JP2007151348A - Battery power supply - Google Patents

Battery power supply Download PDF

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Publication number
JP2007151348A
JP2007151348A JP2005344727A JP2005344727A JP2007151348A JP 2007151348 A JP2007151348 A JP 2007151348A JP 2005344727 A JP2005344727 A JP 2005344727A JP 2005344727 A JP2005344727 A JP 2005344727A JP 2007151348 A JP2007151348 A JP 2007151348A
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batteries
battery
supply circuit
power supply
predetermined number
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Inventor
Kazuhiro Toyoda
和弘 豊田
Atsushi Sakai
敦 酒井
Mikitaka Tamai
幹隆 玉井
Masao Yamaguchi
昌男 山口
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Priority to JP2005344727A priority Critical patent/JP2007151348A/en
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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 power supply which detachably connects the predetermined number of batteries, by which electric power is supplied even when the batteries fewer than the predetermined number are connected. <P>SOLUTION: The power supply includes the batteries 1 which are detachably mounted in the battery power supply A, a power circuit 4 which supplies outputs from the batteries 1 to electronic equipment B, and a battery connection circuit 10 which connects the batteries 1 to the power circuit 4. In the battery connection circuit 10, the predetermined number of the batteries 2 is detachably and electrically connected in series. When the batteries 1 fewer than the predetermined number are connected, a bypasses supply circuit 20 is provided which provides the outputs from the few batteries. When the predetermined number of the batteries 1 is connected, the bypass supply circuit 20 is not used, and the outputs from the predetermined number of the batteries 1 are supplied to the power circuit 4 by a high-voltage side supply circuit 30. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、電池電源に関する。   The present invention relates to a battery power source.

従来において、電気機器に電力を供給する補助電源について、以下の特許文献に開示される。この公報の図６の電気回路に開示されるように、電気機器に要求される電圧に応じて、素電池を２個、直列に接続して電力を供給している。
特開平２００２−３５８９４０号公報 Conventionally, an auxiliary power supply that supplies electric power to an electric device is disclosed in the following patent documents. As disclosed in the electric circuit of FIG. 6 of this publication, power is supplied by connecting two unit cells in series according to the voltage required for the electric device.
JP-A-2002-358940

上記従来のような補助電源においては、各素電池を着脱自在に補助電源に装着できる構造であるとき、ユーザー側において素電池が１個しかない場合は、この補助電源は、素電池を２個直列に接続して電力を供給する構造であることより、素電池１個から電力を供給することができない。つまり、補助電源を使用することができない。   In the conventional auxiliary power source, when each unit cell is detachably attached to the auxiliary power source and there is only one unit cell on the user side, this auxiliary power source has two unit cells. Since the power is supplied by connecting in series, power cannot be supplied from one unit cell. That is, the auxiliary power source cannot be used.

本発明は、このような問題点を解決するために成されたものであり、所定数の電池を着脱自在に接続可能な電源であって、所定数より少ない数の電池を接続するときでも電力供給できる電源を提供することを目的とする。   The present invention has been made to solve such problems, and is a power source that can be detachably connected to a predetermined number of batteries, and can be used even when a smaller number of batteries are connected. The object is to provide a power supply that can be supplied.

