JP2008220050A - Electronic equipment and charger - Google Patents

Electronic equipment and charger Download PDF

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JP2008220050A
JP2008220050A JP2007054200A JP2007054200A JP2008220050A JP 2008220050 A JP2008220050 A JP 2008220050A JP 2007054200 A JP2007054200 A JP 2007054200A JP 2007054200 A JP2007054200 A JP 2007054200A JP 2008220050 A JP2008220050 A JP 2008220050A
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charging
authentication
voltage
output
power supply
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Taketo Nishiyama
建人 西山
Shinji Shichiyama
伸二 七山
Takaya Muto
貴哉 武藤
Takashi Kawaguchi
隆司 川口
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • 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

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a charging adapter that transmits an authentication signal to the side of electronic equipment mounted with a secondary battery without adding a signal line for authentication to two lines respectively used for a power supply and for a ground, and also, that supplies charging power if the authentication succeeds. <P>SOLUTION: A charger is provided with an electronic equipment detection part 5 for detecting the connection with electronic equipment 1, an AC/DC power supply 4, which converts an AC voltage from a power supply into a DC voltage so as to output it to the electronic equipment 1 via a charging signal line 3 and executes switching between output and output stop of the DC voltage corresponding to a control signal E0 from the outside and switching between a high level and a low level of a voltage level of the DC voltage, and an ID authentication data transmission control part 6 that generates the control signal E0 to the AC/DC power supply 4 on the basis of ID data when the electronic equipment detection part 5 detects the connection of the electronic equipment 1 so as to output the control signal to the AC/DC power supply 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、例えば、携帯電話機のような二次電池により駆動される電子機器と、この電子機器を充電する充電装置に関する。   The present invention relates to an electronic device driven by a secondary battery such as a mobile phone and a charging device for charging the electronic device.

従来、携帯電話機等の電子機器には、二次電池パックを装着した状態で充電アダプタに接続すると、その電子機器内部の充電回路が、二次電池パックへの充電を自動的に開始させるようになっているものがある。このような電子機器では、アダプタのコネクタの形状を規格化することで、不適切な充電アダプタを用いて充電することを予防している。しかし、この方法では、正規のコネクタの形状を模擬すれば、電子機器に充電可能となるという問題がある。   Conventionally, when an electronic device such as a cellular phone is connected to a charging adapter with a secondary battery pack attached, a charging circuit inside the electronic device automatically starts charging the secondary battery pack. There is something that has become. In such an electronic device, charging with an inappropriate charging adapter is prevented by standardizing the shape of the connector of the adapter. However, this method has a problem that the electronic device can be charged if the shape of the regular connector is simulated.

特許文献１には、電子機器に適合しない二次電池パックを検出し、不適切な二次電池パックが装着された場合には、この二次電池パックに対して充電されないように制御する携帯端末装置が開示されている。具体的には、二次電池パックが保持するＩＤ(Identity)情報を抽出する手段を備え、装着されている二次電池パックが適切なものかＩＤ情報に基づいて認証を行う。   Patent Document 1 discloses a portable terminal that detects a secondary battery pack that is not compatible with an electronic device, and controls the secondary battery pack not to be charged when an inappropriate secondary battery pack is mounted. An apparatus is disclosed. Specifically, a means for extracting ID (Identity) information held by the secondary battery pack is provided, and authentication is performed based on the ID information as to whether the attached secondary battery pack is appropriate.

特開２００５―３４１７７５号公報JP 2005-341775 A

また、特許文献２には、非正規品の充電器によって充電されることを防止するため、電池パック内のＣＰＵと充電器を信号ラインで接続し、充電器と電池パックが信号ラインを介して認証を行うことにより充電を制御する充電制御方法が開示されている。電池パック内のＣＰＵと充電器が信号ラインを介して認証を行うことにより、非正規品の充電器により充電処理が行われることを防止し、電池の信頼性を確保している。   Further, in Patent Document 2, in order to prevent charging by an unauthorized charger, the CPU and the charger in the battery pack are connected by a signal line, and the charger and the battery pack are connected via the signal line. A charging control method for controlling charging by performing authentication is disclosed. The CPU and the charger in the battery pack authenticate via the signal line, thereby preventing the charging process from being performed by the non-genuine charger and ensuring the reliability of the battery.

