JPS6349459B2 - - Google Patents
Info
- Publication number
- JPS6349459B2 JPS6349459B2 JP55072062A JP7206280A JPS6349459B2 JP S6349459 B2 JPS6349459 B2 JP S6349459B2 JP 55072062 A JP55072062 A JP 55072062A JP 7206280 A JP7206280 A JP 7206280A JP S6349459 B2 JPS6349459 B2 JP S6349459B2
- Authority
- JP
- Japan
- Prior art keywords
- charging
- circuit
- voltage
- battery
- sensing
- 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
Links
- 230000002159 abnormal effect Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 244000145845 chattering Species 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は個々の電池を個別に充電する複数の充
電枝路と、充電中の電池の所定充電状態を検出し
て充電枝路の給電を順次切換える制御回路とを備
えた電池の充電装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention includes a plurality of charging branches that individually charge each battery, and a control circuit that detects a predetermined state of charge of the battery being charged and sequentially switches the power supply of the charging branches. The present invention relates to a battery charging device.
この種装置において、充電中の電池が内部短絡
した短絡電池であるとき、または給電中の充電枝
路に電池が正しく装着されていないとき等の場合
には、かかる異常状態を感知して、この充電枝路
の給電を停止し、次の充電枝路を給電するように
するのが望ましい。 In this type of device, when the battery being charged is a short-circuited battery with an internal short circuit, or when the battery is not properly installed in the charging branch that is being supplied with power, it is possible to detect such an abnormal condition and Preferably, the charging branch is de-energized and the next charging branch is supplied with power.
ところが、かかる異常状態を感知する感知回路
を設ける場合に、充電枝路の給電を切換える間、
いずれの充電枝路にも給電されないこととなり、
共通充電ラインには、電源からのリツプルあるい
はノイズが表われ、このリツプル又はノイズによ
つて感知回路が誤動作する虞れがある。 However, when a sensing circuit is provided to detect such abnormal conditions, while switching the power supply of the charging branch,
No power will be supplied to either charging branch,
The common charging line exhibits ripple or noise from the power supply that can cause the sensing circuit to malfunction.
本発明は、かかる点に鑑み発明されたものにし
て、以下本発明の一具体例を図面に基いて説明す
る。第１図は本発明による装置の概略図である。
この図面において、１は充電電源にして、商用電
源電圧を整流平滑し、その平滑電圧をインバータ
によつて降圧し、その降圧整流出力を電池に供給
するものである。この充電電源１には個々の電池
２1〜２ｎを個別に充電する複数の充電枝路３1〜
３ｎが並列接続される。各充電枝路は夫々電池の
接続端子４，４′とスイツチ回路５1〜５ｎを備え
ており、各スイツチ回路は後述する自動切換回路
１１の出力により１つのスイツチ回路のみが順次
閉成する如く開閉制御される。 The present invention has been invented in view of these points, and one specific example of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram of a device according to the invention.
In this figure, reference numeral 1 designates a charging power source that rectifies and smoothes a commercial power supply voltage, steps down the smoothed voltage using an inverter, and supplies the step-down rectified output to the battery. This charging power source 1 includes a plurality of charging branches 3 1 to 3 for individually charging individual batteries 2 1 to 2n.
3n are connected in parallel. Each charging branch is provided with battery connection terminals 4, 4' and switch circuits 51 to 5n, each of which is configured such that only one switch circuit is sequentially closed by the output of an automatic switching circuit 11, which will be described later. Opening/closing controlled.
