JP2010098912A - Charger for mobile electronic apparatus - Google Patents

Charger for mobile electronic apparatus Download PDF

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JP2010098912A
JP2010098912A JP2008269928A JP2008269928A JP2010098912A JP 2010098912 A JP2010098912 A JP 2010098912A JP 2008269928 A JP2008269928 A JP 2008269928A JP 2008269928 A JP2008269928 A JP 2008269928A JP 2010098912 A JP2010098912 A JP 2010098912A
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charger
secondary battery
charging
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power supply
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Zenzo Nakamura
善蔵 中村
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Tokyo Coil Engineering Co 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
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    • Y02E60/10—Energy storage using batteries

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a charger for a mobile electronic apparatus which charges a secondary battery within a charger body from an external DC power supply and charges a mobile electronic apparatus concurrently at the same time. <P>SOLUTION: The charger includes the charger body 11 having a power supply supplying terminal 15 to supply a charging current to the mobile electronic apparatus 14, a built-in secondary battery module 19 which is provided inside the charger body 11 and includes the secondary battery 17 and a switch 18 for preventing overcharge and over-discharge, the external DC power supply 12 provided outside the charger body 11, and two charging circuits 23 and 26 in which a charging circuit provided in the charger body 11 for charging from the external DC power supply 12 to the built-in secondary battery module 19 and a charging circuit for charging from the external DC power supply 12 to the mobile electronic apparatus 14 through the power supply supplying terminal 15 are independent concurrently. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、例えば、携帯電話機、携帯ゲーム機器等のバッテリーに充電できる携帯電子機器の充電器に関する。   The present invention relates to a charger for a portable electronic device capable of charging a battery such as a mobile phone and a portable game device.

携帯電子機器としての例えば携帯電話機は、本体の内部にバッテリーを備えており、充電が必要になって時には専用のＡＣ充電器を使用してバッテリーに充電することが行なわれている。しかし、専用のＡＣ充電器は嵩張るため、旅行や出張等の外出時にＡＣ充電器を持ち運ぶことは煩雑である。   For example, a mobile phone as a portable electronic device includes a battery inside a main body, and when charging is necessary, the battery is charged by using a dedicated AC charger. However, since the dedicated AC charger is bulky, it is troublesome to carry the AC charger when traveling or traveling.

また、乾電池を内蔵した充電器も市販されているが、乾電池自体に重量があるため、持ち運びに困難であり、最近では、太陽電池パネルを搭載した携帯電話機用充電器が知られている（例えば、特許文献１参照。）。   Also, chargers with a built-in dry battery are commercially available, but the dry battery itself is heavy and difficult to carry. Recently, a charger for a mobile phone equipped with a solar cell panel is known (for example, , See Patent Document 1).

特許文献１に示す携帯電話機用充電器は、直方体形状のボディの内部にバッテリーを備えるとともに、ボディの表面に太陽電池パネルを装着し、さらにボディの端部に充電コネクタを設けたものである。そして、太陽電池パネルが太陽光エネルギーを受けると、そのエネルギーが電気エネルギーに変換され、ボディの内部のバッテリーに蓄電されるようになっている。したがって、充電コネクタを携帯電話機の充電端子に接続することにより、携帯電話機のバッテリーに充電することができる。
特許第３５８０８０６号公報 The mobile phone charger shown in Patent Document 1 includes a battery inside a rectangular parallelepiped body, a solar cell panel mounted on the surface of the body, and a charging connector provided at the end of the body. And if a solar cell panel receives sunlight energy, the energy will be converted into electric energy, and it will be stored in the battery inside a body. Therefore, the battery of the mobile phone can be charged by connecting the charging connector to the charging terminal of the mobile phone.
Japanese Patent No. 3580806

しかしながら、特許文献１に示すように、二次電池を内蔵した携帯電話機用充電器は、外部電源から二次電池へ充電する一つの充電回路しか有していない。したがって、携帯電話機を接続した状態で二次電池に充電しようとすると、二次電池は外部電源からの充電と携帯電話機への放電を繰り返すので、満充電されるまで極めて多数回の充電・放電を繰り返す。   However, as shown in Patent Document 1, a mobile phone charger incorporating a secondary battery has only one charging circuit for charging the secondary battery from an external power source. Therefore, if you try to charge the secondary battery with the mobile phone connected, the secondary battery will repeatedly charge from the external power supply and discharge to the mobile phone, so it will be charged and discharged many times until it is fully charged. repeat.

