CN103928990B - 整合电辐射屏蔽及电容感测功能的无线充电器 - Google Patents
整合电辐射屏蔽及电容感测功能的无线充电器 Download PDFInfo
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Abstract
本发明提供一种整合电辐射屏蔽及电容感测功能的无线充电器,该无线充电器包含一充电模块、一电容感应器以及一控制单元。该充电模块包含一第一线圈、一摆设区以及一位于该第一线圈及该摆设区间的梳状屏蔽。该电容感应器与该梳状屏蔽连接,以检测该梳状屏蔽与周围环境间的电容变化量。当该无线充电器处于待机模式时,该梳状屏蔽用于感测电容;当该电容变化量超过一预设阈值且一无线充电的电子装置是置于该摆设区时,该控制单元将该无线充电器切换至一充电模式且该梳状屏蔽是用于屏蔽电辐射。
Description
技术领域
本发明是有关于一种无线充电器,尤指一种整合电辐射屏蔽与电容感测功能的无线充电器。
背景技术
现今,多种的家庭或其它用途的电器具有各种复杂的电子电路,此等电器多藉由电源线或使用电池充电以提供运作所需的电力。然而,电源线的长度限制了电器的使用范围,且多个电器的电源线容易因彼此缠绕而造成使用不便。因此,以感应式充电(意即无线充电)方式来提供电器电源实为趋势所向。感应式充电方式是基于电磁感应而得以实现,而无线充电中主要的问题即为电磁干扰(EMI,electromagneticinterference)。电磁干扰为一种常见的问题,其是因电磁辐射或电磁传导,扰乱或中断运行中的电器而影响其性能,感应式充电装置(无线充电器)的电辐射可能会干扰周围其它电子装置的运作。一般而言,标准的无线充电器会持续不断地发送呼叫信号(pingsignal),来识别该无线充电器上的充电平板上是否放置可供充电的装置;然而,此呼叫信号会造成了额外的电磁耐受性(EMS,electromagneticsusceptibility)问题。因此,目前仍尚待解决上述问题的方法。
发明内容
本发明一方面是提供一种无线充电器,其用以对一具有一第二线圈的电子装置进行充电,该无线充电器包含:一充电模块,其包含一电磁耦合于该第二线圈的第一线圈,一设于相对于该第一线圈的摆设区,以及一设置在介于该第一线圈及该摆设区间的梳状屏蔽;一电容感应器,其连接于该梳状屏蔽以检测该梳状屏蔽与周围环境间的电容变化量;以及一控制单元,其连接于该梳状屏蔽及该电容感应器并记录电容变化量;其中,当该电容变化量超过一预设的阈值时,该控制单元传输一呼叫信号至该电子装置,且若该电子装置响应该呼叫信号,则该控制单元将该充电模块由一待机模式切换至一充电模式以对该电子装置进行无线充电,并切换该梳状屏蔽连接至一接地端。
本发明另一方面是提供一种整合电辐射屏蔽及电容感测功能于一无线充电器的方法,该方法包含:(a)于一待机模式下,藉由与一梳状屏蔽连接的一电容感应器测量该无线充电器中的该梳状屏蔽与周围环境间的电容变化量;(b)当该电容变化量超过预设的阈值时,通过一控制单元传送一呼叫信号以确认一待充电的电子装置;(c)当接收到该呼叫信号的响应时,该无线充电器是处于一充电模式,切换该梳状屏蔽连接至一接地端并启动该无线充电器以执行无线充电;以及(d)当该电容变化量低于该预设的阈值时,该无线充电器切换至该待机模式。
为便于理解所揭露的各种不同的目的,用于达成上述技术目的、技术特征、以及技术效果而于本发明中所采用的技术是如以下的例示及附图所示。
附图说明
图1是本发明的无线充电器的一种实施态样示意图。
图2是本发明的无线充电器与可携式电子装置的示意图。
图3是图1的实施态样的操作流程图。
图4是一未装设梳状屏蔽的无线充电器于充电模式下发射电辐射的频谱图。
图5是一无线充电器装设有本发明的梳状屏蔽时于充电模式下发射电辐射的频谱图。
[标号说明]
100无线充电器10梳状屏蔽
11第一线圈12摆设区
13梳状屏蔽131平行段
132间隙14印刷电路板
20电容感应器30控制单元
31接地端32切换器
40电子装置41第二线圈
具体实施方式
以下兹就本发明的技术细节详述,惟本发明中的各种实施态样仅作为说明的用途,而本领域技术人员可知悉,该等实施态样于本发明的精神与范围内所进行的更动或修改,仍属本发明所界定的技术范畴。此外,本发明的图式是俾于直观理解其技术内容的用途,并非用以限制本发明。
图1为本发明无线充电器的示意图,图2为本发明的无线充电器100与一可携式设备的示意图。该无线充电器100用以对一电子装置40进行无线充电;在一般的情况下,该电子装置40内设有一第二线圈41以感应电磁场来传递电功率,并将接收到的电功率转换为电流以对该电子装置40内的电池充电。如图1所示:该无线充电器100包含一充电模块10、一电容感应器20以及一控制单元30。该充电模块10包含至少一第一线圈11、一摆设区12以及一梳状屏蔽13;该第一线圈11是电磁耦合于该电子装置40内的该第二线圈41,且该第一线圈11可连接于一电源供应器;该摆设区12是设置于相对该第一线圈11处,用以摆设该电子装置40以执行无线充电;且该梳状屏蔽13是介于该摆设区12以及该第一线圈11之间。
