JP5698626B2 - ワイヤレス受電装置、ワイヤレス給電装置およびワイヤレス給電システム - Google Patents
ワイヤレス受電装置、ワイヤレス給電装置およびワイヤレス給電システム Download PDFInfo
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- JP5698626B2 JP5698626B2 JP2011185938A JP2011185938A JP5698626B2 JP 5698626 B2 JP5698626 B2 JP 5698626B2 JP 2011185938 A JP2011185938 A JP 2011185938A JP 2011185938 A JP2011185938 A JP 2011185938A JP 5698626 B2 JP5698626 B2 JP 5698626B2
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- 239000003990 capacitor Substances 0.000 claims description 84
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- 230000005672 electromagnetic field Effects 0.000 claims description 13
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- 230000014509 gene expression Effects 0.000 description 6
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- 230000015556 catabolic process Effects 0.000 description 3
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- 230000000694 effects Effects 0.000 description 3
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- 230000005674 electromagnetic induction Effects 0.000 description 2
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- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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Description
同様に、「部材Cが、部材Aと部材Bの間に設けられた状態」とは、部材Aと部材C、あるいは部材Bと部材Cが直接的に接続される場合のほか、それらの電気的な接続状態に実質的な影響を及ぼさない、あるいはそれらの結合により奏される機能や効果を損なわせない、その他の部材を介して間接的に接続される場合も含む。
図2は、第1の実施の形態に係るワイヤレス給電システム100の構成を示す回路図である。ワイヤレス給電システム100は、ワイヤレス給電装置200およびワイヤレス受電装置300を備える。
共振用キャパシタCTは、送信コイルLT1と直列に設けられ、共振用キャパシタCTおよび送信コイルLT1で構成される共振回路の共振周波数f0を送信周波数f1にチューニングする。
CT=CT1・(d・CTV1+CTV2)/{CT1+(d・CTV1+CTV2)} …(1)
図4は、第2の実施の形態に係るワイヤレス給電システム100aの構成を示す回路図である。
第1の実施の形態では、共振回路の容量値を変化させることにより、共振周波数を調節する場合を説明した。第2の実施の形態では、共振回路のインダクタンスを変化させることにより、共振周波数を調節する技術を説明する。
補助コイルLTV1および共振用キャパシタCTは、送信コイルLT1と直列に設けられる。スイッチSWTは、補助コイルLTV1と並列に設けられる。制御部12は、電力信号S1の周波数f1に応じたデューティ比dでスイッチSWTのオン、オフを制御する。
L=d・LTV1+LT1 …(4)
f0=1/[2π√{d・LTV1+LT1)・CT}] …(5)
ワイヤレス受電装置300aについても同様である。
図5は、第3の実施の形態に係るワイヤレス給電システム100bの構成を示す回路図である。
ワイヤレス給電装置200bは、交流電源10、共振用キャパシタCT1、送信コイルLT1、第1補助コイルLT2、第2補助コイルLT3、第1キャパシタCTV1、第2キャパシタCTV2、スイッチSWT、制御部12を備える。
Claims (14)
- ワイヤレス給電装置から送出される電界、磁界、電磁界のいずれかを含む電力信号を受信するワイヤレス受電装置であって、
前記電力信号を受信するための受信コイルと、
前記受信コイルと直列に設けられた第1キャパシタと、
前記第1キャパシタと並列な経路に直列に設けられたスイッチおよび第2キャパシタと、
前記電力信号の周波数に応じたデューティ比で前記スイッチのオン、オフを制御する制御部と、
を備え、
前記制御部は、前記受信コイルに流れる電流の振幅が、前記スイッチのオン期間において最大となるように、前記スイッチを制御することを特徴とするワイヤレス受電装置。 - 前記受信コイルおよび前記第1キャパシタと直列に設けられた第3キャパシタをさらに備えることを特徴とする請求項1に記載のワイヤレス受電装置。
