公开(公告)号：US20190120905A1

公开(公告)日：2019-04-25

申请号：US15789663

申请日：2017-10-20

Applicant: QUALCOMM Incorporated

Inventor： David WONG ,  Neal HOROVITZ ,  Ta-Tung YEN ,  Sanghwa JUNG ,  Cheong KUN ,  Kin Siu FUNG

IPC: G01R31/36 ,  H02J7/02 ,  H03K5/24 ,  H02J50/10 ,  H02J7/04

CPC classification number: H02J7/025 ,  G01R31/3648 ,  G01R31/382 ,  H02J7/04 ,  H02J50/10 ,  H02M3/158 ,  H03K5/24

Abstract: Enhanced reverse boosting detection in a wireless charging scheme is disclosed. In some implementations, a minimum mid-level input voltage regulation (VMID_MIN regulation) loop is provided to regulate an input voltage from a wirelessly coupled power source when a mid-level of the input voltage falls below a predetermined threshold. The input voltage is provided to a buck converter within a wireless charging receiver. An input missing poller signal generator is provided to generate an input missing poller (IMP) signal if the VMID_MIN regulation loop becomes active and the buck converter has entered a discontinuous mode.