JP3162613B2 - Adjustment device for charge control device - Google Patents
Adjustment device for charge control deviceInfo
- Publication number
- JP3162613B2 JP3162613B2 JP28196695A JP28196695A JP3162613B2 JP 3162613 B2 JP3162613 B2 JP 3162613B2 JP 28196695 A JP28196695 A JP 28196695A JP 28196695 A JP28196695 A JP 28196695A JP 3162613 B2 JP3162613 B2 JP 3162613B2
- Authority
- JP
- Japan
- Prior art keywords
- current
- control device
- charging
- charge control
- charge
- 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 - Fee Related
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)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、携帯電話機や携帯
無線機等の移動器等の内部に設けられて、内部の電池を
充電するための充電制御装置の充電電流をモニタする充
電制御装置用調整装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging control device for monitoring a charging current of a charging control device for charging an internal battery, which is provided inside a mobile device such as a portable telephone or a portable wireless device. The present invention relates to an adjusting device.
【０００２】[0002]
【従来の技術】図２は従来のこの種の充電制御装置と調
整装置の構成を示すものである。図２において、１０１
は充電制御装置全体を示す。充電制御装置１０１におい
て、１０２は外部入力電圧に対する保護ダイオード、１
０３は充電電圧を検出する電圧検出回路である。１０４
は誤差アンプであり、電圧検出回路１０３で検出された
充電電圧とマイコン１０４から出力された充電指令電圧
とを比較して、出力回路１０６から出力される充電電圧
を一定に制御する。１０７は充電完了時に充電電流検出
抵抗１０８により検出された電池からの充電完了電流を
検出する電流検出回路である。１０９は充電制御装置の
充電電流をモニタする調整装置であり、電圧検出回路１
１０と調整回路１１１とからなる。2. Description of the Related Art FIG. 2 shows the configuration of a conventional charge control device and an adjusting device of this type. In FIG.
Indicates the entire charge control device. In the charge control device 101, reference numeral 102 denotes a protection diode for an external input voltage, 1
03 is a voltage detection circuit for detecting a charging voltage. 104
Reference numeral denotes an error amplifier which compares the charging voltage detected by the voltage detecting circuit 103 with the charging command voltage output from the microcomputer 104, and controls the charging voltage output from the output circuit 106 to be constant. Reference numeral 107 denotes a current detection circuit that detects a charge completion current from the battery detected by the charge current detection resistor 108 when charging is completed. An adjustment device 109 monitors a charging current of the charging control device, and includes a voltage detection circuit 1.
10 and an adjustment circuit 111.
【０００３】充電制御装置１０１には、通常は充電すべ
き電池が接続されて充電が行なわれる。電池への充電中
は、充電が正しく行なわれているかどうかを調べるため
に、充電電流を検出する必要がある。この充電電流は、
使用する充電制御装置１０１によりばらつきがあるの
で、個別に調整する必要があり、その調整のために調整
装置１０９が使用される。A charge control device 101 is normally connected to a battery to be charged to perform charging. During charging of the battery, it is necessary to detect a charging current in order to check whether charging is performed correctly. This charging current is
Since there is a variation depending on the charging control device 101 to be used, it is necessary to adjust individually, and the adjusting device 109 is used for the adjustment.
【０００４】充電する電池がリチウム電池の場合、充電
完了電流は１００ｍＡである。この１００ｍＡを充電制
御装置１０１内部の電流検出抵抗１０８で検出するが、
回路にばらつきがあるため、調整装置１０９から個々の
充電制御装置１０１毎に実際に１００ｍＡの電流を流し
て、そのときの電流検出抵抗１０８の電圧降下を電流検
出回路１０７により検出してマイコン１０５に記憶す
る。これをＥＶ調整と呼んでいる。このとき、調整回路
１０９内の調整回路１１１では、図示されない電流源に
より１００ｍＡの電流を流し、マイコン１０５に伝え
る。またこのとき、充電完了電流を１００ｍＡに調整す
るために、外部入力電圧も調整している。When the battery to be charged is a lithium battery, the charging completion current is 100 mA. This 100 mA is detected by the current detection resistor 108 inside the charge control device 101.
Since there is a variation in the circuit, a current of 100 mA is actually passed from the adjusting device 109 to each of the charging control devices 101, and the voltage drop of the current detecting resistor 108 at that time is detected by the current detecting circuit 107 and the microcomputer 105 Remember. This is called EV adjustment. At this time, in the adjustment circuit 111 in the adjustment circuit 109, a current of 100 mA flows from a current source (not shown) and transmits the current to the microcomputer 105. At this time, the external input voltage is also adjusted in order to adjust the charging completion current to 100 mA.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来の調整装置では、調整回路における電流源の設備コス
トがかかり、また充電完了電流を調整するために充電制
御装置の外部入力電圧も調整しなければならないので、
調整に時間がかかるという問題があった。However, in the above-mentioned conventional adjusting device, the equipment cost of the current source in the adjusting circuit is increased, and the external input voltage of the charging control device must be adjusted in order to adjust the charging completion current. Because
There was a problem that adjustment took time.