本発明のパック電池は、電子機器に直流電力を供給する電池電源であって、該電池電源内に着脱自在に装着される電池と、該電池からの出力を前記電子機器に供給する電源回路と、前記電池と前記電源回路とを接続する電池接続回路とを備え、該電池接続回路において、所定数の前記電池を着脱自在に、電気的に直列に、接続可能であって、前記所定数より、少ない数の前記電池を接続するとき、前記少ない数の前記電池からの出力を提供するバイパス供給回路を備え、前記所定数の前記電池を接続するとき、前記バイパス供給回路を利用せず、前記所定数の前記電池からの出力を高電圧側供給回路より前記電源回路に供給することを特徴とする。また、電源回路は、ＤＣ／ＤＣコンバータを含むことを特徴とする。   The battery pack of the present invention is a battery power source that supplies direct current power to an electronic device, a battery that is detachably mounted in the battery power source, and a power supply circuit that supplies output from the battery to the electronic device. A battery connection circuit for connecting the battery and the power supply circuit, wherein a predetermined number of the batteries can be detachably and electrically connected in series in the battery connection circuit. A bypass supply circuit for providing an output from the small number of the batteries when connecting a small number of the batteries, and not using the bypass supply circuit when connecting the predetermined number of the batteries, The output from a predetermined number of the batteries is supplied from the high voltage side supply circuit to the power supply circuit. The power supply circuit includes a DC / DC converter.

本発明においては、所定数より、少ない数の電池を接続するとき、少ない数の電池から出力を提供するバイパス供給回路を備えているので、少ない数の電池を接続するときであっても、電子機器に電力を供給することができる。   In the present invention, since a bypass supply circuit that provides output from a small number of batteries when connecting a smaller number of batteries than the predetermined number is provided, even when a small number of batteries are connected, Power can be supplied to the device.

また、所定数の電池を接続するとき、バイパス供給回路を利用せず、所定数の電池から出力を高電圧側供給回路より電力を供給しているので、直列接続された電池の高電圧な出力を、効率良く電源回路にて利用することができる。   In addition, when connecting a predetermined number of batteries, power is supplied from the high-voltage side supply circuit without using the bypass supply circuit, so the high-voltage output of the batteries connected in series Can be efficiently used in the power supply circuit.

本発明の実施例を、図を用いて詳細に説明する。図１、２は、本発明の第1実施例を示している。第１実施例においては、携帯電話等の２次電池(図示せず)を内蔵する電子機器Ｂに、電気接続して、本実施例の電池電源Ａを接続する。本実施例においては、電池電源Ａは、電子機器Ｂの内蔵する電池を、緊急に充電するため等の電源（＝緊急充電器）として利用され、電子機器Ｂに直流電力を供給する。   Embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 show a first embodiment of the present invention. In the first embodiment, the battery power source A of this embodiment is connected to an electronic device B incorporating a secondary battery (not shown) such as a mobile phone. In this embodiment, the battery power source A is used as a power source (= emergency charger) for urgently charging a battery built in the electronic device B, and supplies DC power to the electronic device B.

電子機器Ｂは、正常に、安全に動作するために、所定電圧（リチウムイオン電池を内蔵する携帯電話では、約５．４Ｖ）の入力電圧が要求されている。   In order for the electronic device B to operate normally and safely, an input voltage of a predetermined voltage (about 5.4 V in a mobile phone incorporating a lithium ion battery) is required.

電子機器Ｂ内においては、電池電源Ａより約５．４Ｖが供給されるので、電子機器Ｂ内部に、ＤＣ／ＤＣ降圧コンバータ（図示せず）を備え、降圧された電圧約４．２Ｖで充電される。電子機器Ｂが電力の供給が不要な場合（例えば、電子機器Ｂを使用せず、内蔵２次電池も満充電の場合）は、電子機器Ｂ内部の通電素子（図示せず）をオフして、電力の供給を遮断することになる。また、電子機器Ｂに電力が供給されるとき、電子機器Ｂが携帯電話であるときは、内蔵の２次電池を充電しつつ、電話、通信等の機能を動作させてもいいし、電話、通信等の機能を停止しても良い。また、これに代わって、携帯電話Ｂの機能により、携帯電話Ｂに内蔵される２次電池を充電することなく、携帯電話Ｂの通話、通信等の動作機能に電力が利用されることも可能である。   In the electronic device B, about 5.4V is supplied from the battery power source A. Therefore, the electronic device B is provided with a DC / DC step-down converter (not shown) and charged at a stepped down voltage of about 4.2V. Is done. When the electronic device B does not require power supply (for example, when the electronic device B is not used and the built-in secondary battery is also fully charged), the energization element (not shown) inside the electronic device B is turned off. The power supply will be cut off. In addition, when power is supplied to the electronic device B, when the electronic device B is a mobile phone, functions such as telephone and communication may be operated while charging a built-in secondary battery. Functions such as communication may be stopped. Alternatively, the power of the mobile phone B can be used for operating functions such as communication and communication of the mobile phone B without charging the secondary battery built in the mobile phone B by the function of the mobile phone B. It is.