于本发明的实施态样中,该无线充电器100具有两种模式,即待机模式以及充电模式。于待机模式下,该梳状屏蔽13用以感测电容;而在充电模式下,该梳状屏蔽13是作为屏蔽电辐射的用途。是以,本发明的无线充电器100集成电辐射屏蔽与电容感测的功能。两种模式的转换详参下述。
该电容感应器20连接于该梳状屏蔽13以检测该梳状屏蔽13与周围环境的电容变化量。一般而言,该电容感应器20可直接感测电场。该电容感应器20是由一导体感测电极、一介电体以及用以感测电容变化量的感测电路所组成,且该电容感应器20可为一电容感测集成电路(integratedcircuit,IC)。于待机模式下,由于该梳状屏蔽13连接于该电容感应器20,而作为该电容感应器20的电极,若有一对象(电子装置40)靠近该梳状屏蔽13,则该梳状屏蔽13与周围环境的电容值即产生变化,且该电容变化量受该电容感应器20内的感测电路所检测。
该控制单元30连接于该梳状屏蔽13以及该电容感应器20,以记录/储存该电容变化量。当电容变化量超过预设的阈值时,该控制单元30即发送一呼叫信号予该电子装置40,因此,该呼叫信号的发射仅于该电子装置40靠近该控制单元30时才启动,若该电子装置40响应该呼叫信号,则该控制单元30将该充电模块10自待机模式切换至充电模式以对该电子装置40无线充电,并将该梳状屏蔽13切换以连接至一接地端31。
本发明的术语「呼叫信号」是指由一第一互动无线装置(于本发明中,所谓第一交互式无线设备即为控制单元30)所发射的任意种类的无线信号,以获得在该第一互动无线装置的特定范围内,一第二交互式无线装置(于本发明中,所谓第二交互式无线设备即为待充电的电子装置40)的信息。该呼叫信号典型的为一种短距信号,用以与第二交互式无线装置在一短距离中通讯,且可自控制单元30经由该第一线圈11所发送至该电子装置40。当该第二交互式无线设备位于可接收该呼叫信号的范围内,即以无线传输发送一响应信号,上述的响应信号可能包含了其它的信息,例如该电子装置40剩余电力或容量等。该第一交互式无线装置可依据第二交互式无线装置的残余的电力或电池内的电量,调整进行无线充电的时间。
本发明的术语「无线充电」,亦称作「感应式充电」,是指通过电磁场于两对象间传递能量(一为该无线充电器100,另一则为电子装置40)。能量经由线圈感应耦合至电子装置40,即可将能量用于对电池充电或供该电子装置40运作。典型地,该无线充电器100使用第一线圈11作为感应线圈以连接交流电(AC)电源供应器并在一可充电范围内产生一交流电磁场,且该电子装置40内的该第二线圈41经由电磁场接收功率且转换为电流对电子装置40内的电池进行充电,此二感应线圈(该第一线圈11、该第二线圈41)在邻近结合下形成一电气变压器。
于充电模式中执行无线充电时,该H场(magneticfield,即磁场)对该电子装置40充电,而该无线充电器100亦产生一E场(electronicfield,即电场),该E场辐射发散并干扰邻近于该无线充电器100的其它设备。该梳状屏蔽13作为一滤波器,藉以屏蔽该E场的电辐射,并且该梳状屏蔽13感应一磁场(H场)并耦合于该电子装置40。此外,可藉由该控制单元30将该梳状屏蔽13切换连接至该接地端31以提升其屏蔽效果,进而抑制源自E场的电辐射。若有一对象接近于该无线充电器100,并被该无线充电器100识别为无法进行无线充电,例如未响应该呼叫信号者,则该控制单元30保持该无线充电器100处于待机模式。该控制单元30可进一步包含一电性连接于该接地端31与该梳状屏蔽13的切换器32,于一较佳实施态样中,该切换器32为一晶体管。
该梳状屏蔽13,亦称作法拉第屏蔽(Faradayshielding),可为一金属片或金属箔,或其它适合作为电屏蔽的材质所构成,该梳状屏蔽13包含多个平行段131,以及多个介于两两该平行段131间的间隙132。于一较佳实施态样中,该梳状屏蔽13可印刷于一印刷电路板(PCB)14上以强化该梳状屏蔽13的结构,或减少金属材料的使用量。该梳状屏蔽13可覆盖于该第一线圈11的空间,且组合两个或以上的该梳状屏蔽13相对朝向相反方向(对应于该第一线圈11并彼此相对),且设置于该无线充电器100中的不同层,亦在本发明的范围内。
请参照图3,为一流程图以说明图1的实施态样的操作。如图3所示:当操作启动时200,该无线充电器100将设定于待机模式,如流程方块201所示。于待机模式下,该梳状屏蔽13是作为该电容感应器20的电容感测电极,藉由该电容感应器20测量该梳状屏蔽13与周围环境(如某一对象或该电子装置40)的电容变化量。因此,若一物体靠近该无线充电器100的摆设区12(如流程图块202),使电容量产生相应地变化,则该控制单元30检测该电容变化量是否已超出一预设阈值(流程图块203),若符合前述条件,该控制单元30即发送一呼叫信号(如流程图块204)予靠近该摆设区12的该对象以确认是否可对该对象进行充电。接续,若该对象是待充电且可适用于无线充电功能,则该对象发送回应信号予该控制单元30(流程图块205),而在该控制单元30接收到该响应信号的同时,其将该无线充电器100自待机模式切换至充电模式,而该控制单元30使该梳状屏蔽13连接至一接地端31,并启动该无线充电器100以执行无线充电(如流程图块206)。当无线充电完成后,该对象远离该梳状屏蔽13,而后电容变化量将小于预设的阈值,则该控制单元30切换该无线充电器100回到待机模式(如流程图块207)。
