JPS6277026A - Charge/discharge controller for storage battery - Google Patents
Charge/discharge controller for storage batteryInfo
- Publication number
- JPS6277026A JPS6277026A JP60213032A JP21303285A JPS6277026A JP S6277026 A JPS6277026 A JP S6277026A JP 60213032 A JP60213032 A JP 60213032A JP 21303285 A JP21303285 A JP 21303285A JP S6277026 A JPS6277026 A JP S6277026A
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- charging
- current
- discharging
- terminal 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、蓄電池の過充放電を防止する蓄電池の充放電
制御方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a storage battery charging/discharging control system that prevents overcharging and discharging of a storage battery.
蓄電池の充放電制御装置において、蓄電池の過充放電を
防止する場合、蓄電池の充電状態を検出して蓄電池が過
充放電か否かを判断し、過充電或いは過放電になったら
充電或いは放電を停止するようになっている。この場合
充放電状態を検出する方法として、従来、蓄電池の端子
電圧値のみにより検出する方法、蓄電池の端子電圧と比
重とによって検出する方法、蓄電池の端子電圧と充放電
の収支により検出する方法がある。When preventing overcharging and discharging of a storage battery, a storage battery charge/discharge control device detects the state of charge of the storage battery to determine whether the storage battery is overcharged or discharged, and then stops charging or discharging when overcharged or overdischarged. It is supposed to stop. In this case, conventional methods for detecting the charge/discharge state include a method of detecting only the terminal voltage value of the storage battery, a method of detecting the terminal voltage of the storage battery and specific gravity, and a method of detecting the state of charging and discharging based on the terminal voltage of the storage battery and the balance of charging and discharging. be.
しかしながら上記従来の蓄電池の充放電状態検出方法に
は以下のような問題点があった。However, the conventional method for detecting the charging/discharging state of a storage battery has the following problems.
蓄電池端子電圧のみにより検出する方法では、後に詳述
するように、蓄電池の充放電電流の値によって蓄電池電
圧が変化するため正確な充放１Ｆを検出することができ
ないという欠点がある。The method of detecting only the storage battery terminal voltage has the disadvantage that, as will be described in detail later, the storage battery voltage changes depending on the value of the charging/discharging current of the storage battery, so that accurate charging/discharging 1F cannot be detected.
蓄電池の端子７Ｆ圧と比重によって検出する方法では、
比重を検出するために蓄電池自体に改良を施さなければ
ならず、その費用が極めて高価であるため制御装置も高
価なものとなるという欠点がある。In the method of detection based on the terminal 7F pressure and specific gravity of the storage battery,
In order to detect the specific gravity, the storage battery itself must be improved, which is extremely expensive, so the control device is also expensive.
蓄電池の端子電圧と充放電の収支による方法では、充放
電の収支を積算しているため該積算値をある時点で修正
しなければならず、その判断が非常に困難であり、常に
正確に蓄電池の状態を判断できないという欠点がある。In the method based on the terminal voltage of the storage battery and the balance of charging and discharging, since the balance of charging and discharging is accumulated, the accumulated value must be corrected at a certain point, and it is very difficult to judge this, so The disadvantage is that it is not possible to determine the state of
従って上記検出方法を利用した従来の蓄電池の充放電制
御装置では、正確な過充放電の制御ができないか、或い
はできても価格が極めて高価なものとなるという欠点が
あった。Therefore, conventional storage battery charge/discharge control devices using the above-mentioned detection method have the disadvantage that they cannot accurately control overcharging and discharging, or even if they can, they are extremely expensive.
本発明は上述の点に濫みてなされたもので、上記従来の
欠点を除去し、正確な過充放電制御が可能で、且つ安価
な蓄電池の充放電制御方式を提供することにある。The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide an inexpensive charging/discharging control method for storage batteries that eliminates the above-mentioned conventional drawbacks, enables accurate overcharging/discharging control, and is inexpensive.
