JPH02254935A - Charging apparatus - Google Patents
Charging apparatusInfo
- Publication number
- JPH02254935A JPH02254935A JP7265389A JP7265389A JPH02254935A JP H02254935 A JPH02254935 A JP H02254935A JP 7265389 A JP7265389 A JP 7265389A JP 7265389 A JP7265389 A JP 7265389A JP H02254935 A JPH02254935 A JP H02254935A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- voltage
- secondary battery
- charged
- circuit
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 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】
［発明の目的］
（産業上の利用分野）
本発明は、充電体と被充電体とからなる充電装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a charging device including a charging body and a charged body.
（従来の技術）
２次電池から内部回路へ電圧を供給されて作動する被充
電体は、適時充電体により２次電池を充電する必要があ
る。(Prior Art) A charged object that operates by supplying voltage to an internal circuit from a secondary battery needs to timely charge the secondary battery with a charging body.
従来の充電装置を第３図に示す。この充電装置は充電体
１と被充電体２とが、電圧供給インターフェイス３によ
り接続される。A conventional charging device is shown in FIG. In this charging device, a charging body 1 and a charged body 2 are connected through a voltage supply interface 3.
被充電体２では、逆流防止ダイオード４、電流制限抵抗
５．２次電池６が直列に接続され、正電極７にはスイッ
チ８を介して内部回路９が接続される。充電体１は内部
に定電圧回路１０を有する。In the charged object 2, a backflow prevention diode 4, a current limiting resistor 5, and a secondary battery 6 are connected in series, and an internal circuit 9 is connected to the positive electrode 7 via a switch 8. The charging body 1 has a constant voltage circuit 10 inside.
充電体１と被充電体２を接続して充電を行う場合、充電
体１の定電圧回路１０より供給電圧が出力され、電圧供
給インターフェイス３を介し、被充電体２の逆流防止ダ
イオード４および電流制限抵抗５を介し２次電池６が充
電される。電流制限抵抗５は２次電池６が過充電になら
ないように電流を制限している。充電体１と被充電体２
を切り離した場合、スイッチ８をオンの状態にすること
で２次電池６からスイッチ８を介し内部回路９に電圧を
供給することができる。When charging is performed by connecting the charging object 1 and the object to be charged 2, the supply voltage is output from the constant voltage circuit 10 of the charging object 1, and the voltage is supplied to the backflow prevention diode 4 of the object to be charged 2 and the current through the voltage supply interface 3. A secondary battery 6 is charged via a limiting resistor 5. The current limiting resistor 5 limits the current to prevent the secondary battery 6 from being overcharged. Charging body 1 and charged body 2
When the switch 8 is disconnected, voltage can be supplied from the secondary battery 6 to the internal circuit 9 via the switch 8 by turning on the switch 8 .
この従来の充電装置では、充電体１を被充電体２に接続
した時、２次電池６が十分に充電されて２次電池６の正
電極７の電位がある一定電位に達するまで、２次電池６
は内部回路９に電圧を供給できない。したがって、充電
中は２次電池６が一定電位に達するまで、被充電体２は
使用できないという問題があった。In this conventional charging device, when the charging body 1 is connected to the charged body 2, the secondary battery 6 is charged until the positive electrode 7 of the secondary battery 6 reaches a certain potential. battery 6
cannot supply voltage to the internal circuit 9. Therefore, there is a problem in that the object to be charged 2 cannot be used during charging until the secondary battery 6 reaches a certain potential.
また、充電は定電圧回路１０と２次電池６の電位差によ
るものであるが、２次電池６の充電容量が増してくると
、２次電池６の正電極７の電位が上がり定電圧回路１０
との電位差が小さくなる。Further, charging is based on the potential difference between the constant voltage circuit 10 and the secondary battery 6, but as the charging capacity of the secondary battery 6 increases, the potential of the positive electrode 7 of the secondary battery 6 increases and the voltage difference between the constant voltage circuit 10 and the secondary battery 6 increases.
The potential difference between the
したがって、供給電流が少なくなり、充電に時間がかか
り効率が悪いという問題があった。そのため、電流制限
抵抗５を小さくして急速充電を行うと過充電になる危険
性が有り、２次電池６の性能を劣化させるという問題が
あった。Therefore, there was a problem in that the supplied current was reduced, and charging took a long time, resulting in poor efficiency. Therefore, if rapid charging is performed with the current limiting resistor 5 made small, there is a risk of overcharging, which poses a problem of degrading the performance of the secondary battery 6.
