JP2000060014A - Method and equipment for constant-current/constant voltage charging - Google Patents
Method and equipment for constant-current/constant voltage chargingInfo
- Publication number
- JP2000060014A JP2000060014A JP10231716A JP23171698A JP2000060014A JP 2000060014 A JP2000060014 A JP 2000060014A JP 10231716 A JP10231716 A JP 10231716A JP 23171698 A JP23171698 A JP 23171698A JP 2000060014 A JP2000060014 A JP 2000060014A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- channel
- constant
- current
- constant voltage
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、充電対象となる電
池を定電流／定電圧充電する方法及び装置に関し、特
に、リチウムイオン電池や鉛蓄電池を定電流／定電圧充
電する方法及び装置に関する。The present invention relates to a method and an apparatus for constant current / constant voltage charging of a battery to be charged, and more particularly to a method and an apparatus for constant current / constant voltage charging of a lithium ion battery or a lead storage battery.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】リチウ
ムイオン電池や鉛蓄電池、特にリチウムイオン電池の充
電には周知のように定電流／定電圧充電が用いられる。
この充電方法は、図１に示すように、充電の進行に伴っ
て徐々に充電電圧が上昇し、設定された充電時の最大電
圧（上限規定充電電圧）に達した後に定電圧充電に移行
し、ある時間の経過後に充電が完了するというものであ
る。この定電流／定電圧充電の特徴は、充電初期（定電
流充電）は時間当たりの充電量が多く、定電圧充電にな
ると徐々に充電電流が減少して時間当たりの充電量も徐
々に減少することにある。またこのような充電のための
装置は、充電時の最大電圧と充電に要する最大電流を精
度よく一定に保ち得る回路構成を要するものとなってお
り、種々の装置が知られている。なお上限規定充電電圧
及び電流値は電池の種類によって異なるが、通常は電圧
４．１〜４．２Ｖ、電流は０．５Ｃ程度である。2. Description of the Related Art As is well known, constant current / constant voltage charging is used for charging lithium ion batteries and lead storage batteries, especially lithium ion batteries.
In this charging method, as shown in FIG. 1, the charging voltage gradually rises with the progress of charging, and after reaching a set maximum voltage at the time of charging (upper limit charging voltage), the mode shifts to constant voltage charging. That is, the charging is completed after a certain time has elapsed. The feature of the constant current / constant voltage charging is that the initial charge (constant current charge) has a large amount of charge per time, and when the charge becomes constant voltage, the charge current gradually decreases, and the charge amount per hour also gradually decreases. It is in. In addition, such a device for charging requires a circuit configuration capable of accurately and constantly maintaining the maximum voltage during charging and the maximum current required for charging, and various devices are known. Note that the upper limit prescribed charging voltage and current value vary depending on the type of battery, but the voltage is usually 4.1 to 4.2 V and the current is about 0.5 C.
【０００３】ところで上述のような定電流／定電圧充電
により、複数個のリチウムイオン電池や鉛蓄電池を充電
しようとする場合、従来は多連順次充電、即ち、充電装
置１個で、順番に電池を１個ずつ充電してゆくものであ
る。この方式の場合、１個の電池の満充電を検知して、
次の電池の充電に進むことになるので、対象となる複数
個の電池全てを充電完了状態とするには、１個の電池を
満充電とするのに要する時間（例えばリチウムイオン電
池では２〜３時間）の個数倍の時間が掛かる。In the case where a plurality of lithium-ion batteries or lead-acid batteries are to be charged by the above-described constant current / constant voltage charging, conventionally, multiple batteries are sequentially charged, that is, the batteries are sequentially charged by one charging device. Are charged one by one. In the case of this method, when the full charge of one battery is detected,
Since the process proceeds to the charging of the next battery, the time required for one battery to be fully charged (for example, 2 to 2 in the case of a lithium ion battery) is required to bring all of the plurality of target batteries into a fully charged state. 3 hours).
【０００４】例えば４本のリチウムイオン電池をこの多
連順次充電によって充電するには、８〜１２時間を必要
とする。従って、この種の電池の使用者が複数本の電池
を充電するには、一般的には夜間に行うようにしてお
り、その場合、一晩中充電し続けるようになるのが通例
となっている。[0004] For example, it takes 8 to 12 hours to charge four lithium-ion batteries by the multiple sequential charging. Therefore, a user of this type of battery generally charges a plurality of batteries at night, in which case it is customary to continue charging overnight. I have.
