WO2014166204A1 - 无线充电装置和方法 - Google Patents

无线充电装置和方法 Download PDF

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Publication number
WO2014166204A1
WO2014166204A1 PCT/CN2013/083376 CN2013083376W WO2014166204A1 WO 2014166204 A1 WO2014166204 A1 WO 2014166204A1 CN 2013083376 W CN2013083376 W CN 2013083376W WO 2014166204 A1 WO2014166204 A1 WO 2014166204A1
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Prior art keywords
wireless charging
matching circuit
circuit
dynamic
control
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PCT/CN2013/083376
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English (en)
French (fr)
Inventor
顾云峰
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ZTE Corp
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ZTE Corp
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Priority to EP13881848.9A priority Critical patent/EP3012940A4/en
Priority to JP2016528293A priority patent/JP2016527859A/ja
Priority to US14/906,270 priority patent/US9893558B2/en
Publication of WO2014166204A1 publication Critical patent/WO2014166204A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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—ELECTRIC POWER NETWORKS; 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

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a wireless charging apparatus and method.
  • Electromagnetic induction technology is based on its advantages in terms of efficiency, cost, safety, etc. It is currently widely used in the field of consumer electronics.
  • the existing products are basically wireless charging technologies based on electromagnetic induction technology.
  • WPC International Wireless Power Consortium
  • PMA Power Matters Alliance
  • WPC Wireless Power Consortium
  • Qi Electromagnetic induction technology has a history of 100 years. Because there is no contact point, it has high safety and reliability in harsh environments. In terms of technical specifications, the power supply distance is less than one centimeter, and the transmission end can transmit power to the receiving end.
  • PMA Power Matters Alliance
  • WPC and PMA are both wireless charging standards based on electromagnetic induction technology, but communication protocols, transmission The technical details of the transmission frequency and so on are different.
  • WPC is widely used in Asia and Europe; PMA is being promoted on a large scale in North America.
  • the present invention provides a wireless charging apparatus and method that solves the problem of wireless charging using different wireless charging standards.
  • a wireless charging device includes a receiving coil, the receiving coil is connected with a dynamic matching circuit, the dynamic matching circuit includes a control circuit and at least one matching circuit; the control circuit is connected to the at least one matching circuit;
  • the control circuit is configured to: transmit a control signal that controls the at least one matching circuit to be turned on and off.
  • the matching circuit comprises the following types:
  • the device further comprises a wireless charging receiving circuit
  • the wireless charging receiving circuit is configured to: connect to a control circuit of the dynamic matching circuit through a control line;
  • the wireless charging receiving circuit is configured to: send a control signal to the dynamic matching circuit through the control line to control the dynamic matching circuit to select a matching circuit from the at least one matching circuit to be turned on.
  • control circuit is configured to: switch that switches between the at least one matching circuit, the matching circuit is turned on when the switch switches a matching circuit.
  • control circuit is a tunable capacitor.
  • the dynamic matching circuit includes at least two matching circuits.
  • the invention also provides a wireless charging method, comprising:
  • the wireless charging receiving circuit sends a control signal to the dynamic matching circuit, instructing the dynamic matching circuit to select a corresponding matching circuit from at least one matching circuit to be turned on; and the dynamic matching circuit switches the corresponding signal according to the control signal. Circuit, start charging.
  • the method further includes:
  • the wireless charging receiving circuit generates the control signal according to the handshake information.
  • the dynamic matching circuit represents a high and low potential of the digital signal by changing the transmission frequency
  • the digital signal carries the handshake information.
  • the wireless charging receiving circuit generates the control signal according to the handshake information, including:
  • the wireless charging receiving circuit determines a wireless charging standard corresponding to the received handshake information, and determines a type of matching circuit required;
  • the wireless charging receiving circuit generates the control signal, and a matching circuit selected by the control circuit is indicated in the control signal.
  • Embodiments of the present invention provide a wireless charging apparatus and method, wherein a receiving circuit of the wireless charging apparatus is connected with a dynamic matching circuit, the dynamic matching circuit includes a control circuit and at least one matching circuit; and the control circuit and the at least A matching circuit is connected, the control circuit is configured to transmit a control signal for controlling the at least one matching circuit to be turned on and off, and the dynamic matching circuit switches between matching circuits of different wireless charging standard types according to the control signal, and selects an appropriate matching.
