公开(公告)号：US20160087481A1

公开(公告)日：2016-03-24

申请号：US14530134

申请日：2014-10-31

Applicant: Broadcom Corporation

Inventor： Bing Jiang ,  John Walley

IPC: H02J7/02 ,  H02J5/00

CPC classification number: H02J50/10 ,  H02J50/70

Abstract: A wireless transmitter is described herein that provides power wirelessly to an apparatus with high efficiency. For example, the wireless power transmitter may include a class E amplifier that is used as a gate driver for a main power amplifier. This advantageously enables power to be transmitted wirelessly with a 100% theoretical power efficiency and with minimal power loss. Furthermore, electromagnetic interference (EMI) issues are reduced because only low orders of harmonics are applied to the gate of the main power amplifier. A system that incorporates such a wireless transmitter and methods of operating the same are also described herein.

Abstract translation: 这里描述了一种无线发射机，其以高效率无线地向设备提供电力。 例如，无线电力发射机可以包括用作主功率放大器的栅极驱动器的E类放大器。 这有利地使得能够以100％的理论功率效率和最小的功率损耗无线地传输功率。 此外，由于只有低阶谐波被施加到主功率放大器的栅极，电磁干扰（EMI）问题被减少。 这里还描述了结合了这种无线发射机的系统和操作该无线发射机的方法。