６は充電中の電池の所定の充電状態を検出し
て、充電枝路の給電を順次切換える制御回路にし
て、次のように構成される。即ち、充電中の電池
の電池電圧又はその比例電圧を検出する検出回路
７と、前記電池電圧又はその比例電圧の最大電圧
より所定電圧低い電圧を記憶する記憶回路８と、
前記最大電圧を呈した後の低下する電圧回路７の
出力と記憶回路８の記憶電圧との所定の差電圧を
検出する比較回路９と、該比較回路の出力によつ
て単一パルスを発生するパルス発生回路１０と、
前記単一パルスによつて出力Q1〜Qnが切換えら
れ、各充電枝路のスイツチ回路５1〜５ｎをその
１つのみが順次閉成する如く切換える自動切換回
路１１と、前記単一パルスによつて記憶回路８の
記憶電圧を初期状態に復帰する復帰回路１２と、
給電中の充電枝路の異常電圧を感知してパルス発
生回路１０から単一パルスを発生せしめる感知回
路１３と、給電すべき充電枝路の切換信号として
の前記単一パルスにより感知回路１３をリセツト
するリセツト回路１４とからなる。感知回路１３
は充電中の電池が内部短絡した短絡電池であるこ
とを感知する第１感知回路１５と、給電中の充電
枝路に電池が正しく装着されていないことを感知
する第２感知回路１６とよりなる。第１感知回路
１５は共通充電ライン１７の電圧が第１比較電圧
V1より小さいことを検出して出力を生ずる第１
演算増幅器O1からなり、第２感知回路１６は共
通充電ライン１７の電圧が第２比較電圧V2より
大きいとき出力を生ずる第２演算増巾器O2から
なる。リセツト回路１４は第１及び第２感知回路
１５，１６を夫々リセツトする第１及び第２リセ
ツト手段１８，１９からなる。第１リセツト手段
１８はパルス発生回路１０からの単一パルスによ
り、該パルスの発生期間、第１演算増巾器O1の
入力を持ち上げ、該増巾器の出力をリセツト状態
に保持するトランジスタQ1及び抵抗R1，R2と、
前記単一パルス消滅により第１感知回路１５が作
動するのを遅延せしめる遅延手段２０とからな
り、該遅延手段は抵抗R3及びコンデンサC1で構
成される。第２リセツト手段１９はパルス発生回
路１０からの単一パルスにより、該パルスの発生
期間第２演算増巾器O2の入力を落とし、該増巾
器の出力をリセツト状態に保持するトランジスタ
Q2と、前記単一パルスの消滅後の第２感知回路
１６の作動を遅延せしめる遅延手段２１からな
る。該遅延手段は抵抗R4及びコンデンサC2で構
成される。 Reference numeral 6 denotes a control circuit that detects a predetermined state of charge of the battery being charged and sequentially switches the power supply of the charging branch, and is configured as follows. That is, a detection circuit 7 that detects the battery voltage of the battery being charged or its proportional voltage, and a memory circuit 8 that stores a voltage that is a predetermined voltage lower than the maximum voltage of the battery voltage or its proportional voltage.
a comparator circuit 9 for detecting a predetermined difference voltage between the output of the voltage circuit 7 and the storage voltage of the storage circuit 8, which decreases after exhibiting the maximum voltage; and a single pulse is generated by the output of the comparison circuit. a pulse generation circuit 10;
an automatic switching circuit 11 in which the outputs Q 1 to Qn are switched by the single pulse and switches the switch circuits 5 1 to 5n of each charging branch in such a way that only one of them is sequentially closed; A recovery circuit 12 that therefore returns the storage voltage of the storage circuit 8 to its initial state;
A sensing circuit 13 that senses an abnormal voltage in the charging branch that is being supplied with power and causes the pulse generating circuit 10 to generate a single pulse; and the sensing circuit 13 is reset by the single pulse as a switching signal for the charging branch that is to be supplied with power. It consists of a reset circuit 14. Sensing circuit 13
consists of a first sensing circuit 15 that senses that the battery being charged is a short-circuited battery that has an internal short circuit, and a second sensing circuit 16 that senses that the battery is not correctly installed in the charging branch that is being supplied with power. . The first sensing circuit 15 detects that the voltage of the common charging line 17 is a first comparison voltage.
The first one detects that V is less than 1 and produces an output.