以此方式,本发明提供一种整合电辐射屏蔽以及电容感测功能的无线充电器100。因此,当该无线充电器100处于待机模式下,该控制单元30不需连续地传送该呼叫信号来确认是否有对象靠近该无线充电器100,而是将该梳状屏蔽13作为电容感测电极,通过该电容感应器20检测靠近的对象。此外,当该无线充电器100处于充电模式下,该梳状屏蔽13连接于接地端31而作为一滤波器。换言之,该梳状屏蔽13使该第一线圈11得以感应磁场于该第二线圈41(H场的磁力线可经由该间隙132通过该梳状屏蔽13),然而,伴随磁场而生的电场(E场)则受到屏蔽,从而抑制E场所发射的电辐射。
接着说明本发名的梳状屏蔽13的屏蔽能力。图4为未装设该梳状屏蔽13时,充电模块所发射的电辐射量的频谱图,而图5为本发明装设该梳状屏蔽13后的充电模块10所发射的电辐射量的频谱图,该梳状屏蔽13是设置于该充电模块与该电子装置之间。图4以及图5的实线代表电辐射的峰值,虚线则代表电辐射的均值。该梳状屏蔽13于图5是设置于该充电模块中第一线圈11的平行轴向。由图4可得知,其电辐射于频谱图中明显地超出了原始设备制造厂商提供的EMC(电磁兼容性)与EMI(电磁干扰)规格书的极限值,然而在图5中,仅有极少的波峰超出了极限值,证明本发明确有抑制E场发散电辐射的功效。
本发明是可应用于许多不同的技术领域中,例如汽车工业的构件、家用电器、消费性电子产品或医疗***中。
本发明已藉上述较佳具体实施态样进行详细说明,惟本发明并不限定于上述所举例的实施态样,凡在本发明所揭示的技术思想范围内,对该等结构作各种变化及修饰,该等变化及修饰仍属本发明的范围。
Claims (16)
1.一种无线充电器,其用以对一具有一第二线圈的电子装置进行充电,该无线充电器包含:
一充电模块,其包含一电磁耦合于该第二线圈的第一线圈,一设于相对于该第一线圈的摆设区,以及一设置在介于该第一线圈及该摆设区间的梳状屏蔽;
一电容感应器,其连接于该梳状屏蔽以检测该梳状屏蔽与周围环境间的电容变化量;以及
一控制单元,其连接于该梳状屏蔽及该电容感应器并记录电容变化量;
其中,当该电容变化量超过一预设的阈值时,该控制单元传输一呼叫信号至该电子装置,且若该电子装置响应该呼叫信号,则该控制单元将该充电模块由一待机模式切换至一充电模式以对该电子装置进行无线充电,并切换该梳状屏蔽连接至一接地端。
2.根据权利要求1所述的无线充电器,其中该控制单元进一步包含一电性连接于该接地端及该梳状屏蔽的切换器。
3.根据权利要求2所述的无线充电器,其中该切换器为一晶体管。
4.根据权利要求1所述的无线充电器,其中该呼叫信号是由控制单元通过该第一线圈发送。
5.根据权利要求1所述的无线充电器,其中该梳状屏蔽包含多个平行段。
6.根据权利要求1所述的无线充电器,其中该梳状屏蔽是一电路路径印刷于一印刷电路板上。
7.根据权利要求1所述的无线充电器,其中至少使用二个该梳状屏蔽,其是设置于该无线充电器的不同层中,且彼此方向相反。
8.根据权利要求1所述的无线充电器,其中在该待机模式下,该梳状屏蔽是作为该电容感应器的电极。
9.一种整合电辐射屏蔽及电容感测功能于一无线充电器的方法,该方法包含:
(a)于一待机模式下,藉由与一梳状屏蔽连接的一电容感应器测量该无线充电器中的该梳状屏蔽与周围环境间的电容变化量;
(b)当该电容变化量超过预设的阈值时,通过一控制单元传送一呼叫信号以确认一待充电的电子装置;
(c)当接收到该呼叫信号的响应时,该无线充电器是处于一充电模式,切换该梳状屏蔽连接至一接地端并启动该无线充电器以执行无线充电;以及
(d)当该电容变化量低于该预设的阈值时,该无线充电器切换至该待机模式。
10.根据权利要求9所述的方法,其中该无线充电器连接于一控制器以记录该电容变化量并执行该待机模式及该充电模式之间的切换。
11.根据权利要求9所述的方法,其中该电容感应器为一电容感应器集成电路。
12.根据权利要求9所述的方法,其中该控制单元进一步包含一电性连接于该接地端及该梳状屏蔽的切换器。
13.根据权利要求12所述的方法,其中该切换器为一晶体管。
14.根据权利要求9所述的方法,其中该梳状屏蔽包含多个平行段。
15.根据权利要求9所述的方法,其中该梳状屏蔽一电路路径印刷于一印刷电路板上。
16.根据权利要求9所述的方法,其中至少使用二个该梳状屏蔽,其是设置于该无线充电器的不同层中,且彼此方向相反。
Applications Claiming Priority (2)