このため、充電器本体に内蔵された二次電池の寿命が著しく損なわれる。さらに、携帯電話機への充電が完了してから、二次電池への連続充電が開始されるので、充電時間が長くなってしまうという問題がある。   For this reason, the lifetime of the secondary battery built in the charger main body is significantly impaired. Furthermore, there is a problem that the charging time becomes longer because continuous charging to the secondary battery is started after the charging to the mobile phone is completed.

本発明は、前記事情に着目してなされたもので、その目的とするところは、外部直流電源から充電器本体内の二次電池への充電と携帯電子機器への充電を同時に並行して行なうことができ、携帯電子機器および二次電池への充電時間を大幅に短縮できる携帯電子機器の充電器を提供することにある。   The present invention has been made paying attention to the above-mentioned circumstances, and the object is to simultaneously charge the secondary battery in the charger main body and the portable electronic device in parallel from the external DC power source. Therefore, it is an object of the present invention to provide a charger for a portable electronic device that can significantly reduce the charging time for the portable electronic device and the secondary battery.

本発明は、前述した目的を達成するために、請求項１は、携帯電子機器へ充電電流を供給する電源供給端子を有する充電器本体と、前記充電器本体の内部に設けられた二次電池および過充電・過放電防止用スイッチを含む内蔵二次電池モジュールと、前記充電器本体の外部に設けられた外部直流電源と、前記充電器本体に設けられ、前記外部直流電源から前記内蔵二次電池モジュールに充電する充電回路と前記外部直流電源から前記電源供給端子を介して前記携帯電子機器に充電する充電回路が並行して独立している２つの充電回路とを具備したことを特徴とする携帯電子機器の充電器にある。   In order to achieve the above-described object, the present invention provides a charger main body having a power supply terminal for supplying a charging current to a portable electronic device, and a secondary battery provided in the charger main body. And a built-in secondary battery module including an overcharge / overdischarge prevention switch, an external DC power supply provided outside the charger main body, and a built-in secondary battery provided in the charger main body from the external DC power supply. A charging circuit for charging a battery module and two charging circuits in which a charging circuit for charging the portable electronic device from the external DC power supply via the power supply terminal is independent in parallel. Located in the charger of portable electronic devices.

請求項２は、請求項1の前記外部直流電源は、電池電源、太陽電池のいずれか一方もしくは両方であることを特徴とする。   A second aspect of the present invention is characterized in that the external DC power source of the first aspect is one or both of a battery power source and a solar cell.

請求項３は、請求項1の前記内蔵二次電池モジュールは、前記二次電池の電圧を昇圧又は降圧する手段を含むことを特徴とする。   According to a third aspect of the present invention, the built-in secondary battery module according to the first aspect includes means for stepping up or down the voltage of the secondary battery.

請求項４は、請求項１又は３の前記外部直流電源が前記内蔵二次電池モジュールに充電する充電回路には、前記二次電池の電圧を昇圧又は降圧する手段を無効にする手段を備えていることを特徴とする。   According to a fourth aspect of the present invention, the charging circuit for charging the built-in secondary battery module with the external DC power source according to the first or third aspect includes means for invalidating a means for stepping up or stepping down the voltage of the secondary battery. It is characterized by being.

請求項５は、請求項1の前記充電器本体には、前記外部直流電源から前記内蔵二次電池モジュールを充電中に、充電電流を検出して点灯する発光ダイオードを備えていることを特徴とする。   According to a fifth aspect of the present invention, the charger main body according to the first aspect includes a light emitting diode that is turned on by detecting a charging current while charging the built-in secondary battery module from the external DC power source. To do.