【０００５】このような時間の掛かる充電方法、装置に
ついて改善が望まれることは当然であるが、従来は有効
な方法、装置が開発されていなかった。It is a matter of course that such a time-consuming charging method and device need to be improved, but no effective method and device have been developed in the past.
【０００６】[0006]
【課題を解決するための手段】そこで本願発明者等は、
リチウムイオン電池あるいは鉛蓄電池に対する定電流／
定電圧充電では、充電を開始して定電流充電領域を経過
し、定電圧充電領域に至ると充電に必要な電流量が低下
し、充電器の持つ最大充電容量に対して余剰電力が発生
することに着目し、複数の電池を同時に短い時間で充電
できる定電流／定電圧充電方法及び装置を開発した。Means for Solving the Problems Accordingly, the present inventors have proposed:
Constant current for lithium-ion batteries or lead-acid batteries
In constant-voltage charging, charging starts and passes through the constant-current charging area.When the charging reaches the constant-voltage charging area, the amount of current required for charging decreases, and surplus power is generated for the maximum charging capacity of the charger. Focusing on this, a constant current / constant voltage charging method and device capable of simultaneously charging a plurality of batteries in a short time have been developed.
【０００７】すなわち本発明に係る定電流／定電圧充電
方法のうち請求項１に係るものは、定電流／定電圧以外
の電流制限を行わずに充電する主チャンネルと、充電器
の最大充電容量に対して発生する余剰電力を用い最大電
力による電流制限を行いつつ充電する副チャンネルと
を、該副チャンネルが定電圧充電領域に達した時点で上
記主チャンネルに切り替え、一個の充電器で充電対象と
なる複数個の電池を充電することを特徴とする。In other words, the constant current / constant voltage charging method according to the first aspect of the present invention is directed to a main channel for charging without limiting current other than constant current / constant voltage, and a maximum charging capacity of the charger. When the sub-channel reaches the constant-voltage charging area, the sub-channel to be charged while performing current limitation by the maximum power using the surplus power generated for the sub-channel is switched to the main channel, and the charging target is charged by one charger. And charging a plurality of batteries.
【０００８】また請求項２に係る定電流／定電圧充電方
法は、上記副チャンネルを複数とし、充電中は常時一つ
の副チャンネルと一つ以上の主チャンネルが存在する状
態で充電することを特徴とする。According to a second aspect of the present invention, there is provided a constant current / constant voltage charging method, wherein a plurality of the sub-channels are used, and charging is performed in a state where one sub-channel and one or more main channels are always present during charging. And
【０００９】さらに請求項３に係る定電流／定電圧充電
方法は、一個の充電器で三個以上の電池を充電する場合
に、充電開始時には上記主、副チャンネルとも一つとし
て二個の電池に対する充電を行いつつ、上記副チャンネ
ルから主チャンネルへの切り替えごとに残りの電池に対
する上記副チャンネルでの充電を開始させてゆくことを
特徴とする。Further, in the constant current / constant voltage charging method according to claim 3, when three or more batteries are charged by one charger, at the start of charging, two batteries are used as one for the main and sub channels. And charging the remaining batteries in the sub-channel every time the sub-channel is switched to the main channel.
【００１０】また本発明に係る定電流／定電圧充電装置
のうち請求項４に係るものは、一個の充電器で充電対象
となる複数個の電池を充電する装置であって、複数の定
電流／定電圧制御を行う手段と、充電対象となる電池を
セットする複数のセット手段と、上記定電流／定電圧制
御手段による充電形態を切り替える手段とからなり、上
記定電流／定電圧制御手段による充電形態を、定電流／
定電圧以外の電流制限を行わずに充電する主チャンネル
と、充電器の最大充電容量に対して発生する余剰電力を
用い最大電力による電流制限を行いつつ充電する副チャ
ンネルとによるものとし、上記切り替え手段が、上記副
チャンネルが定電圧充電領域に達した時点で上記主チャ
ンネルに切り替えることを特徴とする。According to a fourth aspect of the present invention, there is provided a constant current / constant voltage charging apparatus for charging a plurality of batteries to be charged by a single charger. / Constant voltage control means, a plurality of setting means for setting a battery to be charged, and means for switching the charging mode by the constant current / constant voltage control means. Change the charging mode to constant current /
The above-mentioned switching is based on the main channel charging without performing current limitation other than the constant voltage, and the sub-channel charging while performing current limitation by maximum power using surplus power generated for the maximum charging capacity of the charger. The means switches to the main channel when the sub-channel reaches the constant voltage charging area.
