JP5426570B2 - 誘導電力転送回路 - Google Patents
誘導電力転送回路 Download PDFInfo
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Description
・少なくとも一つの1次コイルを有する1次ユニットであって,1次コイルに交番電流を駆動し,時間変動磁束を生成するユニット
・1次ユニットから分離しており,2次コイルを有する2次ユニット
<付記>
本発明は,次の態様も含む。
1.誘導電力転送システムの1次ユニットに用いる回路であって,該回路は前記システムの1又は複数の2次ユニットへの電磁誘導によって無線で電力を転送するために電磁界を発生し,前記2次ユニットは前記1次ユニットから分離されており,
1次コイル又はダミーコイルをそれぞれ備える複数の駆動可能部と,
前記1次コイルを備える被駆動部が前記電磁界を発生するように,駆動信号を前記駆動可能部のうち二つ又は少なくとも二つに供給する駆動手段と,
前記被駆動部のうち1又は複数の前記1次コイル又はダミーコイルの特性を示す帰還信号によって,前記帰還信号を調整するように前記回路を制御する制御手段と,
を備え,前記回路は,
前記被駆動部が並列接続されて,調整された共振応答を有し,
前記制御手段が前記の駆動されるコイルそれぞれの特性を調整する,
ように構成された回路。
2.前記コイルの特性は,該コイルのコイル信号の強度とする請求項1に記載の回路。
3.前記駆動可能部はそれぞれ,実質的に前記1次コイル又はダミーコイルだけを含む請求項1又は2に記載の回路。
4.前記帰還信号は,前記被駆動部のコイルに共通する電圧信号強度を示すように構成する請求項3に記載の回路。
5.前記被駆動部と共通,かつ直列に接続された電気容量を備える請求項3又は4に記載の回路。
6.駆動期間中,
前記駆動信号は特定基本周波数を有し,
前記電気容量は特定容量値を有し,
前記被駆動部は合成特定インダクタンス値を有する,
ように構成する請求項5に記載の回路。
7.前記駆動期間中,常に駆動される被駆動部は,実質的に前記合成特定インダクタンス値を有するように構成する請求項6に記載の回路。
8.前記駆動期間の一つの期間に駆動される被駆動部は,前記駆動期間の別の期間に駆動される被駆動部と同一ではないように構成する請求項6又は7に記載の回路。
9.前記特定容量値は,前記被駆動部が前記特定基本周波数で共振する値とする請求項6〜8のいずれか一項に記載の回路。
10.前記容量は固定容量値とし,前記駆動信号は固定基本周波数を有する請求項6〜9のいずれか一項に記載の回路。
11.前記被駆動部は互いに実質的に同一のインダクタンスを有するように構成され,
前記回路は,前記駆動期間の一つの期間に駆動される被駆動部の数が,前記駆動期間の別の期間に駆動される被駆動部の数と同一であるように構成される,請求項6〜10のいずれか一項に記載の回路。
12.前記回路は,前記被駆動部が二つの主共振ピーク及び該二つの主共振ピークの間の実質的な平坦部を有する周波数応答を共通に有するように構成され,
前記駆動信号は,前記二つの主共振ピークの間,かつ前記平坦部内の周波数に基本周波数を有する,請求項3〜11のいずれか一項に記載の回路。
13.前記被駆動部は,直列電気容量及び安定回路に共通に接続されるように構成され,
前記直列電気容量及び安定回路は,前記被駆動部が前記周波数応答を共通に有するように構成される,請求項12に記載の回路。
14.前記回路は,前記被駆動部が合成インダクタンスL 1 を有するように構成され,
前記直列電気容量は容量C 1 を有し,
L 1 及びC 1 の値は,f 0 =1/(2π√L 1 C 1 ),f 0 は前記基本周波数,であるように構成する,請求項13に記載の回路。
15.前記安定回路は,前記容量C 1 と直列に接続されたインダクタンスL 2 と,前記の直列に接続された容量C 1 と並列に接続された容量C 2 と,インダクタンスL 1 とを有し,
L 2 及びC 2 の値は,f 0 =1/(2π√L 2 C 2 ),f 0 は前記基本周波数,であるように構成する,請求項14に記載の回路。
16.前記の値L 1 及びL 2 は,前記二つの主共振ピークが,前記回路の動作中に前記1次コイルと前記2次ユニットとの間の結合によって生じる実効インダクタンスの変化の影響が実質的に小さいように,周波数上十分に遠く離れるように構成する請求項15に記載の回路。
17.前記の値L 1 及びL 2 は,近似的にL 1 /L 2 =4であるように構成する請求項15又は16に記載の回路。
