JPS63158753A - Battery discharge circuit - Google Patents
Battery discharge circuitInfo
- Publication number
- JPS63158753A JPS63158753A JP61305709A JP30570986A JPS63158753A JP S63158753 A JPS63158753 A JP S63158753A JP 61305709 A JP61305709 A JP 61305709A JP 30570986 A JP30570986 A JP 30570986A JP S63158753 A JPS63158753 A JP S63158753A
- Authority
- JP
- Japan
- Prior art keywords
- batteries
- battery
- resistor
- discharge
- transistor
- 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
- 238000007599 discharging Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 208000032953 Device battery issue Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
- H01M6/5011—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature for several cells simultaneously or successively
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、電池を製造又は評価する工程において使用
する電池放電用回路に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a battery discharging circuit used in the process of manufacturing or evaluating batteries.
この発明は電池放電用回路において、単位時間内の放電
量を一定に保ち、更に１組の回路で複数個の電池を同時
に放電できるようにしたものである。The present invention is a battery discharging circuit in which the amount of discharge within a unit time is kept constant, and furthermore, one set of circuits can discharge a plurality of batteries at the same time.
従来の電池放電用回路は、第２図に示すように固定抵抗
器９の両端に接触端子１０を接続し、前記接触端子によ
って対象電池の両端を接続するものが一般的であった。In conventional battery discharging circuits, as shown in FIG. 2, contact terminals 10 are connected to both ends of a fixed resistor 9, and the contact terminals are used to connect both ends of the target battery.
しかし従来の放電用回路は、電池１１の起電力や内部抵
抗ｒｌのバラツキにより、放電電流は一定とはならず、
従って一定時間内の放電電気量もバラツクことになり、
電池の正しい評価などには不十分であった。However, in the conventional discharging circuit, the discharging current is not constant due to variations in the electromotive force and internal resistance rl of the battery 11.
Therefore, the amount of electricity discharged within a certain period of time will also vary,
This was insufficient for correct evaluation of batteries.
又、多数の電池を評価する場合には、電池の数に相当す
る数の回路数が必要となり、接触端子１０や固定抵抗器
９の数も増えることになる。Further, when evaluating a large number of batteries, the number of circuits corresponding to the number of batteries is required, and the number of contact terminals 10 and fixed resistors 9 also increases.
第３図のように複数の電池を放電させる場合は、第２図
の回路以上に、電池の起電力、電池内部抵抗ｒｉのバラ
ツキが大きくなり、定電流の保証はむずかしくなる。When discharging a plurality of batteries as shown in FIG. 3, variations in the electromotive force of the batteries and battery internal resistance ri become larger than in the circuit shown in FIG. 2, making it difficult to guarantee a constant current.
そこでこの発明は、従来のこのような欠点を解決するた
め、電池の放電電流を一定に保ち、更に複数個の電池を
同時に放電可能とすることを目的としている。SUMMARY OF THE INVENTION In order to solve these conventional drawbacks, it is an object of the present invention to maintain a constant battery discharge current and to enable a plurality of batteries to be discharged simultaneously.
上記問題点を解決するため、この発明はトランジスタ、
エミッタ抵抗器、ベース抵抗器、ベース電圧電源、コレ
クタバイアス電源を用いた定電流回路にし、更に定電流
検出用コレクタ抵抗器を用いることにより、接触端子の
接触不良や電池不良などにより定電流が保証されない場
合のチェックも行うている。In order to solve the above problems, the present invention provides a transistor,
By using a constant current circuit using an emitter resistor, base resistor, base voltage power supply, and collector bias power supply, and also using a collector resistor for constant current detection, constant current is guaranteed even if there is a contact failure in the contact terminal or a battery failure. A check is also made if this is not the case.
以下に、この発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図においてトランジスタ１．エミッタ抵抗器２．ベ
ース抵抗器３．定電流検出用抵抗器４．接触端子５．ベ
ース電圧用電Ｒ７，コレクタバイアス電圧用電ａＳを示
し、接ＩＭ端子５の間に複数または、１個の放電用電池
が接続される。In FIG. 1, transistor 1. Emitter resistor 2. Base resistor 3. Constant current detection resistor 4. Contact terminal 5. A base voltage voltage R7 and a collector bias voltage voltage aS are shown, and a plurality of discharge batteries or one discharge battery is connected between the contact IM terminal 5.