【００１１】[0011]
【発明の実施の形態】以下本発明の実施の形態を図面を
参照して説明する。図２は本発明に係る定電流／定電圧
充電装置の一実施形態の概略的回路図である。本実施形
態の装置は、主に、４個の定電流／定電圧充電制御回路
１−１〜１−４と、マイクロコンピュータ及びその周辺
機器を利用した主制御回路２と、充電対象となる複数個
の電池をセットする複数のチャンネルＣＨ−１〜ＣＨ−
４、電力測定・定電流制御回路３、電源回路４、及び電
力測定・定電流制御回路３と各定電流／定電圧充電制御
回路１の間に並列に接続する４個のスイッチング回路Ｓ
Ｗ−１〜ＳＷ−４とからなる。なお図示の例は充電対象
となる電池の本数を４本としているが、本発明はこれに
限定されない。また各回路の具体的な構成は、適宜の公
知の回路を採用すればよいので、これも詳細な図示は省
略する。Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a schematic circuit diagram of one embodiment of the constant current / constant voltage charging device according to the present invention. The device according to the present embodiment mainly includes four constant current / constant voltage charging control circuits 1-1 to 1-4, a main control circuit 2 using a microcomputer and its peripheral devices, and a plurality of charging targets. A plurality of channels CH-1 to CH-
4, power measurement / constant current control circuit 3, power supply circuit 4, and four switching circuits S connected in parallel between power measurement / constant current control circuit 3 and each constant current / constant voltage charge control circuit 1.
W-1 to SW-4. In the illustrated example, the number of batteries to be charged is four, but the present invention is not limited to this. In addition, since a specific configuration of each circuit may be an appropriate known circuit, detailed illustration thereof is also omitted.
【００１２】主制御回路２は、定電流／定電圧充電制御
回路１−１〜１−４に対して充電オン／オフ制御信号を
出力するとともに、スイッチング回路ＳＷ−１〜ＳＷ−
４に対して副チャンネル選択信号を出力するように接続
してある。電力測定・定電流制御回路３は、電源回路４
と主制御回路２の間に介在し、定電流／定電圧充電制御
回路１−１〜１−４に対してスイッチング回路ＳＷ−１
〜ＳＷ−４を介して上限電流を規定する電流制限信号を
供給するとともに、主制御回路２に対して電力ピーク検
出信号を供給するように接続してある。電源回路４は、
１本の電池の定電流充電に必要な電流量に対して余裕を
持たせてあり、充電時に余剰電力が発生し得るようにな
っている。The main control circuit 2 outputs charge on / off control signals to the constant current / constant voltage charge control circuits 1-1 to 1-4, and switches the switching circuits SW-1 to SW-.
4 is connected so as to output a sub-channel selection signal. The power measurement / constant current control circuit 3 includes a power supply circuit 4
And a switching circuit SW-1 for the constant current / constant voltage charging control circuits 1-1 to 1-4.
A current limiting signal for defining the upper limit current is supplied through SW-4, and a power peak detection signal is supplied to the main control circuit 2. The power supply circuit 4
A margin is provided for the amount of current required for constant-current charging of one battery, and surplus power can be generated during charging.
【００１３】本実施形態装置による充電形態は、複数の
チャンネルＣＨ−１〜ＣＨ−４を、定電流／定電圧以外
の電流制限を行わずに充電する主チャンネルと、最大充
電容量に対して発生する余剰電力を用いて最大電力によ
る電流制限を行いつつ充電する副チャンネルとに分けて
図２に示すように充電する。The charging mode of the apparatus according to the present embodiment is applied to a main channel for charging a plurality of channels CH-1 to CH-4 without limiting current other than a constant current / constant voltage and a maximum charging capacity. As shown in FIG. 2, charging is performed while limiting the current by the maximum power using the surplus power.
