JP6266661B2 - 寄生共振タンクを備える電子デバイスに対するワイヤレス電力送信 - Google Patents
寄生共振タンクを備える電子デバイスに対するワイヤレス電力送信 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/248—Supports; Mounting means by structural association with other equipment or articles with receiving set provided with an AC/DC converting device, e.g. rectennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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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
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- 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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- 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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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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
- H02J50/50—Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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- 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
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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Description
以下に、本願出願の当初の特許請求の範囲に記載された発明を付記する。
[C1]
ワイヤレス電力受信機において、
近磁界からワイヤレス電力を受信するように構成されている受信アンテナを具備し、
前記受信アンテナは、
共振タンクと、
前記共振タンクにワイヤレスに結合されている寄生共振タンクとを備えるワイヤレス電力受信機。
[C2]
前記共振タンクは、前記受信アンテナが、前記近磁界を発生させている送信機から、第1の距離より小さく離れている近接内にあるときに、前記近磁界に結合する[C1記載のワイヤレス電力受信機。
[C3]
前記寄生共振タンクは、前記受信アンテナが、前記送信機から、前記距離より大きく離れている近傍内にあるときに、前記近磁界に結合する[C2記載のワイヤレス電力受信機。
[C4]
前記寄生共振タンクは、受信したワイヤレス電力を直列構成共振タンクに誘導結合する[C3記載のワイヤレス電力受信機。
[C5]
前記寄生共振タンクは、前記共振タンクより大きいQ値を有する高Q共振器である[C1記載のワイヤレス電力受信機。
[C6]
ワイヤレス電力送信機において、
ワイヤレス電力の送信のために、近磁界を発生させるように構成されている送信アンテナを具備し、
前記送信アンテナは、
共振タンクと、
前記共振タンクにワイヤレスに結合されている寄生共振タンクとを備えるワイヤレス電力送信機。
[C7]
前記共振タンクは、前記送信アンテナが、前記近磁界から前記ワイヤレス電力を受信する受信機から、第1の距離より小さく離れている近接内にあるときに、前記近磁界を発生させる[C6記載のワイヤレス電力送信機。
[C8]
前記寄生共振タンクは、前記送信アンテナが、前記受信機から、前記距離より大きく離れている近傍内にあるときに、前記近磁界を発生させる[C7記載のワイヤレス電力送信機。
[C9]
前記共振タンクは、前記ワイヤレス電力を前記寄生共振タンクに誘導結合する[C8記載のワイヤレス電力送信機。
[C10]
前記寄生共振タンクは、前記共振タンクより大きいQ値を有する高Q共振器である[C6記載のワイヤレス電力送信機。
[C11]
ワイヤレス電力送信システムにおいて、
ワイヤレス電力の送信のために、近磁界を発生させる送信アンテナを備え、前記送信アンテナは、第1の共振タンクを含む送信機と、
前記送信アンテナと結合して、前記近磁界から前記ワイヤレス電力を受信する受信アンテナを備え、前記受信アンテナは、第2の共振タンクを含む受信機と、
前記第1の共振タンクおよび前記第2の共振タンクのうちの1つにワイヤレスに結合されている第1の寄生共振タンクとを具備するワイヤレス電力送信システム。
[C12]
前記第1の共振タンクおよび前記第2の共振タンクのうちの別の1つにワイヤレスに結合されている第2の寄生共振タンクをさらに具備する[C11記載のワイヤレス電力送信システム。
[C13]
前記第1の共振タンクおよび前記第2の共振タンクは、前記送信アンテナが、前記受信アンテナから第1の距離より小さく離れている近接内にあるときに、前記第1の共振タンクと前記第2の共振タンクとの間での前記ワイヤレス電力送信のために構成されている[C12記載のワイヤレス電力送信システム。
[C14]