上記問題点を解決するため本発明は、直流電源、蓄電池
とを具備する直流電源装置において、該蓄電池の端子電
圧を検出する電圧検出手段と、該蓄電池からの放電電流
を検出する放電電流検出手段と、該蓄電池への充電電流
を検出する充電電流検出手段とを設けると共に、前記各
検出手段からの出力により前記蓄電池の充電状態を検出
し、該蓄電池が過充電或いは過放電となった時、前記蓄
電池の充電或いは放電を停止する制御手段を設けて蓄電
池の充放電制御装置を構成した。In order to solve the above problems, the present invention provides a DC power supply device comprising a DC power supply and a storage battery, including voltage detection means for detecting the terminal voltage of the storage battery, and discharge current detection means for detecting the discharge current from the storage battery. and a charging current detection means for detecting the charging current to the storage battery, and detects the state of charge of the storage battery based on the output from each of the detection means, and when the storage battery becomes overcharged or overdischarged, A control device for stopping charging or discharging of the storage battery is provided to constitute a storage battery charge/discharge control device.
上記の如く構成することにより本発明は、電圧検出手段
、放電電流検出手段、充電電流検出手段の各検出手段か
らの出力により蓄電池の正確な充電状態を検出し、該充
電状態により蓄電池の充電或いは放電を防止するので、
より正確に過充放電を制御することが可能となる。By configuring as described above, the present invention detects the accurate state of charge of the storage battery based on the outputs from each of the voltage detection means, the discharge current detection means, and the charging current detection means, and controls the charging or charging of the storage battery based on the state of charge. To prevent discharge,
It becomes possible to control overcharging and discharging more accurately.
以下、本発明の一実施例を図面に基づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図は、本発明に係る蓄電池の充放電制御装置の構成
を示すブロック図である。同図において、１は太陽電池
、２は蓄電池、３は前記太陽電池１から供給きれる電流
を検出する電流センサ、４は前記蓄電池２及び太陽電池
１から負荷６に供給きれる主流を検出する電流センサ、
５は前記蓄電池２の端子電圧を検出する電圧センサ、７
は前記太陽電池１からの電流を遮断するスイッチ、８は
前記太陽電池１及び蓄電池２から負荷６に供給される負
荷電流を遮断するスイッチ、９は前記蓄電池２の充放電
を制御する制御回路、１０は前記スイッチ７及び８のＯ
Ｎ・ＯＦＦ操作をする操作回路である。FIG. 1 is a block diagram showing the configuration of a storage battery charge/discharge control device according to the present invention. In the figure, 1 is a solar battery, 2 is a storage battery, 3 is a current sensor that detects the current that can be supplied from the solar battery 1, and 4 is a current sensor that detects the main current that can be supplied from the storage battery 2 and the solar battery 1 to the load 6. ,
5 is a voltage sensor that detects the terminal voltage of the storage battery 2; 7
8 is a switch that cuts off the current from the solar cell 1; 8 is a switch that cuts off the load current supplied from the solar cell 1 and the storage battery 2 to the load 6; 9 is a control circuit that controls charging and discharging of the storage battery 2; 10 is O of the switches 7 and 8
This is an operation circuit for N/OFF operation.
制御回￥８９は、第２図に示すように入出力制御回路９
−１、中央処理装置９−２、記憶装置９−３等から構成
される。入出力制御回路９−１は、Ｎｍセンサ３，４、
／ｉｆｉ圧センサ５から出力を中央処理装置９−２に入
力し、中央処理装置９−２からの出力を操作回路１０に
入力する。中央処理装置９−２は、を流センサ３，４、
′電圧センサ５からの出力から蓄電池２が充電状態か或
いは放電状態かを検出すると共に、該蓄電池２がｊｂ充
電状態か或いは過放電状態かを判断する。記憶装置９−
３には、各種の処理プログラムや後述する様に過充電時
或いは過放電時の端子電圧値及び充電電流値或いは放７
Ｅ電流値をテーブル化して記憶させている。The control circuit ¥89 is the input/output control circuit 9 as shown in Figure 2.
-1, a central processing unit 9-2, a storage device 9-3, etc. The input/output control circuit 9-1 includes Nm sensors 3, 4,
/ifi The output from the pressure sensor 5 is input to the central processing unit 9-2, and the output from the central processing unit 9-2 is input to the operation circuit 10. The central processing unit 9-2 includes flow sensors 3, 4,
'It is detected from the output from the voltage sensor 5 whether the storage battery 2 is in a charged state or a discharged state, and it is also determined whether the storage battery 2 is in a jb charged state or an over-discharged state. Storage device 9-
3 includes various processing programs and terminal voltage values and charging current values during overcharging or overdischarging, as will be described later.