電池電源Ａは、電子機器Ｂとプラス、マイナス出力端子２、２にて、電気接続している。電池電源Ａにおいては、着脱自在に装着される電池１と、電池１からの出力を電子機器Ｂに供給する電源回路４と、電池１と電源回路４とを接続する電池接続回路１０とを備えている。   The battery power source A is electrically connected to the electronic device B through the positive and negative output terminals 2 and 2. The battery power source A includes a battery 1 that is detachably mounted, a power circuit 4 that supplies an output from the battery 1 to the electronic device B, and a battery connection circuit 10 that connects the battery 1 and the power circuit 4. ing.

電源回路４は、電池１から供給される電力から、電子機器Ｂが要求する所定電圧（リチウムイオン電池を内蔵する携帯電話では、約５．４Ｖ）を、出力端子２、２より、出力する。この電源回路４は、入力電圧約１．０〜６．０Ｖにて動作して、所定電圧を出力しており、ＤＣ／ＤＣコンバータ（図示せず）を内蔵している。このような電源回路４は、本実施例は、電池１の２本の直列、又は、電池１の４本の直列の出力で、所定電圧が出力できる。   The power supply circuit 4 outputs from the output terminals 2 and 2 a predetermined voltage required by the electronic device B (about 5.4 V for a mobile phone incorporating a lithium ion battery) from the power supplied from the battery 1. The power supply circuit 4 operates at an input voltage of about 1.0 to 6.0 V, outputs a predetermined voltage, and includes a DC / DC converter (not shown). In this embodiment, the power supply circuit 4 can output a predetermined voltage with two series of batteries 1 or four series outputs of the battery 1.

電池１については、詳細には、所定数の４本の電池１ａ、１ｂ、１ｃ、１ｄが、着脱自在に装着されて、装着された状態で、電気的に直列に接続される。電子機器Ｂに、緊急に、電力を供給して、充電する必要があるときに、本実施例の電池電源Ａは利用されるので、電池には、入手が容易な円筒の単３型１次電池の乾電池が利用される。通常、電池１として乾電池の１本は、未使用の電池で最大約１．５Ｖが出力され、使用又は放置により出力電圧は０Ｖまで低下する。また、電池として、充電式の２次電池を利用することもできる。   For the battery 1, in detail, a predetermined number of four batteries 1a, 1b, 1c, and 1d are detachably mounted and electrically connected in series in the mounted state. Since the battery power source A of this embodiment is used when it is necessary to urgently supply power to the electronic device B and charge it, the battery has a cylindrical AA primary that is easily available. Battery dry batteries are used. Normally, one of the dry batteries as the battery 1 is an unused battery, and a maximum of about 1.5 V is output, and the output voltage decreases to 0 V when used or left. A rechargeable secondary battery can also be used as the battery.

電池接続回路１０において、低電圧側にて、電池１ａ、１ｂを連結して直列接続し、電池１ａの負極、電池１ｂの正極と接触する低電圧側端子３ｌ、３ｌを備えている。また、高電圧側にて、電池１ｃ、１ｄを連結して直列接続し、電池１ｃの負極、電池１ｄの正極と接触する高電圧側端子３ｈ、３ｈを備えている。   The battery connection circuit 10 includes low voltage side terminals 3l and 3l that are connected in series by connecting the batteries 1a and 1b in series on the low voltage side and are in contact with the negative electrode of the battery 1a and the positive electrode of the battery 1b. Further, on the high voltage side, the batteries 1c and 1d are connected in series and connected in series, and provided with high voltage side terminals 3h and 3h that are in contact with the negative electrode of the battery 1c and the positive electrode of the battery 1d.

