WO2012001811A1 - 薄膜キャパシタ放電装置 - Google Patents
薄膜キャパシタ放電装置 Download PDFInfo
- Publication number
- WO2012001811A1 WO2012001811A1 PCT/JP2010/061288 JP2010061288W WO2012001811A1 WO 2012001811 A1 WO2012001811 A1 WO 2012001811A1 JP 2010061288 W JP2010061288 W JP 2010061288W WO 2012001811 A1 WO2012001811 A1 WO 2012001811A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film capacitor
- thin film
- thin
- discharge
- discharging apparatus
- Prior art date
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Classifications
-
- 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
-
- 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
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/322—Means for rapidly discharging a capacitor of the converter for protecting electrical components or for preventing electrical shock
Definitions
- the present invention relates to a thin film capacitor discharge 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 of electric vehicles, and large-capacity products for replacing storage batteries for power storage 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 used in series in applications requiring a high voltage.
- An object of the present invention is to provide a thin film capacitor discharge device that can be performed with an inexpensive configuration when performing smooth conversion of an inverter until the amount of stored electricity becomes zero when the thin film capacitor is discharged.
- a thin film capacitor discharge device for discharging a thin film capacitor used in a DC circuit, receiving a direct current while the voltage drops from the thin film capacitor, temporarily storing electric charge, and having a base voltage in a DC / DC inverter.
- a thin film capacitor discharge device having a discharge effect until the amount of stored electricity in the thin film capacitor is completely eliminated by a hybrid system that supplies a direct current.
- FIG. 1 is a circuit in which the thin film capacitor 2 and the DC / DC inverter 4 are directly connected as described above, and in a situation where conversion is not performed at a current equal to or less than the threshold value of the inverter, and thus it cannot be effectively discharged. there were.
- symbol SW1 is an operation switch.
- FIG. 2 is a circuit diagram 1 showing an outline of the thin film capacitor discharge device according to the present embodiment.
- an auxiliary capacitor 3 is attached, and inverter conversion is performed until the amount of charge in the thin film capacitor 2 becomes zero. Is to do.
- reference numeral 4 is a DC / DC inverter
- SW1 is an operation switch.
- FIG. 3 compares the inverter conversion state without the auxiliary capacitor 3 and the inverter conversion state of this embodiment with the auxiliary capacitor 3 attached.
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。
これを平坦な出力とするためにインバータを用いるがキャパシタ出力が閾値より低下すれば変換を行えなくなる。
そのため閾値をあげるために少なくとも閾値と同等以上の容量を擁するキャパシタをハイブリッド的に付設して平滑化を行うことにより蓄電キャパシタの蓄電量が0になるまで放電を可能とする。
一般ではキャパシタの充放電に関する技術としては、例えば特許文献1に開示されたものがある。
直流回路に用いられる薄膜キャパシタの放電を行う薄膜キャパシタ放電装置であって、薄膜キャパシタより電圧下降しながらの直流電流を受けて一時的に電荷を蓄積しDC/DCインバータにベース電圧のある状態で直流電流を供給するハイブリッド式で薄膜キャパシタ蓄電量が完全になくなるまで放電効果を有する薄膜キャパシタ放電装置とした。
2 薄膜キャパシタ
3 補助キャパシタ
4 DC/DCインバータ
SW1 操作スイッチ
図1は、前述のように、薄膜キャパシタ2とDC/DCインバータ4とを直接接続した回路であり、インバータの閾値以下の電流では変換が行われなく、効果的に放電することができない状況にあった。
図中、符号SW1は操作スイッチである。
図中、符号4はDC/DCインバータであり、SW1は操作スイッチである。