前記第1の寄生共振タンクおよび前記第2の寄生共振タンクは、前記送信アンテナが、前記受信アンテナから前記距離より大きく離れている近傍内にあるときに、前記第1の寄生共振タンクと前記第2の寄生共振タンクとの間での前記ワイヤレス電力送信のために構成されている[C13記載のワイヤレス電力送信システム。
[C15]
前記第1の共振タンクおよび前記第2の共振タンクのうちの前記1つが、前記第1の寄生共振タンクに前記ワイヤレス電力を誘導結合する[C11記載のワイヤレス電力送信システム。
[C16]
ワイヤレス電力を受信するための方法において、
受信アンテナおよび送信アンテナが、ある距離より小さく離れている近接内にあるときに、前記送信アンテナにより発生された近磁界中のワイヤレス電力を前記受信アンテナの共振タンクにおいて受信することと、
前記受信アンテナおよび前記送信アンテナが、前記距離より大きく離れている近傍内にあるときに、前記送信アンテナにより発生された前記近磁界の前記ワイヤレス電力を前記受信アンテナの寄生共振タンクにおいて受信することと、
前記ワイヤレス電力を整流することとを含む方法。
[C17]
前記受信アンテナおよび前記送信アンテナが、前記距離より大きく離れている近傍内にあるときに、前記寄生共振タンクからの前記ワイヤレス電力を前記共振タンクに誘導結合することをさらに含む[C16記載のワイヤレス電力を受信するための方法。
[C18]
前記寄生共振タンクは、前記共振タンクより大きいQ値を有する高Q共振器である[C16記載のワイヤレス電力を受信するための方法。
[C19]
ワイヤレス電力を送信するための方法において、
受信アンテナおよび送信アンテナが、ある距離より小さく離れている近接内にあるときに、近磁界中のワイヤレス電力を前記送信アンテナの共振タンクにおいて発生させることと、
前記受信アンテナおよび前記送信アンテナが、前記距離より大きく離れている近傍内にあるときに、前記近磁界の前記ワイヤレス電力を前記送信アンテナの寄生共振タンクにおいて発生させることとを含む方法。
[C20]
前記受信アンテナおよび前記送信アンテナが、前記距離より大きく離れている近傍内にあるときに、前記共振タンクからの前記ワイヤレス電力を前記寄生共振タンクに誘導結合することをさらに含む[C19記載のワイヤレス電力を送信するための方法。
[C21]
前記寄生共振タンクは、前記共振タンクより大きいQ値を有する高Q共振器である[C19記載のワイヤレス電力を送信するための方法。
[C22]
ワイヤレス電力受信機において、
受信アンテナおよび送信アンテナが、ある距離より小さく離れている近接内にあるときに、前記送信アンテナにより発生された近磁界中のワイヤレス電力を受信アンテナの共振タンクにおいて受信する手段と、
前記受信アンテナおよび前記送信アンテナが、前記距離より大きく離れている近傍内にあるときに、前記送信アンテナにより発生された前記近磁界の前記ワイヤレス電力を前記受信アンテナの寄生共振タンクにおいて受信する手段と、
前記ワイヤレス電力を整流する手段とを具備するワイヤレス電力受信機。
[C23]
ワイヤレス電力送信機において、
受信アンテナおよび送信アンテナが、ある距離より小さく離れている近接内にあるときに、近磁界中のワイヤレス電力を前記送信アンテナの共振タンクにおいて発生させる手段と、
前記受信アンテナおよび前記送信アンテナが、前記距離より大きく離れている近傍内にあるときに、前記近磁界の前記ワイヤレス電力を前記送信アンテナの寄生共振タンクにおいて発生させる手段とを具備するワイヤレス電力送信機。
Claims (16)
- 装置であって、
近磁界を介して受信された電力に基づいて交流(AC)を生成するように構成された直列共振タンクを備えるアンテナ回路と、
前記アンテナ回路に結合され、かつ前記交流(AC)に少なくとも部分的に基づいてバッテリーを充電するために直流(DC)を出力するように構成された電力変換回路、ここで、前記電力変換回路は、スイッチングエレメントと、前記スイッチングエレメントと並列に接続されたキャパシタとを備え、前記スイッチングエレメントは、ゼロボルトで切り替えられる、と、
前記電力変換回路の入力において前記アンテナ回路に提示されるような前記電力変換回路のインピーダンスを制御するための前記スイッチングエレメントを駆動するために使用される波形を変更するように構成される制御回路と
を備えるワイヤレス電力受信機
を備え、前記制御回路はさらに、前記電力変換回路への入力において電流測定に応答して前記波形の位相を調整するように構成されたクロック再生および位相角制御回路を備える、装置。 - 装置であって、
近磁界を介して受信された電力に基づいて交流(AC)を生成するように構成された並列共振タンクを備えるアンテナ回路と、
前記アンテナ回路に結合され、かつ前記交流(AC)に少なくとも部分的に基づいてバッテリーを充電するために直流(DC)を出力するように構成された電力変換回路、ここで、前記電力変換回路は、スイッチングエレメントと、前記スイッチングエレメントと直列に接続されたインダクタとを備え、前記スイッチングエレメントは、ゼロ電流において開かれる、と、
前記電力変換回路の入力において前記アンテナ回路に提示されるような前記電力変換回路のインピーダンスを制御するための前記スイッチングエレメントを駆動するために使用される波形を変更するように構成される制御回路と
を備えるワイヤレス電力受信機
を備え、前記制御回路はさらに、前記電力変換回路への入力において電流測定に応答して前記波形の位相を調整するように構成されたクロック再生および位相角制御回路を備える、装置。 - 前記並列共振タンクは、第1のキャパシタに並列の第1のインダクタを備え、前記第1のインダクタおよび前記第1のキャパシタは、第2のインダクタに直列である、請求項2に記載の装置。
