical patent/JPH0365027A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

PURPOSE:To recover the capacity of an NiCd battery to a predetermined maximum capacity by discharging a used battery deeply again before it is recharged. CONSTITUTION:Main section of a battery charger comprises a charge control circuit 1, a discharge control circuit 2, a charge/discharge switching control circuit 3, a switch 4, and an NiCd battery 7. When a used NiCd battery is charged, the charge/discharge switching control circuit 3 controls the switch 4 to connect the battery 7 with the discharge control circuit 2 thus charging the discharge control circuit 2 upto a predetermined voltage. Then the control circuit 3 controls the switch 4 to connect the battery 7 with the charge control circuit 1 thus charging the NiCd battery 7 and recoverying the capacity thereof upto the maximum level. By such arrangement, the NiCd battery can be used with optimal charge/discharge cycle and the battery performance can be fully exhibited.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、カメラ一体型VTRなどのポータプル機器の
主電源として多く用いられているノ<ツテリーヲ充電す
るための充電器に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a battery charger for charging a battery, which is often used as a main power source for portable equipment such as a camera-integrated VTR.

従来の技術 近年、ポータブ/′L/機器の主電源としては、ニノケ
ルカドミウム(N1Cd)バッテリーが多く用いられて
いる。このHiedバッテリーは、専用の充電器で充電
することによう、何回でも(多くは数100回)繰り返
し使うことができる。
BACKGROUND OF THE INVENTION In recent years, Ninocer cadmium (N1Cd) batteries have been widely used as the main power source for portable devices. This Hied battery can be used repeatedly (often hundreds of times) by charging it with a dedicated charger.

発明が解決しようとする課題 一般的に、N1C(1バツテリーの容量を性能いっばい
引き出すためには、完全充電を行うとともに、放電時は
できる限り深い放電状態まで使い切ることが重要であり
、このような充放電形態で何回も使用することが望まし
い。
Problems to be Solved by the Invention Generally, in order to bring out the maximum performance from the capacity of an N1C (1 battery), it is important to fully charge the battery and use it to the deepest possible discharge state when discharging. It is desirable to use the battery many times in a charging/discharging mode.

しかしながら、例えばカメラ一体型VTRを使用する人
は、必ずしもその機器のアンダーカット電圧(例えば6
v電池使用の機器では約s、sV)昔で撮影を続けるも
のではなく、短時間の使用であってもバッテリー命取り
はずし、再び充電することがある。この様な場合は、充
電後のバッテリーの容量が、バッテリーの終止電圧に依
存して若干低下する傾向がみられるという問題点を有し
ていた。
However, for example, a person who uses a camera-integrated VTR does not necessarily have to worry about the undercut voltage of the equipment (for example, 6
Devices that use V batteries (approximately sV) are not used for continuous shooting, and even if used for a short time, the battery may die and be recharged. In such a case, there is a problem in that the capacity of the battery after charging tends to decrease slightly depending on the final voltage of the battery.

本発明は上記問題点に鑑み、使用済みバッテリーe再び
充電する前に、−度そのバッテリー金深く放電させるこ
とによシ、NiCdバッテリーの容量を所定の最大容量
lで復活させることができる充電器を提供するものであ
る。
In view of the above-mentioned problems, the present invention provides a charger that can restore the capacity of a NiCd battery to a predetermined maximum capacity by deeply discharging the used battery one more time before charging it again. It provides:

課題を解決するための手段 本発明は、接続されたバッテリーの残容量を検出し、使
用後のバッテリーであれば機器の動作電圧のアンダーカ
ット電圧以下の所定値すで一旦放電させたのち、充電に
移るという構成金偏えたものである。
Means for Solving the Problems The present invention detects the remaining capacity of a connected battery, and if the battery is used, it is discharged to a predetermined value below the undercut voltage of the device's operating voltage, and then charged. The amount of money that will be spent on the project will be biased.

作用 本発明は上記した構成によって、充電前に所定電圧まで
放電することにより、バッテリーの容量を全部出しきっ
たことになり、その後完全充電をすることによってバッ
テリーを所定の最大容量に筐で復活させることが可能に
なる。
Effect: With the above-described configuration, the present invention discharges the battery to a predetermined voltage before charging, thereby draining the battery to its full capacity, and then fully charging the battery to restore the battery to the predetermined maximum capacity in the casing. becomes possible.