請求項６は、請求項１，２又は５の前記充電器本体には、前記太陽電池から前記内蔵二次電池モジュールを充電中に、充電電流を検出して点灯する発光ダイオードを備え、前記内蔵二次電池モジュールの過充電・過放電防止用スイッチが作動すると、前記発光ダイオードが消灯する手段を備えていることを特徴とする。   A sixth aspect of the present invention provides the charger main body according to any one of the first, second, and fifth aspects with a light emitting diode that is turned on by detecting a charging current while charging the built-in secondary battery module from the solar battery. The light emitting diode is turned off when an overcharge / overdischarge prevention switch of the secondary battery module is activated.

本発明によれば、外部直流電源から充電器本体内の二次電池への充電と携帯電子機器への充電を同時に並行して行なうことができ、携帯電子機器および二次電池への充電時間を大幅に短縮できるという効果がある。   According to the present invention, charging from the external DC power source to the secondary battery in the charger main body and charging to the portable electronic device can be performed simultaneously in parallel, and charging time to the portable electronic device and the secondary battery can be reduced. There is an effect that it can be greatly shortened.

以下、本発明の実施の形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は携帯電子機器の充電器の第１の実施形態を示し、１１は充電器本体である。充電器本体１１には外部直流電源１２と接続される外部電源入力端子１３と、携帯電子機器、例えば携帯電話機１４が接続され、携帯電話機１４へ充電電流を供給する電源供給端子１５が設けられている。前記外部直流電源１２は例えば電池電源であり、太陽電池１６を並列的に設けてもよい。   FIG. 1 shows a first embodiment of a charger for a portable electronic device, and 11 is a charger body. The charger main body 11 is connected to an external power input terminal 13 connected to an external DC power source 12 and a mobile electronic device such as a mobile phone 14, and a power supply terminal 15 for supplying a charging current to the mobile phone 14 is provided. Yes. The external DC power source 12 is a battery power source, for example, and solar cells 16 may be provided in parallel.

充電器本体１１の内部には二次電池１７および過充電・過放電防止用スイッチ１８を含む内蔵二次電池モジュール１９が設けられている。さらに、内蔵二次電池モジュール１９は二次電池１７の電圧を昇圧又は降圧する手段として昇圧又は降圧回路２０を介して電源供給端子１５に接続されている。   A built-in secondary battery module 19 including a secondary battery 17 and an overcharge / overdischarge prevention switch 18 is provided inside the charger main body 11. Further, the built-in secondary battery module 19 is connected to the power supply terminal 15 via a booster or step-down circuit 20 as means for boosting or stepping down the voltage of the secondary battery 17.

また、充電器本体１１の内部には外部直流電源１２から携帯電話機１４を直接充電するためのダイオード２１と抵抗体２２からなる第１の充電回路２３が設けられている。さらに、外部直流電源１２から二次電池１７に充電するためのダイオード２４と抵抗体２５からなる第２の充電回路２６が設けられている。   In addition, a first charging circuit 23 including a diode 21 and a resistor 22 for directly charging the mobile phone 14 from the external DC power supply 12 is provided inside the charger main body 11. Further, a second charging circuit 26 including a diode 24 and a resistor 25 for charging the secondary battery 17 from the external DC power supply 12 is provided.

すなわち、外部直流電源１２から携帯電話機１４に充電する第１の充電回路２３と外部直流電源１２から二次電池１７に充電する第２の充電回路２６とが設けられ、並行して同時に個々に充電できるように構成されている。したがって、携帯電話機１４に充電中に、充電器本体１１内の二次電池１７に充電でき、充電時間を大幅に短縮できる。   That is, a first charging circuit 23 that charges the mobile phone 14 from the external DC power supply 12 and a second charging circuit 26 that charges the secondary battery 17 from the external DC power supply 12 are provided, and are simultaneously charged individually. It is configured to be able to. Therefore, the secondary battery 17 in the charger main body 11 can be charged while the mobile phone 14 is being charged, and the charging time can be greatly shortened.