この発明は上記実施例に限定されるものではなく、その要旨を変更しない範囲で種々設計変更しうる。
Claims (1)
- 直流回路に用いられる薄膜キャパシタの放電を行う薄膜キャパシタ放電装置であって、
薄膜キャパシタより電圧下降しながらの直流電流を受けて一時的に電荷を蓄積しDC/DCインバータにベース電圧のある状態で直流電流を供給するハイブリッド式で薄膜キャパシタ蓄電量が完全になくなるまで放電効果を有することを特徴とする薄膜キャパシタ放電装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080067897.XA CN103503271A (zh) | 2010-07-01 | 2010-07-01 | 薄膜电容器放电装置 |
JP2011554302A JPWO2012001811A1 (ja) | 2010-07-01 | 2010-07-01 | 薄膜キャパシタ放電装置 |
EP10854108.7A EP2590295A1 (en) | 2010-07-01 | 2010-07-01 | Thin-film capacitor discharging apparatus |
US13/807,861 US20130169240A1 (en) | 2010-07-01 | 2010-07-01 | Thin-film capacitor discharging apparatus |
PCT/JP2010/061288 WO2012001811A1 (ja) | 2010-07-01 | 2010-07-01 | 薄膜キャパシタ放電装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/061288 WO2012001811A1 (ja) | 2010-07-01 | 2010-07-01 | 薄膜キャパシタ放電装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012001811A1 true WO2012001811A1 (ja) | 2012-01-05 |
Family
ID=45401564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/061288 WO2012001811A1 (ja) | 2010-07-01 | 2010-07-01 | 薄膜キャパシタ放電装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130169240A1 (ja) |
EP (1) | EP2590295A1 (ja) |
JP (1) | JPWO2012001811A1 (ja) |
CN (1) | CN103503271A (ja) |
WO (1) | WO2012001811A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09308104A (ja) * | 1996-05-20 | 1997-11-28 | Shin Kobe Electric Mach Co Ltd | 電源装置 |
JPH11150875A (ja) * | 1997-11-12 | 1999-06-02 | Nec Corp | 二次電池ユニット |
JP2006246609A (ja) * | 2005-03-03 | 2006-09-14 | Meidensha Corp | 瞬時電圧低下補償装置の放電方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05292683A (ja) * | 1992-04-03 | 1993-11-05 | Jeol Ltd | 動力用蓄電電源装置 |
JP2003333832A (ja) * | 2002-05-13 | 2003-11-21 | Nippon Soken Inc | 等価直列抵抗補正回路およびピエゾアクチュエータ駆動回路 |
DE102005023171A1 (de) * | 2004-05-28 | 2005-12-22 | Harison Toshiba Lighting Corp. | Lichtvorrichtung für Entladungslampen |
WO2006081613A1 (en) * | 2005-02-02 | 2006-08-10 | Cap-Xx Limited | A power supply |
ES2340074T3 (es) * | 2007-02-08 | 2010-05-28 | Sma Solar Technology Ag | Dispositivo para la alimentacion de energia electrica proveniente de una fuente de energia. |
US7994756B2 (en) * | 2007-05-11 | 2011-08-09 | Nokia Corporation | Power distribution circuit for use in a portable telecommunications device |
TW201034562A (en) * | 2009-03-18 | 2010-10-01 | Lite On Technology Corp | Photovoltaic greenhouse structure |
JP5505428B2 (ja) * | 2010-01-25 | 2014-05-28 | トヨタ自動車株式会社 | 電力制御ユニットおよび電力制御ユニットの制御方法 |
-
2010
- 2010-07-01 US US13/807,861 patent/US20130169240A1/en not_active Abandoned
- 2010-07-01 EP EP10854108.7A patent/EP2590295A1/en not_active Withdrawn
- 2010-07-01 JP JP2011554302A patent/JPWO2012001811A1/ja active Pending
- 2010-07-01 WO PCT/JP2010/061288 patent/WO2012001811A1/ja active Application Filing
- 2010-07-01 CN CN201080067897.XA patent/CN103503271A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09308104A (ja) * | 1996-05-20 | 1997-11-28 | Shin Kobe Electric Mach Co Ltd | 電源装置 |
JPH11150875A (ja) * | 1997-11-12 | 1999-06-02 | Nec Corp | 二次電池ユニット |
JP2006246609A (ja) * | 2005-03-03 | 2006-09-14 | Meidensha Corp | 瞬時電圧低下補償装置の放電方法 |
Also Published As
Publication number | Publication date |
---|---|
CN103503271A (zh) | 2014-01-08 |
EP2590295A1 (en) | 2013-05-08 |
US20130169240A1 (en) | 2013-07-04 |
JPWO2012001811A1 (ja) | 2013-08-22 |
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