電池接続回路１０において、所定数（４本）より、少ない数（２本）の電池１を接続するとき、少ない数の電池１からの出力を提供するバイパス供給回路２０を備えている。また、所定数の前記電池を接続するとき、バイパス供給回路２０を利用せず、所定数の電池１からの出力を高電圧側供給回路３０より前記電源回路４に供給する。   The battery connection circuit 10 includes a bypass supply circuit 20 that provides an output from a smaller number of batteries 1 when a smaller number (two) of batteries 1 are connected than a predetermined number (four). When a predetermined number of batteries are connected, the output from the predetermined number of batteries 1 is supplied from the high voltage side supply circuit 30 to the power supply circuit 4 without using the bypass supply circuit 20.

電池接続回路１０は、以下の回路構成となっている。バイパス供給回路２０においては、スイッチング素子FET１（ｎチャネル型MOSFET）が、低電圧側端子３ｌ、３ｌ間に抵抗Ｒ１を介して接続され、スイッチング素子FET１のゲートが、プラス高電圧側端子３ｈに抵抗Ｒ２を介して接続されている。プラス低電圧側端子３ｌからの出力は、スイッチング素子FET2（ｐチャネル型MOSFET）、スイッチング素子FET3（ｐチャネル型MOSFET）を通って、電源回路４に出力され、スイッチング素子FET2、スイッチング素子FET3は、各ソースを連結し、抵抗Ｒ３を介して、各ゲートが連結される。これらゲートは、スイッチング素子FET4（ｎチャネル型MOSFET）を通って、マイナス低電圧側端子３ｌであるグランド側に接続されている。スイッチング素子FET4のゲートは、スイッチング素子FET１のドレインと接続されている。     The battery connection circuit 10 has the following circuit configuration. In the bypass supply circuit 20, the switching element FET1 (n-channel MOSFET) is connected between the low voltage side terminals 3l and 3l via the resistor R1, and the gate of the switching element FET1 is resistance to the plus high voltage side terminal 3h. It is connected via R2. The output from the plus low voltage side terminal 3l is output to the power supply circuit 4 through the switching element FET2 (p-channel MOSFET) and the switching element FET3 (p-channel MOSFET). The switching element FET2 and the switching element FET3 are Each source is connected, and each gate is connected through a resistor R3. These gates are connected to the ground side which is the minus low voltage side terminal 3l through the switching element FET4 (n-channel MOSFET). The gate of the switching element FET4 is connected to the drain of the switching element FET1.

また、高電圧供給回路３０においては、図１に示すように、スイッチング素子FET11（ｎチャネル型MOSFET）が、プラス高電圧側端子３ｈと、グランド間に抵抗Ｒ１１を介して接続され、スイッチング素子FET１１のゲートが、プラス高電圧側端子３ｈに抵抗Ｒ１２を介して接続されている。プラス高電圧側端子３ｈからの出力は、スイッチング素子FET12（ｐチャネル型MOSFET）、スイッチング素子FET13（ｐチャネル型MOSFET）を通って、電源回路４に出力され、スイッチング素子FET12、スイッチング素子FET13は、各ソースを連結し、抵抗Ｒ１３を介して、各ゲートが連結される。これらゲートは、スイッチング素子FET11のドレインに接続されている。   Further, in the high voltage supply circuit 30, as shown in FIG. 1, the switching element FET11 (n-channel MOSFET) is connected between the plus high voltage side terminal 3h and the ground via a resistor R11, and the switching element FET11. Is connected to the positive high voltage side terminal 3h via a resistor R12. The output from the positive high voltage side terminal 3h is output to the power supply circuit 4 through the switching element FET12 (p-channel MOSFET) and the switching element FET13 (p-channel MOSFET), and the switching element FET12 and the switching element FET13 are Each source is connected, and each gate is connected through a resistor R13. These gates are connected to the drain of the switching element FET11.