図２は携帯電子機器の充電器の第２の実施形態を示し、第１の実施形態と同一構成部分は同一番号を付して説明を省略する。本実施形態は、外部直流電源１２が接続されている状態では昇圧又は降圧回路２０を無効にするために、ＰＮＰトランジスタ２７が接続され、２８はＰＮＰトランジスタ２７のベース電流制限抵抗体である。外部直流電源１２は二次電池１７の電圧より高くなければならない。したがって、外部直流電源１２が接続されている状態ではＰＮＰトランジスタ２７のベース電圧の方がエミッタ電圧よりも高いのでオフとなり、昇圧又は降圧回路２０にはエネルギーが供給されないため、二次電池１７の電圧を昇圧又は降圧回路２０を無効にすることができる。   FIG. 2 shows a second embodiment of a charger for a portable electronic device, and the same components as those in the first embodiment are assigned the same reference numerals and explanations thereof are omitted. In the present embodiment, a PNP transistor 27 is connected to disable the step-up or step-down circuit 20 when the external DC power supply 12 is connected, and 28 is a base current limiting resistor of the PNP transistor 27. The external DC power source 12 must be higher than the voltage of the secondary battery 17. Therefore, when the external DC power supply 12 is connected, the base voltage of the PNP transistor 27 is higher than the emitter voltage, so it is turned off and no energy is supplied to the booster or step-down circuit 20. The step-up or step-down circuit 20 can be disabled.

図３は携帯電子機器の充電器の第３の実施形態を示し、第１の実施形態と同一構成部分は同一番号を付して説明を省略する。本実施形態は、外部直流電源１２から二次電池１７に充電中に、充電電流を検出して点灯する発光ダイオード２９を備えている。充電電流が流れている間は発光ダイオード２９が点灯し、充電電流が停止すると、過充電・過放電防止用スイッチ１８がオフするため、発光ダイオード２９が消灯する。したがって、外部直流電源１２によって二次電池１７に充電しているか否かを発光ダイオード２９によって判断できる。なお、３０は発光ダイオード２９の電流制限抵抗体である。   FIG. 3 shows a third embodiment of a charger for a portable electronic device, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The present embodiment includes a light emitting diode 29 that is turned on by detecting a charging current while the secondary battery 17 is being charged from the external DC power supply 12. While the charging current is flowing, the light emitting diode 29 is turned on. When the charging current is stopped, the overcharge / overdischarge prevention switch 18 is turned off, and the light emitting diode 29 is turned off. Therefore, it can be determined by the light emitting diode 29 whether or not the secondary battery 17 is charged by the external DC power supply 12. Reference numeral 30 denotes a current limiting resistor of the light emitting diode 29.

図４は携帯電子機器の充電器の第４の実施形態を示し、第１の実施形態と同一構成部分は同一番号を付して説明を省略する。外部直流電源１２から二次電池１７に充電するためのダイオード２４と抵抗体２５からなる第２の充電回路２６が設けられている。第２の充電回路２６に充電電流が流れている間は、接点Ａと接点Ｂの電圧はＶＡＢ＝ＶＤ＋Ｒ２５ＩＤとなっている。ここで、ＶＤはダイオード２４の順方向電圧降下、ＩＤは充電電圧である。 FIG. 4 shows a fourth embodiment of the charger of the portable electronic device, and the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted. A second charging circuit 26 including a diode 24 and a resistor 25 for charging the secondary battery 17 from the external DC power supply 12 is provided. While the charging current is flowing through the second charging circuit 26, the voltage at the contact A and the contact B is V AB = V D + R 25 ID . Here, V D is a forward voltage drop of the diode 24, and ID is a charging voltage.

ＩＤが流れている間は電圧ＶＡＢがトランジスタ３１のエミッタ・ベースのしきい電圧（通常は０．６Ｖ）よりも高くなるように外部直流電源１２の電圧を設定すれば、トランジスタ３１はオンとなり、発光ダイオード２９が点灯する。 If the voltage of the external DC power supply 12 is set so that the voltage V AB is higher than the threshold voltage of the emitter and base of the transistor 31 (usually 0.6 V) while ID is flowing, the transistor 31 is turned on. Thus, the light emitting diode 29 is turned on.