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US13/742,159 | 2013-01-15 |
Publications (2)
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Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9385787B2 (en) * | 2014-01-29 | 2016-07-05 | Nokia Technologies Oy | Communications via wireless charging |
KR20180069107A (ko) | 2014-02-23 | 2018-06-22 | 애플 인크. | 유도 전력 전송 시스템의 임피던스 매칭 |
KR20160119842A (ko) | 2014-02-23 | 2016-10-14 | 애플 인크. | 결합 코일 시스템의 조정 필터 |
US10032557B1 (en) | 2014-05-29 | 2018-07-24 | Apple Inc. | Tuning of primary and secondary resonant frequency for improved efficiency of inductive power transfer |
US9537353B1 (en) | 2014-06-03 | 2017-01-03 | Apple Inc. | Methods for detecting mated coils |
US9685814B1 (en) | 2014-06-13 | 2017-06-20 | Apple Inc. | Detection of coil coupling in an inductive charging system |
US9813041B1 (en) | 2014-07-31 | 2017-11-07 | Apple Inc. | Automatic boost control for resonant coupled coils |
US10014733B2 (en) | 2014-08-28 | 2018-07-03 | Apple Inc. | Temperature management in a wireless energy transfer system |
US10193372B2 (en) | 2014-09-02 | 2019-01-29 | Apple Inc. | Operating an inductive energy transfer system |
USRE49437E1 (en) | 2014-09-30 | 2023-02-28 | Apple Inc. | Audio driver and power supply unit architecture |
KR102049052B1 (ko) | 2014-09-30 | 2019-11-27 | 애플 인크. | 라우드스피커 |
US9837847B2 (en) * | 2014-10-28 | 2017-12-05 | Lite-On Technology Corporation | Wireless charging transmitter and method thereof |
KR102342855B1 (ko) * | 2015-03-05 | 2021-12-22 | 지이 하이브리드 테크놀로지스, 엘엘씨 | 무선 전력 전송 시스템에서 코일 위치 조절 방법 및 그 장치 |
US20160261137A1 (en) * | 2015-03-06 | 2016-09-08 | Mediatek Inc. | Wireless charging transmitter using capacitive sensing for device detection |
DE102015207995A1 (de) * | 2015-04-30 | 2016-11-03 | Siemens Aktiengesellschaft | Antenne, induktive Ladeeinrichtung, Elektrofahrzeug, Ladestation und Verfahren zum induktiven Laden |
US10666084B2 (en) | 2015-07-10 | 2020-05-26 | Apple Inc. | Detection and notification of an unpowered releasable charging device |
US10424962B2 (en) * | 2015-09-30 | 2019-09-24 | Apple Inc. | Charging assembly for wireless power transfer |