【０００６】本発明は、このような従来の問題を解決す
るものであり、低コストで短時間に調整が可能な充電制
御装置用調整装置を提供することを目的とする。An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide an adjustment device for a charge control device which can be adjusted at a low cost in a short time.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記目的を達
成するために、充電制御装置から調整装置に一定の電圧
を出力し、調整装置では、入力側に設けた電流設定負荷
により所定の電流値が得られるようにしたものであり、
調整装置を極めて簡素化できるので、装置を低コストで
実現でき、調整も短時間で行なうことができる。According to the present invention, in order to achieve the above object, a constant voltage is output from a charging control device to a regulating device, and the regulating device uses a current setting load provided on an input side to output a predetermined voltage. The current value can be obtained,
Since the adjusting device can be extremely simplified, the device can be realized at low cost, and the adjustment can be performed in a short time.
【０００８】[0008]
【発明の実施の形態】本発明の請求項１に記載の発明
は、電池を充電するために一定の電圧を出力する充電制
御装置の充電完了電流を調整するための充電制御装置用
調整装置において、充電制御装置から出力された一定電
圧により所定の電流が流れるように抵抗値を定められた
電流設定負荷を入力側に備えたものであり、従来必要で
あった調整装置側の電流源の代わりに簡単な抵抗負荷だ
けで済むので、調整装置を低コストで実現でき、充電制
御装置側の外部入力電圧の調整が不要になるので、調整
を短時間で行なうことができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention is for a charge control device for adjusting a charge completion current of a charge control device that outputs a constant voltage to charge a battery. > The adjusting device is provided with a current setting load having a resistance value determined so that a predetermined current flows by a constant voltage output from the charging control device on the input side. Since only a simple resistance load is used instead of the current source, the adjustment device can be realized at low cost, and adjustment of the external input voltage on the charge control device side is unnecessary, so that the adjustment can be performed in a short time.
【０００９】本発明の請求項２に記載の発明は、充電制
御装置が、調整装置の電流設定負荷に流れる電流を検出
してそのときの電圧降下を記憶し、その値によって充電
完了電流を設定するマイクロコンピュータを備えたもの
であり、充電完了電流の調整を確実に行なうことができ
る。According to a second aspect of the present invention, the charging control device detects a current flowing through a current setting load of the adjusting device, stores a voltage drop at that time, and sets a charging completion current based on the value. The microcomputer is provided with a microcomputer for controlling the charging completion current.
【００１０】（実施の形態）図１は本発明の一実施の形
態を示すものであり、図２に示した調整装置に電流設定
負荷を追加したものである。図１において、１は充電制
御装置全体を示す。充電制御装置１において、２は外部
入力電圧に対する保護ダイオード、３は充電電圧を検出
する電圧検出回路である。４は誤差アンプであり、電圧
検出回路３で検出された充電電圧とマイコン５から出力
された充電指令電圧とを比較して、出力回路６から出力
される充電電圧を一定に制御する。７は充電完了時に充
電電流検出抵抗８により検出された電池からの充電完了
電流を検出する電流検出回路である。９は充電制御装置
の充電電流をモニタする調整装置であり、電圧検出回路
１０および調整回路１１と、電流検出回路１０の入力側
と接地との間に接続された電流設定負荷１２とからな
る。(Embodiment) FIG. 1 shows an embodiment of the present invention, in which a current setting load is added to the adjusting device shown in FIG. In FIG. 1, reference numeral 1 denotes the entire charge control device. In the charge control device 1, reference numeral 2 denotes a protection diode for an external input voltage, and reference numeral 3 denotes a voltage detection circuit for detecting a charge voltage. An error amplifier 4 compares the charging voltage detected by the voltage detecting circuit 3 with the charging command voltage output from the microcomputer 5, and controls the charging voltage output from the output circuit 6 to be constant. Reference numeral 7 denotes a current detection circuit that detects a charge completion current from the battery detected by the charge current detection resistor 8 when the charge is completed. Reference numeral 9 denotes an adjusting device for monitoring the charging current of the charging control device, which comprises a voltage detecting circuit 10 and an adjusting circuit 11, and a current setting load 12 connected between the input side of the current detecting circuit 10 and the ground.
【００１１】上記構成において、マイコン５から例えば
出力が４．０Ｖになるような充電指令電圧を出力し、そ
のときに調整装置９側の電流設定負荷を４０Ωに設定し
ておくと、自動的に電流検出抵抗８に流れる電流は１０
０ｍＡに設定することができる。このときの電圧降下を
電流検出回路７を通してマイコン５で記憶し、演算する
ことにより、充電完了電流を正しく設定することがで
き、電池充電時には電池の満充電を確実に検出すること
ができる。In the above configuration, if the microcomputer 5 outputs a charge command voltage such that the output becomes 4.0 V, for example, and if the current setting load on the adjustment device 9 side is set to 40Ω, the microcomputer 5 automatically outputs the charge command voltage. The current flowing through the current detection resistor 8 is 10
It can be set to 0 mA. The voltage drop at this time is stored and calculated by the microcomputer 5 through the current detection circuit 7, so that the charge completion current can be correctly set, and the full charge of the battery can be reliably detected when the battery is charged.