Consisting of an operational amplifier O 1 , the second sensing circuit 16 consists of a second operational amplifier O 2 which produces an output when the voltage on the common charging line 17 is greater than the second comparison voltage V 2 . The reset circuit 14 comprises first and second reset means 18, 19 for resetting the first and second sensing circuits 15, 16, respectively. The first reset means 18 uses a single pulse from the pulse generating circuit 10 to raise the input of the first operational amplifier O1 during the period of generation of the pulse, and the transistor Q to maintain the output of the amplifier in the reset state. 1 and resistors R 1 and R 2 ,
and delay means 20 for delaying activation of the first sensing circuit 15 due to the extinction of the single pulse, said delay means comprising a resistor R 3 and a capacitor C 1 . The second reset means 19 uses a single pulse from the pulse generating circuit 10 to reduce the input of the second operational amplifier O2 during the generation period of the pulse, and resets the transistor to maintain the output of the amplifier in the reset state.
Q 2 and a delay means 21 for delaying the activation of the second sensing circuit 16 after the disappearance of said single pulse. The delay means consists of a resistor R 4 and a capacitor C 2 .
次に電池の充電電圧特性は、第２図中Ａで示さ
れ、ピーク点ａを有し、その後低下する。この低
下領域において充電量特性Ｂは満充電になる。検
出回路７が電池電圧の比例電圧を検出する場合、
その比例電圧は特性Ｃとなる。また記憶回路８は
比例電圧の最大電圧Vpより所定電圧Ｖ低い電圧
を記憶するから、その電圧特性はＤとなる。ピー
ク時点t1後の記憶電圧はピーク時点t1の電圧Vcと
なる。 Next, the charging voltage characteristic of the battery is indicated by A in FIG. 2, has a peak point a, and then decreases. In this decreasing region, the charge amount characteristic B becomes fully charged. When the detection circuit 7 detects the proportional voltage of the battery voltage,
The proportional voltage has characteristic C. Further, since the memory circuit 8 stores a voltage lower by a predetermined voltage V than the maximum voltage Vp of the proportional voltage, its voltage characteristic becomes D. The storage voltage after the peak time t1 becomes the voltage Vc at the peak time t1 .
検出電圧特性Ｃから明らかなように、ピーク時
点t1後、検出回路７の出力が低下し、この低下す
る検出回路出力と記憶電圧Vcとの所定の差電圧、
たとえば零電圧になる時点t2で比較回路９の出力
が生じる。この出力に基ずき、パルス発生回路１
０から単一パルスが出力され、該単一パルスによ
り自動切換回路１１の出力が変つて、たとえば今
まで給電されていた充電枝路３1のスイツチ回路
５1が開成する。また前記単一パルスの消滅時か
ら次の充電枝路３2のスイツチ回路５2が閉成す
る。このため充電枝路３1の電池２1の充電が終了
し、次の充電枝路３2の電池２2が充電され始め
る。前記単一パルスにより、充電枝路の切換と同
時に記憶回路８の記憶電圧が復帰回路１２にて、
初期状態に復帰する。 As is clear from the detection voltage characteristic C, after the peak time t1 , the output of the detection circuit 7 decreases, and a predetermined difference voltage between this decreasing detection circuit output and the storage voltage Vc,
For example, the output of the comparator circuit 9 occurs at time t2 when the voltage becomes zero. Based on this output, pulse generation circuit 1
A single pulse is output from 0, which changes the output of the automatic switching circuit 11, for example opening the switch circuit 5 1 of the hitherto supplied charging branch 3 1 . Also, from the moment the single pulse disappears, the switch circuit 5 2 of the next charging branch 3 2 is closed. Therefore, charging of the battery 2 1 of the charging branch 3 1 is completed, and charging of the battery 2 2 of the next charging branch 3 2 begins. Due to the single pulse, the storage voltage of the storage circuit 8 is changed in the recovery circuit 12 at the same time as the charging branch is switched.
Return to initial state.
このようにして全ての電池２1〜２ｎが順次個
別に充電される。 In this way, all the batteries 2 1 to 2n are sequentially and individually charged.