【００１４】図３は本発明に係る定電流／定電圧充電方
法の一実施形態の充電特性図であり、図中の４本の充電
特性を示す線に対応するチャンネルと同一の符号を付し
て示してある。この図３をも参照して本実施形態方法、
装置の動作を説明する。まず充電しようとする４本の例
えばリチウムイオン電池をチャンネルＣＨ−１〜ＣＨ−
４にセットし、図示せぬ交流電源から電源回路４を介し
て充電を開始する。この充電開始時、主制御回路２はチ
ャンネルＣＨ−１を主チャンネルとし、これにセットし
たリチウムイオン電池に定電流／定電圧充電を開始させ
る。このチャンネルＣＨ−１における充電は、他のチャ
ンネルに電力を奪われることなく充電完了まで主チャン
ネルとして充電を行う。また主制御回路２はチャンネル
ＣＨ−１での充電開始直後あるいは充電開始と同時にス
イッチング回路ＳＷ−２に対して副チャンネル選択信号
を送出することによってチャンネルＣＨ−２を副チャン
ネルとし、これにセットしたリチウムイオン電池に対し
て電源回路４から余剰電力を供給して充電を開始させ
る。この時点から電源回路４は最大電力を供給し続け
る。FIG. 3 is a charging characteristic diagram of an embodiment of the constant current / constant voltage charging method according to the present invention. In FIG. 3, the same reference numerals are assigned to the channels corresponding to the four lines indicating the charging characteristics in the figure. Shown. With reference to FIG.
The operation of the device will be described. First, for example, four lithium-ion batteries to be charged are connected to channels CH-1 to CH-.
The charging is started from an AC power supply (not shown) via the power supply circuit 4. At the start of the charging, the main control circuit 2 sets the channel CH-1 as the main channel, and causes the lithium ion battery set therein to start the constant current / constant voltage charging. The charging in the channel CH-1 is performed as the main channel until the charging is completed without the power being taken off by the other channels. The main control circuit 2 sends the sub-channel selection signal to the switching circuit SW-2 immediately after the start of charging on the channel CH-1 or simultaneously with the start of charging, thereby setting the channel CH-2 as the sub-channel and setting it to this. Surplus power is supplied from the power supply circuit 4 to the lithium ion battery to start charging. From this point, the power supply circuit 4 continues to supply the maximum power.
【００１５】チャンネルＣＨ−１にセットしたリチウム
イオン電池に対する充電が定電流領域から定電圧領域に
移行すると、充電に必要な電流量が低下していって最大
充電容量に対する余剰電力が大きくなっていくので、こ
れにつれてチャンネルＣＨ−２にセットしたリチウムイ
オン電池に対する充電電流も増加する。チャンネルＣＨ
−１にセットしたリチウムイオン電池に対しては主チャ
ンネルとしての充電を継続させる。When the charging of the lithium ion battery set in channel CH-1 shifts from the constant current region to the constant voltage region, the amount of current required for charging decreases, and the surplus power with respect to the maximum charging capacity increases. Accordingly, the charging current for the lithium ion battery set in channel CH-2 increases accordingly. Channel CH
The charge as the main channel is continued for the lithium ion battery set to -1.
【００１６】そしてチャンネルＣＨ−２にセットしたリ
チウムイオン電池に対する充電が定電圧領域に達する
と、スイッチング回路ＳＷ−２に対する副チャンネル選
択信号の送出を止めてチャンネルＣＨ−２を主チャンネ
ルに切り替え、上記と同様にしてチャンネルＣＨ−３を
副チャンネルとし、これにセットしたリチウムイオン電
池に対して電源回路４から余剰電力を供給し、充電を開
始させる。この時点でチャンネルＣＨ−１、２が主チャ
ンネル、チャンネルＣＨ−３が副チャンネルである。When the charging of the lithium ion battery set in the channel CH-2 reaches the constant voltage region, the transmission of the sub-channel selection signal to the switching circuit SW-2 is stopped, and the channel CH-2 is switched to the main channel. Channel CH-3 is set as a sub-channel in the same manner as described above, and the surplus power is supplied from the power supply circuit 4 to the lithium ion battery set therein to start charging. At this time, channels CH-1, CH2 are the main channels, and channel CH-3 is the subchannel.
【００１７】その後、チャンネルＣＨ−３にセットした
リチウムイオン電池に対する充電が定電圧領域に達する
と、上記と同様にしてチャンネルＣＨ−３を主チャンネ
ルに切り替え、さらにチャンネルＣＨ−４を副チャンネ
ルとし、これにセットしたリチウムイオン電池に対して
電源回路４から余剰電力を供給し、充電を開始させる。
この時点でチャンネルＣＨ−１、２、３が主チャンネ
ル、チャンネルＣＨ−４が副チャンネルである。Thereafter, when the charging of the lithium ion battery set in the channel CH-3 reaches the constant voltage region, the channel CH-3 is switched to the main channel in the same manner as described above, and the channel CH-4 is set as the sub-channel. Surplus electric power is supplied from the power supply circuit 4 to the lithium ion battery set therein, and charging is started.
At this time, channels CH-1, CH2 and CH3 are main channels, and channel CH-4 is a subchannel.
