JP2015043692A - 無線の場を介して、負荷に電力を供給するための装置、方法 - Google Patents
無線の場を介して、負荷に電力を供給するための装置、方法 Download PDFInfo
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Classifications
-
- 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
-
- 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
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
-
- 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
-
- 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
-
- 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
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- 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
- H02J7/00045—Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
-
- 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
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
- H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Transceivers (AREA)
- Near-Field Transmission Systems (AREA)
- Details Of Aerials (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Transmitters (AREA)
Abstract
Description
・通信ハンドセット:携帯電話、コードレスフォン
・インフォテインメント:音楽(MP3)プレーヤ(diskman、ipodなど)、モバイルTV、携帯型オーディオ
ブロードキャスト受信機
・写真/ビデオ:デジタル/ビデオカム
・ワイヤレス周辺装置:Bluetooth(登録商標)ヘッドセット、コードレスマイクロフォンなど
・時間およびナビゲーション:腕時計/リストコンピュータ、GPSデバイス
・IT:PAD、ラップトップ、コードレスキーボードおよびマウスなど
・家庭用:電子クロック、温度計、ウェザーステーション、ポケット計算機など
・医療用:補聴器、心臓ペースメーカなど
・スポーツ:ストップウォッチ、雪崩ビーコン、バイクコンピュータ、バイクランプ、ポケットランプ、
パルスモニタなど
を含む。
・HF帯における13.56MHz(ISM帯)
・LF帯における約135kHz(ISM帯)
におけるかかる適用のための国際的な基盤で定義され得る。
・外部からの物体(LFにおける金属物体およびHFにおける金属物体および誘電物体)
・極めて近接の離調された電力受信機、および/または
・ソースインピーダンスの変動
によってもたらされる離調効果を補償することができる
同調は、また、コンポーネントの許容差、経年劣化などを補償することができる。
・アンテナ同調制御
・電力制御および効率制御
・周波数生成
・他のハウスキーピング機能(たとえば、システム較正など)
・放射曝露制御
の全てを処理する。
・デバイス検出、識別、認証、または
・電力送信機と電力受信機(デバイス)との間の通信/シグナリング
のために提供され得る。
・外来物体(LFにおける金属物、ならびにHFにおける金属物体および誘電物体)
・極めて近接した離調された電力受信機
・ロードインピーダンスの変動
によって引き起こされた離調効果を補償し得る。
・(ミニモータ/アクチュエータによって駆動される)機械的に同調可能なキャパシタ
・電気的に同調可能なキャパシタ(誘電体の誘電率同調)、または