而してたとえば第２の電池２2が内部短絡した
電池であると、この第２の電池の充電時の共通充
電ライン１７の電圧が第１比較電圧V1より低く、
この状態を第１感知回路１５が感知して第１演算
増巾器O1から出力が生ずる。この出力によりパ
ルス発生回路１０から単一パルスが生じ、前述と
同様に給電する充電枝路を３2から３3に切換え
る。 For example, if the second battery 22 is an internally shorted battery, the voltage of the common charging line 17 when charging this second battery is lower than the first comparison voltage V1 ,
This state is sensed by the first sensing circuit 15 and an output is generated from the first operational amplifier O1 . This output produces a single pulse from the pulse generating circuit 10, which switches the charging branch from 3 2 to 3 3 as before.
また、第２の電池２2が接続端子４，４′に正し
く装着されていないときには、第２電池２2の充
電時に共通充電ライン１７の電圧が第２比較電圧
V2より大きく、この状態を第２感知回路１６が
感知して第２演算増巾器O2から出力が生ずる。
この出力に基ずきパルス発生回路１０から単一パ
ルスが生じ、前述の如く、給電する充電枝路を３
２から３3に切換える。 In addition, when the second battery 2 2 is not properly attached to the connection terminals 4 and 4', the voltage of the common charging line 17 changes to the second comparison voltage when the second battery 2 2 is charged.
V 2 , this condition is sensed by the second sensing circuit 16 and produces an output from the second operational amplifier O 2 .
Based on this output, a single pulse is generated from the pulse generating circuit 10, and as described above, the three charging branches to be supplied with power are
Switch from 2 to 3 3 .
次に充電枝路の切換時の感知回路１３の入力波
形を第３図及び第４図に基いて説明する。第３図
はリセツト回路１４を備えない場合、第４図はリ
セツト回路１４を設けた場合の波形図である。ま
ず、リセツト回路１４のない場合、第３図におい
て時点t3で第１の電池２1の充電が終了して、パ
ルス発生回路１０から単一パルスＰが生じ、該パ
ルスの発生期間（Ｔ）後の時点t4から第２の電池
２2の充電が開始する。この場合に第１及び第２
電池２1，２2が正常なものであり、正しく接続端
子４，４′に装着されていると、各電池の充電期
間では、第１感知回路１５の入力は第１比較電圧
V1より大きく、また第２感知回路１６の入力は
第２比較電圧V2より小さく、両感知回路１５，
１６から出力がでない。ところが、電圧の充電切
換期間即ち単一パルスＰの発生期間（Ｔ）におい
ては、両感知回路１５，１６の入力信号は共通充
電ライン１７の電圧となる。この期間の共通充電
ライン１７には、充電電源１の回路電圧波形が表
われ、充電電源１の降圧手段として低周波トラン
スを用いるときには、商用周波数の整流脈動波形
が表われ、又降圧手段として具体例で説明したよ
うにコンバータを用いるときには、スイツチング
波形（発振波形）が表われる。第３図においては
発振波形Ｗを示す。この発振波形Ｗは第１比較電
圧V1より低いときがあり、又第２比較電圧V2よ
り大きいときがある。このため単一パルスＰの発
生期間（Ｔ）内に第１及び第２感知回路１５，１
６の出力が次々と生じ、単一パルスＰが次々と発
生することになり、充電枝路３1〜３ｎの給電を
順次切換えることができなくなる。 Next, the input waveform of the sensing circuit 13 when switching the charging branch will be explained based on FIGS. 3 and 4. FIG. 3 is a waveform diagram when the reset circuit 14 is not provided, and FIG. 4 is a waveform diagram when the reset circuit 14 is provided. First, in the case where the reset circuit 14 is not provided, charging of the first battery 21 ends at time t3 in FIG. Charging of the second battery 2 2 begins at a later time t 4 . In this case the first and second
If the batteries 2 1 and 2 2 are normal and correctly attached to the connection terminals 4 and 4', the input of the first sensing circuit 15 will be at the first comparison voltage during the charging period of each battery.