一方、二次電池１７の電圧が充電によって第１の規定電圧に達すると、過充電・過放電防止用スイッチ１８はオフとなり、発光ダイオード２９は消灯する。これによって充電電流は流れず、電圧ＶＡＢはほぼゼロとなるので、トランジスタ３１はオフになり、発光ダイオード２９は消灯する。なお、３２はベース電流制限抵抗体、３０は発光ダイオード２９の電流制限抵抗体である。 On the other hand, when the voltage of the secondary battery 17 reaches the first specified voltage by charging, the overcharge / overdischarge prevention switch 18 is turned off and the light emitting diode 29 is turned off. As a result, no charging current flows, and the voltage V AB becomes almost zero, so that the transistor 31 is turned off and the light emitting diode 29 is turned off. In addition, 32 is a base current limiting resistor, and 30 is a current limiting resistor of the light emitting diode 29.

すなわち、太陽電池を備えた充電器において、従来から太陽電池が発電中は発光ダイオードが点灯する手段を備えているが、二次電池が満充電になったときに発光ダイオードが消灯する手段は設けられていない。したがって、二次電池が満充電になっても太陽電池を太陽光に曝し続けるので、二次電池が過熱するという問題があるが、前述のように、二次電池１７の電圧が充電によって第１の規定電圧に達すると、過充電・過放電防止用スイッチ１８はオフとなり、発光ダイオード２９は消灯するため、このような問題を解消できる。   In other words, a charger equipped with a solar cell has conventionally been provided with means for turning on the light emitting diode while the solar cell is generating power, but provided with means for turning off the light emitting diode when the secondary battery is fully charged. It is not done. Therefore, since the solar battery is continuously exposed to sunlight even when the secondary battery is fully charged, there is a problem that the secondary battery is overheated. However, as described above, the voltage of the secondary battery 17 is first charged by charging. When the specified voltage is reached, the overcharge / overdischarge prevention switch 18 is turned off and the light emitting diode 29 is turned off.

太陽電池は、太陽光の明るさに比例する電流を出力する電流源であり、その出力電圧は負荷によって決まる。負荷が二次電池の場合と抵抗体ＲＬの場合の太陽電池の動作点を図５に示す。図５で、ＩＳＣは太陽電池を短絡したときの出力電流（短絡電流）、ＶＯＣは出力開放時の出力電圧（開放電圧）であり、曲線Ａは太陽電池の電圧・電流特性、ＶＢは二次電池の電圧、直線Ｂは傾き１／ＲＬの負荷直線を示す。 A solar cell is a current source that outputs a current proportional to the brightness of sunlight, and its output voltage is determined by a load. FIG. 5 shows operating points of the solar cell when the load is a secondary battery and when the load is a resistor RL . In FIG. 5, I SC is the output current (short-circuit current) when the solar cell is short-circuited, V OC is the output voltage (open-circuit voltage) when the output is open, curve A is the voltage-current characteristic of the solar cell, V B Represents a voltage of the secondary battery, and a straight line B represents a load straight line having a slope of 1 / RL .

図５で明らかなように、二次電池１７に充電中の太陽電池の動作点は点Ｐにあり、抵抗体負荷の場合の動作点は点Ｑは負荷抵抗を大きくすると、太陽電池の開放電圧ＶＯＣに近づく。 As is clear from FIG. 5, the operating point of the solar cell being charged in the secondary battery 17 is at point P, and the operating point in the case of a resistor load is that the point Q is the open circuit voltage of the solar cell when the load resistance is increased. Approaches VOC .

したがって、請求項６に示すように、太陽電池から内蔵二次電池モジュールを充電中に、充電電流を検出して点灯する発光ダイオードを備え、内蔵二次電池モジュールの過充電・過放電防止用スイッチが作動すると、発光ダイオードが消灯する手段を備えたものである。   Accordingly, a switch for preventing overcharge / overdischarge of the built-in secondary battery module, comprising: a light emitting diode that detects and turns on the charge current while charging the built-in secondary battery module from the solar battery. When the is operated, the light emitting diode is provided with means for turning off.