The E current values are stored in a table.
ところで、蓄電池の充電電流と端子電圧の関係及び放電
電流と端子電圧の関係は、蓄電池の充電状態（完全放電
状態からの充電量）により変化するといわれている。第
３図は充電電流値Ｉａと端子電圧値Ｖの関係の一例を示
す図であり、図示するように充電電流値Ｉａと端子電圧
値Ｖは、蓄電池の充電状態Ａ＝Ｏ％〜１２０％により変
化する。また、第４図は蓄電池の放電電流値Ｉｂと端子
電圧値Ｖの関係の一例を示す図であり、図示するように
放電電流値Ｉｂと端子電圧値Ｖとは放電状態Ａ＝０％〜
１００％により変化する。従って蓄電池の端子電圧Ｖと
充放電電流値Ｉａ、Ｉｂを検出すればその時の充電状態
、即ち過充電か或いは過放電かを検知できる。例えば、
第５図（ａ）に示すように過充電となる時の端子電圧値
Ｖに対する充電電流値Ｉａ及び同図（ｂ）に示すように
過放電となる時の端子電圧Ｖに対する放電電流値Ｉｂを
テーブル化して、制御回路９の記憶装置９−３に記憶し
ておき、電流センサ３及び電流センサ４の出力から後述
する様に中央処理装置９−２で蓄電池の充放電電流及び
端子電圧を検出し、該充電電流、放電電流及び電圧セン
サ５からの端子電圧より、前記記憶装置９−３に記憶さ
れているテーブルを参照して、蓄電池２が過充電か或い
は過放電かを検出する。もし過充電であったら操作回路
１０を駆動し、スイッチ７を０ＦＦＬ太陽電池１からの
充電を停止許せ、過放電であったら操作回路１０を駆動
し、スイッチ８を０ＦＦＩ、蓄電池２からの放電を停止
する。By the way, it is said that the relationship between the charging current and the terminal voltage of the storage battery and the relationship between the discharging current and the terminal voltage change depending on the charging state of the storage battery (the amount of charge from the fully discharged state). FIG. 3 is a diagram showing an example of the relationship between the charging current value Ia and the terminal voltage value V. As shown in the figure, the charging current value Ia and the terminal voltage value V vary depending on the charging state of the storage battery A=0% to 120%. Change. Moreover, FIG. 4 is a diagram showing an example of the relationship between the discharge current value Ib and the terminal voltage value V of the storage battery, and as shown in the figure, the discharge current value Ib and the terminal voltage value V vary from discharge state A=0% to
It varies by 100%. Therefore, by detecting the terminal voltage V and the charging/discharging current values Ia and Ib of the storage battery, it is possible to detect the charging state at that time, that is, whether the battery is overcharged or overdischarged. for example,
As shown in FIG. 5(a), the charging current value Ia for the terminal voltage value V when overcharging occurs, and as shown in FIG. 5(b), the discharging current value Ib for the terminal voltage V when overdischarging occurs. A table is created and stored in the storage device 9-3 of the control circuit 9, and the charging/discharging current and terminal voltage of the storage battery are detected by the central processing unit 9-2 from the outputs of the current sensor 3 and the current sensor 4 as described later. Then, based on the charging current, the discharging current, and the terminal voltage from the voltage sensor 5, it is detected whether the storage battery 2 is overcharged or overdischarged by referring to a table stored in the storage device 9-3. If it is overcharged, drive the operating circuit 10 and set the switch 7 to 0FFL to stop charging from the solar cell 1. If it is overdischarged, drive the operating circuit 10 and set the switch 8 to 0FFI to stop the charging from the storage battery 2. Stop.
