WO2012001810A1 - 薄膜キャパシタ充電装置 - Google Patents
薄膜キャパシタ充電装置 Download PDFInfo
- Publication number
- WO2012001810A1 WO2012001810A1 PCT/JP2010/061287 JP2010061287W WO2012001810A1 WO 2012001810 A1 WO2012001810 A1 WO 2012001810A1 JP 2010061287 W JP2010061287 W JP 2010061287W WO 2012001810 A1 WO2012001810 A1 WO 2012001810A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thin film
- film capacitor
- charging
- series
- direct current
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
- H02M3/072—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps adapted to generate an output voltage whose value is lower than the input voltage
Definitions
- the present invention relates to a thin film capacitor charging device.
- a thin film capacitor uses electric energy accumulated in a current collector formed at an interface between an electrode material and a dielectric, and is a large capacity capacitor that can instantaneously charge and discharge an electric capacity of several thousand farads. It can be used in a wide range of applications, from small-capacity products for memory backup, to medium-capacity products for power assist for electric vehicles, and large-capacity products for replacing power storage batteries such as power supply for electric vehicles.
- the withstand voltage of a unit capacitor (also referred to as a cell) of such a thin film capacitor is determined by the withstand voltage of a dielectric that is a constituent element thereof, that is, an insulator that separates electrons and holes, and material, thin film thickness, uniformity, etc.
- a dielectric that is a constituent element thereof, that is, an insulator that separates electrons and holes, and material, thin film thickness, uniformity, etc.
- a barium titanate dielectric it is about 200V.
- a thin film capacitor may be damaged when a voltage higher than the withstand voltage of the dielectric is applied, a plurality of unit capacitors are connected in series in an application requiring a high voltage.
- the structure of a thin film capacitor is a flat plate type in which electrodes, current collectors and dielectrics are formed in a flat plate shape.
- a bipolar structure in which electrodes and dielectrics are alternately stacked can be used for high voltage applications. Suitable for.
- a unit having a withstand voltage of 400 V class in which 40 to 50 cells are stacked has been developed.
- modules in which units are combined in parallel and in series are applied.
- the thin film capacitor C Since the thin film capacitor C is good at steep charge and discharge, it is often used for a DC load that requires a large current in a short time. On the other hand, at the time of charging, a large current is supplied to each single capacitor, and rapid charging becomes possible. At the time of charging, a resistor R1 suitable for the characteristics is attached to each thin film capacitor to adjust it to an optimum voltage, and charging is performed in a form in which destruction due to overvoltage is suppressed.
- Patent Document 1 JP 2004-215332 A
- an object of the present invention is to provide a thin film capacitor charging apparatus capable of preventing an excessive current at the time of initial charging of a thin film capacitor with an inexpensive configuration.
- a thin film capacitor charging device for charging a thin film capacitor used in a direct current circuit, the direct current power source supplying a direct current to the thin film capacitor, and being connected in series to the thin film capacitor and supplied from the direct current power source to the thin film capacitor.
- the direct current power source supplying a direct current to the thin film capacitor, and being connected in series to the thin film capacitor and supplied from the direct current power source to the thin film capacitor.
- a resistor as a current limiting means for limiting the current value of the direct current and a system selection switch provided in series with each thin film capacitor.
- Resistors that suppress excessive current and individual thin film capacitors are connected during charging, and charging can be performed in parallel with individual capacitors.
- each thin film capacitor is connected in series to obtain the required voltage and current. It is characterized by.
- the present invention is based on the point that the thin film capacitor can be optimally charged, and is optimally controlled by each system at the time of discharging.
- the thin film capacitor charging device by connecting an overcurrent prevention circuit in series to a thin film capacitor applied to a DC circuit, when the thin film capacitor is initially charged, first, a resistor, a thin film The current flows to the capacitor, and the current flowing to the thin film capacitor can be suppressed by the resistor.
- the operation switch is turned off to complete the initial charging. Accordingly, the initial charging of the thin film capacitor can be performed without using an expensive device such as a charging circuit to which a constant current control function is added. Therefore, an excessive current flowing into the thin film capacitor during the initial charging can be prevented with an inexpensive configuration. It was.
- FIG. 1 is a circuit diagram illustrating a schematic configuration of a thin film capacitor charging device according to Embodiment 1.
- FIG. 1 is a circuit diagram illustrating a schematic configuration of a thin film capacitor charging device according to Embodiment 1.
- FIG. 1 is a circuit diagram showing an outline of a charging apparatus using three thin film capacitors according to this embodiment.
- charging is started and stopped by switching the operation switch SW1 from a DC power source DC (for example, 100 V).
- a DC power source DC for example, 100 V.