（発明が解決しようとする課題）
従来の充電装置は、充電中は２次電池の正電極の電位が
一定電位に達するまで、内部回路に電圧が供給できず充
電しながら被充電体を使用できないという課題があった
。(Problems to be Solved by the Invention) Conventional charging devices cannot supply voltage to the internal circuit during charging until the potential of the positive electrode of the secondary battery reaches a certain level, making it impossible to use the object to be charged while charging. There was a problem.
また、２次電池の充電容量が増してくると、２次電池と
電源との電位差が小さく、充電電流が少なくなり、充電
に時間がかかり効率が悪いという課題があった。そのた
め、大きな電流で急速充電を行うと、過充電となり２次
電池の性能を劣化させるという課題があった。Further, as the charging capacity of the secondary battery increases, the potential difference between the secondary battery and the power source becomes small, the charging current decreases, and there is a problem that charging takes a long time and is inefficient. Therefore, there is a problem in that when rapid charging is performed with a large current, overcharging occurs and the performance of the secondary battery deteriorates.
本発明はこのような課題に鑑みてなされたもので、その
目的とするところは、充電中で−も２次電池の電位にか
かわらず被充電体を使用でき、また２次電池の性能を劣
化させることなく短時間で効率よく充電できる充電装置
を提供することにある。The present invention has been made in view of these problems, and its purpose is to allow the object to be charged to be used regardless of the potential of the secondary battery even during charging, and to prevent deterioration of the performance of the secondary battery. To provide a charging device capable of efficiently charging in a short period of time without causing problems.
［発明の構成］
（課題を解決するための手段）
本発明は、充電体で被充電体を充電する充電装置におい
て、前記充電体は、前記被充電体に電圧を供給する定電
圧回路と、前記被充電体の制御回路から送られるデータ
に応じて前記定電圧回路の供給電圧を制御する電圧制御
回路とからなり、前記被充電体は、充電回路に充電され
る２次電池と、前記２次電池の充電容量を検出する検出
回路と、前記２次電池への充電と前記２次電池から被充
電体内部回路への電源供給の切換えを行うスイッチ手段
と、検出回路とスイッチ手段の動作制御を行う制御回路
を設け、２次電池への電源供給ラインと内部回路への電
源供給ラインとからなることを特徴とする。[Structure of the Invention] (Means for Solving the Problems) The present invention provides a charging device that charges an object to be charged with a charging object, wherein the charging object includes a constant voltage circuit that supplies voltage to the object to be charged; a voltage control circuit that controls the supply voltage of the constant voltage circuit according to data sent from a control circuit of the object to be charged, and the object to be charged includes a secondary battery charged in a charging circuit; a detection circuit for detecting the charge capacity of a secondary battery; a switch means for charging the secondary battery and switching the power supply from the secondary battery to the internal circuit of the object to be charged; and operation control of the detection circuit and the switch means. The device is characterized in that it is provided with a control circuit that performs this, and consists of a power supply line to the secondary battery and a power supply line to the internal circuit.
（作用）
本発明では、充電体と被充電体を接続し被充電体を充電
する時、充電体から被充電体の２次電池に電源電圧が供
給され、被充電体の検出回路は２次電池の充電容量を検
出し充電電流を一定とし、効率よく充電させる。また、
充電体の電圧制御回路は検出回路で充電容量を検出でき
なくなっても、制御回路からのデータが、電圧制御回路
に一定時間入力されないとき充電体からの電源電圧を制
御するようにしている。スイッチ手段より内部回路は２
次電池への電圧供給と別に、充電体より電圧を供給でき
るため、２次電池を充電しながら、被充電体を使用でき
る。(Function) In the present invention, when the charging body and the charged body are connected and the charged body is charged, the power supply voltage is supplied from the charging body to the secondary battery of the charged body, and the detection circuit of the charged body is connected to the secondary battery. To detect the charging capacity of a battery, keep the charging current constant, and efficiently charge the battery. Also,
The voltage control circuit of the charging body controls the power supply voltage from the charging body when data from the control circuit is not input to the voltage control circuit for a certain period of time even if the detection circuit cannot detect the charging capacity. The internal circuit is 2 from the switch means.