以上の電池接続回路１０のバイパス供給回路２０は、図２に示すように、低電圧側にて、電池１ａ、１ｂを、連結して直列接続し、低電圧側端子３ｌ、３ｌに装着したとき、以下のように、動作する。   As shown in FIG. 2, the bypass supply circuit 20 of the battery connection circuit 10 described above is configured such that the batteries 1a and 1b are connected in series on the low voltage side and connected in series, and attached to the low voltage side terminals 3l and 3l. It operates as follows.

プラス低電圧側端子３ｌに、直列接続した電池１ａ、１ｂの電圧が印加されることで、スイッチング素子FET4のゲート電位が上昇し、スイッチング素子FET4がオン状態となる。これにより、抵抗Ｒ３に電流が流れ、スイッチング素子FET2、スイッチング素子FET3のソース電位に対して、そのゲート電位が低下することにより、ｐチャネル型MOSFETである両素子FET2、FET3はオン状態となり、電池１ａ、１ｂの出力は、電源回路４に供給される。そして、上述のように、電源回路４は、入力電圧約１．０〜６．０Ｖにて動作することができるので、所定数より、少ない２本の電池１ａ、１ｂを電源として、電源回路４は、所定電圧を出力することができる。   When the voltage of the batteries 1a and 1b connected in series is applied to the plus low voltage side terminal 31, the gate potential of the switching element FET4 rises and the switching element FET4 is turned on. As a result, a current flows through the resistor R3, and the gate potential of the switching element FET2 and the switching element FET3 is lowered. As a result, both elements FET2 and FET3, which are p-channel MOSFETs, are turned on. Outputs 1 a and 1 b are supplied to the power supply circuit 4. As described above, since the power supply circuit 4 can operate at an input voltage of about 1.0 to 6.0 V, the power supply circuit 4 uses two batteries 1a and 1b, which are fewer than a predetermined number, as power sources. Can output a predetermined voltage.

また、以上の電池接続回路１０の高電圧供給回路３０は、図１に示すように、低電圧側にて、電池１ａ、１ｂを、連結して直列接続して低電圧側端子３ｌ、３ｌに装着し、高電圧側にて、電池１ｃ、１ｄを、連結して直列接続して高電圧側端子３ｈ、３ｈに装着して、以下のように、動作する。   Further, as shown in FIG. 1, the high voltage supply circuit 30 of the above battery connection circuit 10 connects the batteries 1a and 1b in series on the low voltage side and connects them in series to the low voltage side terminals 3l and 3l. The battery 1c, 1d is connected and connected in series on the high voltage side, and is attached to the high voltage side terminals 3h, 3h, and operates as follows.

また、プラス高電圧側端子３ｈに、直列接続した４本の電池１の電圧が印加されることで、バイパス供給回路２０より、電池出力が、電源回路４に供給することを遮断される。即ち、プラス高電圧側端子３ｈに、直列接続した４本の電池１の電圧が印加されることで、スイッチング素子FET１のゲート電圧が上昇し、スイッチング素子FET1がオン状態となる。これにより、スイッチング素子FET4のゲート電位が低下するので、スイッチング素子FET4がオフ状態となる。これにより、抵抗Ｒ３に電流が流れなくなり、スイッチング素子FET2、スイッチング素子FET3のソース電位に対して、そのゲート電位が同電位となるので、ｐチャネル型MOSFETである両素子FET2、FET3はオフ状態となり、電池１ａ、１ｂの出力供給は、遮断される。よって、電池１ａ、１ｂの出力供給に、バイパス供給回路２０を利用しない。   Further, the voltage of the four batteries 1 connected in series is applied to the plus high voltage side terminal 3 h, whereby the battery output is blocked from being supplied to the power supply circuit 4 by the bypass supply circuit 20. That is, when the voltages of the four batteries 1 connected in series are applied to the positive high voltage side terminal 3h, the gate voltage of the switching element FET1 rises and the switching element FET1 is turned on. As a result, the gate potential of the switching element FET4 is lowered, so that the switching element FET4 is turned off. As a result, no current flows through the resistor R3, and the gate potential is the same as the source potential of the switching element FET2 and switching element FET3, so both elements FET2 and FET3 which are p-channel MOSFETs are turned off. The output supply of the batteries 1a and 1b is cut off. Therefore, the bypass supply circuit 20 is not used for the output supply of the batteries 1a and 1b.