V 1 and the input of the second sensing circuit 16 is smaller than the second comparison voltage V 2 , both sensing circuits 15,
There is no output from 16. However, during the voltage charging switching period, that is, during the single pulse P generation period (T), the input signals of both sensing circuits 15 and 16 become the voltage of the common charging line 17. During this period, the circuit voltage waveform of the charging power source 1 appears on the common charging line 17, and when a low-frequency transformer is used as the step-down means of the charging power source 1, a rectified pulsating waveform of the commercial frequency appears, and the voltage waveform of the commercial frequency rectifier appears as a step-down means. As explained in the example, when a converter is used, a switching waveform (oscillation waveform) appears. In FIG. 3, an oscillation waveform W is shown. This oscillation waveform W is sometimes lower than the first comparison voltage V 1 and sometimes larger than the second comparison voltage V 2 . Therefore, within the generation period (T) of the single pulse P, the first and second sensing circuits 15, 1
6 outputs occur one after the other, single pulses P occur one after the other, and it is no longer possible to switch the power supply of the charging branches 3 1 to 3n one after the other.
かかる欠点を解消するためにリセツト回路１４
を設けている。この場合に第４図に示すように、
単一パルスＰが発生している期間（Ｔ）中、該単
一パルスによつてトランジスタQ1を導通して第
１演算増巾器O1の入力を電池電圧V3より持ち上
げて、リセツト状態に保持すると共に遅延手段２
０にて発振波形Ｗを一部吸収平滑する。また単一
パルスＰによつてトランジスタQ2を導通して第
２演算増巾器O2の入力を第２比較電圧V2より低
いものに落とし、発振波形Ｗの一部を吸収平滑す
る。 In order to eliminate this drawback, the reset circuit 14 is
has been established. In this case, as shown in Figure 4,
During the period (T) during which a single pulse P is generated, the single pulse conducts the transistor Q1 to raise the input of the first operational amplifier O1 above the battery voltage V3 , thereby establishing a reset state. and delay means 2
0, the oscillation waveform W is partially absorbed and smoothed. Furthermore, the single pulse P turns on the transistor Q 2 to reduce the input of the second operational amplifier O 2 to a voltage lower than the second comparison voltage V 2 to absorb and smooth a part of the oscillation waveform W.
このようにリセツト回路１４の存在により、単
一パルスＰの発生期間（Ｔ）における充電電源１
からの商用周波数の整流脈動波形又はスイツチン
グ波形の影響を除くことができる。 As described above, due to the presence of the reset circuit 14, the charging power source 1 during the generation period (T) of the single pulse P
It is possible to eliminate the influence of the rectified pulsating waveform or switching waveform of the commercial frequency.
遅延手段２０，２１は前記整流脈動波形又はス
イツチング波形の一部を吸収平滑するだけではな
く、次の機能を有する。即ち充電する電池が過放
電電池である場合には、該過放電電池の充電開始
後の電圧立上りが遅く、充電初期に内部短絡電池
と同様に第１比較電圧V1より低い状態にあり、
第１感知回路１５がただちにかかる状態を感知し
ないように、遅延手段２０が設けられている。ま
た、充電枝路３1〜３ｎに介挿される各スイツチ
回路５1〜５ｎをリレースイツチで構成する場合
には、該リレースイツチの接片がチヤタリング現
象を起す。このためチヤタリングによつてリレー
スイツチが瞬時的に開成し、この開成時に共通充
電ライン１７の電圧が第２比較電圧V2より大き
くなる。第２感知回路１６がこの瞬時的状態を感
知しないように遅延手段２１が設けられている。 The delay means 20 and 21 not only absorb and smooth a part of the rectified pulsating waveform or switching waveform, but also have the following functions. That is, when the battery to be charged is an over-discharged battery, the voltage rise after the start of charging of the over-discharged battery is slow, and the voltage is lower than the first comparison voltage V 1 at the beginning of charging, similar to an internally shorted battery.