18.前記駆動可能部はそれぞれ,駆動されたとき,二つの主共振ピーク及び該二つの共振ピークの間の実質的な平坦部を有する周波数応答を有するように構成され,
前記駆動信号は,前記二つの主共振ピークの間,かつ前記平坦部内の周波数に基本周波数を有する,請求項1又は2に記載の回路。
19.前記駆動可能部は,駆動されたとき互いに実質的に同一のインダクタンスを有するように構成される請求項18に記載の回路。
20.前記駆動可能部は,互いに実質的に同一の形状を有する請求項18又は19に記載の回路。
21.前記駆動可能部はそれぞれ,コイルと直列に接続された電気容量及び安定回路を備え,
前記被駆動部ごとに,対応するコイルと,該コイルと直列に接続された電気容量と,安定回路とが,前記駆動可能部が駆動されたとき前記周波数応答を有するように構成する,請求項18〜20のいずれか一項に記載の回路。
22.前記1次コイルのインダクタンスは前記ダミーコイルのインダクタンスと実質的に同一とし,
前記駆動可能部の直列電気容量は互いに実質的に同一とし,
前記駆動可能部の安定回路は互いに実質的に同一とし,
前記コイルと,前記直列電気容量と,前記安定回路とは,前記駆動可能部のいずれにおいても実質的に同一の方法で構成される,
請求項21に記載の回路。
23.前記駆動可能部ごとに,
前記コイルはインダクタンスL 1 を有し,前記直列電気容量は容量C 1 を有し,
L 1 及びC 1 の値は,f 0 =1/(2π√L 1 C 1 ),f 0 は前記基本周波数,であるように構成する,請求項21又は22に記載の回路。
24.前記駆動可能部ごとに,
前記安定回路は,前記容量C 1 と直列に接続されたインダクタンスL 2 と,前記の直列に接続された容量C 1 及びコイルと並列に接続された容量C 2 とを有し,
L 2 及びC 2 の値は,f 0 =1/(2π√L 2 C 2 ),f 0 は前記基本周波数,であるように構成する,請求項23に記載の回路。
25.前記駆動可能部ごとに,前記の値L 1 及びL 2 は,前記二つの主共振ピークが,前記回路の動作中に前記1次コイルと前記2次ユニットとの間の結合によって生じる実効インダクタンスの変化の影響が実質的に小さいように,周波数上十分に遠く離れるように構成する請求項24に記載の回路。
26.前記駆動可能部ごとに,前記の値L 1 及びL 2 は,近似的にL 1 /L 2 =4であるように構成する請求項24又は25に記載の回路。
27.前記帰還信号が前記被駆動部のうち一つだけから取得されるように,前記回路を構成する請求項18〜26のいずれか一項に記載の回路。
28.前記帰還信号が,前記被駆動部の1次コイル又はダミーコイルの電圧,電流又は電力の信号を表すように,前記回路を構成する請求項27に記載の回路。
29.前記回路は,前記被駆動部それぞれから独立した前記帰還信号が取得されるように構成され,
前記制御手段は,前記帰還信号のうち1又は複数によって,前記制御を行う,
請求項18〜26のいずれか一項に記載の回路。
30.前記回路は,前記被駆動部それぞれから,又は前記回路から誘導電力を受電する2次ユニットそれぞれから,独立した前記帰還信号が取得されるように構成され,
前記駆動可能部のそれぞれ,又は一つを除くそれぞれが被制御要素を含み,
前記制御手段は,前記帰還信号に応答して,前記被制御要素を制御することによって,前記制御を行う,
請求項1又は2に記載の回路。
31.前記制御手段は,前記被制御要素を用いて前記の駆動されるコイルの特性を互いに調整する請求項30に記載の回路。
32.前記被制御要素は,可変リアクタンスとする請求項30又は31に記載の回路。
33.前記被制御要素は,可変電気容量とする請求項30〜32のいずれか一項に記載の回路。
34.前記被制御要素は,前記制御下で前記被駆動部の前記駆動信号の基本周波数を変化させる請求項30又は31に記載の回路。
35.前記被制御要素は,可変周波逆変換器又は半橋絡回路とする請求項34に記載の回路。
36.前記駆動可能部はそれぞれ,コイルに直列に接続された電気容量を有する請求項30〜35のいずれか一項に記載の回路。
37.前記ダミーコイルは,駆動されたとき電磁界を発生しないインダクタとする請求項1〜36のいずれか一項に記載の回路。
38.前記ダミーコイルのインダクタンスは,前記1次コイルのインダクタンスと実質的に同一とする請求項1〜37のいずれか一項に記載の回路。
39.前記コイルは,駆動されたとき互いに同一の極性を有する請求項1〜38のいずれか一項に記載の回路。