KR20170054072A (ko) * | 2015-11-09 | 2017-05-17 | 삼성전자주식회사 | 액세서리 장치를 감지하는 전자장치 및 그의 동작 방법 |
WO2017171702A1 (en) * | 2016-03-28 | 2017-10-05 | Hewlett-Packard Development Company, L.P. | Wireless charging device |
US10128698B2 (en) * | 2016-06-20 | 2018-11-13 | Hyundai America Technical Center, Inc | Device and method for detecting an object within a wireless charging region |
US10644531B1 (en) | 2016-09-22 | 2020-05-05 | Apple Inc. | Adaptable power rectifier for wireless charger system |
US10257608B2 (en) | 2016-09-23 | 2019-04-09 | Apple Inc. | Subwoofer with multi-lobe magnet |
EP3411889A1 (en) * | 2016-09-23 | 2018-12-12 | Apple Inc. | Electromagnetic shielding for wireless power transfer systems |
US10631071B2 (en) | 2016-09-23 | 2020-04-21 | Apple Inc. | Cantilevered foot for electronic device |
US10910862B2 (en) | 2016-09-23 | 2021-02-02 | Apple Inc. | Electromagnetic shielding for wireless power transfer systems |
US10561049B2 (en) * | 2016-10-28 | 2020-02-11 | Integrated Device Technology, Inc. | Interference filter for wireless power transfer systems |
US10389274B2 (en) | 2017-04-07 | 2019-08-20 | Apple Inc. | Boosted output inverter for electronic devices |
US10523063B2 (en) | 2017-04-07 | 2019-12-31 | Apple Inc. | Common mode noise compensation in wireless power systems |
CN107733011A (zh) * | 2017-10-12 | 2018-02-23 | 北京奥特易电子科技有限责任公司 | 一种车载无线充电装置 |
CN110829621A (zh) * | 2018-08-09 | 2020-02-21 | 法雷奥舒适驾驶助手公司 | 无线充电装置和用于控制无线充电装置的方法 |
WO2020066081A1 (ja) * | 2018-09-27 | 2020-04-02 | 株式会社村田製作所 | ワイヤレス給電システム |
US10938255B2 (en) | 2018-12-28 | 2021-03-02 | Integrated Device Technology, Inc. | Wireless power transmission using a capacitive sensor |
US11056930B2 (en) | 2019-05-31 | 2021-07-06 | Sigmasense, Llc. | Wireless power transfer and communications |
KR20210030739A (ko) | 2019-09-10 | 2021-03-18 | 삼성전자주식회사 | 무선 충전 기능을 제공하는 전자 장치 및 그의 동작 방법 |
CN111245055B (zh) * | 2020-02-27 | 2022-05-20 | 维沃移动通信有限公司 | 一种电路控制装置及方法 |
CN111525711B (zh) * | 2020-06-10 | 2024-03-12 | 上海创功通讯技术有限公司 | 支持无线充电功能的电子设备及无线充电*** |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101605448A (zh) * | 2008-06-11 | 2009-12-16 | 联发科技股份有限公司 | 屏蔽装置以及具有屏蔽保护的印刷电路板 |