Delay means 20 are provided to prevent the first sensing circuit 15 from sensing such a condition immediately. Furthermore, when each of the switch circuits 5 1 to 5n inserted in the charging branches 3 1 to 3n is constituted by a relay switch, the contacts of the relay switch cause a chattering phenomenon. Therefore, the relay switch is instantaneously opened due to the chatter, and when the relay switch is opened, the voltage of the common charging line 17 becomes higher than the second comparison voltage V2 . Delay means 21 are provided to prevent the second sensing circuit 16 from sensing this instantaneous condition.
以上の如く、本発明は充電電源にて個々の電池
を個別に充電する複数の充電枝路と、充電中の電
池の所定充電状態を検出して一定時間幅の切換信
号により前記充電枝路の給電を順次切換える制御
回路とを備え、該制御回路は、前記複数の充電枝
路の共通充電ラインに接続されて給電中の充電枝
路の電圧が前記電池の正常である場合に有する電
圧範囲を逸脱する異常電圧を感知する感知回路
と、前記切換信号により少なくとも該切換信号の
一定時間の間前記感知回路の出力を異常電圧の感
知前の定常出力に戻すリセツト回路とを有し、前
記充電枝路の切換えを前記切換信号の一定時間を
おいて行うと共に該切換時における前記感知回路
の異常電圧の感知を阻止することを特徴とするも
のであるから、給電中の充電枝路が異常電圧を呈
するときには、この充電枝路の給電を速やかに停
止して、次の充電枝路に給電することができ、全
体の充電時間を短くすることができ、特に、充電
枝路の切換時における充電電源からの商用周波数
の整流脈流信号又はスイツチング信号（発振信
号）の影響により、感知回路が誤動作するのを防
止することができる。 As described above, the present invention includes a plurality of charging branches for individually charging each battery using a charging power source, and detecting a predetermined state of charge of the battery being charged and switching the charging branches using a switching signal of a fixed time width. and a control circuit that sequentially switches the power supply, the control circuit having a voltage range that the voltage of the charging branch that is connected to the common charging line of the plurality of charging branches and is currently supplying power has when the battery is normal. a sensing circuit that senses a deviating abnormal voltage; and a reset circuit that returns the output of the sensing circuit to the steady output before sensing the abnormal voltage for at least a predetermined period of time according to the switching signal, and the charging branch The present invention is characterized in that the circuit is switched after a certain period of time for the switching signal and the sensing circuit is prevented from sensing an abnormal voltage at the time of the switching, so that the charging branch during power supply is prevented from detecting an abnormal voltage. When the charging branch is switched, the power supply of this charging branch can be quickly stopped and the power can be supplied to the next charging branch, which can shorten the overall charging time, especially when switching the charging branch. It is possible to prevent the sensing circuit from malfunctioning due to the influence of the commercial frequency rectified pulsating current signal or switching signal (oscillation signal) from the sensor.
第１図は本発明による装置の一具体例を示す概
略図、第２図は電池の充電特性図、第３図及び第
４図はリセツト回路の有無による感知回路の入力
波形図である。
２1〜２ｎ……電池、３1〜３ｎ……充電枝路、
７……検出回路、８……記憶回路、９……比較回
路、１３……感知回路、１１……自動切換回路、
１４……リセツト回路、２０，２１……遅延手
段。
FIG. 1 is a schematic diagram showing a specific example of the device according to the present invention, FIG. 2 is a charging characteristic diagram of a battery, and FIGS. 3 and 4 are input waveform diagrams of a sensing circuit with and without a reset circuit. 2 1 to 2n... battery, 3 1 to 3n... charging branch,
7...detection circuit, 8...memory circuit, 9...comparison circuit, 13...sensing circuit, 11...automatic switching circuit,
14...Reset circuit, 20, 21...Delay means.