・キャパシタバンク(ライブラリ)、および電子的または機械的スイッチ(RFリレー)
によって達成され得る。
・伝達エネルギーを消費するターゲット負荷(たとえば、デバイス、デバイス回路のバッテリ)
・エネルギー受信機自体の供給(制御機能)によって強いられる負荷
・たとえば、理想的には最小の電力損失をもつDC/DC変換器を使用した、負荷インピーダンス適応、および負荷電力制御。負荷特性に応じて、これは、ステップダウンまたはステップアップコンバータとして振る舞うことができる。
・アンテナ同調制御
・電力制御および効率制御
・たとえば、負荷が60Hz電力周波数以外を必要とする場合における、周波数生成、ならびに
・システム較正のような他のハウスキーピング機能
を実行する。
・動作周波数で共鳴する送信アンテナユニット(フラットパネル)。
− 電力ステージ、たとえば、ハーフブリッジインバータ1380を駆動するワイヤレス電力送信のために使用される周波数を生成すること、
− ワイヤレス電力ブリッジの電力および効率を制御するために、本明細書で説明するように送信サブシステムの機能を自動制御すること、
− 送信サブシステムの手動制御のためのヒューマンインターフェースを制御すること。これは、たとえば、活性化/不活性化、電力制御などを含むことができる。
・タップ選択器を形成する、タップ付アンテナコイルおよび電気機械または電子スイッチ
・ミニアクチュエータによって駆動される機械的に調節可能なフェライトコア
・DCバイアス電流を使用するフェライトコアの透磁率同調
によって達成され得る。
・ワイヤ結合通信システム(主に、電力線、ADSL、VDSLなどの不適正シールド線を使用するシステム)
・心臓ペースメーカなどのセーフティクリティカルシステム
・クレジットカードなどのセキュリティクリティカルシステム
のような電磁放射に対する耐性が制限されたいくつかの非無線システムが存在する。
・一般の人々の曝露:年齢および健康状態が労働者のそれとは異なる一般的な集団に対する曝露。また、一般市民は、一般に、界への曝露の認識がなく、予防的な行為をとることができない(より限定的なレベル)。
・職業上の曝露:必要とされる場合、予防の手段をとることが可能な既知の界への曝露(あまり限定的でないレベル)。
・低周波電界への結合により、組織中に存在する電気双極子の再配向を生じる。
o 100Hz〜20MHz:エネルギー吸収は、首および脚において最も深刻である。
o 300MHz〜10GHz:著しい局部的な一様でない吸収
o >10GHz:エネルギー吸収が主に体表面において発生する。
・1Hz〜100kHz:神経系機能に対する影響を防止するための制限は、電流密度に基づく。
・低周波界への曝露は膜刺激に関連しており、中枢神経系に対する関係する影響は、神経および筋肉刺激をもたらす。
・100kHz〜10MHz間で、遷移領域が膜影響から加熱影響に発生する。
・レベルインジケータを制御するために、低減されているが、デバイスによって検出されるのに十分に高い電力レベルでの連続送信
オフィス機器(パーソナルコンピュータ、モニタ、ファックス装置、スキャナ、複写機、プリンタなど)は、第三セクタで大部分の電力消費をなくす。特に気候変動の領域における国際公約(特に京都議定書)に関して、および持続可能な発展としてそのような領域におけるその目的があるとすれば、エネルギー効率構想は、特殊な重要性をもつ。この調整された(エネルギースター(ENERGY STAR)として知られている)ラベリングプログラムは、消費者がエネルギー効率の良い機器を識別できるようにし、したがって、環境を保護するためにだけでなくエネルギー供給のセキュリティを保証するためにも役立つ省電力をもたらさなければならない。このプログラムは、エネルギー効率の良い製品の製造および販売を促進するためにも役立つ。
・より高い放射レベル
・複雑さおよびコスト(BOM)に関してより高いデバイス組み込み影響
・より低い伝達可能な電力
・より低い伝達効率
のものである。
・極めて近接の離調された電力受信機、および/または ・ソースインピーダンスの変動 によってもたらされる離調効果を補償することができる
同調は、また、コンポーネントの許容差、経年劣化などを補償することができる。
によって達成され得る。
・動作周波数で共鳴する送信アンテナユニット(フラットパネル)。
