JPH048132A - Recognizing device for charging of battery - Google Patents
Recognizing device for charging of batteryInfo
- Publication number
- JPH048132A JPH048132A JP2109033A JP10903390A JPH048132A JP H048132 A JPH048132 A JP H048132A JP 2109033 A JP2109033 A JP 2109033A JP 10903390 A JP10903390 A JP 10903390A JP H048132 A JPH048132 A JP H048132A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- charging
- current limiting
- led
- current
- 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
- 239000004065 semiconductor Substances 0.000 claims abstract description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、バッテリー充電認識装置に関する。[Detailed description of the invention] Industrial applications The present invention relates to a battery charge recognition device.
従来の技術
従来、この種のバッテリー充電認識装置は、バッテリー
、ＬＥＤ、抵抗を備えており、バッテリーに充電用電圧
を加えることによってバッテリーに充電が行われている
ことをＬＥＤの点灯によシ確認出来るように構成されて
いる。Conventional technology Conventionally, this type of battery charge recognition device includes a battery, an LED, and a resistor, and by applying a charging voltage to the battery, it is confirmed by lighting the LED that the battery is being charged. It is configured so that it can be done.
第２図は従来のバッテリー充電認識装置の構成を示して
いる。FIG. 2 shows the configuration of a conventional battery charge recognition device.
第２図において１はバッテリーであり、充電電流制限抵
抗２に接続されている。４はＬＥＤｓの電流制限抵抗で
ある。また３は充電用の電圧が印加される入力端子であ
る。次に上記従来例の動作について説明する。第２図に
おいて、入力端子３に電圧が加わると充電電流制限抵抗
２によシ制限された電流がバッテリー１に流れ、バッテ
リー１は充電される。また入力端子３に電圧が加わると
電流制限抵抗４によシ制限された電流がＬＥＤ５に流れ
ＬＥＤ５が点灯する。In FIG. 2, 1 is a battery, which is connected to a charging current limiting resistor 2. 4 is a current limiting resistor for the LEDs. Further, 3 is an input terminal to which a voltage for charging is applied. Next, the operation of the above conventional example will be explained. In FIG. 2, when a voltage is applied to the input terminal 3, a current limited by the charging current limiting resistor 2 flows to the battery 1, and the battery 1 is charged. Further, when a voltage is applied to the input terminal 3, a current limited by the current limiting resistor 4 flows to the LED 5, and the LED 5 lights up.
このように、上記従来のバッテリー充電認識装置でもＬ
ＥＤ５が点灯するとバッテリー１に充電が開始されたこ
とを認識することができる。In this way, even with the conventional battery charge recognition device described above, L
When ED5 lights up, it can be recognized that charging of the battery 1 has started.
発明が解決しようとする課題
しかしながら、前記従来のバッテリー充電認識装置では
、充電開始を表示する表示器がバッテリー充電回路と並
列に挿入されているため、バッテリー１が接続されてい
ない場合に、当然充電は行われていないにもかかわらず
、ＬＥＤｓが点灯し充電中を表示するという問題点があ
った。Problems to be Solved by the Invention However, in the conventional battery charge recognition device, since the display that indicates the start of charging is inserted in parallel with the battery charging circuit, it is natural that charging will start when the battery 1 is not connected. There was a problem in that the LEDs would light up to indicate that charging was in progress, even though charging was not being performed.
本発明はこのような従来の問題を解決するものであシ、
充電時、バッテリーの接続の有無を確認できる、優れた
バッテリー充電認識装置を提供することを目的とするも
のである。The present invention is intended to solve these conventional problems.
The object of the present invention is to provide an excellent battery charge recognition device that can confirm whether or not a battery is connected during charging.
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、従来例の回路に半
導体スイッチを付加し、充電電流制限抵抗２における電
圧降下を利用し、バッテリーの接続の有無を確認できる
ようにしたものである。Means for Solving the Problems In order to achieve the above object, the present invention adds a semiconductor switch to the conventional circuit, and uses the voltage drop across the charging current limiting resistor 2 to make it possible to check whether or not the battery is connected. This is what I did.
作 用
したがって、本発明によれば、半導体スイッチを備える
ことによって、確実にバッテリーに充電することができ
、予期しない充電失敗を防止できるという効果を有する
。Therefore, according to the present invention, by providing the semiconductor switch, the battery can be reliably charged and unexpected charging failures can be prevented.
実施例
第１図は本発明の一実施例の構成を示すものである。第
１図において、１はバッテリーであシ、充電電流制限抵
抗２に接続され、さらに、抵抗７を介してトランジスタ
６のベースに接続すれている。４はＬＥＤｓ用の電流制
限用抵抗でありＩＥＤｓに接続されている。３は充電用
の電圧が印加される入力端子である。Embodiment FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, reference numeral 1 is a battery, which is connected to a charging current limiting resistor 2, and further connected to the base of a transistor 6 via a resistor 7. 4 is a current limiting resistor for the LEDs and is connected to the IEDs. 3 is an input terminal to which a charging voltage is applied.