  • the circuit is switched on and used to realize a flexible wireless charging mechanism, which solves the problem of wireless charging using different wireless charging standards.
  • FIG. 1 is a schematic structural view of a wireless charging device
  • FIG. 2 is a block diagram showing the working principle of the wireless charging receiving terminal
  • FIG. 3 is a schematic structural diagram of a wireless charging apparatus according to Embodiment 1 of the present invention
  • 4 is a schematic structural view of a dynamic matching circuit of a switch type control circuit
  • FIG. 5 is a schematic structural diagram of a dynamic matching circuit of a control circuit in the form of a tunable capacitor
  • FIG. 6 is a flowchart of a wireless charging method according to Embodiment 2 of the present invention. Preferred embodiment of the invention
  • the wireless charging technology represented by electromagnetic induction is the current mainstream wireless charging technology. Both WPC and PMA use electromagnetic induction technology.
  • the basic structure is shown in Figure 1. One is the transmitting end, and the other is the receiving terminal. The electrical energy is exchanged between the terminal and the receiving terminal through the induction coil.
  • the block diagram of the receiving terminal is shown in Figure 2.
  • the receiving coil receives the power and transmits it to the receiving circuit.
  • the front end of the receiving circuit has a matching circuit. By adjusting the matching circuit, the receiving circuit is in an optimal receiving state, and the transmission efficiency is maximized.
  • the receiving circuit completes the functions of rectifying voltage regulation and the like, and outputs a stable DC power source used for charging the mobile phone terminal.
  • the matching circuit is very important.
  • the receiving efficiency of the wireless charging can reach the maximum value only by adjusting the matching so that the receiving circuit is in an optimal working state.
  • the matching circuit is different.
  • the transmission frequency is different, and the matching circuit is different.
  • WPC and PMA are currently available in different regions. WPC is used more in Asia and Europe; PMA is more widely promoted in North America. Currently, there is a demand for compatibility between WPC and PMA, and it is compatible with both WPC and PMA on the same terminal.
  • WPC is the mainstay
  • PMA is the auxiliary
  • WPC matching circuit is used, WPC is in the optimal working state, PMA is inefficient
  • PMA is the main
  • WPC is the auxiliary
  • PMA matching circuit is used, PMA is the most Excellent working condition, WPC is inefficient.
  • embodiments of the present invention provide a wireless charging apparatus and method.
  • the embodiment of the invention provides a wireless charging device, which has the structure shown in FIG. 3, and includes: a coil, a dynamic matching circuit, and a wireless charging receiving circuit.
  • the dynamic matching circuit includes a control circuit and at least one matching circuit; the control circuit is connected to the at least one matching circuit;
  • the control circuit is configured to transmit a control signal that controls switching of the at least one matching circuit.
  • the matching circuit comprises the following types:
  • the device further comprises a wireless charging receiving circuit
  • the wireless charging receiving circuit is connected to the control circuit of the dynamic matching circuit through a control line; the wireless charging receiving circuit sends a control signal to the dynamic matching circuit through the control line to control the dynamic matching circuit from the Selecting a matching circuit from at least one of the matching circuits is turned on.
  • the dynamic matching circuit comprises at least two matching circuits.
  • the receiving coil is both a wireless charging energy receiving carrier and a channel for information transmission during wireless charging; the dynamic matching circuit module realizes dynamic adjustment of the matching circuit under different standards of WPC or PMA, and uses WPC matching in WPC mode, in PMA mode. PMUse PMA matching to make wireless charging the most efficient. Current wireless charging receiving circuits are simple to process and do not require the addition of additional entities.
  • the wireless charging receiving circuit module processes the information sent by the receiving coil, determines whether the current mode is in the WPC mode or the PMA mode according to the received information, controls the dynamic matching circuit module according to the determination result, adjusts the matching circuit, and receives the wireless energy. After the processing is completed, a stable DC voltage is output for charging the mobile terminal.
  • the control circuit is specifically a switch that can be switched between the at least one matching circuit, and the matching circuit is turned on when the switch switches a matching circuit.
