公开(公告)号：US20240356441A1

公开(公告)日：2024-10-24

申请号：US18628007

申请日：2024-04-05

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Graeme G. MACKAY ,  Jin-Jyh SU ,  Hasnain AKRAM ,  Changjong LIM ,  Dave MARSHNIL

IPC: H02M3/158 ,  H02M1/08 ,  H02M3/07

CPC classification number: H02M3/158 ,  H02M1/08 ,  H02M3/07

Abstract: A multi-level power converter configured to receive a power supply and generate an inductor current may include a first switch coupled to a first capacitor, a second switch coupled to a second capacitor, a third switch coupled to a third capacitor, a fourth switch, an inductor coupled to a switch node between the second switch and the third switch, and a flying capacitor having a first terminal coupled to a first node between the first and second switch and a second terminal coupled to a second node between the third and fourth switch, wherein the second capacitor is configured to share charge with at least one of the first capacitor and the third capacitor to enable non-gate terminals of at least one of the first switch, the second switch, and the third switch to replenish with charge at or approximate to a duty cycle extreme of the multi-level power converter.