・ミニアクチュエータによって駆動される機械的に調節可能なフェライトコア ・DCバイアス電流を使用するフェライトコアの透磁率同調 によって達成され得る。
・低周波電界への結合により、組織中に存在する電気双極子の再配向を生じる。
o 100Hz〜20MHz:エネルギー吸収は、首および脚において最も深刻である。
o 300MHz〜10GHz:著しい局部的な一様でない吸収
o >10GHz:エネルギー吸収が主に体表面において発生する。
・1Hz〜100kHz:神経系機能に対する影響を防止するための制限は、電流密度に基づく。
・低周波界への曝露は膜刺激に関連しており、中枢神経系に対する関係する影響は、神経および筋肉刺激をもたらす。
・100kHz〜10MHz間で、遷移領域が膜影響から加熱影響に発生する。
・レベルインジケータを制御するために、低減されているが、デバイスによって検出されるのに十分に高い電力レベルでの連続送信
オフィス機器(パーソナルコンピュータ、モニタ、ファックス装置、スキャナ、複写機、プリンタなど)は、第三セクタで大部分の電力消費をなくす。特に気候変動の領域における国際公約(特に京都議定書)に関して、および持続可能な発展としてそのような領域におけるその目的があるとすれば、エネルギー効率構想は、特殊な重要性をもつ。この調整された(エネルギースター(ENERGY STAR)として知られている)ラベリングプログラムは、消費者がエネルギー効率の良い機器を識別できるようにし、したがって、環境を保護するためにだけでなくエネルギー供給のセキュリティを保証するためにも役立つ省電力をもたらさなければならない。このプログラムは、エネルギー効率の良い製品の製造および販売を促進するためにも役立つ。
以下に本件出願当初の特許請求の範囲に記載された発明を付記する。
[C1]
可変インダクタンスを有するインダクタと、可変キャパシタンスを有するキャパシタとを含む磁気共鳴アンテナと、
前記磁気共鳴アンテナに結合され、前記アンテナを介して磁気共鳴ワイヤレス電力と接続する電力変換回路と、を備え、前記回路は、ワイヤレス電力伝達の尺度を判断し、前記ワイヤレス電力からの情報がどのくらいよく結合されており、前記磁気共鳴アンテナに制御信号を供給するかに関する前記尺度を示す制御信号を生成し、前記磁気共鳴アンテナは、前記信号に基づいて前記インダクタと前記キャパシタ値とのうちの少なくとも1つを調節する、
ワイヤレス電力システム。
[C2]
前記キャパシタは、固定キャパシタ部分と可変キャパシタ部分とを含む、
[C1]に記載のシステム。
[C3]
前記キャパシタ部分は、複数の切替え可能部分をもつスイッチドキャパシタを含み、各前記部分は、総キャパシタンスを変化させる、
[C2]に記載のシステム。
[C4]
前記可変インダクタンスは、コイルを含み、少なくとも1つのスイッチは、前記アンテナコイル上のタップのうちの1つを選択する、
[C1]に記載のシステム。
[C5]
前記回路は、機械的に調節可能なフェライトコアを含む、
[C1]に記載のシステム。
[C6]
前記機械的に調節可能なフェライトコアは、前記インダクタンスを変化させるために移動される部分を有する、
[C5]に記載のシステム。
[C7]
前記磁気共鳴アンテナは、キャパシタンスレベルを同調するためにDCバイアス電圧を使用する、
[C1]に記載のシステム。
[C8]
前記同調することは、インダクタンスを同調するためにDCバイアス電圧を使用する、
[C1]に記載のシステム。
[C9]
前記アンテナは、送信機中で使用される、[C1]に記載のシステム。
[C10]
前記アンテナは、受信機中で使用される、[C1]に記載のシステム。
[C11]
インダクタとキャパシタとを含む、ワイヤレス電力のために同調される磁気共鳴アンテナと、なお、前記インダクタは、前記インダクタの別の部分に対して移動されるフェライトコアを含む可変インダクタであり、前記フェライトコアの移動は、前記アンテナ中のインダクタンスの量を変化させる、
前記磁気共鳴アンテナに接続された、電力を処理する電力回路と、
を備えるワイヤレス電力システム。
[C12]
前記フェライトコアは、マイクロアクチュエータによって移動される、
[C11]に記載のシステム。
[C13]
前記フェライトコアの移動する必要がある量を判断する電子回路をさらに備える、
[C11]に記載のシステム。
[C14]
前記フェライトコアは、平坦なコアである、[C12]に記載のシステム。
