公开(公告)号：US20250112553A1

公开(公告)日：2025-04-03

申请号：US18480340

申请日：2023-10-03

Applicant: STMicroelectronics International N.V.

Inventor： Claudio Bona ,  Kien Beng Tan

IPC: H02M3/158 ,  H02J7/00 ,  H02M1/00

Abstract: According to an embodiment, a method of operating an M-level buck converter in a battery charging circuit is provided. The M-level buck converter includes 2×N×(M−1) number of transistors. M and N are greater than one. The method includes operating the M-level buck converter in a first mode of the battery charging circuit corresponding to a high-current charge mode. The method further includes operating the M-level buck converter in a second mode of the battery charging circuit corresponding to a low-current charge mode. In the first mode, 2×N×(M−1) number of transistors are switched ON and OFF. In the second mode, 2×(M−1) number of transistors are switched ON and OFF and 2×N×(M−1)−2×(M−1) number of transistors are fully deactivated.