公开(公告)号：US20160118805A1

公开(公告)日：2016-04-28

申请号：US14522949

申请日：2014-10-24

Applicant: Motorola Solutions, Inc

Inventor： CHARLES B. SWOPE ,  LENG H. OOI

IPC: H02J5/00

CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80

Abstract: A wireless power transfer system and method is provided. The system includes a source coil that is coupled to a power supplying device and a receiver coil that is coupled to a power receiving device. In operation, when the source coil is energized by the power supplying device and the receiver coil is positioned within a predetermined range of distances from the source coil, the receiver coil is inductively coupled to the source coil at a predefined magnetic resonance frequency to wirelessly transfer power from the power supplying device to the power receiving device. The power receiving device measures a voltage level at the receiver coil and sends information pertaining to the voltage level to the power supplying device. The power supplying device adjusts voltage at the source coil based on comparing the voltage level with a predetermined threshold determined for the power receiving device.

Abstract translation: 提供了一种无线电力传输系统和方法。 该系统包括耦合到供电装置的源极线圈和耦合到电力接收装置的接收器线圈。 在操作中，当源极线圈被供电装置激励并且接收器线圈位于距源极线圈的预定距离范围内时，接收器线圈以预定的磁共振频率感应耦合到源极线圈以无线地传输 从供电装置到电力接收装置的电力。 电力接收装置测量接收线圈的电压电平，并向电力供给装置发送关于电压电平的信息。 电源装置基于将电压电平与为电力接收装置确定的预定阈值进行比较来调节源极线圈处的电压。

公开(公告)号：US20160118834A1

公开(公告)日：2016-04-28

申请号：US14522985

申请日：2014-10-24

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： CHARLES B. SWOPE ,  LENG H. OOI

IPC: H02J7/02 ,  H02J7/04

CPC classification number: H02J7/025 ,  H02J7/04 ,  H02J50/12 ,  H02J50/80

Abstract: A portable radio device is adapted to function as a wireless charger. The device includes a power supply source, a power control circuit, a controller, a power amplifier connected to the power control circuit to draw a first supply voltage from the power control circuit, and a source coil. In operation, the controller receives a request for charging at least one other device coupled to a receiver coil. When the receiver coil is positioned within a predetermined range of distances from the source coil, the controller switches a connection of the power control circuit to the source coil and controls the power control circuit to increase the voltage to a second supply voltage provided to energize the source coil and to inductively couple the source coil to the receiver coil at a predetermined magnetic resonance frequency for wirelessly charging the at least one other device.

Abstract translation: 便携式无线电设备适于用作无线充电器。 该装置包括电源，功率控制电路，控制器，连接到功率控制电路以从功率控制电路抽取第一电源电压的功率放大器和源极线圈。 在操作中，控制器接收对耦合到接收器线圈的至少一个其它设备进行充电的请求。 当接收器线圈位于距源极线圈的预定距离范围内时，控制器将功率控制电路的连接切换到源线圈，并且控制功率控制电路将电压增加到提供给第二电源电压 并且以预定的磁共振频率将源极线圈感应耦合到接收器线圈，以无线地对至少一个其它器件充电。