JP2007166774A - Mobile electronic apparatus and method of charging its built-in battery - Google Patents

Mobile electronic apparatus and method of charging its built-in battery Download PDF

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JP2007166774A
JP2007166774A JP2005359265A JP2005359265A JP2007166774A JP 2007166774 A JP2007166774 A JP 2007166774A JP 2005359265 A JP2005359265 A JP 2005359265A JP 2005359265 A JP2005359265 A JP 2005359265A JP 2007166774 A JP2007166774 A JP 2007166774A
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Daisuke Mori
大輔 森
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NEC Platforms Ltd
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NEC AccessTechnica Ltd
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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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile electronic apparatus that prevents temperature rise during charging. <P>SOLUTION: The mobile electronic apparatus, when connected to an AC adaptor (Step S001), monitors its own operation state at predetermined time intervals (Step S002). When the apparatus is in the operation state other than the stand-by state (CPUs are both in a SLEEP state), an instructed current value that corresponds to the operation state is read out from a memory (Step S004). Then, the current is changed over to a charging current value set lower than a normal charging current value in the stand-by state (Steps S005-S007). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、携帯型電子機器、その内蔵電池の充電方法及び内蔵電池の充電方法を実現するプログラムに関する。   The present invention relates to a portable electronic device, a charging method for the built-in battery, and a program for realizing the charging method for the built-in battery.

特開平３−１０７３３９号公報に、充電中の装置の安定動作や電池の劣化防止のため、充電中のバッテリへの供給電流を変更する制御部を備えた充電電子機器装置が開示されている。同公報の充電電子機器装置は、充電中における無線部の動作モードが非動作状態である場合には、充電電流に見合う電流を供給し、無線部の動作モードが動作状態である場合には、無線部の動作電流及び充電電流に見合う電流を供給することとしている。   Japanese Patent Application Laid-Open No. 3-107339 discloses a charging electronic device device including a control unit that changes a supply current to a battery being charged for stable operation of the device being charged and prevention of battery deterioration. In the charging electronic device device of the publication, when the operation mode of the wireless unit during charging is in a non-operating state, a current corresponding to the charging current is supplied, and when the operation mode of the wireless unit is in an operating state, The current corresponding to the operating current and charging current of the wireless unit is supplied.

また近年の携帯型電子機器では、機能の充実と処理能力が向上したこともあって、上記のように充電中に動作状態となると発熱量が大きくなることも指摘されており、特開２００１−１４５２７４号公報には、発熱部品近辺に温度センサを配置し、温度センサの測定した温度によって、充電電流を下げ又は充電を停止する携帯機器が開示されている。また、特開２００５−４５６６９号公報には、充電中かつ送信時の発熱を下げるため、間欠充電を行う方式と、充電電流を下げる移動体通信機が開示されている。   Further, in recent portable electronic devices, it has been pointed out that the amount of heat generated increases when the electronic device is in an operating state during charging as described above due to enhancement of functions and processing capability. Japanese Patent No. 145274 discloses a portable device in which a temperature sensor is arranged in the vicinity of a heat generating component, and the charging current is reduced or the charging is stopped depending on the temperature measured by the temperature sensor. Japanese Patent Application Laid-Open No. 2005-45669 discloses a method of performing intermittent charging and a mobile communication device for reducing charging current in order to reduce heat generation during charging and transmission.

特開平３−１０７３３９号公報JP-A-3-107339 特開２００１−１４５２７４号公報JP 2001-145274 A 特開２００５−４５６６９号公報JP 2005-45669 A

とりわけ近年の携帯電話機等の携帯型電子機器では、充電を行いながら、カメラ機能、ＴＶ機能やＪＡＶＡ（登録商標）等のアプリケーションを長時間起動することもまれではなく、これら機能回路自体の発熱に充電回路の発熱も加わり、放熱不足に陥ってしまうという問題点がある。   In particular, in recent portable electronic devices such as mobile phones, it is not uncommon to start applications such as camera functions, TV functions, JAVA (registered trademark) for a long time while charging. There is also a problem that heat is added to the charging circuit, resulting in insufficient heat dissipation.

また、特許文献２の方式では、温度上昇を検知してから充電電流の制御を行うものである上、温度センサを必要とするという問題点がある。   In addition, the method of Patent Document 2 has a problem that a temperature sensor is required in addition to controlling charging current after detecting a temperature rise.

更に、特許文献３の方式では、送信を介さない動作状態における温度上昇を回避できないという問題点がある。例えば、充電アダプタに接続したままカメラ機能やアプリケーションを起動するといった用法が近年の携帯電話機ユーザに見られるが、特許文献３の方式では、これら送信を行わないケースに対応できないものと考えられる。   Furthermore, the method of Patent Document 3 has a problem that it is not possible to avoid an increase in temperature in an operation state that does not involve transmission. For example, the usage of starting a camera function or an application while connected to a charging adapter is seen by recent mobile phone users, but it is considered that the method of Patent Document 3 cannot cope with a case where these transmissions are not performed.