  • the control circuit is specifically a switch that can be switched between the at least one matching circuit, and the matching circuit is turned on when the switch switches a matching circuit.
  • you can switch between different matching channels through the switch in WPC In the mode, the switch is switched to the A channel, and the A match is called; in the PMA mode, the switch is switched to the B channel, and the B match is called.
  • the control circuit can also be a tunable capacitor. As shown in FIG. 5, through the adjustable capacitor, the tunable capacitor is controlled and adjusted by the wireless charging receiving circuit in different modes, so that the matching circuit is optimal.
  • Embodiments of the present invention provide a wireless charging method.
  • the following is an example in which the dynamic matching circuit has a WPC matching circuit and a PMA matching circuit as an example.
  • the flow of the first embodiment of the present invention is as shown in FIG. 6, and includes:
  • Step 601 The receiving coil sends the received handshake information to the wireless charging receiving circuit via the dynamic matching circuit.
  • the dynamic matching circuit represents a high and low potential of the digital signal by a change of the transmission frequency, and the digital signal carries The handshake information.
  • Step 602 The wireless charging receiving circuit generates the control signal according to the handshake information.
  • WPC and PMA are two different wireless charging standards.
  • the operating frequencies of the two are different.
  • the communication content between the transmitting end and the receiving end is different.
  • the wireless charging receiving circuit module can determine the current charging environment according to the difference between WPC and PMA. Whether it is WPC mode or PMA mode.
  • the wireless charging receiving circuit determines the charging mode corresponding to the received handshake information (i.e., the wireless charging standard used), and then generates the control signal according to the determined charging mode.
  • the wireless charging receiving circuit When the wireless charging receiving circuit recognizes the WPC mode, the wireless charging receiving circuit controls the dynamic matching circuit so that the WPC wireless charging is in an optimal working state to realize high-efficiency WPC wireless charging transmission; when the wireless charging receiving circuit recognizes the PMA mode The wireless charging receiving circuit controls the dynamic matching circuit, so that the PMA wireless charging is in an optimal working state to realize high-efficiency PMA wireless charging transmission.
  • Step 603 The wireless charging receiving circuit sends a control signal to the dynamic matching circuit, instructing the dynamic matching circuit to select a corresponding matching circuit from at least one matching circuit to be turned on; In this step, the matching circuit type to which the electromagnetic wave received by the receiving coil is applied is indicated in the control signal.
  • Step 604 The dynamic matching circuit switches the corresponding circuit according to the control signal to start charging.
  • the technical solution provided by the embodiments of the present invention can also be extended to other similar electromagnetic induction wireless charging technologies, and can be compatible with coexistence of wireless charging technologies other than WPC and ⁇ mentioned herein to achieve high efficiency wireless charging.
  • all or part of the steps of the foregoing embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the invention is not limited to any particular combination of hardware and software.
  • the various devices/function modules/functional units in the above embodiments may be implemented using a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • Each device/function module/functional unit in the above embodiments can be stored in a computer readable storage medium when implemented in the form of a software function module and sold or used as a standalone product.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • Embodiments of the present invention provide a wireless charging apparatus and method, the receiving coil of the wireless charging apparatus is connected with a dynamic matching circuit, the dynamic matching circuit includes a control circuit and at least one matching circuit; the control circuit and the At least one matching circuit is connected, the control circuit is configured to transmit a control signal for controlling the switching of the at least one matching circuit, and the dynamic matching circuit switches between matching circuits of different wireless charging standard types according to the control signal, and selects an appropriate one.
  • the matching circuit is switched on and used to realize a flexible wireless charging mechanism, which solves the problem of wireless charging using different wireless charging standards.