Claims (1)
数の充電枝路と、充電中の電池の所定充電状態を
検出して一定時間幅の切換信号により前記充電枝
路の給電を順次切換える制御回路とを備え、 該制御回路は、 前記複数の充電枝路の共通充電ラインに接続さ
れて給電中の充電枝路の電圧が前記電池の正常で
ある場合に有する電圧範囲を逸脱する異常電圧を
感知する感知回路と、 前記切換信号により少なくとも該切換信号の一
定時間の間前記感知回路の出力を異常電圧の感知
前の定常出力に戻すリセツト回路とを有し、 前記充電枝路の切換えを前記切換信号の一定時
間をおいて行うと共に該切換時における前記感知
回路の異常電圧の感知を阻止することを特徴とす
る電池の充電回路。 ２ 前記リセツト回路は遅延手段を備えてなる特
許請求の範囲第１項記載の電池の充電装置。[Scope of Claims] 1. A plurality of charging branches that individually charge each battery using a charging power source, and a plurality of charging branches that detect a predetermined state of charge of the battery being charged and switch the charging branches using a switching signal of a fixed time width. and a control circuit that sequentially switches the power supply, the control circuit having a voltage range that exists when the voltage of the charging branch connected to the common charging line of the plurality of charging branches and being supplied with power is normal for the battery. a sensing circuit that senses abnormal voltage that deviates; and a reset circuit that returns the output of the sensing circuit to the steady output before sensing the abnormal voltage for at least a certain period of time according to the switching signal, and the charging branch 1. A battery charging circuit characterized in that the circuit is switched at a predetermined time interval of the switching signal, and the sensing circuit is prevented from sensing an abnormal voltage at the time of the switching. 2. The battery charging device according to claim 1, wherein the reset circuit includes delay means.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7206280A JPS5733A (en) | 1980-05-28 | 1980-05-28 | Charger for battery |
| DE3039119A DE3039119C2 (en) | 1980-01-29 | 1980-10-16 | Charger for rechargeable batteries |
| DE3050778A DE3050778C2 (en) | 1980-01-29 | 1980-10-16 | |
| FR8022334A FR2474776A1 (en) | 1980-01-29 | 1980-10-17 | Battery charger with automatic cut=out at full charge - monitors charging voltage to control supplied charging current using reference obtained from battery terminals |
| US06/228,684 US4387332A (en) | 1980-01-29 | 1981-01-26 | Apparatus for successively charging rechargeable batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7206280A JPS5733A (en) | 1980-05-28 | 1980-05-28 | Charger for battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5733A JPS5733A (en) | 1982-01-05 |
| JPS6349459B2 true JPS6349459B2 (en) | 1988-10-04 |
Family
ID=13478524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7206280A Granted JPS5733A (en) | 1980-01-29 | 1980-05-28 | Charger for battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5733A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4935646A (en) * | 1989-02-22 | 1990-06-19 | International Business Machines Corporation | Fully static CMOS cascode voltage switch logic systems |
| US6663602B2 (en) | 2000-06-16 | 2003-12-16 | Novo Nordisk A/S | Injection device |
| WO2006045526A1 (en) | 2004-10-21 | 2006-05-04 | Novo Nordisk A/S | Dial-down mechanism for wind-up pen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53149638A (en) * | 1977-06-01 | 1978-12-27 | Sanyo Electric Co | Charging device for storage battery |
| JPS5460430A (en) * | 1977-10-24 | 1979-05-15 | Sony Corp | Charging equipment |
| JPS54162140A (en) * | 1978-06-12 | 1979-12-22 | Matsushita Electric Ind Co Ltd | Charger |
-
1980
- 1980-05-28 JP JP7206280A patent/JPS5733A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53149638A (en) * | 1977-06-01 | 1978-12-27 | Sanyo Electric Co | Charging device for storage battery |
| JPS5460430A (en) * | 1977-10-24 | 1979-05-15 | Sony Corp | Charging equipment |
| JPS54162140A (en) * | 1978-06-12 | 1979-12-22 | Matsushita Electric Ind Co Ltd | Charger |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5733A (en) | 1982-01-05 |
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