本発明は、上記した事情に鑑みてなされたものであって、その目的とするところは、温度センサを使用せず、充電中の各種動作に起因する温度上昇を未然に防止できる携帯型電子機器を提供することにある。   The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a portable electronic device that does not use a temperature sensor and can prevent an increase in temperature due to various operations during charging. Is to provide.

本発明の第１の視点によれば、スタンバイ状態及び消費電流値の異なる少なくとも２以上の動作状態を有する携帯型電子機器であって、指示電流値に従って内蔵電池に充電電流を供給する充電制御回路と、前記スタンバイ状態を含む自機の動作状態の遷移を監視するとともに、前記スタンバイ状態においては規定充電電流値を、その他の動作状態においては少なくとも前記規定充電電流値より低く定められた電流値を、前記指示電流値として出力する制御部と、を備えること、を特徴とする携帯型電子機器が提供される。   According to a first aspect of the present invention, there is provided a portable electronic device having a standby state and at least two operating states having different current consumption values, wherein the charge control circuit supplies a charging current to the built-in battery according to the indicated current value. And monitoring the transition of the operation state of the own machine including the standby state, and a predetermined charging current value in the standby state, and a current value determined at least lower than the specified charging current value in the other operation states. And a control unit that outputs the indicated current value. A portable electronic device is provided.

本発明によれば、充電中に携帯型電子機器の各種機能を利用した際の発熱を抑えることが可能となる。その理由は、所定値以上の電流を消費する機能の利用中は、スタンバイ状態での規定充電電流値ではなく、より低い充電電流値を適用するよう構成したことにある。   ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to suppress the heat_generation | fever at the time of utilizing the various functions of a portable electronic device during charge. The reason is that a lower charging current value is applied instead of the specified charging current value in the standby state during use of a function that consumes a current of a predetermined value or more.

［第１の実施形態］
続いて、本発明を実施するための最良の形態について図面を参照して詳細に説明する。図１は、本発明の第１の実施形態に係る携帯電話機の構成を表したブロック図である。図１を参照すると、主に無線系を制御するＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６と、内蔵アプリケーション系を制御するＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７との２つのＣＰＵを備えた携帯電話機が示されている。 [First Embodiment]
Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the mobile phone according to the first embodiment of the present invention. Referring to FIG. 1, there is shown a mobile phone including two CPUs, a CPU (Control-CPU) 6 that mainly controls a wireless system and a CPU (Application-CPU) 7 that controls a built-in application system. .

また、本実施形態に係る携帯電話機は、アンテナ１と、無線部２と、充電制御回路３と、商用交流電源と接続されるＡＣアダプタ４と、携帯電話機内蔵の電池５と、充電電流値を格納する充電電流値レジスタ８ａを含んだメモリ８と、ＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７に付随するメモリ９と、チューナーアンテナを介してテレビジョン画像の出力機能を提供するＴＶ部１０と、カメラ機能を提供するカメラ部１１と、液晶ディスプレイ等で構成された表示部１２と、を備えて構成されている。   In addition, the mobile phone according to the present embodiment includes an antenna 1, a radio unit 2, a charging control circuit 3, an AC adapter 4 connected to a commercial AC power source, a battery 5 built in the mobile phone, and a charging current value. A memory 8 including a charging current value register 8a to be stored, a memory 9 associated with a CPU (Application-CPU) 7, a TV unit 10 that provides a television image output function via a tuner antenna, and a camera function A camera unit 11 to be provided and a display unit 12 configured by a liquid crystal display or the like are provided.

無線部２は、アンテナ１を介して送信局との間で通信に関する種々の情報やメールデータを変復調して送受信する。   The wireless unit 2 modulates / demodulates and transmits / receives various information and mail data related to communication with the transmitting station via the antenna 1.

充電制御回路３は、特許文献１〜３のようにＦＥＴ（充電制御用スイッチ）や専用のＩＣを用いて適宜構成され、ＡＣアダプタ４の接続時に、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６からの充電電流値に従って、電池５に充電電流を供給し、電池５がフル充電となった場合に充電を停止する。   The charge control circuit 3 is appropriately configured using a FET (charge control switch) or a dedicated IC as in Patent Documents 1 to 3, and a charging current from a CPU (Control-CPU) 6 when the AC adapter 4 is connected. The charging current is supplied to the battery 5 according to the value, and the charging is stopped when the battery 5 is fully charged.

ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６及びＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７は、それぞれその内部に、ＣＰＵの動作状態を監視する状態変化検出回路６ａ、７ａを備えて構成される。本実施形態では、状態変化検出回路６ａ、７ａの内部のレジスタを読み出すことにより、少なくともＣＰＵが動作している状態である「ＭＡＩＮ−ＲＵＮ」、とＣＰＵが動作していない状態である「ＳＬＥＥＰ」の２状態を確認することが可能となっている。   A CPU (Control-CPU) 6 and a CPU (Application-CPU) 7 are respectively provided with state change detection circuits 6 a and 7 a for monitoring the operation state of the CPU. In the present embodiment, by reading out the internal registers of the state change detection circuits 6a and 7a, at least “MAIN-RUN” in which the CPU is operating and “SLEEP” in which the CPU is not operating. These two states can be confirmed.

また、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６に付随するメモリ８の充電電流値レジスタ８ａには、上記ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６及びＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７の動作状態の組み合わせに対応する充電電流値が格納されている。   A charging current value register 8 a of a memory 8 associated with the CPU (Control-CPU) 6 has a charging current value corresponding to a combination of operating states of the CPU (Control-CPU) 6 and the CPU (Application-CPU) 7. Is stored.

図２は、ＣＰＵの動作状態と充電電流値の関係を説明するための図である。例えば、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６とＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７の双方が「ＳＬＥＥＰ」であるスタンバイ状態（待受状態）では、規定充電電流値である６００［ｍＡ］が適用される。これに対し、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６やＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７が「ＭＡＩＮ−ＲＵＮ」となった状態では、それぞれ規定充電電流値より低い充電電流値が適用される。   FIG. 2 is a diagram for explaining the relationship between the operating state of the CPU and the charging current value. For example, in a standby state (standby state) in which both the CPU (Control-CPU) 6 and the CPU (Application-CPU) 7 are “SLEEP”, a specified charging current value of 600 [mA] is applied. On the other hand, when the CPU (Control-CPU) 6 or the CPU (Application-CPU) 7 is “MAIN-RUN”, a charging current value lower than the specified charging current value is applied.

より具体的には、充電中に、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６のみが「ＭＡＩＮ−ＲＵＮ」となった場合（通話状態）、充電電流値５００［ｍＡ］が設定されている。また、充電中に、ＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）のみが「ＭＡＩＮ−ＲＵＮ」となった場合（例：ＴＶ視聴状態）、充電電流値４００［ｍＡ］が設定されている。更に、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６とＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７の双方が「ＭＡＩＮ−ＲＵＮ」となった状態では、規定充電電流値６００［ｍＡ］に対し、前２者の削減幅を適用した充電電流値３００［ｍＡ］が設定されている。   More specifically, when only the CPU (Control-CPU) 6 becomes “MAIN-RUN” during a charge (calling state), a charging current value of 500 [mA] is set. Further, when only a CPU (Application-CPU) becomes “MAIN-RUN” during charging (eg, TV viewing state), a charging current value of 400 [mA] is set. Furthermore, in the state where both the CPU (Control-CPU) 6 and the CPU (Application-CPU) 7 are “MAIN-RUN”, the reduction amount of the former two is applied to the specified charging current value 600 [mA]. The charged current value of 300 [mA] is set.

続いて、本実施形態の動作について図面を参照して詳細に説明する。図３は、本実施形態に係る携帯電話機の充電中の処理フローを表した図である。図３を参照すると、ＡＣアダプタ４の接続が検知されると（ステップＳ００１）、携帯電話機のＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６は、所定時間間隔毎に、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６とＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７の動作状態の確認を開始する（ステップＳ００２）。   Next, the operation of this embodiment will be described in detail with reference to the drawings. FIG. 3 is a diagram illustrating a processing flow during charging of the mobile phone according to the present embodiment. Referring to FIG. 3, when the connection of the AC adapter 4 is detected (step S001), the CPU (Control-CPU) 6 of the mobile phone is connected to the CPU (Control-CPU) 6 and the CPU (Application) at predetermined time intervals. -Confirmation of the operating state of the CPU 7 is started (step S002).

より具体的には、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６が、状態変化検出回路６ａ内部のレジスタを読み込むことにより自身の状態（ＭＡＩＮ−ＲＵＮ又はＳＬＥＥＰ）を確認するとともに、ＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７が、状態変化検出回路７ａ内部のレジスタを読み込むことにより自身の状態（ＭＡＩＮ−ＲＵＮ又はＳＬＥＥＰ）を確認し、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６に通知することにより、両ＣＰＵの動作状態が把握される。   More specifically, the CPU (Control-CPU) 6 reads the internal register of the state change detection circuit 6a to check its own state (MAIN-RUN or SLEEP), and the CPU (Application-CPU) 7 Then, by reading a register in the state change detection circuit 7a, its own state (MAIN-RUN or SLEEP) is confirmed, and the CPU (Control-CPU) 6 is notified of the operation state of both CPUs.