- First to third resistors R1 to R3 for limiting currents are directly connected to the first to third thin film capacitors C1 to C3, respectively.
- the system changeover switches SW11 to SW16 directly connected to the first to third thin film capacitors C1 to C3 are connected in parallel by selection on the contact A side, and are connected in series by selection on the contact B side.
- the operation switch SW2 which is a discharge side switch is turned off, the first to third thin film capacitors C1 to C3 are selected in parallel connection, and the operation switch SW1 which is a charging switch is turned on.
- the first to third thin film capacitors C1 to C3 are auxiliary resistors, and the first to third resistors R1 to R3 are connected in series with the first to third thin film capacitors C1 to C3. This prevents an excessive current during the initial charging of the thin film capacitors C1 to C3.
- the operation switch SW1 at the time of charging is turned off, and the B switch side, that is, the first to third thin film capacitors C1 to C3 are selected to the discharge side for series connection by the system changeover switches SW11 to SW16.
- the operation switch SW2 is turned on, the first to third thin film capacitors C1 to C3 are joined in series and can operate as a capacitor power source.
- the present invention can be used for a thin film capacitor charging device applied to a DC circuit.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
用途としては、メモリバックアップ用の小容量品から、電気自動車のパワーアシスト用としての中容量品、そして電気自動車のパワー供給などの電力貯蔵用蓄電池代替としての大容量品まで幅広く利用可能である。
なお、薄膜キャパシタは、誘電体の耐電圧以上の電圧を印加すると破損する虞があるため、高電圧を要求される用途においては、複数個の単位キャパシタを直列接続して用いる。
例えば、平板型構造の薄膜キャパシタでは、40~50セル積層した耐電圧400Vクラスのユニットが開発されている。
なお、中容量、大容量の電力貯蓄用途では、ユニットを並列、直列に組み合わせたモジュールが適用される。
一方充電時には単体キャパシタにそれぞれ大電流が供給され急速な充電が可能となる。
充電時には個々の薄膜キャパシタに特性に合わせた抵抗R1を付設し最適な電圧に調整して過電圧による破壊を抑えた形態で充電を行う。
そのため従来は定電流制御機能を付加した充電回路(図示省略)を設けており、装置が高価なものになっていた。
直流回路に用いられる薄膜キャパシタの充電を行う薄膜キャパシタ充電装置であって、前記薄膜キャパシタに直流電流を供給する直流電源と、前記薄膜キャパシタに直列接続されて前記直流電源から前記薄膜キャパシタに供給される直流電流の電流値を制限する電流制限手段としての抵抗器と、各薄膜キャパシタに直列に付設した系統選択スイッチにより充電時の並列接続か放電時の直列接続かの選択を行える回路とした。
充電時には過大電流を抑制する抵抗器と個々の薄膜キャパシタが接続され、個々のキャパシタに並列に充電が行え、放電時には抵抗とは関係なく各薄膜キャパシタが直列接続され必要な電圧、電流を得ることを特徴とする。
従って、定電流制御機能を付加した充電回路などの高価な装置を使用することなく薄膜キャパシタの初期充電が行えるため、初期充電時に薄膜キャパシタに流れ込む過大電流を安価な構成で防ぐことが可能になった。
2 電流計
3 電圧計
C1~C3 第1~第3薄膜キャパシタ
DC 直流電源
R1~R3 第1~第3抵抗器
SW1、SW2 操作スイッチ
SW11~SW16 系統切替スイッチ
図1は本実施例に係る薄膜キャパシタを3個使用した充電装置の概略を示す回路図である。
各第1~第3薄膜キャパシタC1~C3にはそれぞれの電流を制限する第1~第3抵抗器R1~R3が直接接続されている。
また各第1~第3薄膜キャパシタC1~C3に直接接続された系統切替スイッチSW11~SW16により、接点A側の選択で各並列接続し、接点B側の選択で直列接続を行う回路とした。
Claims (1)
- 直流回路に用いられる薄膜キャパシタの充電を行う薄膜キャパシタ充電装置であって、
前記薄膜キャパシタに直流電流を供給する直流電源と、
前記薄膜キャパシタに直列接続されて前記直流電源から前記薄膜キャパシタに供給される直流電流の電流値を制限する抵抗器と、
薄膜キャパシタに接続され、並列と直列の選択を行う系統切替スイッチにより全薄膜キャパシタを充電時の電流を制限する抵抗に接続し並列で充電を可能とし、放電時には全薄膜キャパシタが直列に接続して放電を行えることを特徴とする薄膜キャパシタ充電装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/807,900 US20130154580A1 (en) | 2010-07-01 | 2010-07-01 | Apparatus for charging thin-film capacitors |
CN2010800677534A CN103155338A (zh) | 2010-07-01 | 2010-07-01 | 薄膜电容器充电装置 |
EP10854107.9A EP2590294A1 (en) | 2010-07-01 | 2010-07-01 | Apparatus for charging thin film capacitor |
JP2012522409A JPWO2012001810A1 (ja) | 2010-07-01 | 2010-07-01 | 薄膜キャパシタ充電装置 |