次に上記実施例の動作について説明する。上記実施例に
おいてバッテリー１が接続された状態で入力端子３に電
圧が印加されると、トランジスタ６には充電電流制限抵
抗の両端に生じる電位差にヨシ、ベース電流が流れエミ
ッター、コレクタ間が導通状態になシ、電流制限抵抗４
とＬＥＤｓに電流が流れＬＥＤｓが点灯して充電中を表
示する。Next, the operation of the above embodiment will be explained. In the above embodiment, when a voltage is applied to the input terminal 3 with the battery 1 connected, a base current flows through the transistor 6 due to the potential difference generated across the charging current limiting resistor, and the emitter and collector become conductive. None, current limiting resistor 4
Current flows through the LEDs and the LEDs light up to indicate that charging is in progress.
また、バッテリー１が接続されない状態で入力端子３に
電圧が印加されると、バッテリー１には充電電流が流れ
ないため、充電電流制限抵抗２の両端には電位差を生じ
ないので、トランジスタ６にはベース電流が流れずエミ
ッター、コレクタ間が非導通状態を保持し電流制限抵抗
４とＬＥＤｓには電流が流れずＬＥＤｓは点灯しないの
で、充電中の表示は行われない。Furthermore, if a voltage is applied to the input terminal 3 while the battery 1 is not connected, no charging current flows to the battery 1, so no potential difference is generated across the charging current limiting resistor 2, so the transistor 6 Since no base current flows and a non-conducting state is maintained between the emitter and collector, no current flows through the current limiting resistor 4 and the LEDs, and the LEDs do not light up, there is no indication that charging is in progress.
なお、トランジスタの代シに、他の半導体スイッチ素子
を用いることもできる。Note that other semiconductor switching elements can also be used in place of the transistors.
発明の効果
本発明は上記実施例よシ明らかなように、以下に示す効
果を有する。Effects of the Invention As is clear from the above embodiments, the present invention has the following effects.
（１）半導体スイッチの０Ｎ−ＯＦＦをバッテリーの有
無でコントロールしているのでバッテリの非接続による
充電失敗を防止できる。(1) Since ON-OFF of the semiconductor switch is controlled depending on the presence or absence of the battery, charging failure due to disconnection of the battery can be prevented.
（２）半導体スイッチのＯＮ・ＯＦＦをバッテリーの有
無でコントロールしているので劣化の進んだバッテリー
の交換時期がわかる。(2) Since the ON/OFF of the semiconductor switch is controlled by the presence or absence of the battery, it is possible to know when to replace a battery that has deteriorated.
第１図は本発明の一実施例におけるバッテリー充電認識
装置の概略回路図、第２図は従来例におけるバッテリー
充電認識装置の概略回路図である。
１・・・・・・バッチｙ−１２・・・・・・充電電流制
限抵抗、３・・・・・・充電用の入力端子、４・・・・
・・ＬＥＤ用電流制限抵抗、６・・・・・・ＬＥＤ、６
・・・・・・トランジスタ、７・・・・・・ベース抵抗
。
代理人の氏名 弁理士 粟 野 重 孝 ほか１名第
第
図
図
？
へ゛ツテソ
４− 電 ）丸 掻り ？艮 才ｐ（９１乙入オｔｔ
＆）
ＬＥＤ
トランジスタ
４氏抗FIG. 1 is a schematic circuit diagram of a battery charge recognition device according to an embodiment of the present invention, and FIG. 2 is a schematic circuit diagram of a battery charge recognition device in a conventional example. 1... Batch y-12... Charging current limiting resistor, 3... Input terminal for charging, 4...
...LED current limiting resistor, 6...LED, 6
...Transistor, 7...Base resistance. Name of agent: Patent attorney Shigetaka Awano and one other person Figure 1? Hetsu Teso 4-Electric) Round scratch? Ai Saip (91 Otiri Ott)
&) LED transistor 4 resistor
Claims (1)
に接続された充電電流制限抵抗と、充電電流が前記充電
電流制限抵抗の両端に作る電位差によって閉路する半導
体スイッチと、半導体スイッチの閉路により点灯する表
示器を備えたバッテリー充電認識装置。A charging current limiting resistor connected between the battery and an input terminal to which a charging voltage is applied; a semiconductor switch that closes due to the potential difference created by the charging current across the charging current limiting resistor; Battery charge recognition device with illuminated indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2109033A JPH048132A (en) | 1990-04-25 | 1990-04-25 | Recognizing device for charging of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2109033A JPH048132A (en) | 1990-04-25 | 1990-04-25 | Recognizing device for charging of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH048132A true JPH048132A (en) | 1992-01-13 |
Family
ID=14499909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2109033A Pending JPH048132A (en) | 1990-04-25 | 1990-04-25 | Recognizing device for charging of battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7341387B2 (en) | 2004-03-08 | 2008-03-11 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus |
| US8342516B2 (en) | 2007-11-26 | 2013-01-01 | Oki Data Corporation | Image reading apparatus and image forming system |
-
1990
- 1990-04-25 JP JP2109033A patent/JPH048132A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7341387B2 (en) | 2004-03-08 | 2008-03-11 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus |
| US7674057B2 (en) | 2004-03-08 | 2010-03-09 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus |
| US8342516B2 (en) | 2007-11-26 | 2013-01-01 | Oki Data Corporation | Image reading apparatus and image forming system |
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