そして、高電圧供給回路３０においては、プラス高電圧側端子３ｌに、直列接続した４本の電池１の電圧が印加されることで、スイッチング素子FET11のゲート電位が上昇し、スイッチング素子FET11がオン状態となる。これにより、抵抗Ｒ１３に電流が流れ、スイッチング素子FET2、スイッチング素子FET3のソース電位に対して、そのゲート電位が低下することにより、ｐチャネル型MOSFETである両素子FET12、FET13はオン状態となり、直列接続された４本の電池１の出力は、電源回路４に供給される。そして、上述のように、電源回路４は、入力電圧約１．０〜６．０Ｖにて動作することができるので、所定数の４本直列の電池１ａ、１ｂ、１ｃ、１ｄを電源として、電源回路４は、所定電圧を出力することができる。上述の２本直列の電池出力よりも、電源回路４は高電圧を入力することができるので、高電圧にて、効率よく、ＤＣ／ＤＣコンバータ（図示せず）を動作して、所定電圧を出力することができる。   In the high voltage supply circuit 30, when the voltage of the four batteries 1 connected in series is applied to the plus high voltage side terminal 31, the gate potential of the switching element FET11 rises and the switching element FET11 is turned on. It becomes a state. As a result, a current flows through the resistor R13, and the gate potential of the switching element FET2 and the switching element FET3 decreases, whereby both elements FET12 and FET13, which are p-channel MOSFETs, are turned on and connected in series. Outputs of the four connected batteries 1 are supplied to the power supply circuit 4. As described above, since the power supply circuit 4 can operate at an input voltage of about 1.0 to 6.0 V, a predetermined number of the four series batteries 1a, 1b, 1c, and 1d are used as a power source. The power supply circuit 4 can output a predetermined voltage. Since the power supply circuit 4 can input a higher voltage than the above-described two battery outputs in series, the DC / DC converter (not shown) can be operated efficiently at a high voltage to obtain a predetermined voltage. Can be output.

次に、本発明の第2実施例について、図３、図４を用いて説明する。上述の第１実施例と同等の構成については、同じ名称、符号を用いて、説明を省略し、図３、図４においては、異なる構造、動作について、説明する。図に示されるように、電池接続回路１１０は、バイパス供給回路１２０、高電圧供給回路１３０を含んでいる。   Next, a second embodiment of the present invention will be described with reference to FIGS. About the structure equivalent to the above-mentioned 1st Example, description is abbreviate | omitted using the same name and code | symbol, and a different structure and operation | movement are demonstrated in FIG. 3, FIG. As shown in the figure, the battery connection circuit 110 includes a bypass supply circuit 120 and a high voltage supply circuit 130.

プラス低電圧側端子３ｌからの出力は、ダイオードからなるバイパス供給回路１２０を介して、電源回路４に供給される。また、プラス高電圧側端子３ｈからの出力は、ダイオードからなる高電圧供給回路１３０を介して、電源回路４に供給される。バイパス供給回路１２０のダイオードからの出力線は、高電圧供給回路１３０のダイオードからの出力線と、分岐点Ｔで接続され、電源回路４に接続される。   The output from the plus low voltage side terminal 3l is supplied to the power supply circuit 4 via the bypass supply circuit 120 made of a diode. The output from the plus high voltage side terminal 3h is supplied to the power supply circuit 4 via the high voltage supply circuit 130 made of a diode. The output line from the diode of the bypass supply circuit 120 is connected to the output line from the diode of the high voltage supply circuit 130 at the branch point T and is connected to the power supply circuit 4.