実施例 以下、本発明の放電器付きパンテリーチャージャーの実
施例について、図面上参照しながら説明する。
Embodiments Hereinafter, embodiments of the pantry charger with discharge device of the present invention will be described with reference to the drawings.

第1図は本発明の第1の実施例のブロック図を示すもの
である。第1図にかいて充電制御回路1は、従来のバノ
テリー充電器である。放電制御回路2は、充電前にバッ
テリーの残容量を放電させるための放電器である。第1
の実施例では、バッテリー充放電切換制御回路3によシ
、バッテリニの残容量を検知し、放電させた後充電に移
るか、あるいは直接充電に移るかを制御する。即ちバッ
テリー充放電切換制御回路3により切換器4金切換る構
成である。なお、7はNiCdバッテリー8はバッテリ
ー接続端子である。
FIG. 1 shows a block diagram of a first embodiment of the present invention. The charging control circuit 1 shown in FIG. 1 is a conventional battery charger. The discharge control circuit 2 is a discharger for discharging the remaining capacity of the battery before charging. 1st
In this embodiment, the battery charge/discharge switching control circuit 3 detects the remaining capacity of the battery 2 and controls whether to proceed to charging after discharging or to proceed directly to charging. That is, the configuration is such that the battery charging/discharging switching control circuit 3 switches the switching device 4. Note that 7 is a battery connection terminal for the NiCd battery 8.

以上のように本実施例によれば、充電済みのバッテリー
に対しては、放電に移ることな〈従来の充電器と同じ動
作をするが、使用後のバッテリーに対しては、−旦、N
iCdバッテリーの最適な終止電圧(eVバッテリーで
はrs、o V以下)まで放電してから充電するので、
バッテリーに対して常に最良な充放電サイクμを繰9返
すことができる。
As described above, according to this embodiment, a charged battery does not start discharging (it operates in the same way as a conventional charger), but a used battery does not start discharging until -1
Since the iCd battery is discharged to its optimal final voltage (less than rs, o V for eV batteries) and then charged,
The best charging/discharging cycle μ can always be repeated for the battery.

以下、本発明の第2の実施例について図面上参照しなが
ら説明する。
A second embodiment of the present invention will be described below with reference to the drawings.

第2図は本発明の第2の実施例のブロック図である。同
図に釦いて、充電制御回路1.放電制御回路2.バッテ
リー充放電切換制御回路3は、第1図の構成と同様なも
のである。第1図の構成と異なるのは、バッテリー充放
電切換制御を動作させるためのモード切換スインチロf
e設けた点である。
FIG. 2 is a block diagram of a second embodiment of the invention. Click the button in the same figure to select charging control circuit 1. Discharge control circuit 2. The battery charge/discharge switching control circuit 3 has the same configuration as that shown in FIG. What is different from the configuration shown in Figure 1 is the mode switching switch f for operating battery charge/discharge switching control.
This is the point provided by e.

上記のように構成された充電器について、以下その動作
を説明する。
The operation of the charger configured as described above will be described below.

モード切換スイッチ54オンにしてバッテリー充放電切
換制御回路3を動作させた場合は、第1の実施例と同様
な動作をする。すなわち第2図の切換器6は第1の切換
器4と同じ動作となる。
When the mode changeover switch 54 is turned on and the battery charge/discharge changeover control circuit 3 is operated, the operation is similar to that of the first embodiment. That is, the switch 6 in FIG. 2 operates in the same way as the first switch 4.

次にモード切換スイッチ6をオフにしてバッテリー充放
電切換制御回路3を働かせないようにした場合は、切換
器6は常に充電制御回路1に接続され、つまり従来の充
電器と同じように充電のみを行うモードになる。
Next, when the mode selector switch 6 is turned off to disable the battery charge/discharge selector control circuit 3, the selector 6 is always connected to the charge control circuit 1, which means that it can only be used for charging like a conventional charger. mode.

