公开(公告)号：US11539246B1

公开(公告)日：2022-12-27

申请号：US17667553

申请日：2022-02-09

Applicant: RICHTEK TECHNOLOGY CORP.

Inventor： Wei-Shuo Wu

IPC: H02J50/40 ,  H02J50/80 ,  H02J7/00 ,  H02J50/10 ,  G08C17/02

Abstract: A wireless charging system includes a wireless power transmitter and N wireless power receivers. The wireless power transmitter includes a power input terminal for receiving an input power, and M transmission modules. Each transmission module includes a power controller, a power management unit, a bridge driver, and a transmission unit. The N wireless power receivers are for receiving N wireless power signals from N transmission units of N transmission modules respectively, and wirelessly transmitting the N communication signals to the N transmission units of the N transmission modules respectively. The M power management units of the M transmission modules are coupled to each other and transmit control signals for handshaking communication.