Since voltage can be supplied from the charging body separately from voltage supply to the secondary battery, the charged body can be used while charging the secondary battery.
充電体と被充電体が切り離された時は、スイッチ手段よ
り２次電池から電圧が供給され被充電体を使用できるよ
うにしている。When the charging object and the object to be charged are separated, voltage is supplied from the secondary battery by the switch means so that the object to be charged can be used.
（実施例）
以下、図面に基づいて本発明の一実施例を詳細に説明す
る。(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.
第１図は本発明の一実施例に係る充電装置であり、充電
体１１と被充電体１２とは電圧供給インターフェース３
、電圧制御データインターフェース１３によって接続さ
れる。FIG. 1 shows a charging device according to an embodiment of the present invention, in which a charging body 11 and a charged body 12 are connected to a voltage supply interface 3.
, are connected by a voltage control data interface 13.
充電体１１は電源としての定電圧回路１０と電圧制御回
路１４によって構成され、定電圧回路１０は電圧制御回
路１４によって供給電圧が制御され、電圧供給インター
フェイス３を介して被充電体１２に電圧を供給する。電
圧制御回路１４は被充電体１２の制御回路１５から送ら
れるデータを受取り定電圧回路１０の供給電圧を制御す
る。The charging body 11 is constituted by a constant voltage circuit 10 as a power source and a voltage control circuit 14. The supply voltage of the constant voltage circuit 10 is controlled by the voltage control circuit 14, and the voltage is supplied to the charged body 12 via the voltage supply interface 3. supply The voltage control circuit 14 receives data sent from the control circuit 15 of the charged object 12 and controls the voltage supplied to the constant voltage circuit 10.
一方、被充電体１２では、充電回路２２に、２次電池２
、検出回路１８、電流制限抵抗１７、スイッチ手段２３
および制御回路１５を設け、充電回路２２への電圧供給
ライン１９に逆流防止ダイオード１６と、内部回路９へ
の電圧供給ライン２１に逆流防止ダイオード１９と被充
電体の電源スィッチ８とを設けることにより構成される
。On the other hand, in the object to be charged 12, the charging circuit 22 has a secondary battery 2
, detection circuit 18, current limiting resistor 17, switch means 23
By providing a control circuit 15, a backflow prevention diode 16 in the voltage supply line 19 to the charging circuit 22, a backflow prevention diode 19 in the voltage supply line 21 to the internal circuit 9, and the power switch 8 of the object to be charged. configured.
検出回路１８は２次電池６の充電容量を検出し、検出結
果を制御回路１５に送る。The detection circuit 18 detects the charging capacity of the secondary battery 6 and sends the detection result to the control circuit 15.
２次電池６は充電体１１と接続されている時には電圧供
給ライン１９から送られる電圧が供給され、充電体１１
と切り離されている時にはスイッチ手段２３より内部回
路９に電圧を供給する。スイッチ手段２３は制御回路１
５によってオン、オフされ、充電体１１と被充電体１２
が接続されている時はオフとされ、充電体１１と被充電
体１２が切り離されている時はオンとされる。When the secondary battery 6 is connected to the charging body 11, the voltage sent from the voltage supply line 19 is supplied, and the charging body 11
When the internal circuit 9 is disconnected from the internal circuit 9, the switching means 23 supplies voltage to the internal circuit 9. The switch means 23 is the control circuit 1
5, the charging body 11 and the charged body 12
It is turned off when the charging body 11 and the charged body 12 are connected, and turned on when the charging body 11 and the charged body 12 are disconnected.
制御回路１５は、スイッチ手段２３を制御し、また、検
出回路１８から送られる電圧指示値に応じた電圧制御デ
ータを電圧制御データインターフェイス１３を介して充
電体１１の電圧制御回路１４に送出する。The control circuit 15 controls the switch means 23 and also sends voltage control data according to the voltage instruction value sent from the detection circuit 18 to the voltage control circuit 14 of the charging body 11 via the voltage control data interface 13.
