公开(公告)号：US20170033586A1

公开(公告)日：2017-02-02

申请号：US14809942

申请日：2015-07-27

Applicant: QUALCOMM Incorporated

Inventor： Felix Weidner ,  Martin Pavlovsky

IPC: H02J7/02

Abstract: Systems, methods and apparatuses implementing hybrid symmetric and asymmetric control for soft switching in wireless power transfer applications are provided. An apparatus for wirelessly transferring charging power is provided. The apparatus comprises a wireless power coupler. The apparatus comprises driver circuit. The apparatus comprises a control unit configured to instruct a driver circuit to drive the wireless power coupler with a first voltage waveform when transferring wireless charging power less than a first amount. The first voltage waveform includes a positive portion having a first duration and a negative portion having the first. The control unit is further configured to selectively instruct the driver circuit to drive the wireless power coupler with a second voltage waveform when transferring wireless charging power greater than the first amount, the second voltage waveform including a positive portion having a second duration and a negative portion having a third duration that is not equal to the second duration.

Abstract translation: 提供了实现用于无线功率传输应用中的软交换的混合对称和非对称控制的系统，方法和装置。 提供了一种用于无线传送充电电力的装置。 该装置包括无线功率耦合器。 该装置包括驱动电路。 该装置包括：控制单元，配置成当传送小于第一量的无线充电功率时，指示驱动器电路以第一电压波形驱动无线功率耦合器。 第一电压波形包括具有第一持续时间的正部分和具有第一持续时间的负部分。 控制单元还被配置为当传输大于第一量的无线充电功率时，选择性地指示驱动器电路以第二电压波形驱动无线功率耦合器，第二电压波形包括具有第二持续时间的正部分和负部分 具有不等于第二持续时间的第三持续时间。