次に本回路において電池の放電電流ｔｃが、どのように
決定されるかを示す。Next, we will show how the battery discharge current tc is determined in this circuit.
トランジスタ１の不飽和領域、すなわちＥＣ＋Ｖｓａ＞
（ｒｉ＋Ｒｓ）−３ｃ＋（ｉｂ＋ｉｃ）・Ｒ，−１弐が
成り立つ範囲では、
Ｈａ Ｖｍｚ−Ｒｚ・１ｂ−（ｉｂ＋１ｃ）４１ ”
・”２式％式％）
ｊａｍ□・・・・３式
Ｒ＋
となり、電池の放電電流ｉｃは、固定抵抗器Ｒ，，ｐｇ
を一定にすれば、はぼベース電圧Ｅｓにより決定される
。Unsaturated region of transistor 1, that is, EC+Vsa>
In the range where (ri+Rs)-3c+(ib+ic)・R,-12 holds true, Ha Vmz-Rz・1b-(ib+1c)41"
・"2 formula % formula %) jam□...3 formula R+, and the discharge current ic of the battery is fixed resistor R,,pg
If it is kept constant, it is determined by the base voltage Es.
従って１式が成り立ち、かつトランジスタ及び抵抗器の
定格を満足する範囲において、対象電池の数を増やし、
同時に放電させる事が可能となる。Therefore, as long as equation 1 holds true and the ratings of transistors and resistors are satisfied, increase the number of target batteries,
It becomes possible to discharge at the same time.
この事により多数の電池を放電させる場合、放電回路数
及び接触端子数の節約となる。This saves the number of discharge circuits and contact terminals when discharging a large number of batteries.
なお、この場合コレクタバイアス電源８．ベース電圧電
源７を各放電回路間で共用する事は可能である。In this case, the collector bias power supply 8. It is possible to share the base voltage power supply 7 between each discharge circuit.
反対にトランジスタｌの飽和領域、すなわちＥＣ＋ＶＩ
Ａ＜ （ｒｉ ＋Ｒｓ）・ｉｃ＋（ｉｂ＋ｉｃ）・Ｒ＋
・・・４式が成り立つ範囲では、
となり、コレクタバイアス電圧ＥＣｒ エミッタ抵抗器
Ｒ８定電流検出用抵抗器１ｈを一定とすれば放電電流ｉ
ｃは、はぼ電池の内部抵抗「ｉの値に依存する。On the contrary, the saturation region of transistor l, that is, EC+VI
A< (ri +Rs)・ic+(ib+ic)・R+
...In the range where formula 4 holds true, the following is true.If the collector bias voltage ECr, the emitter resistor R8, and the constant current detection resistor 1h are constant, then the discharge current i
c depends on the value of i, the internal resistance of the battery.
すなわち、電池内部抵抗ｒｉが太き（なり、１式が満足
しなくなると放電電流ｉｃが小さくなり一定とならなく
なる。That is, when the battery internal resistance ri becomes large (and the first equation is no longer satisfied), the discharge current ic becomes small and becomes unstable.
又、接触端子５と電池６間、および電池６相互間の接触
不良がある場合も、電池内部抵抗ｒｉが大きくなるのと
同様の結果として表われる。Furthermore, if there is poor contact between the contact terminal 5 and the battery 6, or between the batteries 6, the same result as the internal battery resistance ri increases.
従って、複数個の電池内、内部抵抗ｒｉの異常に大きな
電池が１個でも混入すると１式が成立しなくなる。その
結果、定電流は保証されず他の残りの電池に悪影響を、
およぼすことになる。Therefore, if even one battery with an abnormally large internal resistance ri is mixed in among the plurality of batteries, one equation will not hold. As a result, constant current is not guaranteed and other remaining batteries are adversely affected.
It will cause a lot of trouble.
本発明では、これを防ぐために定電流検出用抵抗器４を
設け、この両端の電圧Ｖｃをチェックすることにより定
電流が流れている事が確認できるようにした。In the present invention, in order to prevent this, a constant current detection resistor 4 is provided, and by checking the voltage Vc across this resistor 4, it is possible to confirm that a constant current is flowing.