以上の電池接続回路１１０のバイパス供給回路１２０は、図４に示すように、低電圧側にて、電池１ａ、１ｂを、連結して直列接続し、低電圧側端子３ｌ、３ｌに装着したとき、電池１ａ、１ｂの直列出力を、バイパス供給回路１２０のダイオードを介して、電源回路４に供給する。   As shown in FIG. 4, the bypass supply circuit 120 of the above battery connection circuit 110 is connected when the batteries 1a and 1b are connected and connected in series on the low voltage side and attached to the low voltage side terminals 3l and 3l. The series outputs of the batteries 1a and 1b are supplied to the power supply circuit 4 through the diode of the bypass supply circuit 120.

また、以上の電池接続回路１１０の高電圧供給回路１３０は、図３に示すように、低電圧側にて、電池１ａ、１ｂを連結して直列接続して低電圧側端子３ｌ、３ｌに装着し、高電圧側にて、電池１ｃ、１ｄを、連結して直列接続して高電圧側端子３ｈ、３ｈに装着したとき、電池１ａ、１ｂ、１ｃ、１ｄの直列出力を、高電圧供給回路１３０のダイオードを介して、電源回路４に供給する。ここで、プラス低電圧側端子３ｌの出力は、ダイオードを介して分岐点Ｔにて接続されているが、分岐点４の電位が高電位となっていることより、プラス低電圧側端子３ｌの出力が、バイパス供給回路１２０より供給されることはなく、バイパス供給回路１２０を利用しない。   Further, as shown in FIG. 3, the high voltage supply circuit 130 of the battery connection circuit 110 is connected to the low voltage side terminals 3l and 3l by connecting the batteries 1a and 1b in series on the low voltage side. When the batteries 1c and 1d are connected in series and connected to the high voltage terminals 3h and 3h on the high voltage side, the series outputs of the batteries 1a, 1b, 1c and 1d are connected to the high voltage supply circuit. The power is supplied to the power supply circuit 4 through 130 diodes. Here, the output of the plus low voltage side terminal 3l is connected at the branch point T through a diode. Since the potential of the branch point 4 is high, the plus low voltage side terminal 3l The output is not supplied from the bypass supply circuit 120, and the bypass supply circuit 120 is not used.

以上の第1実施例、第2実施例においては、所定数を４本の電池として、所定数より少ない低電圧側の電池を２本としているが、本実施例を適宜変更することで、所定数を変更したり、所定数より少ない低電圧側に直列にする電池の数を変更することができる。   In the first embodiment and the second embodiment described above, the predetermined number is set to four batteries and the number of batteries on the low voltage side less than the predetermined number is set to two. The number can be changed, or the number of batteries connected in series on the lower voltage side than the predetermined number can be changed.

本発明の第1実施例の回路ブロック図であり、所定数の電池を装着したときを示す。FIG. 3 is a circuit block diagram of the first embodiment of the present invention, showing a state where a predetermined number of batteries are installed. 本発明の第1実施例の回路ブロック図であり、所定数より少ない数の電池を装着したときを示す。FIG. 3 is a circuit block diagram of the first embodiment of the present invention, showing a case where a smaller number of batteries are attached. 本発明の第２実施例の回路ブロック図であり、所定数の電池を装着したときを示す。It is a circuit block diagram of 2nd Example of this invention, and shows when a predetermined number of batteries are mounted | worn. 本発明の第２実施例の回路ブロック図であり、所定数より少ない数の電池を装着したときを示す。It is a circuit block diagram of 2nd Example of this invention, and shows the time of mounting | wearing with the number of batteries less than a predetermined number.