CN102089954A (zh) * | 2008-07-09 | 2011-06-08 | 捷通国际有限公司 | 无线充电*** |
US8040142B1 (en) * | 2006-03-31 | 2011-10-18 | Cypress Semiconductor Corporation | Touch detection techniques for capacitive touch sense systems |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2607292Y2 (ja) * | 1993-08-25 | 2001-05-28 | 松下電工株式会社 | 電源装置 |
JP2005176307A (ja) * | 2003-11-19 | 2005-06-30 | Matsushita Electric Ind Co Ltd | アンテナ素子及びそれを用いたループアンテナ並びに無線通信媒体処理装置 |
DE602005013635D1 (de) * | 2005-02-04 | 2009-05-14 | Research In Motion Ltd | Vorrichtung und Verfahren für das Aufladen einer Batterie über kapazitiver Kopplung |
JP4788693B2 (ja) * | 2007-09-26 | 2011-10-05 | セイコーエプソン株式会社 | 構造物 |
CA2739071A1 (en) * | 2008-10-03 | 2010-04-08 | Access Business Group International Llc | Power system |
KR20100074595A (ko) * | 2008-12-24 | 2010-07-02 | 삼성전자주식회사 | 무선 충전 시스템 및 방법 |
US9161484B2 (en) * | 2010-09-26 | 2015-10-13 | Access Business Group International Llc | Selectively controllable electromagnetic shielding |
JP5605153B2 (ja) * | 2010-10-15 | 2014-10-15 | ソニー株式会社 | 給電装置、給電方法および給電システム |
KR101243587B1 (ko) * | 2011-02-17 | 2013-03-20 | 주식회사 팬택 | 무접점 충전 장치, 무접점 충전 시스템 및 무접점 충전 방법 |
JP5701702B2 (ja) * | 2011-07-01 | 2015-04-15 | シャープ株式会社 | 充電台、該充電台を制御する充電台制御端末、充電台の制御方法、充電台制御端末の制御方法、充電台制御プログラム、充電台制御端末制御プログラム、および記録媒体 |
US9230732B2 (en) * | 2012-01-17 | 2016-01-05 | Texas Instruments Incorporated | Wireless power transfer |
-
2013
- 2013-01-15 US US13/742,159 patent/US20140197782A1/en not_active Abandoned
- 2013-02-15 JP JP2013027239A patent/JP5939639B2/ja active Active
- 2013-02-28 KR KR1020130021669A patent/KR101959088B1/ko active IP Right Grant
- 2013-04-25 CN CN201310148457.2A patent/CN103928990B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8040142B1 (en) * | 2006-03-31 | 2011-10-18 | Cypress Semiconductor Corporation | Touch detection techniques for capacitive touch sense systems |
CN101605448A (zh) * | 2008-06-11 | 2009-12-16 | 联发科技股份有限公司 | 屏蔽装置以及具有屏蔽保护的印刷电路板 |
CN102089954A (zh) * | 2008-07-09 | 2011-06-08 | 捷通国际有限公司 | 无线充电*** |
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