  • Wireless charging can be achieved through dynamic matching circuit. It can efficiently transmit wireless charging under both WPC standard and PMA standard. It is compatible with WPC and PMA standards on the same mobile phone terminal. It effectively solves the problem of coexistence compatibility between WPC and PMA, enabling efficient wireless charging in both WPC and PMA modes.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种无线充电装置和方法。该装置包括：接收线圈，连接有动态匹配电路；动态匹配电路包括控制电路和至少一种匹配电路；控制电路与至少一种匹配电路均相连；控制电路设置为：传输控制至少一种匹配电路通断的控制信号。该装置和方法解决了使用不同无线充电标准进行无线充电的问题，实现了灵活的无线充电机制。

Description

无线充电装置和方法
技术领域
本发明涉及移动通信领域， 尤其涉及一种无线充电装置和方法。
背景技术
目前， 移动终端被运用的越来越广泛， 终端的功能已经非常强大， 充满 丰富的娱乐性， 可以听歌， 可以看电视， 可以上网等等。 在使用移动终端的 过程中， 由于电池容量的局限性， 人们发现电池的电量很快就使用完， 经常 需要对电池充电。 以电磁感应为代表的无线充电技术的出现， 给消费者带来 了方便。通过无线充电设备可以方便给手机充电，让消费者摆脱了线的束缚。
实现无线充电的原理有很多， 例如电磁感应， 共振， RF传输等等。 电磁 感应技术基于在效率、 成本、 安全等方面的优势， 目前在消费电子领域得到 广泛的应用。 已有的产品基本都是釆用以电磁感应技术为基础的无线充电技 术。 为了推动电磁感应无线充电技术的快速发展， 国际上目前成立了无线充 电联盟 WPC ( Wireless Power Consortium ) 和电源事务联盟 PMA(Power Matters Alliance)两个组织。
无线充电联盟（ Wireless Power Consortium ) , 简称 WPC, 成立于 2008 年， 是业界第一个推动无线充电技术标准化的组织。 WPC以安全性、 充电效 率为出发点， 釆用近距离电磁感应技术作为低功耗便携式电子设备充电的国 际标准， 标示定义为 Qi。 电磁感应技术具有百年历史， 由于没有接触点， 在 严酷的环境下也有高安全性和可靠性，在技术规范上，供电距离小于一公分， 在发送端可以向接受端集中传输电能。
电源事务联盟 PMA(Power Matters Alliance)是由 Duracell Powermat公司 发起， 以电磁感应为基础的无线充电标准。 2012 年， AT&T, google, 星巴 克等等行业巨头先后加入 PMA组织中，致力于推广基于 PMA标准的无线充 电技术， 目前在北美市场有较多的应用。
WPC和 PMA都是基于电磁感应技术的无线充电标准， 但通讯协议， 传 输频率等等技术细节不同。 WPC在亚洲和欧洲有广泛的使用； PMA在北美 正进行大规模的推广。
发明内容
本发明提供了一种无线充电装置和方法， 解决了使用不同无线充电标准 进行无线充电的问题。
一种无线充电装置，包括接收线圈，所述接收线圈连接有动态匹配电路， 所述动态匹配电路包括控制电路和至少一种匹配电路； 所述控制电路与所述 至少一种匹配电路均相连；
所述控制电路设置为：传输控制所述至少一种匹配电路通断的控制信号。 优选的， 所述匹配电路包含以下类型：
WPC匹配电路和 PMA匹配电路。
优选的， 该装置还包括无线充电接收电路；
所述无线充电接收电路设置为： 通过控制线连接至所述动态匹配电路的 控制电路；
所述无线充电接收电路设置为： 通过所述控制线向所述动态匹配电路发 送控制信号， 以控制所述动态匹配电路从所述至少一种匹配电路中选择一匹 配电路接通。