【００１８】そしてチャンネルＣＨ−４にセットしたリ
チウムイオン電池に対する充電も定電圧領域に達する
と、全チャンネルＣＨ−１〜１−４を主チャンネルとし
て同時充電を行う。この状態は、４本のリチウムイオン
電池に対して１台の充電器で４チャンネル同時に充電す
るのと同じ状態になる。さらに４本のリチウムイオン電
池が満充電の状態になると、主制御回路２は全チャンネ
ルＣＨ−１〜１−４に対してトリクル充電を行わせる。
トリクル充電は図中点線で示す。When the charging of the lithium ion battery set in the channel CH-4 also reaches the constant voltage region, simultaneous charging is performed using all the channels CH-1 to 1-4 as main channels. This state is the same state as charging four channels simultaneously with one charger for four lithium ion batteries. When the four lithium ion batteries are fully charged, the main control circuit 2 performs trickle charging on all the channels CH-1 to CH-1-4.
The trickle charge is indicated by a dotted line in the figure.
【００１９】なお図３では横軸１目盛りが１５分、縦軸
１目盛りが２５０ｍＡであり、ＣＨ−１にセットしたリ
チウムイオン電池が満充電ではないが充電量が約９５％
となるまでが約１２０〜１３０分、ＣＨ−２にセットし
たリチウムイオン電池が同じく充電量が約９５％となる
までが約１７０〜１８０分、ＣＨ−４にセットしたリチ
ウムイオン電池の充電量が約９５％となるまでが約２７
０〜２８０分となっており、１本当たりとすれば約７０
分弱である。ＣＨ−１にセットしたリチウムイオン電池
の充電量が約９５％となるまでの時間が従来では１本の
電池ごとに必要であったのであるから、かなり必要時間
が短くなっている。In FIG. 3, one scale on the horizontal axis is 15 minutes and one scale on the vertical axis is 250 mA. The lithium ion battery set in CH-1 is not fully charged, but the charged amount is about 95%.
Is about 120 to 130 minutes, the lithium ion battery set in CH-2 is also about 170 to 180 minutes until the charge is about 95%, and the charge of the lithium ion battery set in CH-4 is about 95%. About 27 until it reaches about 95%
0 to 280 minutes, about 70 per bottle
It is a minute. The time required for the charged amount of the lithium-ion battery set to CH-1 to be about 95% was conventionally required for each battery, so that the required time is considerably reduced.
【００２０】[0020]
【発明の効果】本発明に係る定電流／定電圧充電方法及
び定電流／定電圧充電装置は、以上説明してきたよう
に、定電流／定電圧以外の電流制限を行わずに充電する
主チャンネルと、充電器の最大充電容量に対して発生す
る余剰電力を用い最大電力による電流制限を行いつつ充
電する副チャンネルとを、この副チャンネルが定電圧充
電領域に達した時点で主チャンネルに切り替え、一個の
充電器で充電対象となる複数個の電池を充電するように
したので、複数個の電池の満充電に要する時間よりもか
なり短い時間ですべての電池を使用可能な状態に充電す
ることができ、特に多くの本数の電池を使用するものに
とっては非常に便利なものになるという効果がある。As described above, the constant current / constant voltage charging method and the constant current / constant voltage charging apparatus according to the present invention provide a main channel for charging without limiting current other than constant current / constant voltage. And, switching the sub-channel to be charged while performing current limitation by the maximum power using the surplus power generated for the maximum charging capacity of the charger to the main channel when the sub-channel reaches the constant voltage charging area, Since a single charger is used to charge multiple batteries to be charged, it is possible to charge all batteries to a usable state in a much shorter time than the time required to fully charge multiple batteries. This can be very convenient especially for those using a large number of batteries.
【図１】リチウムイオン電池の定電流／定電圧充電によ
る充電特性を示す図である。FIG. 1 is a diagram showing charging characteristics of a lithium ion battery by constant current / constant voltage charging.
【図２】本発明に係る定電流／定電圧充電装置の一実施
形態の回路図である。FIG. 2 is a circuit diagram of one embodiment of a constant current / constant voltage charging device according to the present invention.
【図３】本発明に係る定電流／定電圧充電方法の一実施
形態の充電特性図である。FIG. 3 is a charging characteristic diagram of an embodiment of a constant current / constant voltage charging method according to the present invention.