内部回路９は充電体１１と接続されている時は充電体１
１から電源電圧を供給される。被充電体１２が充電体１
１と切り離されているときは、内部回路は２次電池６か
ら電源電圧を供給されて被充電体１２を作動させる。When the internal circuit 9 is connected to the charging body 11, the charging body 1
Power supply voltage is supplied from 1. Charged object 12 is charged object 1
1, the internal circuit is supplied with power supply voltage from the secondary battery 6 to operate the charged object 12.
次に動作について説明する。Next, the operation will be explained.
被充電体１２と充電体１１を接続して充電を行う場合、
まず被充電体１２の制御回路１５によってスイッチ手段
２３をオフにし、２次電池６から内部回路９への電源電
圧の供給を止める。充電体１１の定電圧回路１０から充
電を行うための電圧が供給され、電圧供給インターフェ
ース３を介して被充電体１２に供給され、充電回路２２
内の２次電池６への電圧供給ライン１９と、内部回路９
への電圧供給ライン２１の両方に供給される。When charging by connecting the object to be charged 12 and the charging object 11,
First, the control circuit 15 of the object to be charged 12 turns off the switch means 23, and the supply of power supply voltage from the secondary battery 6 to the internal circuit 9 is stopped. A voltage for charging is supplied from the constant voltage circuit 10 of the charging body 11 and is supplied to the charged body 12 via the voltage supply interface 3.
Voltage supply line 19 to secondary battery 6 inside and internal circuit 9
Both voltage supply lines 21 are supplied to the terminal.
２次電池６への電圧供給ライン１９に入る電圧は、逆流
防止ダイオード１６と電流制限抵抗１７と検出回路１８
を介して２次電池６を充電する。The voltage that enters the voltage supply line 19 to the secondary battery 6 is passed through a backflow prevention diode 16, a current limiting resistor 17, and a detection circuit 18.
The secondary battery 6 is charged via.
この時、内部回路９への電圧供給ライン２１に入る電圧
は、逆流防止ダイオード２０およびスイッチ８を介し、
内部回路９に供給される。そのため、内部回路９は２次
電池６でなく充電体１１によって電源電圧を供給されて
２次電池６を充電しながら被充電体１２を作動させるこ
とができる。At this time, the voltage entering the voltage supply line 21 to the internal circuit 9 passes through the reverse current prevention diode 20 and the switch 8,
The signal is supplied to the internal circuit 9. Therefore, the internal circuit 9 is supplied with power supply voltage not by the secondary battery 6 but by the charging body 11, and can operate the charged body 12 while charging the secondary battery 6.
検出回路１８は、２次電池６の充電容量を検出し、電圧
指示値を制御回路１５に出力する。制御回路１５は、電
圧指示値を電圧制御データとして、一定の時間ごとに電
圧制御データインターフェース１３を介して、充電体１
１の電圧制御回路１４に送出する。電圧制御回路１４は
、送られてくる電圧制御データより定電圧回路１０を制
御し、２次電池６に供給される電流が常に一定となるよ
うにしている。The detection circuit 18 detects the charging capacity of the secondary battery 6 and outputs a voltage instruction value to the control circuit 15. The control circuit 15 uses the voltage instruction value as voltage control data to send data to the charging body 1 via the voltage control data interface 13 at regular intervals.
The signal is sent to the voltage control circuit 14 of No. 1. The voltage control circuit 14 controls the constant voltage circuit 10 based on the voltage control data sent so that the current supplied to the secondary battery 6 is always constant.
第２図は充電時間による２次電池６の電圧特性を示して
おり、縦軸は２次電池６の電圧値を横軸は充電時間を示
す。第２図の時間Ａのように充電時間に対する電圧の変
化量が大きい時は、検出回路１８で２次電池６の充電容
量を検出できるが、第２図の時間Ｂのように充電時間に
対する電圧の変化量が小さい時は、検出回路１８で２次
電池６の充電容量が検出できなくなり２次電池への過充
電をおこしてしまう。そこで、一定時間以上、電圧指示
値が入力されない時は、過充電防止のために、電圧制御
回路１４は定電圧回路１０が最低電源電圧を出力するよ
うに制御する。FIG. 2 shows the voltage characteristics of the secondary battery 6 depending on the charging time, where the vertical axis shows the voltage value of the secondary battery 6 and the horizontal axis shows the charging time. When the amount of change in voltage with respect to the charging time is large as at time A in FIG. 2, the detection circuit 18 can detect the charging capacity of the secondary battery 6, but as at time B in FIG. When the amount of change in is small, the detection circuit 18 cannot detect the charging capacity of the secondary battery 6, resulting in overcharging of the secondary battery. Therefore, when no voltage command value is input for a certain period of time or more, the voltage control circuit 14 controls the constant voltage circuit 10 to output the lowest power supply voltage to prevent overcharging.