优选的， 所述控制电路设置为： 在所述至少一种匹配电路之间切换的开 关， 当所述开关切换一匹配电路时该匹配电路接通。
优选的， 所述控制电路为可调电容。
优选的， 所述动态匹配电路包含至少两种匹配电路。
本发明还提供了无线充电方法， 包括：
无线充电接收电路向所述动态匹配电路发送控制信号， 指示所述动态匹 配电路从至少一种匹配电路中选择相应的匹配电路接通； 所述动态匹配电路根据所述控制信号切换接通相应的电路， 开始充电。 优选的， 无线充电接收电路向所述动态匹配电路发送控制信号的步骤之 前， 还包括：
接收线圈将接收到的握手信息经由所述动态匹配电路发送至所述无线充 电接^:电路；
所述无线充电接收电路根据所述握手信息， 生成所述控制信号。
优选的， 所述接收线圈将接收到的握手信息经由所述动态匹配电路发送 至所述无线充电接收电路时， 所述动态匹配电路通过传输频率的改变来代表 数字信号的高低电位， 以所述数字信号承载所述握手信息。
优选的， 所述无线充电接收电路根据所述握手信息， 生成所述控制信号 包括：
所述无线充电接收电路判断接收到的握手信息对应的无线充电标准， 确 定需要的匹配电路的类型；
所述无线充电接收电路生成所述控制信号， 在所述控制信号中指示控制 电路选择的匹配电路。
本发明实施例提供了一种无线充电装置和方法， 该无线充电装置的接收 线圈连接有动态匹配电路， 所述动态匹配电路包括控制电路和至少一种匹配 电路； 所述控制电路与所述至少一种匹配电路均相连， 所述控制电路用于传 输控制所述至少一种匹配电路通断的控制信号， 动态匹配电路根据控制信号 在不同无线充电标准类型的匹配电路间切换，选择合适的匹配电路接通使用， 动实现了灵活的无线充电机制， 解决了使用不同无线充电标准进行无线充电 的问题。 附图概述
图 1为无线充电装置的结构示意图；
图 2为无线充电接收终端工作原理框图；
图 3为本发明的实施例一提供的一种无线充电装置的结构示意图； 图 4为釆用开关形式控制电路的动态匹配电路的结构示意图；
图 5为釆用可调电容形式控制电路的动态匹配电路的结构示意图； 图 6为本发明的实施例二提供的一种无线充电方法的流程图。 本发明的较佳实施方式
以电磁感应为代表的无线充电技术是当前主流的无线充电技术， 无论是 WPC还是 PMA都是釆用电磁感应技术， 其基本结构如图 1所示， 一个是发 送端， 一个是接收终端， 发送端和接收终端之间通过感应线圈实现电能的传 替。接收终端原理框图如图 2所示，接收线圈接收到电量后传递至接收电路； 接收电路的前端有一个匹配电路， 通过调整匹配电路， 使接收电路处于最优 的接收状态， 传输效率达到最大， 接收电路完成整流稳压等等功能， 输出作 为手机终端充电使用的稳定的直流电源。 匹配电路很重要， 只有通过调整匹 配使接收电路处于最优工作状态， 无线充电的接收效率才能达到最大值。 不 同的无线充电电路，匹配电路是不一样的。 WPC和 PMA在实际应用过程中， 传输的频率不一样， 匹配电路也不一样。
WPC和 PMA目前在不同地域都有应用。 WPC在亚洲、欧洲使用比较多； PMA在北美推广比较大。 目前市场有 WPC和 PMA都兼容的需求， 在同一 个终端上同时兼容 WPC和 PMA。
当前的技术， 为了在同一个终端上兼容 WPC和 PMA, 匹配电路的设计 或者釆用 WPC和 PMA的平衡点， 使得 WPC和 PMA都能高效率的工作， 但都不是处于最优的工作状态； 或者以 WPC为主， PMA为辅， 釆用 WPC 的匹配电路， WPC 处于最优工作状态， PMA 的工作效率低； 或者以 PMA 为主， WPC为辅， 釆用 PMA的匹配电路， PMA处于最优工作状态， WPC 的工作效率低。
为了解决上述技术问题， 兼容 WPC和 PMA这两个无线充电标准， 本发 明的实施例提供了一种无线充电装置和方法。
首先结合附图， 对本发明的实施例一进行说明。 本发明实施例提供了一种无线充电装置， 其结构如图 3所示， 包括： 线 圈， 动态匹配电路， 无线充电接收电路。
所述动态匹配电路包括控制电路和至少一种匹配电路； 所述控制电路与 所述至少一种匹配电路均相连；
所述控制电路用于传输控制所述至少一种匹配电路通断的控制信号。 优选的， 所述匹配电路包含以下类型：
WPC匹配电路和 PMA匹配电路。