ここで例えば、ステップＳ００２で得た両ＣＰＵの動作状態がともに「ＳＬＥＥＰ」である場合、携帯電話機の消費電流も少ない（発熱も少ない）ため、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６は、充電制御回路３に対し、規定充電電流値による充電を指示する（ステップＳ００３）。   Here, for example, when the operating states of both CPUs obtained in step S002 are both “SLEEP”, the current consumption of the mobile phone is small (there is little heat generation), so the CPU (Control-CPU) 6 is connected to the charging control circuit 3. Is instructed to charge at the specified charging current value (step S003).

一方、動作状態が「ＭＡＩＮ−ＲＵＮ」であるＣＰＵがある場合、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６は、メモリ８の充電電流値レジスタ８ａより両ＣＰＵの状態に対応する充電電流値を読み出し（ステップＳ００４）、充電制御回路３に対し、読み出した充電電流値による充電を指示する（ステップＳ００５）。この場合に読み出される充電電流値は、図２のとおり規定充電電流値より低く設定され、少なくとも携帯電話機の消費電流を賄うに足る電流値であり、充電制御回路３の発熱は未然に防止される。   On the other hand, when there is a CPU whose operation state is “MAIN-RUN”, the CPU (Control-CPU) 6 reads out the charging current values corresponding to the states of both CPUs from the charging current value register 8a of the memory 8 (step S004). ) The charging control circuit 3 is instructed to charge with the read charging current value (step S005). The charging current value read out in this case is set lower than the specified charging current value as shown in FIG. 2, and is a current value sufficient to cover at least the current consumption of the mobile phone, and heat generation of the charging control circuit 3 is prevented in advance. .

以降、所定時間間隔毎に、充電制御回路３により電池電圧の確認が行われ（ステップＳ００６）、電池電圧が所定値未満であり（ステップＳ００６の「未充電」）かつＣＰＵの状態変化がない限り（ステップＳ００８のＮｏ）、当該充電電流値にて充電が継続され、電池電圧が所定値以上となった時点で（ステップＳ００６の「フル充電」）、充電完了となる（ステップＳ００７）。   Thereafter, as long as the battery voltage is confirmed by the charge control circuit 3 at every predetermined time interval (step S006), the battery voltage is less than the predetermined value ("uncharged" in step S006), and the state of the CPU is not changed. (No in step S008), charging is continued at the charging current value, and when the battery voltage becomes equal to or higher than a predetermined value ("full charging" in step S006), charging is completed (step S007).

一方、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６又はＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７の状態変化検出回路６ａ、７ａにより、ＣＰＵの状態変化が検出された場合には（ステップＳ００８のＹｅｓ）、ステップＳ００２に戻って、両ＣＰＵの動作状態に応じた充電電流値への切り換えが行われる。   On the other hand, if a change in the CPU state is detected by the state change detection circuits 6a and 7a of the CPU (Control-CPU) 6 or the CPU (Application-CPU) 7 (Yes in step S008), the process returns to step S002. The charging current value is switched according to the operating state of both CPUs.

以上のとおり、ＣＰＵの動作状態で把握される携帯電話機の動作状態の変化する都度、充電電流が即座に変更されるため、充電中にユーザが携帯電話機の操作等を行った場合でも発熱量は抑えられることになる。   As described above, since the charging current is immediately changed every time the operating state of the mobile phone ascertained based on the operating state of the CPU is changed, even if the user operates the mobile phone during charging, the amount of generated heat is It will be suppressed.

以上、２つのＣＰＵがそれぞれ２状態の計４状態を有するものとした本発明の第１の実施形態を述べたが、ＣＰＵ及びその他機能部の数や、消費電流値が変わりうる状態に応じた各充電電流値をメモリ８に格納することで複雑な組み合わせにも対応することが可能である。   In the above, the first embodiment of the present invention in which two CPUs each have two states in total has been described. However, the number of CPUs and other functional units and the state in which the current consumption value can change are described. By storing each charging current value in the memory 8, it is possible to cope with complicated combinations.

［第２の実施形態］
また、上記第１の実施形態と同様の構成にて、携帯電話機の個々の動作状態に応じ、充電電流値を細かく変更させることも可能である。続いて、携帯電話機の具体の状態により充電電流値を制御するよう構成した本発明の第２の実施形態について説明する。 [Second Embodiment]
In addition, with the same configuration as in the first embodiment, it is also possible to finely change the charging current value according to the individual operation state of the mobile phone. Next, a second embodiment of the present invention configured to control the charging current value according to a specific state of the mobile phone will be described.

図４は、本実施形態に係る携帯電話機において適用される携帯電話機の具体の動作状態と、充電電流値の関係を表した図である。図４の例では、「通話」状態の充電電流値４００［ｍＡ］に対して、消費電流の小さい「圏外」状態では、規定充電電流値以下であるが高めの充電電流値５００［ｍＡ］が設定されている。ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６のみが「ＭＡＩＮ−ＲＵＮ」である場合に一律に充電電流値５００［ｍＡ］を適用する図２の例よりもより細かい制御が可能となっている。   FIG. 4 is a diagram showing a relationship between a specific operation state of the mobile phone applied to the mobile phone according to the present embodiment and a charging current value. In the example of FIG. 4, the charging current value 400 [mA] in the “call” state is lower than the specified charging current value in the “out of service” state where the current consumption is small, but a higher charging current value 500 [mA]. Is set. When only the CPU (Control-CPU) 6 is “MAIN-RUN”, finer control is possible than in the example of FIG. 2 in which the charging current value 500 [mA] is uniformly applied.