【００１２】このように、上記実施の形態によれば、調
整回路９に４０Ωの抵抗を接続するという極めて簡単な
構成にしたので、調整装置９を低コストで実現でき、し
かも外部入力電圧の調整が不要なので、調整を短時間で
行なうことができる。As described above, according to the above-described embodiment, since the adjusting circuit 9 is connected to the resistor of 40 Ω in a very simple configuration, the adjusting device 9 can be realized at low cost, and the adjustment of the external input voltage can be achieved. Is unnecessary, so that the adjustment can be performed in a short time.
【００１３】[0013]
【発明の効果】以上の説明から明らかなように、本発明
によれば、充電制御装置側でマイクロコンピュータによ
り一定の電圧を調整装置側に出力させ、調整装置の入力
側に設けた電流設定負荷に流れる電流を、充電制御装置
側の電流検出抵抗および電流検出回路により検出してマ
イクロコンピュータに記憶することにより、充電完了電
流を正しく調整することができる。これにより、従来必
要であった調整装置側の電流源の代わりに簡単な抵抗負
荷だけで済むので、調整装置を低コストで実現でき、充
電制御装置側の外部入力電圧の調整が不要になるので、
調整を短時間で行なえるという効果を有する。As is apparent from the above description, according to the present invention, the microcomputer on the charging control device side outputs a constant voltage to the adjusting device side, and the current setting load provided on the input side of the adjusting device. By detecting the current flowing in the microcomputer by the current detection resistor and the current detection circuit on the charge control device side and storing the detected current in the microcomputer, the charge completion current can be adjusted correctly. As a result, a simple resistance load can be used instead of the current source on the adjusting device, which was conventionally required, so that the adjusting device can be realized at low cost, and the adjustment of the external input voltage on the charging control device is unnecessary. ,
This has the effect that adjustment can be performed in a short time.
【図１】本発明の一実施の形態における充電制御装置と
調整装置の概略ブロック図FIG. 1 is a schematic block diagram of a charge control device and an adjustment device according to an embodiment of the present invention.
【図２】従来例における充電制御装置と調整装置の概略
ブロック図FIG. 2 is a schematic block diagram of a charge control device and an adjustment device in a conventional example.
１ 充電制御装置 ２ 保護ダイオード ３ 電圧検出回路 ４ 誤差アンプ ５ マイコン ６ 出力回路 ７ 電流検出回路 ８ 電流検出抵抗 ９ 調整装置 １０ 電圧検出回路 １１ 調整回路 １２ 電流設定負荷 DESCRIPTION OF SYMBOLS 1 Charge control device 2 Protection diode 3 Voltage detection circuit 4 Error amplifier 5 Microcomputer 6 Output circuit 7 Current detection circuit 8 Current detection resistor 9 Adjustment device 10 Voltage detection circuit 11 Adjustment circuit 12 Current setting load
Claims (2)
する充電制御装置の充電完了電流を調整するための充電
制御装置用調整装置において、充電制御装置から出力さ
れた一定電圧により所定の電流が流れるように抵抗値を
定められた電流設定負荷を入力側に備えたことを特徴と
する充電制御装置用調整装置。1. A charge control device adjusting device for adjusting a charge completion current of a charge control device that outputs a constant voltage to charge a battery, wherein a predetermined current is controlled by a constant voltage output from the charge control device. An adjustment device for a charge control device, comprising a current setting load having a resistance value determined so that a current flows through the input side.
荷に流れる電流を検出してそのときの電圧降下を記憶
し、その値によって充電完了電流を設定するマイクロコ
ンピュータを備えたことを特徴とする請求項１記載の充
電制御装置用調整装置。2. A charging control device comprising: a microcomputer for detecting a current flowing through a current setting load of the adjusting device, storing a voltage drop at that time, and setting a charging completion current based on the value. The adjustment device for a charge control device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28196695A JP3162613B2 (en) | 1995-10-30 | 1995-10-30 | Adjustment device for charge control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28196695A JP3162613B2 (en) | 1995-10-30 | 1995-10-30 | Adjustment device for charge control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09130979A JPH09130979A (en) | 1997-05-16 |
| JP3162613B2 true JP3162613B2 (en) | 2001-05-08 |
Family
ID=17646387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28196695A Expired - Fee Related JP3162613B2 (en) | 1995-10-30 | 1995-10-30 | Adjustment device for charge control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3162613B2 (en) |
-
1995
- 1995-10-30 JP JP28196695A patent/JP3162613B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09130979A (en) | 1997-05-16 |
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