优选的， 该装置还包括无线充电接收电路；
所述无线充电接收电路通过控制线连接至所述动态匹配电路的控制电路; 所述无线充电接收电路通过所述控制线向所述动态匹配电路发送控制信 号， 以控制所述动态匹配电路从所述至少一种匹配电路中选择一匹配电路接 通。
优选的， 该动态匹配电路包含至少两种匹配电路。
本发明实施例中， 以通过增加动态匹配电路模块使得无线充电在 WPC 和 PMA下都能高效工作为例进行说明。 在存在两种以上匹配电路（均对应 不同的无线充电标准） 时， 使用本发明的实施例提供的技术方案实现在匹配 电路间选择切换的原理相同。
接收线圈既是无线充电能量接收载体， 也是无线充电过程中信息传输的 通道；动态匹配电路模块实现在 WPC或者 PMA不同标准下匹配电路的动态 调整， 在 WPC模式釆用 WPC的匹配， 在 PMA模式下釆用 PMA的匹配， 使得无线充电效率最高。目前的无线充电接收电路是具有简单的处理能力的， 可以不需要增加额外的实体。 无线充电接收电路模块处理接收线圈发送来的 信息，根据接收到的信息判定当前的模式是出于 WPC模式还是出于 PMA模 式， 根据判定结果控制动态匹配电路模块， 调整匹配电路， 接收无线能量， 处理完成后输出稳定的直流电压供手机终端充电。
其中， 动态匹配电路的实现方式有很多种。 如： 所述控制电路具体为可 在所述至少一种匹配电路之间切换的开关， 当所述开关切换一匹配电路时该 匹配电路接通。 如图 4 所示， 可以通过开关切换不同的匹配通道， 在 WPC 模式下开关切换到 A通道，调用 A匹配；在 PMA模式下开关切换到 B通道， 调用 B匹配。
所述控制电路亦可为可调电容， 如图 5所示， 通过可调电容， 在不同的 模式下， 通过无线充电接收电路控制并调整可调电容， 使得匹配电路最优。
下面结合附图， 对本发明的实施例二进行说明。
本发明实施例提供了一种无线充电方法。下面以动态匹配电路具有 WPC 匹配电路和 PMA匹配电路两种情况为例进行说明。 结合本发明的实施例一 的流程如图 6所示， 包括：
步骤 601、 接收线圈将接收到的握手信息经由所述动态匹配电路发送至 所述无线充电接收电路；
所述接收线圈将接收到的握手信息经由所述动态匹配电路发送至所述无 线充电接收电路时， 所述动态匹配电路通过传输频率的改变来代表数字信号 的高低电位， 以所述数字信号承载所述握手信息。
步骤 602、 无线充电接收电路根据所述握手信息， 生成所述控制信号；
WPC和 PMA是两种不同的无线充电标准， 两者的工作频率不同， 发送 端和接受端之间通信内容也不同， 无线充电接收电路模块可以根据 WPC和 PMA的差异判定当前所处的充电环境是 WPC模式还是 PMA模式。
本步骤中，无线充电接收电路判断接收到的握手信息对应的充电模式（即 釆用的无线充电标准） ， 然后根据判断的充电模式生成所述控制信号。
当无线充电接收电路识别为 WPC模式时， 无线充电接收电路控制动态 匹配电路，使得 WPC无线充电处在最佳工作状态， 实现高效率的 WPC无线 充电传输； 当无线充电接收电路识别为 PMA模式时， 无线充电接受电路控 制动态匹配电路，使得 PMA无线充电处在最佳工作状态，实现高效率的 PMA 无线充电传输。
步骤 603、 无线充电接收电路向所述动态匹配电路发送控制信号， 指示 所述动态匹配电路从至少一种匹配电路中选择相应的匹配电路接通； 本步骤中， 在该控制信号中指示了接收线圈接收到的电磁波适用的匹配 电路类型。
步骤 604、 所述动态匹配电路根据所述控制信号切换接通相应的电路， 开始充电。
本发明的实施例提供的技术方案也可以扩展到其他类似电磁感应无线充 电技术， 可以兼容共存除了本文提及 WPC和 ΡΜΑ之外的无线充电技术， 实 现高效率的无线充电。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计 算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中， 所述计算机程序在相应的硬件平台上（如系统、设备、装置、 器件等）执行， 在执行时， 包括方法实施例的步骤之一或其组合。
可选地， 上述实施例的全部或部分步骤也可以使用集成电路来实现， 这 些步骤可以被分别制作成一个个集成电路模块， 或者将它们中的多个模块或 步骤制作成单个集成电路模块来实现。 这样， 本发明不限制于任何特定的硬 件和软件结合。