特開２００６―１６４５４７号公報JP 2006-164547 A

ところで、特許文献１に記載の携帯端末装置は、非正規の電池パックへの充電を禁止するものであり、非正規の充電アダプタによる充電を防止するものではない。また、特許文献２に記載の充電制御方法は、非正規の充電器による充電を予防するものであるが、充電器にＣＰＵや専用の信号線を設ける必要がある。より具体的には、充電器には、電源用（充電用電源ライン）とグランド用の２線が設けられているが、さらに充電器と電池パック間の認証用の信号線を追加しなければならないので、充電器の構成が複雑になるほか、コストが上昇するという問題がある。本発明は上記課題を解決するためになされたものであり、電源用とグランド用の２線に、認証用の信号線を追加することなく、二次電池が装着された電子機器側に認証信号を送信するとともに、認証が成功すれば充電電力を供給する充電アダプタを提供することを目的とする。また、本発明は、充電アダプタから送信された認証信号に基づいて認証を行い、認証が成功した場合に充電アダプタから供給された電力を二次電池に供給するよう充電制御を行う電子機器に関する。   By the way, the portable terminal device described in Patent Document 1 prohibits charging of an unauthorized battery pack, and does not prevent charging by an unauthorized charger adapter. Moreover, although the charge control method described in Patent Document 2 prevents charging by an unauthorized charger, it is necessary to provide a CPU and a dedicated signal line in the charger. More specifically, the charger is provided with two wires for power supply (charging power supply line) and ground. However, if a signal line for authentication between the charger and the battery pack is not added, Therefore, there is a problem that the structure of the charger is complicated and the cost is increased. The present invention has been made in order to solve the above-described problems. An authentication signal is provided on the electronic device side where the secondary battery is mounted without adding an authentication signal line to the power supply and ground lines. It is an object to provide a charging adapter that supplies charging power if authentication is successful. The present invention also relates to an electronic device that performs authentication based on an authentication signal transmitted from a charging adapter and performs charging control so that power supplied from the charging adapter is supplied to a secondary battery when the authentication is successful.

本発明に係る電子機器は、充電装置と接続されたことを検出する充電装置検出部と、充電装置から充電用信号線を介して出力された出力電圧に含まれる、充電装置に対応したＩＤデータに基づいて、充電装置からの充電を許可するか判断するＩＤ認証制御部と、充電装置検出部が充電装置の接続を検出すると、充電装置からの出力電圧をＩＤ認証制御部に供給し、ＩＤ認証制御部が充電装置からの充電を許可すると判断した場合に、出力電圧を二次電池に供給する充電制御部とを設けたものである。   The electronic device according to the present invention includes a charging device detection unit that detects that the charging device is connected, and ID data corresponding to the charging device, which is included in the output voltage output from the charging device via the charging signal line. Based on the ID authentication control unit that determines whether to allow charging from the charging device, and when the charging device detection unit detects the connection of the charging device, the output voltage from the charging device is supplied to the ID authentication control unit, And a charging control unit that supplies an output voltage to the secondary battery when the authentication control unit determines to permit charging from the charging device.

本発明に係る充電装置は、電子機器と接続されたことを検出する電子機器検出部と、電源からの交流電圧を直流電圧に変換して充電用信号線を介して電子機器に出力するとともに、外部からの制御信号に応じて直流電圧の出力と出力停止、または直流電圧の電圧レベルの高低の切り換えを行うＡＣ／ＤＣ電源と、電子機器検出部が電子機器の接続を検出すると、固有のＩＤデータに基づいてＡＣ／ＤＣ電源に対する制御信号を生成するとともに、ＡＣ／ＤＣ電源に出力するＩＤ認証データ送信制御部とを設けたものである。   The charging device according to the present invention detects an electronic device connected to the electronic device, and converts the AC voltage from the power source into a DC voltage and outputs it to the electronic device via the charging signal line. When the electronic device detector detects the connection of the electronic device with the AC / DC power source that outputs and stops the direct current voltage according to the control signal from the outside or switches the voltage level of the direct current voltage, the unique ID An ID authentication data transmission control unit that generates a control signal for the AC / DC power supply based on the data and outputs the control signal to the AC / DC power supply is provided.