[C15]
前記フェライトコアは、円筒形コアである、[C12]に記載のシステム。
[C16]
前記フェライトコアは、モバイルデバイスのカバーに組み込まれる、
[C14]に記載のシステム。
[C17]
アンテナコイルと、
前記アンテナコイルと直列のキャパシタと、なお、前記アンテナコイルおよび前記キャパシタは、電力のワイヤレス送信を受信するために同調される、
前記アンテナコイルに結合され、そこから電力を受信し、前記電力を変換する電力変換回路と、
前記コイルおよび前記キャパシタと直列であり、可変インピーダンスを有する同調可能なロードインピーダンスと、
前記キャパシタおよび前記コイルとの整合を改善するために、前記同調可能なロードインピーダンスを変更する回路と、
を備えるワイヤレス電力システム。
[C18]
ワイヤレス電力を結合する方法であって、
インダクタを形成するコイル部分の形状をしている磁気共鳴アンテナのキャパシタンスおよびインダクタンスと、可変キャパシタンスとの両方を変更することと、
前記磁気共鳴アンテナを使用して、電力をワイヤレスで送信するために、または電力をワイヤレスで受信するために、前記磁気共鳴アンテナを介して電力をリモートソースと或いはリモートソースから結合することと、
前記送信または前記受信によって実施されるワイヤレス電力伝達の尺度を判断し、前記ワイヤレス電力からの情報がどのくらいよく結合されるかに関する前記尺度を示す制御信号を生成することと、
前記磁気共鳴アンテナに制御信号を供給することと、を備え、前記磁気共鳴アンテナは、前記信号に基づいて前記キャパシタンスまたは前記インダクタンスのうちの1つを変更させる、
方法。
[C19]
前記キャパシタンスは、固定キャパシタ部分と可変キャパシタ部分とを含み、前記変更することは、前記可変キャパシタ部分のみを変更する、
[C18]に記載の方法。
[C20]
前記変更することは、複数の異なる切替え可能部分のうちの1つを選択することを備え、前記部分各々は、総キャパシタンスを変化させる、
[C19]に記載の方法。
[C21]
前記可変インダクタンスは、複数のタップをもつコイルを含み、前記タップのうちの少なくとも1つに接続することを選択することをさらに備え、少なくとも1つのスイッチは、前記アンテナコイル上の前記タップのうちの少なくとも1つを選択する、
[C18]に記載の方法。
[C22]
前記可変インダクタンス回路は、機械的に調節可能なフェライトコアを含み、前記変更することは、前記コアの調節を変化させることを備える、
[C18]に記載の方法。
[C23]
前記アンテナは、送信機中で使用される、[C18]に記載の方法。
[C24]
前記アンテナは、受信機中で使用される、[C18]に記載の方法。
[C25]
電力を送信機から受信機にワイヤレスで送信することと、
前記送信機中で、前記送信機と前記受信機との間の結合係数の変化を検出することと、
前記検出することに基づいて、前記送信することの偏波を変化させることによって、前記送信機を適応させることと
を備える方法。
[C26]
前記検出することは、前記受信機から生成されたフィードバックを感知する、
[C25]に記載の方法。
[C27]
前記フィードバックは、通信のために前記受信機によっても使用される短距離通信プロトコルによって送信される、
[C26]に記載の方法。
[C28]
受信機からのフィードバックの感知と、前記デバイスの識別の両方のためにインターフェースを使用することをさらに備える、
[C25]に記載の方法。
[C29]
前記検出することは、結合係数の前記変化を検出するために、前記送信機中で前記受信機のローカルモデルを使用する、
[C25]に記載の方法。
[C30]
前記検出することは、第1の動作モードで前記受信機から生成されたフィードバックを感知し、前記検出することは、第2の動作モードで結合係数の前記変化を検出するために、前記送信機中で前記受信機のローカルモデルを使用する、
[C25]に記載の方法。
[C31]
前記送信することのために使用されるアンテナを同調することをさらに備え、前記同調することは、インダクタンスまたはキャパシタンスのうちの少なくとも1つを同調することを備える、
[C25]に記載の方法。
[C32]
前記送信することのために使用されるアンテナを同調することさらに備え、前記同調することは、インダクタンスとキャパシタンスの両方を同調することを備える、
