JP5571820B2 - 電池を誘導充電するシステムおよび方法 - Google Patents
電池を誘導充電するシステムおよび方法 Download PDFInfo
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- JP5571820B2 JP5571820B2 JP2013090327A JP2013090327A JP5571820B2 JP 5571820 B2 JP5571820 B2 JP 5571820B2 JP 2013090327 A JP2013090327 A JP 2013090327A JP 2013090327 A JP2013090327 A JP 2013090327A JP 5571820 B2 JP5571820 B2 JP 5571820B2
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- 238000007600 charging Methods 0.000 title claims description 98
- 238000000034 method Methods 0.000 title claims description 27
- 230000001939 inductive effect Effects 0.000 claims description 31
- 230000001965 increasing effect Effects 0.000 claims description 15
- 239000000523 sample Substances 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 19
- 229910001416 lithium ion Inorganic materials 0.000 description 19
- 230000008713 feedback mechanism Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000007423 decrease Effects 0.000 description 9
- 238000012546 transfer Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 7
- 230000006698 induction Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 208000032953 Device battery issue Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010280 constant potential charging Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Classifications
-
- 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
-
- 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
- H02J50/80—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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H04B5/24—
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- H04B5/79—
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Description
ある周波数で1次コイルに電力を印加するステップと、
誘導的に結合する1次コイルと2次コイルを介する2次回路からのフィードバックを評価するステップと、
2次回路からのフィードバックに応じて1次コイルに印加する電力の周波数を調整するステップと、
を含む。このように、1次コイルに印加する電力の周波数は変化して電池への充電を最適化する。
特定の周波数で1次コイルに電力を印加するステップと、
充電回路からのフィードバック信号が充電回路に受信されたか否かを判定するステップと、
1次コイルに印加する電力の周波数をフィードバック信号に応じて変更して、2次回路に供給する電力を増加または減少するステップと
を有する。一実施形態では、周波数を変更するステップは、
フィードバック機構からのフィードバック信号を受信したときに、1次コイルに印加する電力の周波数を共振から離すように移動するステップ、
またはフィードバック機構からのフィードバック信号を受信しないときに、1次コイルに印加する電力の周波数を共振の方へ移動するステップ、
をさらに含んで規定される。
フィードバック信号を受信するまで1次コイルに印加する電力の周波数を徐々に共振の方へ移動するステップと、
フィードバック信号を受信した後にフィードバック信号を受信しなくなるまで1次コイルに印加する電力の周波数を共振から徐々に離すように移動するステップと、
充電期間中にその周波数で1次コイルに電力を印加するステップと、
を含む。プロセスは繰り返すことができる。
所定のプローブ周波数で1次コイルに電力パルスを印加するステップと、
反射インピーダンスを監視するステップと、
監視した反射インピーダンスに応じて電池があるか否かを判定するステップと、
をさらに含む。
Claims (18)
- 1次回路を有し、誘導的な結合を介して物体に電力を供給する充電回路を動作する方法であって、
前記1次回路に電力を供給し、前記1次回路に供給される電力量を検出することによって、前記物体の存在を探査するステップと、
前記検出した電力量が所定のしきい値にほぼ等しいか否かを判定するステップと、
前記検出した電力量が前記所定のしきい値にほぼ等しいことに基づいて、電池が十分に充電されていないことを示す充電状態に設定するステップと、
充電状態を確認するステップと、
(i)前記検出した電力量が前記所定のしきい値にほぼ等しくなく、且つ(ii)前記電池が十分に充電されていないことを前記充電状態が示す場合に、前記物体の電池を充電するために、動作周波数で前記1次回路に電力を供給し、
(i)前記検出した電力量が前記所定のしきい値にほぼ等しくなく、且つ(ii)前記電池が十分に充電されていることを前記充電状態が示す場合に、前記探査を繰り返すステップと、
を有することを特徴とする方法。 - 前記探査は、所定の探査周波数で前記1次回路に電力を供給することを含む、請求項1に記載の方法。
- 前記充電状態は、充電フラグの状態である、請求項1に記載の方法。