本発明に係る電子機器は、充電装置と接続されたことを検出する充電装置検出部と、充電装置から充電用信号線を介して出力された出力電圧に含まれる、充電装置に対応したＩＤデータに基づいて、充電装置からの充電を許可するか判断するＩＤ認証制御部と、充電装置検出部が充電装置の接続を検出すると、充電装置からの出力電圧をＩＤ認証制御部に供給し、ＩＤ認証制御部が充電装置からの充電を許可すると判断した場合に、出力電圧を二次電池に供給する充電制御部とを設けたので、非正規品の充電装置からの充電を防止することができ、電池の信頼性が高まるという効果を奏する。   The electronic device according to the present invention includes a charging device detection unit that detects that the charging device is connected, and ID data corresponding to the charging device, which is included in the output voltage output from the charging device via the charging signal line. Based on the ID authentication control unit that determines whether to allow charging from the charging device, and when the charging device detection unit detects the connection of the charging device, the output voltage from the charging device is supplied to the ID authentication control unit, When the authentication control unit determines to permit charging from the charging device, a charging control unit that supplies the output voltage to the secondary battery is provided, so that charging from an unauthorized charging device can be prevented. The battery reliability is improved.

本発明に係る充電装置は、電子機器と接続されたことを検出する電子機器検出部と、電源からの交流電圧を直流電圧に変換して充電用信号線を介して電子機器に出力するとともに、外部からの制御信号に応じて直流電圧の出力と出力停止、または直流電圧の電圧レベルの高低の切り換えを行うＡＣ／ＤＣ電源と、電子機器検出部が電子機器の接続を検出すると、固有のＩＤデータに基づいてＡＣ／ＤＣ電源に対する制御信号を生成するとともに、ＡＣ／ＤＣ電源に出力するＩＤ認証データ送信制御部とを設けたので、充電装置に電源用とグランド用の２線以外に認証用の信号線を追加する必要がなくなり、充電装置の構成の簡略化、低コスト化を確保できる。   The charging device according to the present invention detects an electronic device connected to the electronic device, and converts the AC voltage from the power source into a DC voltage and outputs it to the electronic device via the charging signal line. When the electronic device detector detects the connection of the electronic device with the AC / DC power source that outputs and stops the direct current voltage according to the control signal from the outside or switches the voltage level of the direct current voltage, the unique ID Since the control signal for the AC / DC power supply is generated based on the data and the ID authentication data transmission control unit for outputting to the AC / DC power supply is provided, the charging device is used for authentication in addition to the power supply and ground lines. Therefore, it is not necessary to add a signal line, and the configuration of the charging device can be simplified and the cost can be reduced.

実施の形態１．
以下、この発明の実施の形態を図に基づいて説明する。図１は携帯電話機と充電アダプタとを接続した状態を説明する説明図である。充電アダプタ２は製品固有のＩＤデータを保有しており、充電開始時に充電アダプタ２よりＩＤデータを充電用電源ライン３に送信し、携帯電話機１がＩＤデータを受信する。受信したＩＤデータと携帯電話機１が記憶するＩＤデータが一致する場合、二次電池への充電が行われる。図２は、本発明に係る電子機器の一例である携帯電話機と充電アダプタの構成を示すブロック図である。図２において、充電アダプタ２は、コンセント１５からの交流電圧を直流定電圧に変換するＡＣ／ＤＣ電源４を備えており、充電に必要な電圧を携帯電話機１に出力する。携帯電話機１では充電制御部７が充電アダプタ２の接続を検出するための充電装置検出部として機能する。充電アダプタ２の接続を検出するために、充電アダプタ２からの出力電圧が利用される。充電アダプタ２が接続されたとき、携帯電話機１の充電制御部７が、充電アダプタ２からの出力電圧を検出する。充電制御部７は、充電アダプタ２からの出力電圧を検出すると、制御信号Ｃ０をＩＤ認証制御ＳＷ８に出力してオン状態とする。ＩＤ認証制御ＳＷ８がオン状態になると、ＩＤ認証制御部９が充電用電源ライン３に接続される。 Embodiment 1 FIG.
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram illustrating a state in which a mobile phone and a charging adapter are connected. The charging adapter 2 has product-specific ID data, and when charging starts, the charging adapter 2 transmits ID data to the charging power line 3 and the mobile phone 1 receives the ID data. When the received ID data matches the ID data stored in the mobile phone 1, the secondary battery is charged. FIG. 2 is a block diagram showing a configuration of a mobile phone and a charging adapter which are examples of the electronic apparatus according to the present invention. In FIG. 2, the charging adapter 2 includes an AC / DC power source 4 that converts an AC voltage from the outlet 15 into a DC constant voltage, and outputs a voltage necessary for charging to the mobile phone 1. In the mobile phone 1, the charging control unit 7 functions as a charging device detection unit for detecting the connection of the charging adapter 2. In order to detect the connection of the charging adapter 2, the output voltage from the charging adapter 2 is used. When the charging adapter 2 is connected, the charging control unit 7 of the mobile phone 1 detects the output voltage from the charging adapter 2. When the charging control unit 7 detects the output voltage from the charging adapter 2, the charging control unit 7 outputs the control signal C0 to the ID authentication control SW8 to turn it on. When the ID authentication control SW 8 is turned on, the ID authentication control unit 9 is connected to the charging power line 3.