図６は携帯電子機器の充電器の第５の実施形態を示し、第１の実施形態と同一構成部分は同一番号を付して説明を省略する。図６に示すように、充電器本体１１は逆流防止ダイオード３３、太陽電池１６の電圧を検出するための抵抗体３４，３５およびトランジスタ３６、さらに発光ダイオード３７とその電流制限のための抵抗体３８を備えている。   FIG. 6 shows a fifth embodiment of the charger for the portable electronic device, and the same components as those in the first embodiment are given the same reference numerals and the description thereof is omitted. As shown in FIG. 6, the charger body 11 includes a backflow prevention diode 33, resistors 34 and 35 and a transistor 36 for detecting the voltage of the solar cell 16, a light emitting diode 37 and a resistor 38 for limiting the current thereof. It has.

太陽電池１６の電圧ＶＳが、

Figure 2010098912
The voltage V S of the solar cell 16 is
Figure 2010098912

よりも高くなると、トランジスタ３６はオンとなり、太陽電池１６が発電中であっても発光ダイオード３７には電流が流れない。式（１）において、ＶＢＥはトランジスタ３６のベース・エミッタ間のしきい電圧で、約０．６Ｖである。また、Ｒ１，Ｒ２はそれぞれ抵抗体３４と３５の値である。二次電池１７を充電中の太陽電池１６の出力電圧ＶＢＣは、
ＶＳＣ＝ＶＢ＋ＶＤ ……………（２）
となる。ここで、ＶＢは二次電池１７の電圧、ＶＤはダイオード３３の順方向電圧降下である。したがって、抵抗体３４，３５の値を、
ＶＳＣ＜ＶＳ＜ＶＯＣ ……………（３）
となるように設定すれば、充電中には発光ダイオード３７が点灯し、過充電・過放電防止用スイッチ１８が作動すると、発光ダイオード３７は消灯する。 Is higher than that, the transistor 36 is turned on, and no current flows through the light emitting diode 37 even when the solar cell 16 is generating power. In the equation (1), V BE is a threshold voltage between the base and emitter of the transistor 36 and is about 0.6V. R 1 and R 2 are the values of the resistors 34 and 35, respectively. The output voltage V BC of the solar battery 16 charging the secondary battery 17 is
V SC = V B + V D (2)
It becomes. Here, V B is the voltage of the secondary battery 17, and V D is the forward voltage drop of the diode 33. Therefore, the values of the resistors 34 and 35 are
V SC <V S <V OC …………… (3)
If so, the light emitting diode 37 is turned on during charging, and when the overcharge / overdischarge prevention switch 18 is activated, the light emitting diode 37 is turned off.

なお、本発明は前記実施形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化できる。また、前記実施形態に開示されている複数の構成要素の適宜な組合せにより種々の発明を形成できる。例えば、実施形態に示される全構成要素から幾つかの構成要素を削除してもよい。さらに、異なる実施形態に亘る構成要素を組み合わせてもよい。   Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, the constituent elements over different embodiments may be combined.

本発明の第１の実施形態を示す携帯電子機器の充電器の回路図。The circuit diagram of the charger of the portable electronic device which shows the 1st Embodiment of this invention. 本発明の第２の実施形態を示す携帯電子機器の充電器の回路図。The circuit diagram of the charger of the portable electronic device which shows the 2nd Embodiment of this invention. 本発明の第３の実施形態を示す携帯電子機器の充電器の回路図。The circuit diagram of the charger of the portable electronic device which shows the 3rd Embodiment of this invention. 本発明の第４の実施形態を示す携帯電子機器の充電器の回路図。The circuit diagram of the charger of the portable electronic device which shows the 4th Embodiment of this invention. 負荷が二次電池の場合と抵抗体の場合の太陽電池の動作点を示すグラフ。The graph which shows the operating point of the solar cell in case the load is a secondary battery and a resistor. 本発明の第５の実施形態を示す携帯電子機器の充電器の回路図。The circuit diagram of the charger of the portable electronic device which shows the 5th Embodiment of this invention.