第６図は中央処理装置９−２の過充電及び過放電処理の
流れを示すフローチャートである。先ず電流センサ３の
出力値■、及び電流センサ４の出力値Ｉ、の両者の差１
．−Ｉｎから充電電流Ｉａ及び放電電流を求める（ステ
ップ１０１）。即ち１ｌ−Ｉ２が正であれば充電で、そ
の値が充電電流値を示し、１１ Ｌが負であれば放電で
、その値が放電電流値を示す。次に前記ステップ１０１
の結果が充電か放電かを判断しくステップ１０２）、充
電であったら、電圧センサ５の出力即ち蓄電池２の端子
電圧値Ｖを読み込む（ステップ１０３）。次に記憶装置
９−３に記憶しているテーブルを参照し、蓄電池２が過
充電にあるか否かを判断しくステップ１０４）、もし過
充電であったら操作回路１０を駆動しスイッチ７をＯＦ
Ｆ［、、、太陽電池からの給電を停止する（ステップ１
０５）。前記ステップ１０４において、過充電でなかっ
たら所定時間計時し、該所定時間経過したら（ステップ
１０６，１０７）、前記ステップ１０１に戻り上記の処
理を繰り返す。FIG. 6 is a flowchart showing the flow of overcharge and overdischarge processing of the central processing unit 9-2. First, the difference 1 between the output value ■ of the current sensor 3 and the output value I of the current sensor 4
．． A charging current Ia and a discharging current are determined from -In (step 101). That is, if 1l-I2 is positive, it is charging, and its value indicates the charging current value, and if 11L is negative, it is discharging, and its value indicates the discharging current value. Next, step 101
It is determined whether the result is charging or discharging (step 102), and if charging, the output of the voltage sensor 5, that is, the terminal voltage value V of the storage battery 2 is read (step 103). Next, referring to the table stored in the storage device 9-3, it is determined whether or not the storage battery 2 is overcharged (step 104). If it is overcharged, the operation circuit 10 is driven and the switch 7 is turned OFF.
F[,,,Stop power supply from solar cells (Step 1
05). In step 104, if there is no overcharging, a predetermined time is counted, and when the predetermined time has elapsed (steps 106 and 107), the process returns to step 101 and the above process is repeated.
前記ステップ１０２において、充電でなく放電であった
ら、電圧センサ５の出力即ち蓄電池の端子電圧Ｖを読み
込む（ステップ１０８）。次に記憶装置９−３に記憶し
ているテーブルを参照し、蓄電池２が過放電にあるか否
かを判断しくステップ１０９）、もし過放電であったら
操作回路１０を起動しスイッチ８を０ＦＦｔ、、負荷電
流の供給を停止する（ステップ１１０）。前記ステップ
１０９において、過充電でなかったら所定時間計時し、
該所定時間経過したら（ステップ１１１．１１２）、前
記ステップ１０１に戻り上記の処理を繰り返す。In step 102, if the discharge is not charging, the output of the voltage sensor 5, that is, the terminal voltage V of the storage battery is read (step 108). Next, referring to the table stored in the storage device 9-3, it is determined whether or not the storage battery 2 is over-discharged (Step 109). If it is over-discharged, the operation circuit 10 is activated and the switch 8 is turned to 0FFt. ,, the supply of load current is stopped (step 110). In step 109, if there is no overcharging, a predetermined time is counted;
After the predetermined time has elapsed (steps 111 and 112), the process returns to step 101 and repeats the above process.
なお、上記実施例では蓄電池２の充電電流及び放′准電
流を検出するのに電流センサ３及び電流センサ４の出力
を演算して求めたが、蓄電池２に直接流入する電流を充
電電流として検出し、蓄電池２から直接流出する電流を
放電電流として検出してもよい。また、上記例では過充
電となる時の端子電圧に対する充Ｔ！、電流及び過放電
となる時の端子電圧に対する放電電流をテーブル化し、
記憶装置９−３に記憶する方法を示したが、これに限定
されるものではなく、例えば蓄電池２の端子電圧と充電
電流との関係或いは端子電圧と放電電流の関係を示す演
算式を基に、充放電電流及び端子電圧から演算で過充放
電を求めるようにしてもよいことは当然である。In the above embodiment, the charging current and discharge current of the storage battery 2 are calculated by calculating the outputs of the current sensor 3 and the current sensor 4, but the current flowing directly into the storage battery 2 is detected as the charging current. However, the current directly flowing out from the storage battery 2 may be detected as the discharge current. In addition, in the above example, the charging T for the terminal voltage when overcharging occurs! , make a table of the current and the discharge current with respect to the terminal voltage when overdischarge occurs,
Although the method of storing data in the storage device 9-3 has been shown, the method is not limited to this. It goes without saying that overcharging and discharging may be determined by calculation from the charging and discharging current and the terminal voltage.