充電アダプタ２は、ＩＤデータ送信開始のタイミングを充電用電源ライン３への負荷電流を利用して検出する。具体的には、充電アダプタ２から定電圧が出力されることで、携帯電話機１のプルダウン抵抗１０に定電流Ｉ０が流れる。これにより充電用電源ライン３に定電流Ｉ０とほぼ同程度の電流が流れる。充電アダプタ２の電流検出部５は、充電用電源ライン３を流れる電流を検出すると、電流検出信号Ｉ１をＩＤ認証データの送信を制御するＩＤ認証データ送信制御部であるＩＤ認証データ送信用モジュール６に送信する。ＩＤ認証データ送信用モジュール６は、電流検出信号Ｉ１を受信すると、ＡＣ／ＤＣ電源４のオン／オフを制御するイネーブル信号Ｅ０を出力する。このイネーブル信号Ｅ０に従ってＡＣ／ＤＣ電源４が出力する電圧波形がＩＤデータを意味する。なお、携帯電話機１の抵抗１０による定電流Ｉ０を充電電流とは異なる値に設定することで、ＩＤ認証開始時(ＩＤ認証制御用ＳＷ８がオン状態)のみ、充電アダプタ２のＩＤ認証データ送信用モジュール６はＩＤデータを出力できる。   The charging adapter 2 detects the ID data transmission start timing using the load current to the charging power supply line 3. Specifically, when a constant voltage is output from the charging adapter 2, a constant current I 0 flows through the pull-down resistor 10 of the mobile phone 1. As a result, a current substantially equal to the constant current I 0 flows through the charging power supply line 3. When the current detection unit 5 of the charging adapter 2 detects a current flowing through the charging power supply line 3, an ID authentication data transmission module 6 that is an ID authentication data transmission control unit that controls transmission of ID authentication data using the current detection signal I 1. Send to. When receiving the current detection signal I1, the ID authentication data transmission module 6 outputs an enable signal E0 for controlling on / off of the AC / DC power supply 4. The voltage waveform output from the AC / DC power supply 4 in accordance with the enable signal E0 means ID data. Note that, by setting the constant current I0 due to the resistor 10 of the mobile phone 1 to a value different from the charging current, ID authentication data transmission of the charging adapter 2 is performed only at the start of ID authentication (ID authentication control SW 8 is on). Module 6 can output ID data.