なお、エミッタ抵抗Ｒ１の両端電圧Ｖ、をチェックして
も定電流の確認が可能なように見えるが、これは適当で
ない、接触端子５がはずれている場合でもベース電圧電
源７からｉｂの増加という形で電流が供給されるからで
ある。放電量のバラツキを発生させない為、定電流異常
の場合は、直ちに接触端子を切り離しオペレータに知ら
せる機構を設ける事は容易である。Although it seems possible to confirm the constant current by checking the voltage V across the emitter resistor R1, this is not appropriate. Even if the contact terminal 5 is disconnected, the base voltage power source 7 will cause an increase in ib. This is because current is supplied in the form of In order to prevent variations in the amount of discharge, it is easy to provide a mechanism that immediately disconnects the contact terminal and notifies the operator in the event of a constant current abnormality.
又、コレクタにシリーズにＬＥＤを接続し異常表示する
ようにしても良い。Alternatively, an LED may be connected in series to the collector to indicate an abnormality.
この発明は、以上説明したように基本的に１個のトラン
ジスタと３個の固定抵抗器、接触端子という簡単な回路
で、同時に複数の電池を放電させる事ができ、また電流
値も電池の起電力に影響されず一定に保つ事ができる。As explained above, this invention basically uses a simple circuit consisting of one transistor, three fixed resistors, and a contact terminal, and can discharge multiple batteries at the same time. It can be kept constant without being affected by power.
第１図は、この発明にかかる電池放電回路図、第２図は
、従来の電池放電回路図、第３図は、複数の電池を扱う
場合の従来の電池放電回路図である。
１・・・トランジスタ
２・・・エミンタ抵抗器
３・・・ベース抵抗器
４・・・定電流検出用コレクタ抵抗器
５・・・接触端子
６・・・電池
７・・・ベース電圧用電源
８・・・コレクタバイアス電圧用電源
以上
【−ＪFIG. 1 is a battery discharge circuit diagram according to the present invention, FIG. 2 is a conventional battery discharge circuit diagram, and FIG. 3 is a conventional battery discharge circuit diagram when handling a plurality of batteries. 1... Transistor 2... Eminter resistor 3... Base resistor 4... Collector resistor for constant current detection 5... Contact terminal 6... Battery 7... Base voltage power supply 8 ...Collector bias voltage power supply or higher [-J
Claims (1)
の両端に放電電流を決定する為のベース電圧電源を接続
し、更に電流検出用コレクタ抵抗、電池接触用端子を介
して対象となる電池の極に接続され、電池のもう一方の
極と前記エミッタ抵抗間にコレクタバイアス用電源を設
ける事により複数の電池を同時に、かつ一定の値で放電
できるようにしたことを特徴とする電池放電用回路。Connect the emitter resistor and base resistor to the transistor, connect the base voltage power supply to determine the discharge current to both ends, and connect to the target battery pole via the collector resistor for current detection and the battery contact terminal. A battery discharging circuit characterized in that a collector bias power source is provided between the other pole of the battery and the emitter resistor so that a plurality of batteries can be discharged simultaneously and at a constant value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61305709A JPS63158753A (en) | 1986-12-22 | 1986-12-22 | Battery discharge circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61305709A JPS63158753A (en) | 1986-12-22 | 1986-12-22 | Battery discharge circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63158753A true JPS63158753A (en) | 1988-07-01 |
Family
ID=17948412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61305709A Pending JPS63158753A (en) | 1986-12-22 | 1986-12-22 | Battery discharge circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63158753A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5424641A (en) * | 1992-07-24 | 1995-06-13 | Fujitsu Limited | SQUID fluxmeter having a pulse mulliplication circuit number for accurately measuring large rates of change in flux |
-
1986
- 1986-12-22 JP JP61305709A patent/JPS63158753A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5424641A (en) * | 1992-07-24 | 1995-06-13 | Fujitsu Limited | SQUID fluxmeter having a pulse mulliplication circuit number for accurately measuring large rates of change in flux |
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