また同様に図４の例では、カメラ部１１が動作しているか、ＴＶ部１０が動作しているかによって充電電流値が異なっており、消費電流の大きい「テレビ視聴」状態では、より低い充電電流値が設定されている。ＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７のみが「ＭＡＩＮ−ＲＵＮ」となった場合に一律に充電電流値４００［ｍＡ］を適用する図２の例よりもより細かい制御が可能となっている。   Similarly, in the example of FIG. 4, the charging current value varies depending on whether the camera unit 11 is operating or the TV unit 10 is operating. In the “TV viewing” state where the consumption current is large, the charging current is lower. Value is set. When only the CPU (Application-CPU) 7 becomes “MAIN-RUN”, finer control is possible than in the example of FIG. 2 in which the charging current value 400 [mA] is uniformly applied.

また同様に図４の例では、JAVA（登録商標）アプリケーションが動作しているか、テレビ電話機能が利用されているかによって充電電流値が異なっており、消費電流の大きい「テレビ電話」状態では、より低い充電電流値が設定されている。ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６とＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７の双方が「ＭＡＩＮ−ＲＵＮ」となった場合に一律に充電電流値３００［ｍＡ］を適用する図２の例よりもより細かい制御が可能となっている。   Similarly, in the example of FIG. 4, the charging current value differs depending on whether the JAVA (registered trademark) application is operating or the videophone function is used. A low charge current value is set. When the CPU (Control-CPU) 6 and the CPU (Application-CPU) 7 are both “MAIN-RUN”, finer control than the example of FIG. 2 in which the charging current value 300 [mA] is uniformly applied. It is possible.

なお、図４には、参考のためＣＰＵの動作状態が記載されているが、上記したとおり、ＣＰＵの状態を監視する必要は無く、携帯電話機の状態、起動している機能のみ監視することにより上記充電電流の切り換えを行うことが可能である。   4 shows the operation state of the CPU for reference. However, as described above, there is no need to monitor the CPU state, and only the state of the mobile phone and the activated function are monitored. The charging current can be switched.

また、本実施形態では上記第１の実施形態と同様の仕様の携帯電話機に適用するものとして説明したが、その他位置ナビゲーション機能や赤外線通信機能等の各種機能の有無及びこれら機能の使用時の消費電流値に応じて、充電電流値をより細かく設定することが可能である。   In this embodiment, the description has been made assuming that the present invention is applied to the mobile phone having the same specifications as those in the first embodiment. However, the presence / absence of various functions such as a position navigation function and an infrared communication function, and consumption when these functions are used. It is possible to set the charging current value more finely according to the current value.

［第３の実施形態］
また、上記した第１の実施形態における充電制御回路３を、ＡＣアダプタ４側に実装することも可能である。続いて、充電制御回路３をＡＣアダプタ４側に配置した本発明の第３の実施形態について説明する。 [Third Embodiment]
In addition, the charging control circuit 3 in the first embodiment described above can be mounted on the AC adapter 4 side. Subsequently, a third embodiment of the present invention in which the charging control circuit 3 is arranged on the AC adapter 4 side will be described.

図５は、本発明の第３の実施形態に係る携帯電話機の構成を表したブロック図である。本発明の第１の実施形態との相違点は、充電制御回路３がＡＣアダプタ４に内蔵されている点と、そのために、携帯電話機とＡＣアダプタ４間に充電電流値を送信するための信号線を追加した点（不図示）である。   FIG. 5 is a block diagram showing the configuration of a mobile phone according to the third embodiment of the present invention. The difference from the first embodiment of the present invention is that the charging control circuit 3 is built in the AC adapter 4 and a signal for transmitting the charging current value between the mobile phone and the AC adapter 4 for that purpose. This is a point (not shown) to which a line is added.

本実施形態によれば、充電時の携帯電話機側の発熱を一層抑えることが可能となる。   According to the present embodiment, it is possible to further suppress heat generation on the mobile phone side during charging.

［第４の実施形態］
また、液晶ディスプレイや番号ボタン部を使用する状態と、これらを使用しない状態との２状態を有する折り畳み型携帯電話機等に本発明を適用する場合には、液晶ディスプレイや番号ボタン部を使用可能な状態であるか否かにより、充電電流値を変更することも可能である。 [Fourth Embodiment]
In addition, when the present invention is applied to a foldable mobile phone having two states, a state in which the liquid crystal display and the number button part are used and a state in which these are not used, the liquid crystal display and the number button part can be used. It is also possible to change the charging current value depending on whether or not it is in a state.

