公开(公告)号：US09362755B2

公开(公告)日：2016-06-07

申请号：US14502048

申请日：2014-09-30

Applicant: Texas Instruments Incorporated

Inventor： Ashish Khandelwal ,  Joseph M. Khayat ,  Yipeng Su ,  Robert A. Neidorff ,  Bharath B. Kannan

IPC: H04B5/00 ,  H02J5/00 ,  H03K19/20 ,  H04B5/02 ,  H02J7/02

CPC classification number: H02J50/10 ,  H02J5/005 ,  H02J7/025 ,  H02J50/80 ,  H03K5/1532 ,  H03K5/1536 ,  H03K5/24 ,  H03K19/20 ,  H03K2005/00078 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0093 ,  H04B5/02

Abstract: A primary side wireless power transmitter inductively couplable to a secondary side wireless power receiver for supplying power to the wireless power receiver for receiving communications from the secondary side wireless power receiver through the inductive coupling comprises a primary side tank circuit receiving a signal on from the secondary side wireless power receiver. A phase delay or time delay circuit generates a fixed delay clock signal. A sample and hold circuit samples a tank circuit voltage utilizing the fixed phase or time delayed clock signal. A comparator is coupled to an output of the sample and hold circuit for extracting data or commands from the signal stream. A method of operating a primary side wireless transmitter inductively coupled to a secondary side wireless power receiver for supplying power to the wireless power receiver to power a load coupled to the receiver is also disclosed.

Abstract translation: 电感耦合到次级侧无线电力接收器的初级侧无线电力发射器，用于向无线电力接收器供电以通过电感耦合从次级侧无线电力接收器接收通信，包括初级侧电路接收来自次级侧的信号 侧无线电源接收器。 相位延迟或时间延迟电路产生固定的延迟时钟信号。 采样和保持电路利用固定相位或时间延迟的时钟信号对储能电路电压进行采样。 比较器耦合到采样和保持电路的输出端，用于从信号流中提取数据或命令。 还公开了一种操作初级侧无线发射机的方法，所述初级侧无线发射机感应耦合到次级侧无线电力接收机，用于向无线电力接收机供电以为耦合到接收机的负载供电。