上述实施例中的各装置 /功能模块 /功能单元可以釆用通用的计算装置来 实现， 它们可以集中在单个的计算装置上， 也可以分布在多个计算装置所组 成的网络上。
上述实施例中的各装置 /功能模块 /功能单元以软件功能模块的形式实现 并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。 上述提到的计算机可读取存储介质可以是只读存储器， 磁盘或光盘等。
任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易想 到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护范 围应以权利要求所述的保护范围为准。
工业实用性 本发明的实施例提供了一种无线充电装置和方法， 该无线充电装置的接 收线圈连接有动态匹配电路， 所述动态匹配电路包括控制电路和至少一种匹 配电路； 所述控制电路与所述至少一种匹配电路均相连， 所述控制电路用于 传输控制所述至少一种匹配电路通断的控制信号， 动态匹配电路根据控制信 号在不同无线充电标准类型的匹配电路间切换， 选择合适的匹配电路接通使 用， 动实现了灵活的无线充电机制， 解决了使用不同无线充电标准进行无线 充电的问题。
通过动态匹配电路可以实现无线充电无论是在 WPC标准下还是在 PMA 标准下都能高效率的无线充电传输， 在同一个手机终端上有效兼容了 WPC 和 PMA标准。有效的解决了 WPC和 PMA共存兼容问题，可以实现在 WPC 和 PMA模式下都可以进行高效率的无线充电。

Claims

权 利 要 求 书
1、 一种无线充电装置， 包括接收线圈， 其中， 所述接收线圈连接有动态 匹配电路， 所述动态匹配电路包括控制电路和至少一种匹配电路； 所述控制 电路与所述至少一种匹配电路均相连；
所述控制电路设置为：传输控制所述至少一种匹配电路通断的控制信号。
2、根据权利要求 1所述的无线充电装置， 其中， 所述匹配电路包含以下 类型：
WPC匹配电路和 PMA匹配电路。
3、根据权利要求 1所述的无线充电装置， 其中， 该装置还包括无线充电 接收电路；
所述无线充电接收电路设置为： 通过控制线连接至所述动态匹配电路的 控制电路；
所述无线充电接收电路设置为： 通过所述控制线向所述动态匹配电路发 送控制信号， 以控制所述动态匹配电路从所述至少一种匹配电路中选择一匹 配电路接通。
4、 根据权利要求 1所述的无线充电装置， 其中， 所述控制电路设置为： 在所述至少一种匹配电路之间切换的开关， 当所述开关切换一匹配电路时该 匹配电路接通。
5、根据权利要求 1所述的无线充电装置， 其中， 所述控制电路为可调电 容。
6、根据权利要求 1所述的无线充电装置， 其中， 所述动态匹配电路包含 至少两种匹配电路。
7、 应用权利要求 1至 6任一中的无线充电装置的无线充电方法， 包括： 无线充电接收电路向所述动态匹配电路发送控制信号， 指示所述动态匹 配电路从至少一种匹配电路中选择相应的匹配电路接通； 所述动态匹配电路根据所述控制信号切换接通相应的电路， 开始充电。
8、根据权利要求 7所述的无线充电方法， 其中， 无线充电接收电路向所 述动态匹配电路发送控制信号的步骤之前， 还包括：
接收线圈将接收到的握手信息经由所述动态匹配电路发送至所述无线充 电接^:电路；
所述无线充电接收电路根据所述握手信息， 生成所述控制信号。
9、根据权利要求 8所述的无线充电方法， 其中， 所述接收线圈将接收到 的握手信息经由所述动态匹配电路发送至所述无线充电接收电路时， 所述动 态匹配电路通过传输频率的改变来代表数字信号的高低电位， 以所述数字信 号承载所述握手信息。
10、 根据权利要求 8所述的无线充电方法， 其中， 所述无线充电接收电 路根据所述握手信息， 生成所述控制信号包括：
所述无线充电接收电路判断接收到的握手信息对应的无线充电标准， 确 定需要的匹配电路的类型；
所述无线充电接收电路生成所述控制信号， 在所述控制信号中指示控制 电路选择的匹配电路。
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