- 前記電力変換回路は、同期整流器を備え、前記スイッチングエレメントは、前記交流(AC)を整流するように構成された1つまたは複数のスイッチを備える、請求項1または2に記載の装置。
- 前記制御回路は、前記1つまたは複数のスイッチを駆動するために使用される前記波形を、前記交流(AC)と同期させるように構成される、請求項4に記載の装置。
- 前記制御回路は、電圧と電流のうちの少なくとも1つを感知するようにさらに構成された電圧感知回路および電流感知回路を備え、前記制御回路は、前記電圧と前記電流のうちの少なくとも1つに基づいて前記波形を同期させるように構成される、請求項4に記載の装置。
- 前記電力変換回路はさらに、1つまたは複数のスイッチを有する同期整流器を備え、前記制御回路は、
前記1つまたは複数のスイッチを駆動するための前記波形を提供し、
前記1つまたは複数のスイッチを駆動するためのパルス幅変調に基づいて前記波形を変更する
ように構成される、請求項1または2に記載の装置。 - 前記制御回路は、前記電力変換回路の電力出力を調整するために前記波形のデューティーサイクルを増加または減少させるように構成される、請求項1または2に記載の装置。
- 前記ワイヤレス電力受信機は、
前記ワイヤレス電力受信機が前記ワイヤレス電力受信機に電力を供給する前記バッテリーとは関係なく前記制御回路のために電力を生成する、最小限モード、ここで、前記最小限モードは、前記近磁界から受信される電力がしきい値を上回るという決定に応じて可能にされる、および
前記ワイヤレス電力受信機が前記バッテリーに電力を提供する、通常モード
のうちの少なくとも1つに従って動作するように構成される、請求項1または2に記載の装置。 - ワイヤレス電力を受信するための方法であって、
共振タンクアンテナ回路によって、近磁界を介して受信された電力に基づいて交流(AC)を生成することと、
スイッチングエレメントを備える電力変換回路によって、前記交流(AC)に少なくとも部分的に基づいてバッテリーを充電するために、直流(DC)を生成すること、前記電力変換回路は、前記スイッチングエレメントと直列に接続されたインダクタを備え、前記スイッチングエレメントは、ゼロ電流において開かれる、と、
制御回路によって、前記電力変換回路の入力において前記共振タンクアンテナ回路に提示されるような前記電力変換回路のインピーダンスを制御するための前記スイッチングエレメントを制御するために使用される波形を変更することと
を備え、前記制御回路はさらに、前記電力変換回路への入力において電流測定に応答して前記波形の位相を調整するように構成されたクロック再生および位相角制御回路を備える、方法。 - 前記共振タンクアンテナ回路は、第1のインダクタに直列の第1のキャパシタを備え、前記第1のキャパシタおよび前記第1のインダクタは、第2のキャパシタに並列であり、前記第2のキャパシタは、前記電力変換回路の前記インピーダンスを減少させるように構成される、請求項10に記載の方法。
- 前記共振タンクアンテナ回路は、第1のキャパシタに並列の第1のインダクタを備え、前記第1のインダクタおよび前記第1のキャパシタは、第2のインダクタに直列である、請求項10に記載の方法。
- 前記電力変換回路は、同期整流器を備え、前記スイッチングエレメントは、前記交流(AC)を整流するように構成された1つまたは複数のスイッチを備える、請求項10に記載の方法。
- 前記制御回路は、前記1つまたは複数のスイッチを駆動するために使用される前記波形を前記交流(AC)と同期させるように構成される、請求項13に記載の方法。
- 前記制御回路は、電圧と電流のうちの少なくとも1つを感知するように構成された電圧感知回路および電流感知回路を備え、前記制御回路は、前記電圧と前記電流のうちの少なくとも1つに基づいて前記波形を同期させるように構成される、請求項13に記載の方法。
- ワイヤレス電力受信機であって、
近磁界を介して受信された電力に基づいて交流(AC)を生成するための手段と、
前記交流(AC)に少なくとも部分的に基づいてバッテリーを充電するために、直流(DC)を生成するための手段、前記DCを生成するための手段は、スイッチングエレメントと、前記スイッチングエレメントと直列に接続されたインダクタとを備え、前記スイッチングエレメントは、ゼロ電流において開かれる、と、
前記DCを生成するための手段の入力において前記ACを生成するための手段に提示されるような前記DCを生成するための手段のインピーダンスを制御するための前記スイッチングエレメントを制御するために使用される波形を変更するための手段と
を備え、前記波形を変更するための手段はさらに、前記DCを生成するための手段への入力において電流測定に応答して前記波形の位相を調整するための手段を備える、ワイヤレス電力受信機。
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WO2010014634A2 (en) | 2010-02-04 |
CN102113195A (zh) | 2011-06-29 |
JP2014112839A (ja) | 2014-06-19 |
CN105896750A (zh) | 2016-08-24 |
WO2010014634A3 (en) | 2010-05-20 |
KR20140043821A (ko) | 2014-04-10 |
JP2016105690A (ja) | 2016-06-09 |
CN105896750B (zh) | 2019-12-24 |
KR20110036639A (ko) | 2011-04-07 |
US20120262004A1 (en) | 2012-10-18 |
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