続いて、本発明を折り畳み型携帯電話機に適用した本発明の第４の実施形態について説明する。なお、折り畳みヒンジの開閉状態については、バックライトの点灯制御等に用いる既存のセンサを用いて検出することが可能である。   Next, a fourth embodiment of the present invention in which the present invention is applied to a foldable mobile phone will be described. Note that the open / closed state of the folding hinge can be detected using an existing sensor used for backlight control or the like.

図６は、本実施形態に係る折り畳み型携帯電話機において適用される携帯電話機のＣＰＵの動作状態及びヒンジ開閉状態と充電電流値の関係を表した図である。図２との相違点は、ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）６とＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）７の双方が「ＳＬＥＥＰ」であるスタンバイ状態（待受状態）における規定充電電流値が、携帯電話機の折り畳みヒンジの開閉状態に応じて、変更される点である。   FIG. 6 is a diagram showing the relationship between the operating state of the CPU and the hinge open / close state and the charging current value of the mobile phone applied to the foldable mobile phone according to the present embodiment. The difference from FIG. 2 is that the specified charging current value in the standby state (standby state) in which both the CPU (Control-CPU) 6 and the CPU (Application-CPU) 7 are “SLEEP” is the folding hinge of the mobile phone. This is a point that is changed according to the open / closed state of.

図６の例では、折り畳みヒンジが開状態である場合は、今後ユーザが携帯電話機を操作する可能性が高いため、規定充電電流値である６００［ｍＡ］が適用される。一方、折り畳みヒンジが閉状態である場合は、ユーザが操作する可能性は低いため、より高い充電電流７００［ｍＡ］が適用される。   In the example of FIG. 6, when the folding hinge is in the open state, the user is likely to operate the mobile phone in the future, so the specified charging current value of 600 [mA] is applied. On the other hand, when the folding hinge is in the closed state, since the possibility that the user operates is low, a higher charging current of 700 [mA] is applied.

また、第２の実施形態に係る携帯電話機が折り畳み型携帯電話機である場合には、図４の圏内待ち受け状態における充電電流値を、ヒンジの開閉状態に応じてそれぞれ設定することにより、ヒンジ開閉状態に応じた充電電流値の変更を実現することができる。   When the mobile phone according to the second embodiment is a foldable mobile phone, the charging current value in the in-standby state of FIG. 4 is set according to the open / close state of the hinge, thereby opening and closing the hinge. The charging current value can be changed according to

以上のように自機のディスプレイ開閉機構の開閉状態に応じて、規定充電電流値を増減する本実施形態によれば、液晶ディスプレイや番号ボタン部を使用する状態に対して、これらを使用しない状態での充電電流を増大させ、充電に要する時間を一層短縮することが可能となる。   As described above, according to the present embodiment in which the specified charging current value is increased or decreased according to the open / close state of the display opening / closing mechanism of the own device, the state in which these are not used in comparison with the state in which the liquid crystal display and the number button unit are used It is possible to increase the charging current at, thereby further reducing the time required for charging.

以上、本発明の好適な各実施形態を説明したが、本発明の技術的範囲は、上述した実施形態に限定されるものではなく、自機の動作状態が所定値以上の電流を消費する動作状態に至った場合に、充電制御回路への指示電流値を、スタンバイ状態での規定充電電流値より低い電流値に切り換えるという本発明の要旨を逸脱しない範囲で、各種の変形・置換をなしうることが可能であることはいうまでもない。   The preferred embodiments of the present invention have been described above. However, the technical scope of the present invention is not limited to the above-described embodiments, and the operation state of the own device consumes a current of a predetermined value or more. Various modifications and replacements can be made without departing from the gist of the present invention that the instruction current value to the charging control circuit is switched to a current value lower than the specified charging current value in the standby state when the state is reached. It goes without saying that it is possible.

例えば、上記した各実施形態では、本発明を携帯電話機に適用した例を挙げて説明したが、上記本発明の要旨に照らせば、家庭用電話機の子機、パーソナルコンピュータ、ＰＤＡ（Ｐｅｒｓｏｎａｌ Ｄｉｇｉｔａｌ Ａｓｓｉｓｔａｎｔ）、携帯型プレーヤー等の各種携帯型電子機器の内蔵電池への充電にも適用することが可能である。   For example, in each of the above-described embodiments, the example in which the present invention is applied to a mobile phone has been described. However, in light of the gist of the present invention, a handset of a home phone, a personal computer, a PDA (Personal Digital Assistant) It can also be applied to charging of built-in batteries of various portable electronic devices such as portable players.