40.前記コイルのうち1又は複数は,駆動されたとき前記コイルのうち別の1又は複数と異なる極性を有する請求項1〜39のいずれか一項に記載の回路。
41.誘導電力転送システムの1次ユニットに用いる回路であって,該回路は前記システムの2次ユニットへの電磁誘導によって無線で電力を転送するために,時間変動電磁界を発生し,前記2次ユニットは前記1次ユニットから分離されており,
1次コイルを備える駆動可能部と,
前記1次コイルが前記電磁界を発生するための所定基本周波数を有する駆動信号を,前記駆動可能部に供給する駆動手段と,
を備え,
前記駆動可能部は,駆動されたとき,二つの主共振ピーク及び該二つの主共振ピークの間の実質的な平坦部を有する周波数応答を有するように構成され,
前記駆動手段は,前記基本周波数が,前記二つの主共振ピークの間,かつ前記平坦部内の周波数にあるように構成された,回路。
42.前記駆動可能部の1次コイルは,駆動されたとき,直列に接続された電気容量及び安定回路に接続され,
前記1次回路と,直列電気容量と,安定回路とは,前記駆動可能部が駆動されたとき,前記周波数応答を有するように構成される,
請求項41に記載の回路。
43.前記1次コイルはインダクタンスL 1 を有し,
前記直列電気容量は直列容量C 1 を有し,
L 1 及びC 1 の値は,f 0 =1/(2π√L 1 C 1 ),f 0 は前記基本周波数,であるように構成する,請求項42に記載の回路。
44.前記安定回路は,前記駆動可能部が駆動されたとき,前記容量C 1 と直列に接続されたインダクタンスL 2 と,前記の直列に接続された容量C 1 と並列に接続された容量C 2 と,前記1次コイルとを有し,
L 2 及びC 2 の値は,f 0 =1/(2π√L 2 C 2 ),f 0 は前記基本周波数,であるように構成する,請求項43に記載の回路。
45.前記の値L 1 及びL 2 は,前記二つの主共振ピークが,前記1次コイルと前記2次ユニットとの間の結合によって生じる実効インダクタンスの変化の影響が実質的に小さいように,周波数上十分に遠く離れるように構成する請求項44に記載の回路。
46.前記の値L 1 及びL 2 は,近似的にL 1 /L 2 =4であるように構成する請求項44又は45に記載の回路。
47.請求項1〜46のいずれか一項に記載の回路を備えた誘導電力転送システムに用いる1次ユニット。
48.電磁界を発生する1次ユニットと,
前記1次ユニットとは分離された少なくとも一つの2次ユニットであって,前記1次ユニットの近傍にあるとき,該1次ユニットから電磁誘導によって無線で電力を受電するように構成された2次ユニットと,
を備え,前記1次ユニットは請求項1〜46のいずれか一項に記載の回路を備える誘導電力転送システム。
49.実質的に付属の図面に関して本願明細書で説明したとおりの回路,1次ユニット又は誘導電力転送システム。
本発明は,更に次の態様も含む。
1.誘導電力転送システムの1次ユニットに用いる回路であって,該回路は前記システムの1又は複数の2次ユニットへの電磁誘導によって無線で電力を転送するために電磁界を発生し,前記2次ユニットは前記1次ユニットから分離されており,
1次コイル又はダミーコイルをそれぞれ備える複数の駆動可能部と,
前記1次コイルを備える被駆動部が前記電磁界を発生するように,駆動信号を前記駆動可能部のうち二つ又は少なくとも二つに供給する駆動回路と,
前記被駆動部のうち1又は複数の前記1次コイル又はダミーコイルの特性を示す帰還信号によって,前記帰還信号を調整するように前記回路を制御する制御回路と,
を備え,前記回路は,
前記被駆動部が並列接続されて,調整された共振応答を有し,
前記制御回路が前記の駆動されるコイルそれぞれの特性を調整する,
ように構成された回路。
2.前記コイルの特性は,該コイルのコイル信号の強度とする請求項1に記載の回路。
3.前記駆動可能部はそれぞれ,実質的に前記1次コイル又はダミーコイルだけを含む請求項1に記載の回路。
4.前記帰還信号は,前記被駆動部のコイルに共通する電圧信号強度を示すように構成する請求項3に記載の回路。
5.前記被駆動部と共通,かつ直列に接続された電気容量を備える請求項3に記載の回路。
6.駆動期間中,
前記駆動信号は特定基本周波数を有し,
前記電気容量は特定容量値を有し,
前記被駆動部は合成特定インダクタンス値を有する,
ように構成する請求項5に記載の回路。
7.前記駆動期間中,常に駆動される被駆動部は,実質的に前記合成特定インダクタンス値を有するように構成する請求項6に記載の回路。