符号の説明Explanation of symbols

Ａ 電池電源（＝緊急充電器）
Ｂ 電子機器（＝携帯電話）
１ 電池
４ 電源回路
１０、１１０ 電池接続回路
２０、１２０ バイパス供給回路
３０、１３０ 高電圧供給回路
A battery power (= emergency charger)
B Electronic equipment (= mobile phone)
DESCRIPTION OF SYMBOLS 1 Battery 4 Power supply circuit 10,110 Battery connection circuit 20,120 Bypass supply circuit 30,130 High voltage supply circuit

Claims (2)

電子機器に直流電力を供給する電池電源であって、
該電池電源内に着脱自在に装着される電池と、該電池からの出力を前記電子機器に供給する電源回路と、前記電池と前記電源回路とを接続する電池接続回路とを備え、
該電池接続回路において、所定数の前記電池を着脱自在に、電気的に直列に、接続可能であって、
前記所定数より、少ない数の前記電池を接続するとき、前記少ない数の前記電池からの出力を提供するバイパス供給回路を備え、
前記所定数の前記電池を接続するとき、前記バイパス供給回路を利用せず、前記所定数の前記電池からの出力を高電圧側供給回路より前記電源回路に供給することを特徴とする電池電源。 A battery power supply for supplying direct current power to electronic equipment,
A battery detachably mounted in the battery power supply, a power supply circuit that supplies output from the battery to the electronic device, and a battery connection circuit that connects the battery and the power supply circuit,
In the battery connection circuit, a predetermined number of the batteries can be detachably and electrically connected in series, and
A bypass supply circuit for providing an output from the small number of the batteries when connecting a smaller number of the batteries than the predetermined number;
When connecting the predetermined number of the batteries, the battery power supply is characterized in that the output from the predetermined number of the batteries is supplied from the high voltage side supply circuit to the power supply circuit without using the bypass supply circuit. 電源回路は、ＤＣ／ＤＣコンバータを含むことを特徴とする請求項１の電池電源。 2. The battery power supply according to claim 1, wherein the power supply circuit includes a DC / DC converter.
JP2005344727A 2005-11-29 2005-11-29 Battery power supply Pending JP2007151348A (en)

Priority Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2000258A2 (en) 2007-06-07 2008-12-10 Nissan Motor Co., Ltd. Honing method and honing control device
WO2012008244A1 (en) * 2010-07-16 2012-01-19 株式会社マキタ Electric power tool using battery pack as power supply thereof, and adapter therefor
DE102012025393A1 (en) * 2012-12-24 2014-06-26 Festool Group Gmbh & Co. Kg Electric device in the form of a hand-held machine tool or a suction device
CN108274436A (en) * 2011-07-24 2018-07-13 株式会社牧田 For the adapter by the battery-powered electric tool that can be dismantled

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2000258A2 (en) 2007-06-07 2008-12-10 Nissan Motor Co., Ltd. Honing method and honing control device
WO2012008244A1 (en) * 2010-07-16 2012-01-19 株式会社マキタ Electric power tool using battery pack as power supply thereof, and adapter therefor
JP2012023911A (en) * 2010-07-16 2012-02-02 Makita Corp Power tool powered by battery pack and adapter therefor
US9337677B2 (en) 2010-07-16 2016-05-10 Makita Corporation Electric power tool powered by battery pack and adapter therefor
CN108274436A (en) * 2011-07-24 2018-07-13 株式会社牧田 For the adapter by the battery-powered electric tool that can be dismantled
CN108274436B (en) * 2011-07-24 2021-08-27 株式会社牧田 Adapter for electric tool and electric tool system
DE102012025393A1 (en) * 2012-12-24 2014-06-26 Festool Group Gmbh & Co. Kg Electric device in the form of a hand-held machine tool or a suction device

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