符号の説明Explanation of symbols

１１…充電器本体、１２…外部直流電源、１３…外部電源入力端子、１４…携帯電話機、１５…電源供給端子、１６…太陽電池、１７…二次電池、１８…過充電・過放電防止用スイッチ、１９…内蔵二次電池モジュール、２０…昇圧又は降圧回路、２３…第１の充電回路、２６…第２の充電回路 DESCRIPTION OF SYMBOLS 11 ... Charger main body, 12 ... External DC power supply, 13 ... External power supply input terminal, 14 ... Mobile phone, 15 ... Power supply terminal, 16 ... Solar battery, 17 ... Secondary battery, 18 ... For overcharge / overdischarge prevention Switch, 19 ... Built-in secondary battery module, 20 ... Step-up or step-down circuit, 23 ... First charging circuit, 26 ... Second charging circuit

Claims (6)

携帯電子機器へ充電電流を供給する電源供給端子を有する充電器本体と、
前記充電器本体の内部に設けられた二次電池および過充電・過放電防止用スイッチを含む内蔵二次電池モジュールと、
前記充電器本体の外部に設けられた外部直流電源と、
前記充電器本体に設けられ、前記外部直流電源から前記内蔵二次電池モジュールに充電する充電回路と前記外部直流電源から前記電源供給端子を介して前記携帯電子機器に充電する充電回路が並行して独立している２つの充電回路と、
を具備したことを特徴とする携帯電子機器の充電器。 A charger body having a power supply terminal for supplying a charging current to the portable electronic device;
A built-in secondary battery module including a secondary battery and an overcharge / overdischarge prevention switch provided inside the charger body;
An external DC power source provided outside the charger body;
A charging circuit that is provided in the charger main body and that charges the built-in secondary battery module from the external DC power supply and a charging circuit that charges the portable electronic device from the external DC power supply via the power supply terminal in parallel Two independent charging circuits;
A charger for a portable electronic device, comprising: 前記外部直流電源は、電池電源、太陽電池のいずれか一方もしくは両方であることを特徴とする請求項１記載の携帯電子機器の充電器。   2. The charger for a portable electronic device according to claim 1, wherein the external DC power source is one or both of a battery power source and a solar cell. 前記内蔵二次電池モジュールは、前記二次電池の電圧を昇圧又は降圧する手段を含むことを特徴とする請求項１記載の携帯電子機器の充電器。   The charger for a portable electronic device according to claim 1, wherein the built-in secondary battery module includes means for stepping up or stepping down the voltage of the secondary battery. 前記外部直流電源が前記内蔵二次電池モジュールに充電する充電回路には、前記二次電池の電圧を昇圧又は降圧する手段を無効にする手段を備えていることを特徴とする請求項１又は３記載の携帯電子機器の充電器。   4. The charging circuit for charging the built-in secondary battery module by the external DC power supply includes means for invalidating means for boosting or stepping down the voltage of the secondary battery. Charger for portable electronic device as described. 前記充電器本体には、前記外部直流電源から前記内蔵二次電池モジュールを充電中に、充電電流を検出して点灯する発光ダイオードを備えていることを特徴とする請求項１記載の携帯電子機器の充電器。   2. The portable electronic device according to claim 1, wherein the charger main body includes a light emitting diode that is turned on by detecting a charging current while charging the built-in secondary battery module from the external DC power source. Charger. 前記充電器本体には、前記太陽電池から前記内蔵二次電池モジュールを充電中に、充電電流を検出して点灯する発光ダイオードを備え、前記内蔵二次電池モジュールの過充電・過放電防止用スイッチが作動すると、前記発光ダイオードが消灯する手段を備えていることを特徴とする請求項１，２又は５記載の携帯電子機器の充電器。
The charger main body includes a light emitting diode that is turned on by detecting a charging current while charging the built-in secondary battery module from the solar battery, and the overcharge / overdischarge prevention switch for the built-in secondary battery module. 6. The portable electronic device charger according to claim 1, further comprising means for turning off the light emitting diode when activated.
JP2008269928A 2008-10-20 2008-10-20 Charger for mobile electronic apparatus Ceased JP2010098912A (en)

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