[C25]に記載の方法。
[C33]
外来物体、極めて近接した離調電力受信機、またはロードインピーダンスのばらつきのうちの1つに対して、前記送信するために使用されるアンテナを同調することをさらに備える、
[C31]に記載の方法。
[C34]
電力を送信機から受信機にワイヤレスで送信することと、
前記受信機によるローディングに依存する前記送信機のための同調情報を、前記送信機中で検出することと、
前記検出することに基づいて、前記ローディングに応じて前記受信機への結合を改善するように前記送信機を同調させることによって前記送信機を適応することと、
を備える方法。
[C35]
前記検出することは、前記受信機からのフィードバックを感知する、[C34]に記載の方法。
[C36]
前記フィードバックは、通信のために前記受信機によっても使用される短距離通信プロトコルを使用する、
[C35]に記載の方法。
[C37]
受信機からのフィードバックの感知と、前記デバイスの識別の両方のためにインターフェースを使用することをさらに備える、
[C34]に記載の方法。
[C38]
前記検出することは、結合係数の前記変化を検出するために、前記送信機中で前記受信機のローカルモデルを使用する、
[C34]に記載の方法。
[C39]
前記送信することのために使用されるアンテナを同調することをさらに備え、前記同調することは、前記アンテナのインダクタンスまたはキャパシタンスのうちの少なくとも1つを同調することを備える、
[C34]に記載の方法。
[C40]
前記送信することのために使用されるアンテナを同調することをさらに備え、前記同調することは、前記アンテナのインダクタンスとキャパシタンスとの両方を同調することを備える、
[C34]に記載の方法。
110 RF電源
120 整合回路
130 共鳴アンテナ
140 同調
150 配向制御
160 制御システム
170 ワイヤレスインターフェース
Claims (40)
- 可変インダクタンスを有するインダクタと、可変キャパシタンスを有するキャパシタとを含む磁気共鳴アンテナと、
前記磁気共鳴アンテナに結合され、前記アンテナを介して磁気共鳴ワイヤレス電力と接続する電力変換回路と、を備え、前記回路は、ワイヤレス電力伝達の尺度を判断し、前記ワイヤレス電力からの情報がどのくらいよく結合されており、前記磁気共鳴アンテナに制御信号を供給するかに関する前記尺度を示す制御信号を生成し、前記磁気共鳴アンテナは、前記信号に基づいて前記インダクタと前記キャパシタ値とのうちの少なくとも1つを調節する、
ワイヤレス電力システム。 - 前記キャパシタは、固定キャパシタ部分と可変キャパシタ部分とを含む、
請求項1に記載のシステム。 - 前記キャパシタ部分は、複数の切替え可能部分をもつスイッチドキャパシタを含み、各前記部分は、総キャパシタンスを変化させる、
請求項2に記載のシステム。 - 前記可変インダクタンスは、コイルを含み、少なくとも1つのスイッチは、前記アンテナコイル上のタップのうちの1つを選択する、
請求項1に記載のシステム。 - 前記回路は、機械的に調節可能なフェライトコアを含む、
請求項1に記載のシステム。 - 前記機械的に調節可能なフェライトコアは、前記インダクタンスを変化させるために移動される部分を有する、
請求項5に記載のシステム。 - 前記磁気共鳴アンテナは、キャパシタンスレベルを同調するためにDCバイアス電圧を使用する、
請求項1に記載のシステム。 - 前記同調することは、インダクタンスを同調するためにDCバイアス電圧を使用する、
請求項1に記載のシステム。 - 前記アンテナは、送信機中で使用される、請求項1に記載のシステム。
- 前記アンテナは、受信機中で使用される、請求項1に記載のシステム。
- インダクタとキャパシタとを含む、ワイヤレス電力のために同調される磁気共鳴アンテナと、なお、前記インダクタは、前記インダクタの別の部分に対して移動されるフェライトコアを含む可変インダクタであり、前記フェライトコアの移動は、前記アンテナ中のインダクタンスの量を変化させる、
前記磁気共鳴アンテナに接続された、電力を処理する電力回路と、
を備えるワイヤレス電力システム。 - 前記フェライトコアは、マイクロアクチュエータによって移動される、
請求項11に記載のシステム。 - 前記フェライトコアの移動する必要がある量を判断する電子回路をさらに備える、