次に充電体１１と被充電体１２を切り離した場合、被充
電体１２の制御回路１５によってスイッチ手段２３がオ
ンとされ、２次電池６から内部回路９へ電圧が供給され
被充電体１２が作動する。Next, when the charging body 11 and the charged body 12 are separated, the switch means 23 is turned on by the control circuit 15 of the charged body 12, voltage is supplied from the secondary battery 6 to the internal circuit 9, and the charged body 12 is turned on. Operate.
スイッチ８はたとえば被充電体１２の電源投入スイッチ
である。The switch 8 is, for example, a power-on switch for the object 12 to be charged.
かくして、充電体１１と被充電体１２が接続されている
時は、２次電池６への電圧供給ライン１９と内部回路９
への電圧供給ライン２１が別々に設けられているので、
２次電池６を充電しながら被充電体１２を作動させるこ
とができる。Thus, when the charging body 11 and the charged body 12 are connected, the voltage supply line 19 to the secondary battery 6 and the internal circuit 9
Since the voltage supply line 21 to the
The object to be charged 12 can be operated while the secondary battery 6 is being charged.
また、充電体１１と被充電体１２が切り離された時は、
被充電体１２の内部回路９は２次電池６から電圧を供給
され被充電体１２を作動させることができる。Moreover, when the charging body 11 and the charged body 12 are separated,
The internal circuit 9 of the object 12 to be charged can be supplied with voltage from the secondary battery 6 to operate the object 12 to be charged.
さらに、検出回路１８により充電容量を検出し、充電電
流が一定となるように制御しているため充電が効率よく
でき、充電時間が従来より短縮される。また、充電容量
の対時間変化量が小さくなり、検出回路１８で２次電池
６の充電容量が検出できない時は、電圧制御回路１４に
より定電圧回路１０が最低電圧を出力するように制御し
ているため、２次電池６の過充電も防ぐことができ２次
電池６の性能を劣化させることがない。Furthermore, since the charging capacity is detected by the detection circuit 18 and the charging current is controlled to be constant, charging can be performed efficiently and the charging time can be shortened compared to the conventional case. Furthermore, when the amount of change in charge capacity over time becomes small and the detection circuit 18 cannot detect the charge capacity of the secondary battery 6, the voltage control circuit 14 controls the constant voltage circuit 10 to output the lowest voltage. Therefore, overcharging of the secondary battery 6 can be prevented and the performance of the secondary battery 6 will not be deteriorated.
［発明の効果］
以上説明したように本発明によれば、充電中でも２次電
池の電位にかかわらず被充電体を使用でき、また２次電
池の性能を劣化させることなく短時間で効率よく充電で
きる充電装置を提供できる。[Effects of the Invention] As explained above, according to the present invention, the object to be charged can be used even during charging regardless of the potential of the secondary battery, and the secondary battery can be charged efficiently in a short time without deteriorating its performance. We can provide a charging device that can.