充電アダプタ２がＩＤデータを携帯電話機１へ送信する方法について説明する。まず、ＩＤ認証データ送信用モジュール６は認証用のＩＤデータに応じたイネーブル信号Ｅ０を生成し、ＡＣ／ＤＣ電源４に出力する。このＩＤデータ(High/Lowによるシリアルデータ)に応じたイネーブル信号Ｅ０に基づいて、ＡＣ／ＤＣ電源４はオン／オフを切り換えながら電圧を充電用電源ライン３に出力する。このように受信アダプタ２から出力された電圧波形は、ハイ／ローあるいはオン／オフの配列で表されるＩＤデータに応じた固有の波形を有しているので、受信側でもとのＩＤデータとの比較を容易に実現できる。携帯電話機１は、充電用電源ライン３を介して伝達された電圧波形を受信すると、ＩＤ認証制御部９は、この電圧波形から再現されたＩＤデータと予め携帯電話機１が保持するＩＤデータ（受信側保持データと称する）とを用いて認証を行う。認証の結果、受信した電圧波形から再現されたＩＤデータと受信側保持データが一致した場合、ＩＤ認証制御部９は、認証成功とみなして、充電制御部７に充電開始信号Ｃ１を出力する。充電制御部７は充電開始信号Ｃ１を受け取ると、充電制御信号Ｃ２を充電制御ＳＷ１１に出力し、充電制御ＳＷ１１をオン状態とする。充電制御ＳＷ１１がオン状態になると、二次電池１２に対して充電が開始される。   A method in which the charging adapter 2 transmits ID data to the mobile phone 1 will be described. First, the ID authentication data transmission module 6 generates an enable signal E0 corresponding to the authentication ID data and outputs it to the AC / DC power supply 4. Based on the enable signal E0 corresponding to the ID data (high / low serial data), the AC / DC power supply 4 outputs a voltage to the charging power supply line 3 while switching on / off. Thus, the voltage waveform output from the reception adapter 2 has a unique waveform corresponding to the ID data represented by a high / low or on / off arrangement, Can be easily realized. When the cellular phone 1 receives the voltage waveform transmitted via the charging power supply line 3, the ID authentication control unit 9 receives the ID data reproduced from the voltage waveform and the ID data (reception received by the cellular phone 1 in advance). Authentication is performed using the data stored on the side holding data). As a result of authentication, when the ID data reproduced from the received voltage waveform matches the received data held on the receiving side, the ID authentication control unit 9 regards the authentication as successful and outputs a charge start signal C1 to the charge control unit 7. When the charging control unit 7 receives the charging start signal C1, the charging control unit 7 outputs the charging control signal C2 to the charging control SW11 to turn on the charging control SW11. When the charging control SW11 is turned on, charging of the secondary battery 12 is started.

図３は、本発明に係る充電アダプタが認証用に電源ラインに送出する出力電圧の波形を示す説明図である。ＩＤ認証時には充電アダプタ２よりＩＤデータに応じた波形を持つ出力電圧を出力し、充電時には充電電圧を出力する。この充電アダプタ２と携帯電話機１間の通信は非同期式シリアル通信で行われる。なお、ＩＤ認証制御部９の電源は二次電池１２であり、ＩＤ認証時に充電アダプタ２からの送信データがロー（Low 出力電圧＝0V）時でも動作可能であり、ＩＤデータの受信動作に支障をきたさない。   FIG. 3 is an explanatory diagram showing a waveform of an output voltage that the charging adapter according to the present invention sends to the power supply line for authentication. An output voltage having a waveform corresponding to the ID data is output from the charging adapter 2 during ID authentication, and a charging voltage is output during charging. Communication between the charging adapter 2 and the mobile phone 1 is performed by asynchronous serial communication. The power source of the ID authentication control unit 9 is a secondary battery 12 and can operate even when transmission data from the charging adapter 2 is low (Low output voltage = 0V) during ID authentication, which hinders the reception operation of ID data. I will not give you.