8.前記駆動期間の一つの期間に駆動される被駆動部は,前記駆動期間の別の期間に駆動される被駆動部と同一ではないように構成する請求項6に記載の回路。
9.前記特定容量値は,前記被駆動部が前記特定基本周波数で共振する値とする請求項6に記載の回路。
10.前記容量は固定容量値とし,前記駆動信号は固定基本周波数を有する請求項6に記載の回路。
11.前記回路は,前記駆動期間の一つの期間に駆動される被駆動部の数が,前記駆動期間の別の期間に駆動される被駆動部の数と同一であるように構成される,請求項6に記載の回路。
12.前記回路は,前記被駆動部が二つの主共振ピーク及び該二つの主共振ピークの間の実質的な平坦部を有する周波数応答を共通に有するように構成され,
前記駆動信号は,前記二つの主共振ピークの間,かつ前記平坦部内の周波数に基本周波数を有する,請求項3に記載の回路。
13.前記被駆動部は,直列電気容量及び安定回路に共通に接続されるように構成され,
前記直列電気容量及び安定回路は,前記被駆動部が前記周波数応答を共通に有するように構成される,請求項12に記載の回路。
14.前記駆動可能部はそれぞれ,駆動されたとき,二つの主共振ピーク及び該二つの共振ピークの間の実質的な平坦部を有する周波数応答を有するように構成され,
前記駆動信号は,前記二つの主共振ピークの間,かつ前記平坦部内の周波数に基本周波数を有する,請求項1に記載の回路。
15.前記駆動可能部は,駆動されたとき互いに実質的に同一のインダクタンスを有するように構成される請求項14に記載の回路。
16.前記駆動可能部は,互いに実質的に同一の形状を有する請求項14に記載の回路。
17.前記駆動可能部はそれぞれ,コイルと直列に接続された電気容量及び安定回路を備え,
前記駆動可能部ごとに,対応するコイルと,該コイルと直列に接続された電気容量と,安定回路とが,前記駆動可能部が駆動されたとき前記周波数応答を有するように構成する,請求項14に記載の回路。
18.前記駆動可能部の直列電気容量は互いに実質的に同一とし,
前記駆動可能部の安定回路は互いに実質的に同一とし,
前記コイルと,前記直列電気容量と,前記安定回路とは,前記駆動可能部のいずれにおいても実質的に同一の方法で構成される,
請求項17に記載の回路。
19.前記帰還信号が前記被駆動部のうち一つだけから取得されるように,前記回路を構成する請求項14に記載の回路。
20.前記帰還信号が,前記被駆動部の1次コイルの電圧,電流又は電力の信号を表すように,前記回路を構成する請求項19に記載の回路。
21.前記回路は,前記被駆動部それぞれから独立した前記帰還信号が取得されるように構成され,
前記制御回路は,前記帰還信号のうち1又は複数によって,前記制御を行う,
請求項14に記載の回路。
22.前記回路は,前記被駆動部それぞれから,又は前記回路から誘導電力を受電する2次ユニットそれぞれから,独立した前記帰還信号が取得されるように構成され,
前記駆動可能部のそれぞれ,又は一つを除くそれぞれが被制御要素を含み,
前記制御回路は,前記帰還信号に応答して,前記被制御要素を制御することによって,前記制御を行う,
請求項1に記載の回路。
23.前記制御回路は,前記被制御要素を用いて前記の駆動されるコイルの特性を互いに調整する請求項22に記載の回路。
24.前記被制御要素は,可変リアクタンスとする請求項22に記載の回路。
25.前記被制御要素は,可変電気容量とする請求項22に記載の回路。
26.前記被制御要素は,前記制御下で前記被駆動部の前記駆動信号の基本周波数を変化させる請求項22に記載の回路。
27.前記被制御要素は,可変周波逆変換器又は半橋絡回路とする請求項26に記載の回路。
28.前記駆動可能部はそれぞれ,コイルに直列に接続された電気容量を有する請求項22に記載の回路。
29.前記ダミーコイルは,駆動されたとき電磁界を発生しないインダクタとする請求項1に記載の回路。
30.前記ダミーコイルのインダクタンスは,前記1次コイルのインダクタンスと実質的に同一とする請求項29に記載の回路。
31.前記1次コイルは,駆動されたとき互いに同一の極性を有する請求項1に記載の回路。
32.前記コイルのうち1又は複数は,駆動されたとき前記コイルのうち別の1又は複数と異なる極性を有する請求項1に記載の回路。
33.誘導電力転送システムの1次ユニットに用いる回路であって,該回路は前記システムの2次ユニットへの電磁誘導によって無線で電力を転送するために,時間変動電磁界を発生し,前記2次ユニットは前記1次ユニットから分離されており,
1次コイルを備える駆動可能部と,
