公开(公告)号：US11171493B2

公开(公告)日：2021-11-09

申请号：US16407038

申请日：2019-05-08

Applicant: QUALCOMM Incorporated

Inventor： Cheong Kun ,  Guoyong Guo ,  Curtis Gong ,  Kalpesh Shetye ,  Georgios Konstantinos Paparrizos ,  Todd Sutton

IPC: H02J7/00 ,  H02J7/02

Abstract: A battery charging circuit includes a buck converter, a charge pump power converter, a sensor external to or internal to the battery charging circuit, and a control unit. The charge pump power converter includes an output coupled to an output of the buck converter for charging a battery. The sensor is configured to sense a total input current. The control unit receives the total input current that is sensed and compensates for a variation in an input current to the charge pump power converter based on whether the total input current meets a specified current variance.