図４は、本発明に係る電子機器と充電アダプタにより実行される認証方法を示すフローチャートである。図４のフローチャートに示される処理は、携帯電話機１に充電アダプタ２が接続されたときに実行される。図４のステップＳ１において、携帯電話機１の充電制御部７が充電アダプタ２からの出力電圧を検出すると（S1でYes）、ステップＳ２でＩＤ認証用ＳＷ８をオン状態にし、ステップ３にて充電アダプタ２からのＩＤデータに応じた出力電圧の送信を待つ。一方、充電アダプタ２は、ステップＳ４において、電流検出部５がＩＤ認証開始用の電流Ｉ０を検出すると（S4でYes）、ステップＳ５で充電アダプタ２から携帯電話機１へＩＤデータに応じた波形の電圧を充電用電源ライン３に出力する。この充電アダプタ２からの出力電圧から再現されたもとのＩＤデータは、携帯電話機１のＩＤ認証制御部９において携帯電話機１が保持しているＩＤと照合され、正規の充電アダプタ２であるかが判定される。この判定結果が否の場合（ステップS6でNo）、つまり、非正規の充電アダプタが携帯電話機１に接続されていると判断した場合、ステップＳ７にてＩＤ認証制御ＳＷ８をオフ状態にした後、充電を行わず処理を終了する。一方、判定結果が肯定の場合（ステップS6でYes）、ステップＳ８にてＩＤ認証制御用ＳＷ８をＯＦＦ状態にした後、ステップＳ９で充電制御ＳＷ１１をオン状態とし、ステップＳ１０で二次電池１２に充電を開始する。この二次電池１２への充電を完了するとき、ステップＳ１１で充電制御用ＳＷ１１をオフ状態にして一連の処理を終了させる。   FIG. 4 is a flowchart showing an authentication method executed by the electronic device and the charging adapter according to the present invention. The process shown in the flowchart of FIG. 4 is executed when the charging adapter 2 is connected to the mobile phone 1. When the charging control unit 7 of the cellular phone 1 detects the output voltage from the charging adapter 2 in Step S1 of FIG. 4 (Yes in S1), the ID authentication SW 8 is turned on in Step S2, and the charging adapter is set in Step 3. 2 waits for transmission of the output voltage corresponding to the ID data from 2. On the other hand, in step S4, when the current detection unit 5 detects the current I0 for starting ID authentication (Yes in S4), the charging adapter 2 sends a waveform corresponding to the ID data from the charging adapter 2 to the mobile phone 1 in step S5. The voltage is output to the charging power line 3. The original ID data reproduced from the output voltage from the charging adapter 2 is checked with the ID held by the mobile phone 1 in the ID authentication control unit 9 of the mobile phone 1 to determine whether it is a legitimate charging adapter 2. Is done. If this determination result is negative (No in step S6), that is, if it is determined that an unauthorized charging adapter is connected to the mobile phone 1, after the ID authentication control SW8 is turned off in step S7, The process ends without charging. On the other hand, if the determination result is affirmative (Yes in step S6), the ID authentication control SW 8 is turned off in step S8, the charge control SW 11 is turned on in step S9, and the secondary battery 12 is turned on in step S10. Start charging. When the charging of the secondary battery 12 is completed, the charging control SW 11 is turned off in step S11, and the series of processes is terminated.

上記説明のように、本発明に係る電子機器は、ＩＤデータに応じた波形の電圧を充電用電源ラインを介して出力する充電アダプタからの出力電圧に基づいて認証を行い、認証が成功した場合に充電アダプタから供給された電力を二次電池に供給するよう充電制御を行う。また、本発明に係る充電アダプタは電源用とグランド用の２線を備え、二次電池が装着された電子機器側に認証信号である出力電圧を充電用電源ラインを介して送信するとともに、認証が成功すれば充電電力を供給する。したがって、非正規品の充電器による充電を防止することができるので、携帯電話機に装着される電池の信頼性を確保できる。また、充電アダプタに電源用（充電用電源ライン）とグランド用の２線以外に認証用の信号線を追加する必要がないので、充電アダプタの構成の複雑化、コスト上昇を防止することができるという効果がある。   As described above, the electronic device according to the present invention performs authentication based on the output voltage from the charging adapter that outputs the voltage of the waveform corresponding to the ID data through the charging power supply line, and the authentication is successful. The charging control is performed so that the power supplied from the charging adapter is supplied to the secondary battery. In addition, the charging adapter according to the present invention includes two wires for power supply and ground, and transmits an output voltage, which is an authentication signal, to the electronic device side on which the secondary battery is mounted via the power supply line for charging. If successful, supply charging power. Therefore, since charging with an unauthorized charger can be prevented, the reliability of the battery mounted on the mobile phone can be ensured. Further, since it is not necessary to add an authentication signal line to the charging adapter in addition to the power supply (charging power line) and the ground line, it is possible to prevent the configuration of the charging adapter from being complicated and the cost from being increased. There is an effect.