前記1次コイルが前記電磁界を発生するための所定基本周波数を有する駆動信号を,前記駆動可能部に供給する駆動回路と,
を備え,
前記駆動可能部は,駆動されたとき,二つの主共振ピーク及び該二つの主共振ピークの間の実質的な平坦部を有する周波数応答を有するように構成され,
前記駆動回路は,前記基本周波数が,前記二つの主共振ピークの間,かつ前記平坦部内の周波数にあるように構成された,回路。
34.前記駆動可能部の1次コイルは,駆動されたとき,直列に接続された電気容量及び安定回路に接続され,
前記1次回路と,直列電気容量と,安定回路とは,前記駆動可能部が駆動されたとき,前記周波数応答を有するように構成される,
請求項33に記載の回路。
35.電磁界を発生する1次ユニットと,
前記1次ユニットとは分離された少なくとも一つの2次ユニットであって,前記1次ユニットの近傍にあるとき,該1次ユニットから電磁誘導によって無線で電力を受電するように構成された2次ユニットと,
を備え,前記1次ユニットは請求項1に記載の回路を備える誘導電力転送システム。
Claims (22)
- 誘導電力転送システムの1次ユニットに用いる回路であって,該回路は前記システムの1又は複数の2次ユニットへの電磁誘導によって無線で電力を転送するために電磁界を発生し,前記2次ユニットは負荷を有し,前記1次ユニットから分離されており,
共振回路網と,
1次回路と,
前記1次回路が前記電磁界を発生するための駆動信号を前記共振回路網及び前記1次回路に供給する駆動回路と,を備え,
前記共振回路網及び前記1次回路は集合的に周波数応答を有し,該周波数応答は前記共振回路網によって主に規定される第1周波数に第1共振ピークを有し,かつ前記1次回路によって主に規定される第2周波数に第2共振ピークを有し,前記駆動信号は前記第1周波数と前記第2周波数との間の周波数で供給される,回路。 - 前記周波数応答は前記第1周波数と前記第2周波数との間の1又は複数の周波数に高原部を含み,該高原部は前記共振回路網及び前記1次回路の組合せによって主に規定される,請求項1に記載の回路。
- 前記周波数応答は,前記第1周波数と前記第2周波数との間の1又は複数の周波数に実質的な平坦部を含み,該実質的な平坦部は,前記共振回路網及び前記1次回路の組合せによって主に規定される,請求項1に記載の回路。
- 前記駆動信号は,前記実質的な平坦部内の前記1又は複数の周波数で,又は該1又は複数の周波数の近傍で供給される,請求項3に記載の回路。
- 前記実質的な平坦部は,前記1次回路と前記1又は複数の2次ユニットとの間の結合の変化による前記回路内の実効インダクタンスの変化に対して著しくは変化しない,請求項3に記載の回路。
- 前記1次回路と前記1又は複数の2次ユニットとの間の前記結合の変化は,(1)前記1次回路と前記1又は複数の2次ユニットとの間の位置揃えの変化と,(2)前記1又は複数の2次ユニットの負荷の変化とのうち少なくとも一つに依存する,請求項5に記載の回路。
- 前記第1周波数と前記第2周波数との間の前記周波数応答の一部は,前記1次回路と前記1又は複数の2次ユニットとの間の結合によって著しくは変化しない,請求項1に記載の回路。
- 前記誘導電力転送システムは,前記1又は複数の2次ユニットに電力を転送するときに見られる実効インダクタンスの変化に対して鈍感である,請求項1に記載の回路。
- 前記1次回路は1次回路インダクタを含み,前記共振回路網は共振回路網インダクタを含み,前記1次回路インダクタ及び前記共振回路網インダクタは,インダクタ比に応じて選択される,請求項1に記載の回路。
- 前記第1周波数と前記第2周波数との間の前記周波数応答の一部は,前記1次回路と前記1又は複数の2次ユニットとの間の結合の変化による実効インダクタンスの変化に対して著しくは変化しない,請求項1に記載の回路。
- 前記共振回路網は共振周波数を有するように構成され,前記1次回路は,前記インダクタ比を変化させずに同一の共振周波数を有するように構成される,請求項9に記載の回路。
- 前記インダクタ比は約4:1である,請求項9に記載の回路。
- 前記周波数応答は,前記第1周波数と前記第2周波数との間の1又は複数の周波数に谷部を含み,該谷部は,前記共振回路網及び前記1次回路の組合せによって主に規定される,請求項1に記載の回路。
- 1又は複数の2次ユニットへ無線で電力を転送するために電磁界を発生するように構成された1次回路を製造する方法であって,前記2次ユニットは前記1次ユニットから分離されており,
前記1次ユニットの目標周波数を選択するステップと,