請求項11に記載のシステム。 - 前記フェライトコアは、平坦なコアである、請求項12に記載のシステム。
- 前記フェライトコアは、円筒形コアである、請求項12に記載のシステム。
- 前記フェライトコアは、モバイルデバイスのカバーに組み込まれる、
請求項14に記載のシステム。 - アンテナコイルと、
前記アンテナコイルと直列のキャパシタと、なお、前記アンテナコイルおよび前記キャパシタは、電力のワイヤレス送信を受信するために同調される、
前記アンテナコイルに結合され、そこから電力を受信し、前記電力を変換する電力変換回路と、
前記コイルおよび前記キャパシタと直列であり、可変インピーダンスを有する同調可能なロードインピーダンスと、
前記キャパシタおよび前記コイルとの整合を改善するために、前記同調可能なロードインピーダンスを変更する回路と、
を備えるワイヤレス電力システム。 - ワイヤレス電力を結合する方法であって、
インダクタを形成するコイル部分の形状をしている磁気共鳴アンテナのキャパシタンスおよびインダクタンスと、可変キャパシタンスとの両方を変更することと、
前記磁気共鳴アンテナを使用して、電力をワイヤレスで送信するために、または電力をワイヤレスで受信するために、前記磁気共鳴アンテナを介して電力をリモートソースと或いはリモートソースから結合することと、
前記送信または前記受信によって実施されるワイヤレス電力伝達の尺度を判断し、前記ワイヤレス電力からの情報がどのくらいよく結合されるかに関する前記尺度を示す制御信号を生成することと、
前記磁気共鳴アンテナに制御信号を供給することと、を備え、前記磁気共鳴アンテナは、前記信号に基づいて前記キャパシタンスまたは前記インダクタンスのうちの1つを変更させる、
方法。 - 前記キャパシタンスは、固定キャパシタ部分と可変キャパシタ部分とを含み、前記変更することは、前記可変キャパシタ部分のみを変更する、
請求項18に記載の方法。 - 前記変更することは、複数の異なる切替え可能部分のうちの1つを選択することを備え、前記部分各々は、総キャパシタンスを変化させる、
請求項19に記載の方法。 - 前記可変インダクタンスは、複数のタップをもつコイルを含み、前記タップのうちの少なくとも1つに接続することを選択することをさらに備え、少なくとも1つのスイッチは、前記アンテナコイル上の前記タップのうちの少なくとも1つを選択する、
請求項18に記載の方法。 - 前記可変インダクタンス回路は、機械的に調節可能なフェライトコアを含み、前記変更することは、前記コアの調節を変化させることを備える、
請求項18に記載の方法。 - 前記アンテナは、送信機中で使用される、請求項18に記載の方法。
- 前記アンテナは、受信機中で使用される、請求項18に記載の方法。
- 電力を送信機から受信機にワイヤレスで送信することと、
前記送信機中で、前記送信機と前記受信機との間の結合係数の変化を検出することと、
前記検出することに基づいて、前記送信することの偏波を変化させることによって、前記送信機を適応させることと
を備える方法。 - 前記検出することは、前記受信機から生成されたフィードバックを感知する、
請求項25に記載の方法。 - 前記フィードバックは、通信のために前記受信機によっても使用される短距離通信プロトコルによって送信される、
請求項26に記載の方法。 - 受信機からのフィードバックの感知と、前記デバイスの識別の両方のためにインターフェースを使用することをさらに備える、
請求項25に記載の方法。 - 前記検出することは、結合係数の前記変化を検出するために、前記送信機中で前記受信機のローカルモデルを使用する、
請求項25に記載の方法。 - 前記検出することは、第1の動作モードで前記受信機から生成されたフィードバックを感知し、前記検出することは、第2の動作モードで結合係数の前記変化を検出するために、前記送信機中で前記受信機のローカルモデルを使用する、
請求項25に記載の方法。 - 前記送信することのために使用されるアンテナを同調することをさらに備え、前記同調することは、インダクタンスまたはキャパシタンスのうちの少なくとも1つを同調することを備える、
請求項25に記載の方法。 - 前記送信することのために使用されるアンテナを同調することさらに備え、前記同調することは、インダクタンスとキャパシタンスの両方を同調することを備える、