１−１〜１−４ 定電流／定電圧充電制御回路 ２ 主制御回路 ３ 電力測定・定電流制御回路 ４ 電源回路 ＣＨ−１〜ＣＨ−４ チャンネル ＳＷ−１〜ＳＷ−４ スイッチング回路 1-1 to 1-4 Constant current / constant voltage charging control circuit 2 Main control circuit 3 Power measurement / constant current control circuit 4 Power supply circuit CH-1 to CH-4 Channel SW-1 to SW-4 Switching circuit
Claims (4)
に充電する主チャンネルと、充電器の最大充電容量に対
して発生する余剰電力を用い最大電力による電流制限を
行いつつ充電する副チャンネルとを、該副チャンネルが
定電圧充電領域に達した時点で上記主チャンネルに切り
替え、一個の充電器で充電対象となる複数個の電池を充
電することを特徴とする定電流／定電圧充電方法。1. A main channel for charging without limiting current other than constant current / constant voltage, and a sub-channel for charging while limiting current by maximum power using surplus power generated for a maximum charging capacity of a charger. And switching the channel to the main channel when the sub-channel reaches the constant-voltage charging area, and charging a plurality of batteries to be charged by one charger. Method.
常時一つの副チャンネルと一つ以上の主チャンネルが存
在する状態で充電することを特徴とする請求項１の定電
流／定電圧充電方法。2. The constant current / constant voltage charging method according to claim 1, wherein the plurality of sub-channels are used, and charging is performed in a state where one sub-channel and one or more main channels are always present during charging. .
る場合に、充電開始時には上記主、副チャンネルとも一
つとして二個の電池に対する充電を行いつつ、上記副チ
ャンネルから主チャンネルへの切り替えごとに残りの電
池に対する上記副チャンネルでの充電を開始させてゆく
ことを特徴とする請求項２の定電流／定電圧充電方法。3. When three or more batteries are charged by a single charger, at the start of charging, the two main batteries are charged from the sub-channel to the main channel while charging the two main batteries as one. 3. The constant current / constant voltage charging method according to claim 2, wherein charging of the remaining batteries in the sub-channel is started each time the switching is performed.
電池を充電する装置であって、複数の定電流／定電圧制
御を行う手段と、充電対象となる電池をセットする複数
のセット手段と、上記定電流／定電圧制御手段による充
電形態を切り替える手段とからなり、上記定電流／定電
圧制御手段による充電形態を、定電流／定電圧以外の電
流制限を行わずに充電する主チャンネルと、充電器の最
大充電容量に対して発生する余剰電力を用い最大電力に
よる電流制限を行いつつ充電する副チャンネルとによる
ものとし、上記切り替え手段が、上記副チャンネルが定
電圧充電領域に達した時点で上記主チャンネルに切り替
えることを特徴とする定電流／定電圧充電装置。4. An apparatus for charging a plurality of batteries to be charged by a single charger, comprising: means for performing a plurality of constant current / constant voltage controls; and a plurality of sets for setting the batteries to be charged. Means for switching the charging mode by the constant current / constant voltage control means, and charging the charging mode by the constant current / constant voltage control means without limiting the current other than the constant current / constant voltage. Channel and a sub-channel that performs charging while performing current limitation by the maximum power using surplus power generated with respect to the maximum charging capacity of the charger, and the switching means sets the sub-channel to reach a constant voltage charging area. A constant-current / constant-voltage charging device, which switches to the main channel at the point of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10231716A JP2000060014A (en) | 1998-08-18 | 1998-08-18 | Method and equipment for constant-current/constant voltage charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10231716A JP2000060014A (en) | 1998-08-18 | 1998-08-18 | Method and equipment for constant-current/constant voltage charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000060014A true JP2000060014A (en) | 2000-02-25 |
Family
ID=16927906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10231716A Pending JP2000060014A (en) | 1998-08-18 | 1998-08-18 | Method and equipment for constant-current/constant voltage charging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000060014A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100793194B1 (en) * | 2001-07-05 | 2008-01-10 | 엘지전자 주식회사 | An apparatus and method for charging multi battery |
| WO2015016184A1 (en) * | 2013-07-31 | 2015-02-05 | 日本電気株式会社 | Power management system and power management method |
| CN109786873A (en) * | 2018-12-21 | 2019-05-21 | 安徽力普拉斯电源技术有限公司 | A kind of fast charge method of power lead storage battery |
| JP2021027653A (en) * | 2019-08-02 | 2021-02-22 | 古河電気工業株式会社 | Charging device and charging method |
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| JP7247052B2 (en) | 2019-08-02 | 2023-03-28 | 古河電気工業株式会社 | Charging device and charging method |
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