実施の形態２．
図５は、本発明の実施の形態２に係る充電アダプタが認証用に電源ラインに送出する出力電圧の波形を示す説明図である。以下、この発明の実施の形態２について説明する。携帯電話機１の二次電池１２の電圧が最低駆動電圧を下回っている場合、実施形態１ではＩＤ認証制御部９が動作しないため充電を開始できないという問題があった。そこで、実施の形態２に係る充電アダプタは、ＩＤ認証制御部９の電源を充電アダプタ２からの充電電圧として、ＩＤ認証制御部９を動作させるために、通信用の電圧は、携帯電話機１の最低駆動電圧以上でハイとロー（High/Low）を切り換えることにより、ＩＤ認証制御部９を動作させることとした。 Embodiment 2. FIG.
FIG. 5 is an explanatory diagram showing the waveform of the output voltage that the charging adapter according to Embodiment 2 of the present invention sends to the power supply line for authentication. The second embodiment of the present invention will be described below. When the voltage of the secondary battery 12 of the mobile phone 1 is lower than the minimum driving voltage, the first embodiment has a problem that the ID authentication control unit 9 does not operate and charging cannot be started. Therefore, the charging adapter according to the second embodiment uses the power supply of the ID authentication control unit 9 as the charging voltage from the charging adapter 2 to operate the ID authentication control unit 9. The ID authentication control unit 9 is operated by switching between high and low (High / Low) above the minimum drive voltage.

実施の形態３．
図６は、本発明の実施の形態３に係る電子機器の構成を示すブロック図である。以下、この発明の実施の形態３を図６に基づいて説明する。図６に示す携帯電話機１は、通信手段１４を備え、例えば、基地局経由で充電を許可する充電アダプタのＩＤデータの新規登録や修正などの更新を行うものである。この通信手段１４を備えることにより、携帯電話機１は、ＩＤ認証時のＩＤデータに関して、携帯電話機１が保有している照合用のＩＤをメモリ１３に保管しておき、通信手段１４を通して基地局と通信し、メモリ１３のデータを受信したデータで更新することによって新規に発売される充電アダプタへの対応や、不具合が生じた充電アダプタを非対応に変更させて充電異常や端末の故障を防ぐことができる。なお図６において図１と同一の符号は同一又は相当部分を示すので説明は省略する。 Embodiment 3 FIG.
FIG. 6 is a block diagram showing a configuration of an electronic device according to Embodiment 3 of the present invention. The third embodiment of the present invention will be described below with reference to FIG. The mobile phone 1 shown in FIG. 6 includes a communication unit 14 and updates, for example, new registration or correction of ID data of a charging adapter that permits charging via a base station. By providing this communication means 14, the mobile phone 1 stores the ID for collation possessed by the mobile phone 1 in the memory 13 with respect to the ID data at the time of ID authentication, and communicates with the base station through the communication means 14. Communicating and updating the data in the memory 13 with the received data to cope with newly-released charging adapters and to change the charging adapters that have malfunctioned to non-compliant to prevent charging abnormalities and terminal failures Can do. In FIG. 6, the same reference numerals as those in FIG.

携帯電話機と充電アダプタとを接続した状態を説明する説明図である。It is explanatory drawing explaining the state which connected the mobile telephone and the charge adapter. 本発明に係る電子機器の一例である携帯電話機と充電アダプタの構成を示すブロック図である。It is a block diagram which shows the structure of the mobile telephone which is an example of the electronic device which concerns on this invention, and a charging adapter. 本発明に係る充電アダプタが認証用に電源ラインに送出する出力電圧の波形を示す説明図である。It is explanatory drawing which shows the waveform of the output voltage which the charging adapter which concerns on this invention sends out to a power supply line for authentication. 本発明に係る電子機器と充電アダプタにより実行される認証方法を示すフローチャートである。It is a flowchart which shows the authentication method performed with the electronic device and charging adapter which concern on this invention. 本発明の実施の形態２に係る充電アダプタが認証用に電源ラインに送出する出力電圧の波形を示す説明図である。It is explanatory drawing which shows the waveform of the output voltage which the charging adapter which concerns on Embodiment 2 of this invention sends out to a power supply line for authentication. 本発明の実施の形態３に係る電子機器の構成を示すブロック図である。It is a block diagram which shows the structure of the electronic device which concerns on Embodiment 3 of this invention.