本発明の第１の実施形態に係る携帯電話機の構成を表したブロック図である。1 is a block diagram illustrating a configuration of a mobile phone according to a first embodiment of the present invention. 本発明の第１の実施形態に係る携帯電話機に適用されるＣＰＵの動作状態と充電電流値の関係を表した図である。It is a figure showing the relationship between the operating state of the CPU applied to the mobile phone according to the first embodiment of the present invention and the charging current value. 本発明の第１の実施形態に係る携帯電話機の充電中の処理フローを表した図である。It is a figure showing the processing flow during charge of the mobile telephone which concerns on the 1st Embodiment of this invention. 本発明の第２の実施形態に係る携帯電話機に適用される動作状態と充電電流値の関係を表した図である。It is a figure showing the relationship between the operating state applied to the mobile phone which concerns on the 2nd Embodiment of this invention, and a charging current value. 本発明の第３の実施形態に係る携帯電話機の構成を表したブロック図である。It is a block diagram showing the structure of the mobile telephone which concerns on the 3rd Embodiment of this invention. 本発明の第４の実施形態に係る折り畳み型携帯電話機に適用されるＣＰＵの動作状態及びヒンジ開閉状態と充電電流値の関係を表した図である。It is a figure showing the relationship between the operating state of the CPU applied to the foldable mobile phone according to the fourth embodiment of the present invention, the hinge open / closed state, and the charging current value.

符号の説明Explanation of symbols

１ アンテナ
２ 無線部
３ 充電制御回路
４ ＡＣアダプタ
５ 電池
６ ＣＰＵ（Ｃｏｎｔｒｏｌ−ＣＰＵ）
６ａ、７ａ 状態変化検出回路
７ ＣＰＵ（Ａｐｐｌｉｃａｔｉｏｎ−ＣＰＵ）
８、９ メモリ
８ａ 充電電流値レジスタ
１０ ＴＶ部
１１ カメラ部
１２ 表示部 DESCRIPTION OF SYMBOLS 1 Antenna 2 Radio | wireless part 3 Charging control circuit 4 AC adapter 5 Battery 6 CPU (Control-CPU)
6a, 7a State change detection circuit 7 CPU (Application-CPU)
8, 9 Memory 8a Charging current value register 10 TV unit 11 Camera unit 12 Display unit

Claims (7)

スタンバイ状態及び消費電流値の異なる少なくとも２以上の動作状態を有する携帯型電子機器であって、
指示電流値に従って内蔵電池に充電電流を供給する充電制御回路と、
前記スタンバイ状態を含む自機の動作状態の遷移を監視するとともに、前記スタンバイ状態においては規定充電電流値を、その他の動作状態においては少なくとも前記規定充電電流値より低く定められた電流値を、前記指示電流値として出力する制御部と、を備えること、
を特徴とする携帯型電子機器。 A portable electronic device having at least two operating states with different standby states and current consumption values,
A charge control circuit for supplying a charge current to the internal battery according to the indicated current value;
While monitoring the transition of the operation state of the own machine including the standby state, the specified charging current value in the standby state, the current value determined at least lower than the specified charging current value in the other operation state, A control unit that outputs the indicated current value,
A portable electronic device characterized by ＣＰＵの動作状態の変化を検出する状態変化検出回路を有し、
前記ＣＰＵの動作状態の変化を用いて、前記充電制御回路への指示電流値を切り換えること、
を特徴とする請求項１に記載の携帯型電子機器。 A state change detection circuit for detecting a change in the operating state of the CPU;
Using the change in the operating state of the CPU to switch the instruction current value to the charge control circuit;
The portable electronic device according to claim 1. 自機のディスプレイ開閉機構の開閉状態を検出する手段を備え、
前記開閉状態の変化に応じて、前記スタンバイ状態での規定充電電流値を増減すること、
を特徴とする請求項１又は２に記載の携帯型電子機器。 It has means for detecting the open / closed state of its own display opening / closing mechanism,
Increasing or decreasing the specified charging current value in the standby state according to the change in the open / close state,
The portable electronic device according to claim 1, wherein: 前記自機の状態に応じた複数の指示電流値を格納する充電電流値レジスタを備えたこと、
を特徴とする請求項１乃至３いずれか一に記載の携帯型電子機器。 A charging current value register for storing a plurality of instruction current values according to the state of the device;
The portable electronic device according to any one of claims 1 to 3. ＡＣアダプタ側に配設された前記充電制御回路に前記指示電流値を出力する手段を備えたこと、
を特徴とする請求項１乃至４いずれか一に記載の携帯型電子機器。 Means for outputting the indicated current value to the charge control circuit arranged on the AC adapter side;
The portable electronic device according to claim 1, wherein: スタンバイ状態及び消費電流値の異なる少なくとも２以上の動作状態を有し、指示電流値に従って内蔵電池に充電電流を供給する充電制御回路を備えた携帯型電子機器の内蔵コンピュータに実行させるプログラムであって、
充電処理中に、
前記スタンバイ状態を含む自機の動作状態の遷移を監視する処理と、
前記監視結果に応じて、前記指示電流値として、前記スタンバイ状態においては規定充電電流値を、その他の動作状態においては少なくとも前記規定充電電流値より低く定められた電流値を、出力する処理と、
を前記携帯型電子機器の内蔵コンピュータに実行させるプログラム。 A program to be executed by a built-in computer of a portable electronic device that has a standby state and at least two operating states having different current consumption values and includes a charging control circuit that supplies a charging current to a built-in battery according to an instruction current value. ,
During the charging process,
A process of monitoring the transition of the operation state of the own machine including the standby state;
According to the monitoring result, as the instruction current value, a process of outputting a specified charging current value in the standby state and a current value determined at least lower than the specified charging current value in other operation states;
A program for causing the built-in computer of the portable electronic device to execute. スタンバイ状態及び消費電流値の異なる少なくとも２以上の動作状態を有し、指示電流値に従って内蔵電池に充電電流を供給する充電制御回路を備えた携帯型電子機器の内蔵電池の充電方法であって、
前記携帯型電子機器の制御部が、前記スタンバイ状態を含む自機の動作状態の遷移を監視するステップと、
前記監視結果に応じて、前記携帯型電子機器の制御部が、前記スタンバイ状態においては規定充電電流値を、その他の動作状態においては少なくとも前記規定充電電流値より低く定められた電流値を、前記指示電流値として出力するステップと、を含むこと、
を特徴とする携帯型電子機器の内蔵電池の充電方法。 A charging method for a built-in battery of a portable electronic device having a standby state and at least two operation states having different current consumption values and having a charge control circuit for supplying a charging current to the built-in battery according to an indicated current value,
The control unit of the portable electronic device monitors the transition of the operation state of the own device including the standby state;
In accordance with the monitoring result, the control unit of the portable electronic device has a specified charging current value in the standby state, and a current value determined at least lower than the specified charging current value in the other operation states, Outputting as an instruction current value,
A charging method for a built-in battery of a portable electronic device.
JP2005359265A 2005-12-13 2005-12-13 Mobile electronic apparatus and method of charging its built-in battery Withdrawn JP2007166774A (en)