- 前記所定のしきい値は、無負荷1次電流である、請求項1に記載の方法。
- 前記物体が前記充電回路に近接するときに、前記検出される電力量は前記しきい値よりも大きくなる、請求項1に記載の方法。
- 前記物体は、誘導的な結合を介して充電する電池を有する2次回路である、請求項1に記載の方法。
- 検出した前記電池の過電圧状態又は検出した前記電池の過電流状態に応じて、前記2次回路からフィードバック信号を受信するステップを更に含む、請求項1に記載の方法。
- 前記物体は、誘導的な結合を介して前記誘導的に充電する回路に前記フィードバック信号を生成するためのスイッチを含み、前記スイッチの動作によって反射インピーダンスが変化する、請求項7に記載の方法。
- 誘導的な結合を介して物体に電力を供給する誘導充電回路であって、
電源と、
前記物体に誘導的な結合を介して無線電力を供給する1次素子を含む1次回路と、
前記1次素子に電力量を示す出力を提供するセンサと、
前記1次回路及び前記電源に電気的に接続され、前記電源から前記1次素子に、ある周波数で電力を印加するように構成された制御器とを有し、
前記制御器は、前記1次素子に電力を印加することによって、前記物体の存在を探査するように構成され、
前記制御器は、前記センサの出力に基づいて、電力の適用に応じて前記電力量が所定のしきい値にほぼ等しいか否かを判定するように構成され、
前記制御器は、前記検出した電力量が前記所定のしきい値にほぼ等しい場合、電池が十分に充電されていないことを示す充電状態に判定するように構成され、
(i)前記検出した電力量が前記所定のしきい値にほぼ等しくなく、(ii)前記充電状態が前記電池が十分に充電されていないことを示す場合に、前記物体の電池を充電するために、動作周波数で前記1次回路に電力が供給され、
(i)前記検出した電力量が前記所定のしきい値にほぼ等しくなく、(ii)前記充電状態が前記電池が十分に充電されていることを示す場合に、前記制御器は、前記1次素子への電力の適用を繰り返し、前記制御器は、前記センサの出力に基づいて、前記検出した電力量が所定のしきい値にほぼ等しいか否かを決定する、誘導充電回路。 - 前記制御器は、探査周波数で前記1次素子に電力を印加することによって前記物体の存在を探査する、請求項9に記載の誘導充電回路。
- 前記所定のしきい値は、無負荷1次電流である、請求項9に記載の誘導充電回路。
- 前記物体が前記充電回路に近接するときに、前記検出される電力量は前記しきい値よりも大きくなる、請求項9に記載の誘導充電回路。
- 前記センサは電流センサであり、前記センサの出力は前記1次素子の電流を示す、請求項9に記載の誘導充電回路。
- 前記充電状態は、充電フラグの状態である、請求項9に記載の誘導充電回路。
- 前記物体は、前記誘導的な結合を介して充電する電池を有する2次回路である、請求項9に記載の誘導充電回路。
- 前記2次回路は、検出した前記電池の過電圧状態又は検出した前記電池の過電流状態に応じて、フィードバック信号を生成する、請求項15に記載の誘導充電回路。
- 前記物体は、誘導的な結合を介して前記誘導的に充電する回路に前記フィードバック信号を生成するためのスイッチを含み、前記スイッチの動作によって反射インピーダンスが変化する、請求項15に記載の誘導充電回路。
- 前記スイッチが閉じることに応じて、電流は前記物体の抵抗素子を介してシャントされ、前記電流は、前記物体の反射インピーダンスに変化をもたらし、前記1次素子を介する電流を増加し、前記センサは前記1次素子を介する電流の増加を検出する、請求項17に記載の誘導充電回路。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82758606P | 2006-09-29 | 2006-09-29 | |
US60/827,586 | 2006-09-29 | ||
US11/855,710 US8004235B2 (en) | 2006-09-29 | 2007-09-14 | System and method for inductively charging a battery |
US11/855,710 | 2007-09-14 |
Related Parent Applications (1)
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JP2009529814A Division JP2010505379A (ja) | 2006-09-29 | 2007-09-20 | 電池を誘導充電するシステムおよび方法 |
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JP2013179829A JP2013179829A (ja) | 2013-09-09 |
JP5571820B2 true JP5571820B2 (ja) | 2014-08-13 |
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JP2009529814A Withdrawn JP2010505379A (ja) | 2006-09-29 | 2007-09-20 | 電池を誘導充電するシステムおよび方法 |
JP2013090327A Active JP5571820B2 (ja) | 2006-09-29 | 2013-04-23 | 電池を誘導充電するシステムおよび方法 |
JP2014081001A Pending JP2014135890A (ja) | 2006-09-29 | 2014-04-10 | 電池を誘導充電するシステムおよび方法 |
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Country Status (13)
Country | Link |
---|---|
US (3) | US8004235B2 (ja) |
EP (1) | EP2067233A2 (ja) |
JP (3) | JP2010505379A (ja) |
KR (4) | KR101540549B1 (ja) |
CN (2) | CN103107585B (ja) |
AU (1) | AU2007301585B2 (ja) |
CA (1) | CA2663251A1 (ja) |
HK (1) | HK1138118A1 (ja) |
MY (1) | MY151405A (ja) |
NZ (1) | NZ575393A (ja) |
RU (1) | RU2469452C2 (ja) |
TW (2) | TWI367617B (ja) |
WO (1) | WO2008038203A2 (ja) |
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