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    • 1. 发明申请
    • DEVICES, SYSTEMS, AND METHODS FOR ADJUSTING OUTPUT POWER USING SYNCHRONOUS RECTIFIER CONTROL
    • 使用同步整流器控制来调整输出功率的装置,系统和方法
    • WO2017142689A1
    • 2017-08-24
    • PCT/US2017/014854
    • 2017-01-25
    • QUALCOMM INCORPORATED
    • MENEGOLI, Paolo
    • H02J50/12H02M7/00
    • H02J5/005H02J7/025H02J50/12H02M7/219H02M2007/2195Y02B70/1408
    • Methods and apparatus are disclosed for wirelessly receiving power. In one aspect, an apparatus for wireless receiving power is provided. The apparatus comprises a receive circuit configured to receive wireless power via a magnetic field sufficient to power or charge a load. The apparatus further comprises a synchronous rectifier electrically coupled to the receive circuit, the synchronous rectifier comprising a switch and configured to rectify an alternating current (AC) signal, generated in the receive circuit, to a direct current (DC) signal for supplying power to the load. The apparatus further comprises a controller configured to, during a period when an input voltage level of the synchronous rectifier is higher than an output voltage level of the synchronous rectifier, adjust a conduction angle of the switch at a first frequency substantially in phase with a frequency of the AC signal to adjust an output power to the load.
    • 公开了用于无线接收功率的方法和设备。 在一个方面,提供了一种用于无线接收功率的设备。 该装置包括接收电路,该接收电路被配置为经由足以给负载供电或充电的磁场接收无线电力。 所述装置进一步包括电耦合到所述接收电路的同步整流器,所述同步整流器包括开关并且被配置为将在所述接收电路中生成的交流(AC)信号整流为用于向所述接收电路提供功率的直流(DC)信号 负载。 所述设备进一步包括控制器,所述控制器被配置为在同步整流器的输入电压电平高于同步整流器的输出电压电平的时段期间以与第一频率基本同相的第一频率调整开关的导通角 的交流信号来调整负载的输出功率。
    • 5. 发明申请
    • METHODS AND APPARATUS FOR WIRELESS POWER AND COMMUNICATION TRANSFER
    • 用于无线电力和通信传输的方法和设备
    • WO2018057138A1
    • 2018-03-29
    • PCT/US2017/045921
    • 2017-08-08
    • QUALCOMM INCORPORATED
    • MENEGOLI, Paolo
    • H04B5/00H02J50/10H02J50/80
    • Aspects of this disclosure include apparatus and methods for receiving power wirelessly and communicating wirelessly at low power levels. One aspect of an apparatus that wirelessly receives power may be characterized by an impedance having a reactance component and the apparatus comprises an antenna circuit, and a control circuit. The antenna circuit is configured to receive inductive power from a magnetic field generated by a power transmitter. The antenna circuit is also configured to communicate with the power transmitter. The control circuit is coupled to the antenna circuit and is configured to vary the reactance component of the impedance to a level sufficient for allowing detection as communication from the antenna circuit by the power transmitter.
    • 本公开的各方面包括用于以低功率电平无线地接收功率和无线通信的装置和方法。 无线接收功率的设备的一个方面可以由具有电抗分量的阻抗来表征,并且该设备包括天线电路和控制电路。 天线电路被配置为从由功率发射器生成的磁场接收感应功率。 天线电路还被配置为与功率发射器通信。 控制电路耦合到天线电路,并被配置成将阻抗的电抗分量改变到足以允许通过电力发射器检测为来自天线电路的通信的电平。