以上のように、モード切換スイッチ5を設けることによ
シ、通常はオンとなしてバッテリー充放電切換制御回路
3を働かせてバッテリーに対して最良の充放電サイク/
′L/ヲ繰9返すが、どうしても早く充電する必要があ
る場合は、このスイッチ6をオフにしてモードを切り換
えることによシ、従来の充電器と同じように充電のみ金
行うことができる。
As described above, by providing the mode changeover switch 5, the battery charging/discharging switching control circuit 3 is normally turned on so that the best charging/discharging cycle is set for the battery.
I repeat 9 times, if you really need to charge quickly, you can simply charge the battery in the same way as a conventional charger by turning off this switch 6 and changing the mode.

発明の効果 以上のように本発明によれば、バッテリー金最適な充放
電サイクルで使用することができ、バッテリーの性能を
充分に発揮させることができる。
Effects of the Invention As described above, according to the present invention, the battery can be used in an optimal charge/discharge cycle, and the performance of the battery can be fully exhibited.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の第1の実施例のブロック図、第2図は
本発明の第2の実施例のブロック図である。 1・・・・・・充電制御回路、2・・・・・・放電制御
回路、3・・バッテリー充放電切換制御回路、4・・・
・・切換器。
FIG. 1 is a block diagram of a first embodiment of the invention, and FIG. 2 is a block diagram of a second embodiment of the invention. 1... Charging control circuit, 2... Discharging control circuit, 3... Battery charge/discharge switching control circuit, 4...
...Switcher.

Claims (1)

【特許請求の範囲】[Claims] 充電制御回路と、機器の動作電圧のアンダーカット電圧
以下の所定値まで放電させる放電制御回路と、接続され
たバッテリーの残容量を検出し残容量が所定の容量に達
していないバッテリーについては充電前にあらかじめ放
電させるように前記充電制御回路と放電制御回路とを自
動的に切換えるバッテリー充放電切換制御回路を設けた
ことを特徴とする放電器付きバッテリー充電器。
A charging control circuit, a discharging control circuit that discharges to a predetermined value below the undercut voltage of the device's operating voltage, and a discharge control circuit that detects the remaining capacity of the connected battery, and if the remaining capacity has not reached the predetermined capacity, the battery is discharged before charging. A battery charger with a discharger, characterized in that a battery charge/discharge switching control circuit is provided for automatically switching between the charging control circuit and the discharging control circuit so that the battery is discharged in advance.
JP1198933A 1989-07-31 1989-07-31 Battery charger provided with discharger Pending JPH0365027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1198933A JPH0365027A (en) 1989-07-31 1989-07-31 Battery charger provided with discharger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1198933A JPH0365027A (en) 1989-07-31 1989-07-31 Battery charger provided with discharger

Publications (1)

Publication Number Publication Date
JPH0365027A true JPH0365027A (en) 1991-03-20

Family

ID=16399385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1198933A Pending JPH0365027A (en) 1989-07-31 1989-07-31 Battery charger provided with discharger

Country Status (1)

Country Link
JP (1) JPH0365027A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0560323U (en) * 1992-01-28 1993-08-10 松下電工株式会社 Electric toothbrush device
US5371400A (en) * 1992-11-09 1994-12-06 Fuji Electric Co., Ltd. Semiconductor diode structure
US5561313A (en) * 1993-04-22 1996-10-01 Fuji Electric Co., Ltd. Protective diode for transistor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62193517A (en) * 1986-02-20 1987-08-25 キヤノン株式会社 Secondary battery charger
JPH01270739A (en) * 1988-04-22 1989-10-30 Nec Corp Charging system
JPH02106140A (en) * 1988-10-13 1990-04-18 Fuji Photo Film Co Ltd Charger
JPH02193534A (en) * 1988-10-13 1990-07-31 Sanyo Electric Co Ltd Charging and discharging control mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62193517A (en) * 1986-02-20 1987-08-25 キヤノン株式会社 Secondary battery charger
JPH01270739A (en) * 1988-04-22 1989-10-30 Nec Corp Charging system
JPH02106140A (en) * 1988-10-13 1990-04-18 Fuji Photo Film Co Ltd Charger
JPH02193534A (en) * 1988-10-13 1990-07-31 Sanyo Electric Co Ltd Charging and discharging control mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0560323U (en) * 1992-01-28 1993-08-10 松下電工株式会社 Electric toothbrush device
US5371400A (en) * 1992-11-09 1994-12-06 Fuji Electric Co., Ltd. Semiconductor diode structure
US5561313A (en) * 1993-04-22 1996-10-01 Fuji Electric Co., Ltd. Protective diode for transistor

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