共振回路網インダクタのインダクタンス値及び共振回路網コンデンサの容量値を,孤立している前記共振回路網の周波数応答が共振周波数を含むように選択するステップと,
1次回路インダクタのインダクタンス値及び1次回路コンデンサの容量値を,孤立している前記1次回路の周波数応答が共振周波数を含むように選択するステップと,
前記共振回路網及び前記1次回路の結合された周波数応答が,前記共振回路網によって主に規定される第1周波数に第1共振ピークを有し,前記1次回路によって主に規定される第2周波数に第2共振ピークを有するようにインダクタンス比を選択するステップであって,前記目標周波数は前記第1周波数と前記第2周波数との間に入る,ステップと,
前記の選択された目標周波数と,前記共振回路網インダクタの前記選択されたインダクタンス値と,前記共振回路網コンデンサの前記選択された容量値と,前記1次回路インダクタの前記選択されたインダクタンスちと,前記1次回路コンデンサの前記選択された容量値と,前記選択されたインダクタンス比と,を有する1次ユニットを製造するステップと,
を有する方法。 - 前記第1周波数と前記第2周波数との間の前記結合された周波数応答の一部は,前記1次回路と前記1又は複数の2次ユニットとの間の結合によって,著しくは変化しない,請求項14に記載の方法。
- 前記インダクタンス比は,所望の1次回路インダクタンスと,予想される駆動電圧と,予想されるコイル電圧と,部品値制約とのうち,少なくとも一つを補償するように調整される,請求項14に記載の方法。
- 前記1次回路と,前記共振回路網とのうち少なくとも一つの共振周波数を調整するステップを更に有する請求項14に記載の方法。
- 前記の調整ステップは,前記1次ユニットがゼロ電圧スイッチングを使用することを許容する,請求項17に記載の方法。
- 前記インダクタンス比は約4:1である,請求項14に記載の方法。
- 前記結合された周波数応答は,前記第1周波数と前記第2周波数との間の1又は複数の周波数に実質的な平坦部を含み,該実質的な平坦部は,前記共振回路網及び前記1次回路の組合せによって主に規定される,請求項14に記載の方法。
- 前記共振回路網の部品及び前記1次回路の部品は,携帯電話機に用いるように選択される,請求項14に記載の方法。
- 孤立している前記共振回路網の前記周波数応答は実質的に前記目標周波数に前記共振周波数を含み,孤立している前記1次回路の前記周波数応答は実質的に前記目標周波数に前記共振周波数を含む,請求項14に記載の方法。
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GB0724981A GB0724981D0 (en) | 2007-12-21 | 2007-12-21 | Enhanced power supply |
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2011
- 2011-05-18 HK HK11104924.0A patent/HK1150903A1/xx unknown
- 2011-08-15 US US13/209,584 patent/US8884469B2/en active Active
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2014
- 2014-05-15 US US14/278,683 patent/US9906044B2/en active Active
- 2014-10-09 US US14/510,554 patent/US9906047B2/en active Active
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2018
- 2018-02-23 US US15/903,695 patent/US10763699B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10530425B2 (en) | 2011-09-12 | 2020-01-07 | Sony Corporation | Device and system for power transmission |
US11063635B2 (en) | 2011-09-12 | 2021-07-13 | Sony Corporation | Device and system for power transmission |
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