公开(公告)号：WO2019217736A1

公开(公告)日：2019-11-14

申请号：PCT/US2019/031601

申请日：2019-05-09

Applicant: QUALCOMM INCORPORATED

Inventor： KUN, Cheong ,  GUO, Guoyong ,  GONG, Curtis ,  SHETYE, Kalpesh ,  PAPARRIZOS, Georgios Konstantinos ,  SUTTON, Todd

IPC: H02J7/00 ,  H02M3/07 ,  H02M3/28 ,  H02J1/10

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.