以上の如く上記実施例によれは、電流センサ３．４及び
電圧センサ５からの出力により、蓄電池２の充電状態を
正確に検出し、該充電状態に基づいて過充Ｔ［及び過放
電を判断するので、過充電及び過放電が正確に検出でき
、これに基ついて蓄電池２の充放電制御するから蓄電池
２の寿命を長く保つことが可能となる。従って蓄電池２
の保守点検が困難な場所に設置きれた太陽光発電システ
ム、風力発電、波力発電システム等に用いると極めて優
れた威力を発揮する。As described above, according to the above embodiment, the state of charge of the storage battery 2 is accurately detected by the outputs from the current sensor 3.4 and the voltage sensor 5, and overcharge T [and overdischarge] are determined based on the state of charge. Therefore, overcharging and overdischarging can be accurately detected, and charging and discharging of the storage battery 2 is controlled based on this, so that the life of the storage battery 2 can be maintained for a long time. Therefore, storage battery 2
It is extremely effective when used in solar power generation systems, wind power generation, wave power generation systems, etc. that are installed in locations where maintenance and inspection is difficult.
以上説明したように本発明によれば、電圧検出手段、放
１Ｆ電流検出手段、充電電流検出手段の各検出手段から
の出力により蓄電池の正確な充電状態を検出して、過充
電或いは過放電となった時充電及び放電を停止するよう
にしたから、より正確に過充放電を防止することができ
蓄電池の寿命を長くするという優れた効果が得られる。As explained above, according to the present invention, the accurate state of charge of the storage battery is detected based on the outputs from each of the voltage detection means, the discharge 1F current detection means, and the charging current detection means, and overcharging or overdischarging is detected. Since charging and discharging are stopped when this occurs, over-charging and discharging can be more accurately prevented and the excellent effect of extending the life of the storage battery can be obtained.
また、蓄′１「池の過充電或いは過放電を検出する手段
として電圧及び電流検出手段のみで構成できるので正確
な充電制御装置を極めて安価に提供できる々いう優れた
効果も得られる。Furthermore, since the means for detecting overcharging or overdischarging of the storage battery can be constructed using only voltage and current detecting means, an excellent effect can be obtained in that an accurate charging control device can be provided at a very low cost.
第１図は本発明に係る蓄電池の充放電制御装置の構成を
示すブロック図、第２図はその制御回路構成を示すブロ
ック図、第３図は各充電状態における端子電圧と充電電
流の関係を示す図、第４図は各充電状態における端子電
圧と放電電流の関係を示す図、第５図（ａ）は蓄電池の
過充電となる端子電圧値■と充電電流値Ｉａとをテーブ
ル化した図、第５図（ｂ）は蓄電池の過放電となる端子
電圧値Ｖと充電電流値１ｂとをテーブル化した図、第６
図は中央処理装置の過充電及び過放電処理の流れを示す
フローチャートである。
図中、１ ・・・太陽電池、２・・・・蓄電池、３，４
・・・・電流センサ、５・・・・電圧センサ、６・・・
・負荷、７，８・・・・スイ・／チ、９・・・・制御回
路、１゜・・・操作回路、９−１・・・・入出力制御回
路、９−２・・・・中央処理装置、９−３・・・・記憶
装置。Fig. 1 is a block diagram showing the configuration of a storage battery charge/discharge control device according to the present invention, Fig. 2 is a block diagram showing the control circuit configuration, and Fig. 3 shows the relationship between terminal voltage and charging current in each charging state. Figure 4 is a diagram showing the relationship between terminal voltage and discharge current in each charging state, and Figure 5 (a) is a table showing terminal voltage value ■ and charging current value Ia that cause overcharging of the storage battery. , FIG. 5(b) is a table showing the terminal voltage value V and charging current value 1b that cause overdischarge of the storage battery.
The figure is a flowchart showing the flow of overcharge and overdischarge processing of the central processing unit. In the diagram, 1...Solar cell, 2...Storage battery, 3, 4
...Current sensor, 5...Voltage sensor, 6...
・Load, 7, 8...Switch/T, 9...Control circuit, 1°...Operation circuit, 9-1...Input/output control circuit, 9-2... Central processing unit, 9-3...Storage device.