第１図は本発明の一実施例を示す充電装置の回路図、第
２図は充電時間による２次電池の電圧特性を示す図、第
３図は従来の充電回路の回路図である。
６・・・・・・・・・２次電池
９・・・・・・・・・内部回路
１０・・・・・・・・・定電圧回路
１１・・・・・・・・・充電体
１２・・・・・・・・・被充電体
１４・・・・・・・・・電圧制御回路
１５・・・・・・・・・制御回路
１８・・・・・・・・・検出回路
２２・・・・・・・・・充電回路
２３・・・・・・・・・スイッチ手段
出願人 株式会社 東芝FIG. 1 is a circuit diagram of a charging device showing an embodiment of the present invention, FIG. 2 is a diagram showing voltage characteristics of a secondary battery depending on charging time, and FIG. 3 is a circuit diagram of a conventional charging circuit. 6...... Secondary battery 9... Internal circuit 10... Constant voltage circuit 11... Charge body 12...Charged object 14...Voltage control circuit 15...Control circuit 18...Detection circuit 22...Charging circuit 23...Switch means Applicant: Toshiba Corporation
Claims (2)
電体の制御回路から送られる充電容量のデータに応じて
電源供給を制御する電圧制御回路とからなり、 前記被充電体は、充電回路に 前記充電体から電源が供給されて充電される２次電池と
、 前記２次電池の充電容量を検出する検出回路と、前記２
次電池への充電と前記２次電池から被充電体内部回路へ
の電源供給の切換えを行うスイッチ手段と、 前記検出回路と前記スイッチ手段の動作制御を行う制御
回路とを設け、 また被充電体内部回路と、 前記充電体からの電源供給ラインを前記充電回路と前記
内部回路別々に備え、 前記被充電体に前記充電体を接続した時は、前記スイッ
チ手段により前記２次電池から前記内部回路への電源供
給を止め、 前記被充電体から前記充電体を切り離した時は前記スイ
ッチ手段により前記２次電池から前記内部回路へ電源供
給することを特徴とする充電装置。(1) In a charging device that charges an object to be charged with a charging object, the charging object has a constant voltage circuit that supplies power to the object to be charged, and charge capacity data sent from a control circuit of the object to be charged. and a voltage control circuit that controls power supply accordingly, the object to be charged includes a secondary battery that is charged by supplying power from the charging object to a charging circuit, and detects a charging capacity of the secondary battery. a detection circuit;
A switch means for charging a secondary battery and switching power supply from the secondary battery to an internal circuit of the object to be charged, and a control circuit for controlling the operation of the detection circuit and the switch means, and the object to be charged An internal circuit and a power supply line from the charging body are provided separately from the charging circuit and the internal circuit, and when the charging body is connected to the body to be charged, the switch means disconnects the internal circuit from the secondary battery. A charging device, characterized in that when the charging body is disconnected from the body to be charged, power is supplied from the secondary battery to the internal circuit by the switch means.
路から電圧制御データが一定時間以上入力されない時、
自らリセットし最低電源電圧を出力することを特徴とす
る請求項１記載の充電装置。(2) When the voltage control circuit does not receive voltage control data from the control circuit of the object to be charged for a certain period of time or more,
The charging device according to claim 1, wherein the charging device resets itself and outputs the lowest power supply voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01072653A JP3128221B2 (en) | 1989-03-25 | 1989-03-25 | Charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01072653A JP3128221B2 (en) | 1989-03-25 | 1989-03-25 | Charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02254935A true JPH02254935A (en) | 1990-10-15 |
| JP3128221B2 JP3128221B2 (en) | 2001-01-29 |
Family
ID=13495557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01072653A Expired - Fee Related JP3128221B2 (en) | 1989-03-25 | 1989-03-25 | Charging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3128221B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004140926A (en) * | 2002-10-17 | 2004-05-13 | Seiko Epson Corp | Charging control apparatus |
| WO2010082263A1 (en) * | 2009-01-13 | 2010-07-22 | パナソニック株式会社 | Charge control circuit |
| JP2017143704A (en) * | 2016-02-12 | 2017-08-17 | セイコーエプソン株式会社 | Control device, power reception device, electronic apparatus, power transmission system, and power supply method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5066909B2 (en) * | 2006-12-08 | 2012-11-07 | 日本電気株式会社 | Electronic device, charger, charging system, and charging method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61258631A (en) * | 1985-05-07 | 1986-11-17 | 富士通株式会社 | Charge control system for electronic equipment |
-
1989
- 1989-03-25 JP JP01072653A patent/JP3128221B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61258631A (en) * | 1985-05-07 | 1986-11-17 | 富士通株式会社 | Charge control system for electronic equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004140926A (en) * | 2002-10-17 | 2004-05-13 | Seiko Epson Corp | Charging control apparatus |
| WO2010082263A1 (en) * | 2009-01-13 | 2010-07-22 | パナソニック株式会社 | Charge control circuit |
| JP2010166637A (en) * | 2009-01-13 | 2010-07-29 | Panasonic Corp | Charging control circuit |
| JP2017143704A (en) * | 2016-02-12 | 2017-08-17 | セイコーエプソン株式会社 | Control device, power reception device, electronic apparatus, power transmission system, and power supply method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3128221B2 (en) | 2001-01-29 |
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