公开(公告)号：US20130293189A1

公开(公告)日：2013-11-07

申请号：US13678440

申请日：2012-11-15

Applicant: QUALCOMM INCORPORATED

Inventor： Zhen Ning Low ,  Scott C. Hooten ,  Ngo Van Nguyen

IPC: H01F38/14 ,  H02J7/00

CPC classification number: H01F38/14 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/70 ,  H03F1/565 ,  H03F3/2176 ,  H04B5/0037

Abstract: This disclosure provides systems, methods, and apparatus for transferring power wirelessly via a wireless power transmitter. In one aspect, the transmitter comprises a first circuit configured to generate a first signal, where the first circuit includes a first inductor. The transmitter further comprises a second circuit configured to generate a second signal out of phase with the first signal. The second circuit includes a second inductor inductively coupled with the first inductor. The first inductor and the second inductor may have a leakage inductance of at least a minimum value so as to not produce a substantially square waveform at an output of the first circuit and an output of the second circuit. The transmitter further comprises a filter circuit configured to filter the first signal and the second signal.

Abstract translation: 本公开提供了经由无线电力发射机无线传送电力的系统，方法和装置。 在一个方面，发射机包括被配置为产生第一信号的第一电路，其中第一电路包括第一电感器。 发射机还包括被配置为产生与第一信号异相的第二信号的第二电路。 第二电路包括与第一电感器感应耦合的第二电感器。 第一电感器和第二电感器可以具有至少最小值的漏电感，从而在第一电路的输出和第二电路的输出处不产生基本上方波的波形。 发射机还包括被配置为对第一信号和第二信号进行滤波的滤波电路。