Claims (1)
該蓄電池の端子電圧を検出する電圧検出手段と、該蓄電
池からの放電電流を検出する放電電流検出手段と、該蓄
電池への充電電流を検出する充電電流検出手段とを設け
ると共に、前記各検出手段からの出力により前記蓄電池
の充電状態を検出し、該蓄電池が過充電或いは過放電と
なった時、前記蓄電池の充電或いは放電を停止する制御
手段を設けたことを特徴とする蓄電池の充放電制御装置
。In a DC power supply device equipped with a DC power supply and a storage battery,
A voltage detecting means for detecting a terminal voltage of the storage battery, a discharging current detecting means for detecting a discharging current from the storage battery, and a charging current detecting means for detecting a charging current to the storage battery are provided, and each of the above-mentioned detecting means A storage battery charging/discharging control characterized in that a control means is provided for detecting the state of charge of the storage battery based on an output from the storage battery, and stopping charging or discharging of the storage battery when the storage battery becomes overcharged or overdischarged. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60213032A JPS6277026A (en) | 1985-09-25 | 1985-09-25 | Charge/discharge controller for storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60213032A JPS6277026A (en) | 1985-09-25 | 1985-09-25 | Charge/discharge controller for storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6277026A true JPS6277026A (en) | 1987-04-09 |
Family
ID=16632378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60213032A Pending JPS6277026A (en) | 1985-09-25 | 1985-09-25 | Charge/discharge controller for storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6277026A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0223753A (en) * | 1988-07-13 | 1990-01-25 | Matsushita Electric Ind Co Ltd | Codeless telephone system |
| JPH02303303A (en) * | 1989-05-15 | 1990-12-17 | Funai Electric Co Ltd | Self-propelled robot and robot system |
| JPH06283749A (en) * | 1993-02-17 | 1994-10-07 | Sanyo Electric Co Ltd | Method and circuit for detecting output of solar cell |
| JPH09322417A (en) * | 1996-05-29 | 1997-12-12 | Sanyo Electric Co Ltd | Method for discharging battery |
| JP2006025480A (en) * | 2004-07-06 | 2006-01-26 | Matsushita Electric Ind Co Ltd | Independent power supply |
| JP2006300482A (en) * | 2005-04-25 | 2006-11-02 | Hoshizaki Electric Co Ltd | Automatic ice-making machine |
| JP2009044902A (en) * | 2007-08-10 | 2009-02-26 | Origin Electric Co Ltd | Characteristic measuring device for storage battery, dc power supply system, and characteristic measuring method for storage battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5355749A (en) * | 1976-10-29 | 1978-05-20 | Matsushita Electric Ind Co Ltd | Automatic charging and discharging device |
| JPS5788836A (en) * | 1980-11-19 | 1982-06-02 | Japan Storage Battery Co Ltd | Storage battery charging device |
-
1985
- 1985-09-25 JP JP60213032A patent/JPS6277026A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5355749A (en) * | 1976-10-29 | 1978-05-20 | Matsushita Electric Ind Co Ltd | Automatic charging and discharging device |
| JPS5788836A (en) * | 1980-11-19 | 1982-06-02 | Japan Storage Battery Co Ltd | Storage battery charging device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0223753A (en) * | 1988-07-13 | 1990-01-25 | Matsushita Electric Ind Co Ltd | Codeless telephone system |
| JPH02303303A (en) * | 1989-05-15 | 1990-12-17 | Funai Electric Co Ltd | Self-propelled robot and robot system |
| JPH06283749A (en) * | 1993-02-17 | 1994-10-07 | Sanyo Electric Co Ltd | Method and circuit for detecting output of solar cell |
| JPH09322417A (en) * | 1996-05-29 | 1997-12-12 | Sanyo Electric Co Ltd | Method for discharging battery |
| JP2006025480A (en) * | 2004-07-06 | 2006-01-26 | Matsushita Electric Ind Co Ltd | Independent power supply |
| JP4552536B2 (en) * | 2004-07-06 | 2010-09-29 | パナソニック株式会社 | Independent power supply |
| JP2006300482A (en) * | 2005-04-25 | 2006-11-02 | Hoshizaki Electric Co Ltd | Automatic ice-making machine |
| JP4644520B2 (en) * | 2005-04-25 | 2011-03-02 | ホシザキ電機株式会社 | Automatic ice machine |
| JP2009044902A (en) * | 2007-08-10 | 2009-02-26 | Origin Electric Co Ltd | Characteristic measuring device for storage battery, dc power supply system, and characteristic measuring method for storage battery |
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