PCT/JP2010/061287 WO2012001810A1 (ja) | 2010-07-01 | 2010-07-01 | 薄膜キャパシタ充電装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/061287 WO2012001810A1 (ja) | 2010-07-01 | 2010-07-01 | 薄膜キャパシタ充電装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012001810A1 true WO2012001810A1 (ja) | 2012-01-05 |
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ID=45401563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2010/061287 WO2012001810A1 (ja) | 2010-07-01 | 2010-07-01 | 薄膜キャパシタ充電装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130154580A1 (ja) |
EP (1) | EP2590294A1 (ja) |
JP (1) | JPWO2012001810A1 (ja) |
CN (1) | CN103155338A (ja) |
WO (1) | WO2012001810A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2023145741A1 (ja) * | 2022-01-27 | 2023-08-03 | 日本ゼオン株式会社 | 昇圧回路及び昇圧システム |
Families Citing this family (3)
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---|---|---|---|---|
CN105011775A (zh) * | 2015-08-18 | 2015-11-04 | 王金春 | 一种低功耗节能热水装置 |
DE102019203122A1 (de) * | 2019-03-07 | 2020-09-10 | Vitesco Technologies GmbH | Schaltungseinrichtung zum Anschluss einer Last an ein Versorgungsnetz, Verfahren und Vorrichtung zum Betreiben einer Schaltungseinrichtung |
CN110994760B (zh) * | 2019-12-10 | 2021-01-29 | 珠海格力电器股份有限公司 | 一种新能源发电的储能装置管理电路及其控制方法 |
Citations (4)
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---|---|---|---|---|
JPH0279730A (ja) * | 1988-09-14 | 1990-03-20 | Matsushita Electric Ind Co Ltd | 二次電池電源装置 |
JP2006014589A (ja) * | 2004-06-21 | 2006-01-12 | Inventio Ag | エネルギー貯蔵モジュール中での過電圧を制限する回路構成 |
JP2006320077A (ja) * | 2005-05-11 | 2006-11-24 | Nec Engineering Ltd | Usb機器給電回路 |
JP3147685U (ja) * | 2008-10-27 | 2009-01-15 | 株式会社ゼニス計測システム | 充放電回路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US7342755B1 (en) * | 2005-01-26 | 2008-03-11 | Horvat Branimir L | High energy capacitor and charging procedures |
CN101149132A (zh) * | 2006-09-20 | 2008-03-26 | 汤征宁 | 一种太阳能led电筒 |
US8570151B2 (en) * | 2007-01-10 | 2013-10-29 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device |
CN101051754A (zh) * | 2007-05-12 | 2007-10-10 | 包宣平 | 电动车蓄电池全自动串并联转换均衡充电装置 |
CN101599652A (zh) * | 2009-04-08 | 2009-12-09 | 浙江绿源电动车有限公司 | 蓄电池组的均衡充电方法 |
-
2010
- 2010-07-01 EP EP10854107.9A patent/EP2590294A1/en not_active Withdrawn
- 2010-07-01 US US13/807,900 patent/US20130154580A1/en not_active Abandoned
- 2010-07-01 JP JP2012522409A patent/JPWO2012001810A1/ja active Pending
- 2010-07-01 CN CN2010800677534A patent/CN103155338A/zh active Pending
- 2010-07-01 WO PCT/JP2010/061287 patent/WO2012001810A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0279730A (ja) * | 1988-09-14 | 1990-03-20 | Matsushita Electric Ind Co Ltd | 二次電池電源装置 |
JP2006014589A (ja) * | 2004-06-21 | 2006-01-12 | Inventio Ag | エネルギー貯蔵モジュール中での過電圧を制限する回路構成 |
JP2006320077A (ja) * | 2005-05-11 | 2006-11-24 | Nec Engineering Ltd | Usb機器給電回路 |
JP3147685U (ja) * | 2008-10-27 | 2009-01-15 | 株式会社ゼニス計測システム | 充放電回路 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023145741A1 (ja) * | 2022-01-27 | 2023-08-03 | 日本ゼオン株式会社 | 昇圧回路及び昇圧システム |
Also Published As
Publication number | Publication date |
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JPWO2012001810A1 (ja) | 2013-08-22 |
US20130154580A1 (en) | 2013-06-20 |
CN103155338A (zh) | 2013-06-12 |
EP2590294A1 (en) | 2013-05-08 |
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