請求項25に記載の方法。 - 外来物体、極めて近接した離調電力受信機、またはロードインピーダンスのばらつきのうちの1つに対して、前記送信するために使用されるアンテナを同調することをさらに備える、
請求項31に記載の方法。 - 電力を送信機から受信機にワイヤレスで送信することと、
前記受信機によるローディングに依存する前記送信機のための同調情報を、前記送信機中で検出することと、
前記検出することに基づいて、前記ローディングに応じて前記受信機への結合を改善するように前記送信機を同調させることによって前記送信機を適応することと、
を備える方法。 - 前記検出することは、前記受信機からのフィードバックを感知する、
請求項34に記載の方法。 - 前記フィードバックは、通信のために前記受信機によっても使用される短距離通信プロトコルを使用する、
請求項35に記載の方法。 - 受信機からのフィードバックの感知と、前記デバイスの識別の両方のためにインターフェースを使用することをさらに備える、
請求項34に記載の方法。 - 前記検出することは、結合係数の前記変化を検出するために、前記送信機中で前記受信機のローカルモデルを使用する、
請求項34に記載の方法。 - 前記送信することのために使用されるアンテナを同調することをさらに備え、前記同調することは、前記アンテナのインダクタンスまたはキャパシタンスのうちの少なくとも1つを同調することを備える、
請求項34に記載の方法。 - 前記送信することのために使用されるアンテナを同調することをさらに備え、前記同調することは、前記アンテナのインダクタンスとキャパシタンスとの両方を同調することを備える、
請求項34に記載の方法。
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US20130342025A1 (en) | 2013-12-26 |
KR20130020721A (ko) | 2013-02-27 |
US20090243397A1 (en) | 2009-10-01 |
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KR20130096322A (ko) | 2013-08-29 |
EP2269408B1 (en) | 2019-08-07 |
JP2017022989A (ja) | 2017-01-26 |
KR20160132129A (ko) | 2016-11-16 |
CN101978746A (zh) | 2011-02-16 |
EP3611821A1 (en) | 2020-02-19 |
CN104242420A (zh) | 2014-12-24 |
EP2269408A2 (en) | 2011-01-05 |
KR101904686B1 (ko) | 2018-10-04 |
KR101301389B1 (ko) | 2013-08-28 |
JP5646548B2 (ja) | 2014-12-24 |
CN104242420B (zh) | 2018-01-16 |
WO2009111597A3 (en) | 2009-12-03 |
KR20170093997A (ko) | 2017-08-16 |
WO2009111597A2 (en) | 2009-09-11 |
KR20120083517A (ko) | 2012-07-25 |
KR101768404B1 (ko) | 2017-08-14 |
KR101357500B1 (ko) | 2014-02-03 |
EP3611821B1 (en) | 2023-08-02 |
KR20100130618A (ko) | 2010-12-13 |
JP6042401B2 (ja) | 2016-12-14 |
US8855554B2 (en) | 2014-10-07 |
US9461714B2 (en) | 2016-10-04 |
EP2269408A4 (en) | 2018-01-24 |
JP2012231665A (ja) | 2012-11-22 |
JP6297638B2 (ja) | 2018-03-20 |
JP2011514781A (ja) | 2011-05-06 |
CN101978746B (zh) | 2014-10-15 |
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