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KR20150051812A (en) * 2013-11-05 2015-05-13 삼성전자주식회사 Method and apparatus for fast charge in electronic device
JP2017509308A (en) * 2014-12-16 2017-03-30 小米科技有限責任公司Ｘｉａｏｍｉ Ｉｎｃ． CHARGE MANAGEMENT METHOD, CHARGE MANAGEMENT DEVICE, PROGRAM, AND RECORDING MEDIUM
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JP2019087891A (en) * 2017-11-07 2019-06-06 キヤノン株式会社 Imaging apparatus, control method, and program
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JP2010081790A (en) * 2008-08-27 2010-04-08 Panasonic Corp Electronic equipment
EP3066713A4 (en) * 2013-11-05 2017-07-05 Samsung Electronics Co., Ltd. Method for rapid charging and electronic device thereof
CN105706291B (en) * 2013-11-05 2021-03-26 三星电子株式会社 Method for fast charging and electronic device thereof
CN105706291A (en) * 2013-11-05 2016-06-22 三星电子株式会社 Method for rapid charging and electronic device thereof
WO2015068997A1 (en) 2013-11-05 2015-05-14 Samsung Electronics Co., Ltd. Method for rapid charging and electronic device thereof
US9634509B2 (en) 2013-11-05 2017-04-25 Samsung Electronics Co., Ltd Method for rapid charging and electronic device thereof
KR20150051812A (en) * 2013-11-05 2015-05-13 삼성전자주식회사 Method and apparatus for fast charge in electronic device
KR102144589B1 (en) * 2013-11-05 2020-08-13 삼성전자주식회사 Method and apparatus for fast charge in electronic device
KR101900405B1 (en) * 2014-12-16 2018-09-20 시아오미 아이엔씨. Method and device for charge management, program and recording medium
JP2017509308A (en) * 2014-12-16 2017-03-30 小米科技有限責任公司Ｘｉａｏｍｉ Ｉｎｃ． CHARGE MANAGEMENT METHOD, CHARGE MANAGEMENT DEVICE, PROGRAM, AND RECORDING MEDIUM
JP2019037097A (en) * 2017-08-21 2019-03-07 株式会社メルコホールディングス Charging system, charger and program
JP7021431B2 (en) 2017-08-21 2022-02-17 株式会社メルコホールディングス Charging system, charger, and program
JP2019087891A (en) * 2017-11-07 2019-06-06 キヤノン株式会社 Imaging apparatus, control method, and program
JP7005292B2 (en) 2017-11-07 2022-01-21 キヤノン株式会社 Imaging equipment, control methods and programs
US11133695B2 (en) 2018-09-25 2021-09-28 Sharp Kabushiki Kaisha Control device, electronic device, and control method

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