符号の説明Explanation of symbols

１ 携帯電話機、２ アダプタ、３ 充電用電源ライン、４ ＡＣ／ＤＣ電源、
５ 電流検出部、６ ＩＤ認証データ送信用モジュール、７ 充電制御部、
８ ＩＤ認証制御用ＳＷ、９ ＩＤ認証制御部、１０ プルダウン抵抗、
１１ 充電制御用ＳＷ、１２ 二次電池、１３ メモリ、１４ 通信手段、
１５ コンセント 1 mobile phone, 2 adapter, 3 charging power line, 4 AC / DC power supply,
5 current detection unit, 6 ID authentication data transmission module, 7 charge control unit,
8 ID authentication control SW, 9 ID authentication control unit, 10 pull-down resistor,
11 SW for charge control, 12 Secondary battery, 13 Memory, 14 Communication means,
15 outlet

Claims (3)

充電装置と接続されたことを検出する充電装置検出部と、
前記充電装置から充電用信号線を介して出力された出力電圧に含まれる、前記充電装置に対応したＩＤデータに基づいて、前記充電装置からの充電を許可するか判断するＩＤ認証制御部と、
前記充電装置検出部が前記充電装置の接続を検出すると、前記充電装置からの前記出力電圧を前記ＩＤ認証制御部に供給し、前記ＩＤ認証制御部が前記充電装置からの充電を許可すると判断した場合に、前記出力電圧を二次電池に供給する充電制御部とを設けたことを特徴とする電子機器。 A charging device detection unit for detecting that the charging device is connected;
An ID authentication control unit that determines whether to allow charging from the charging device based on ID data corresponding to the charging device included in an output voltage output from the charging device via a charging signal line;
When the charging device detection unit detects the connection of the charging device, it supplies the output voltage from the charging device to the ID authentication control unit, and determines that the ID authentication control unit permits charging from the charging device. In this case, an electronic apparatus comprising a charge control unit that supplies the output voltage to a secondary battery. 充電装置に対応したＩＤデータを記憶する記憶部と、この記憶部に記憶される前記ＩＤデータを外部から受信する通信部とを設けたことを特徴とする請求項１に記載の電子機器。 The electronic apparatus according to claim 1, further comprising: a storage unit that stores ID data corresponding to the charging device; and a communication unit that receives the ID data stored in the storage unit from the outside. 電子機器と接続されたことを検出する電子機器検出部と、
電源からの交流電圧を直流電圧に変換して充電用信号線を介して前記電子機器に出力するとともに、外部からの制御信号に応じて前記直流電圧の出力と出力停止、または前記直流電圧の電圧レベルの高低の切り換えを行うＡＣ／ＤＣ電源と、
前記電子機器検出部が前記電子機器の接続を検出すると、固有のＩＤデータに基づいて前記ＡＣ／ＤＣ電源に対する前記制御信号を生成するとともに、前記ＡＣ／ＤＣ電源に出力するＩＤ認証データ送信制御部とを設けたことを特徴とする充電装置。 An electronic device detection unit for detecting that the electronic device is connected;
The AC voltage from the power source is converted into a DC voltage and output to the electronic device via the charging signal line, and the output of the DC voltage and output stop according to a control signal from the outside, or the voltage of the DC voltage AC / DC power supply that switches between high and low levels;
When the electronic device detection unit detects the connection of the electronic device, the ID authentication data transmission control unit generates the control signal for the AC / DC power source based on the unique ID data and outputs the control signal to the AC / DC power source And a charging device.
JP2007054200A 2007-03-05 2007-03-05 Electronic equipment and charger Withdrawn JP2008220050A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012055044A (en) * 2010-08-31 2012-03-15 Hitachi Koki Co Ltd Charging system, battery pack, and charging device
JP2013243913A (en) * 2012-05-19 2013-12-05 Tesla Motors Inc Secondary service port for high voltage battery packs
JP2015122845A (en) * 2013-12-20 2015-07-02 トヨタ自動車株式会社 Charging system
JP2015139363A (en) * 2014-08-27 2015-07-30 パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ Electronic equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012055044A (en) * 2010-08-31 2012-03-15 Hitachi Koki Co Ltd Charging system, battery pack, and charging device
JP2013243913A (en) * 2012-05-19 2013-12-05 Tesla Motors Inc Secondary service port for high voltage battery packs
JP2015122845A (en) * 2013-12-20 2015-07-02 トヨタ自動車株式会社 Charging system
JP2015139363A (en) * 2014-08-27 2015-07-30 パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ Electronic equipment

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