- ワイヤレス給電装置から送出される電界、磁界、電磁界のいずれかを含む電力信号を受信するワイヤレス受電装置であって、
前記電力信号を受信するための受信コイルと、
前記受信コイルと直列に設けられた補助コイルおよびキャパシタと、
前記補助コイルと並列に設けられたスイッチと、
前記電力信号の周波数に応じたデューティ比で前記スイッチのオン、オフを制御する制御部と、
を備え、
前記制御部は、前記受信コイルに流れる電流の振幅が、前記スイッチのオン期間において最大となるように、前記スイッチを制御することを特徴とするワイヤレス受電装置。 - ワイヤレス給電装置から送出される電界、磁界、電磁界のいずれかを含む電力信号を受信するワイヤレス受電装置であって、
前記電力信号を受信するための受信コイルと、
前記受信コイルと直列に設けられた第1補助コイルおよび第1キャパシタと、
前記第1補助コイルとコアを共通とする第2補助コイルと、
前記第2補助コイルと閉ループを形成するように直列に設けられた第2、第3キャパシタと、
前記第3キャパシタと並列に設けられたスイッチと、
前記電力信号の周波数に応じたデューティ比で前記スイッチのオン、オフを制御する制御部と、
を備えることを特徴とするワイヤレス受電装置。 - 前記制御部は、前記受信コイルに流れる電流と同期して前記スイッチを制御することを特徴とする請求項4に記載のワイヤレス受電装置。
- 前記制御部は、前記受信コイルに流れる電流の振幅が最大となるタイミングがオン期間となるように、前記スイッチを制御することを特徴とする請求項4または5に記載のワイヤレス受電装置。
- 電界、磁界、電磁界のいずれかを含む電力信号を送信するワイヤレス給電装置であって、
前記電力信号を送出するための送信コイルと、
前記送信コイルと直列に設けられた第1キャパシタと、
前記第1キャパシタと並列な経路に直列に設けられたスイッチおよび第2キャパシタと、
前記電力信号の周波数に応じたデューティ比で前記スイッチのオン、オフを制御する制御部と、
を備え、
前記制御部は、前記送信コイルに流れる電流の振幅が最大となるタイミングがオン期間となるように、前記スイッチを制御することを特徴とするワイヤレス給電装置。 - 前記送信コイルおよび前記第1キャパシタと直列に設けられた第3キャパシタをさらに備えることを特徴とする請求項7に記載のワイヤレス給電装置。
- 電界、磁界、電磁界のいずれかを含む電力信号を送信するワイヤレス給電装置であって、
前記電力信号を送出するための送信コイルと、
前記送信コイルと直列に設けられた補助コイルおよびキャパシタと、
前記補助コイルと並列に設けられたスイッチと、
前記電力信号の周波数に応じたデューティ比で前記スイッチのオン、オフを制御する制御部と、
を備え、
前記制御部は、前記送信コイルに流れる電流の振幅が最大となるタイミングがオン期間となるように、前記スイッチを制御することを特徴とするワイヤレス給電装置。 - 電界、磁界、電磁界のいずれかを含む電力信号を送信するワイヤレス給電装置であって、
前記電力信号を送出するための送信コイルと、
前記送信コイルと直列に設けられた第1補助コイルおよび第1キャパシタと、
前記第1補助コイルとコアを共通とする第2補助コイルと、
前記第2補助コイルと閉ループを形成するように直列に設けられた第2、第3キャパシタと、
前記第3キャパシタと並列に設けられたスイッチと、
前記電力信号の周波数に応じたデューティ比で前記スイッチのオン、オフを制御する制御部と、
を備えることを特徴とするワイヤレス給電装置。 - 前記制御部は、前記送信コイルに流れる電流と同期して前記スイッチを制御することを特徴とする請求項10に記載のワイヤレス給電装置。
- 前記制御部は、前記送信コイルに流れる電流の振幅が最大となるタイミングがオン期間となるように、前記スイッチを制御することを特徴とする請求項10または11に記載のワイヤレス給電装置。
- 電界、磁界、電磁界のいずれかを含む電力信号を送信するワイヤレス給電装置と、
前記電力信号を受信する請求項1から6のいずれかに記載のワイヤレス受電装置と、
を備えることを特徴とするワイヤレス給電システム。 - 電界、磁界、電磁界のいずれかを含む電力信号を送信する請求項7から12のいずれかに記載のワイヤレス給電装置と、
前記電力信号を受信するワイヤレス受電装置と、
を備えることを特徴とするワイヤレス給電システム。
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US37969210P | 2010-09-02 | 2010-09-02 | |
US61/379,692 | 2010-09-02 | ||
US13/218,295 | 2011-08-25 | ||
US13/218,295 US9071063B2 (en) | 2010-09-02 | 2011-08-25 | Wireless power receiving apparatus |
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JP2012055157A JP2012055157A (ja) | 2012-03-15 |
JP5698626B2 true JP5698626B2 (ja) | 2015-04-08 |
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