公开(公告)号：US10601306B1

公开(公告)日：2020-03-24

申请号：US16381252

申请日：2019-04-11

Applicant: Dell Products L.P.

Inventor： Wei Cheng Yu ,  Merle Jackson Wood, III ,  Chung-Cheng Liao ,  Chi Che Wu

IPC: H02M1/32 ,  G06F1/26 ,  H02M7/217 ,  H02M3/335 ,  H02M1/00

Abstract: A power supply unit for an information handling system, including a filter module configured to filter an AC voltage signal; a rectifier module to rectify the filtered AC voltage signal to generate a DC voltage signal, the DC voltage signal proportional to the AC voltage signal; a voltage regulator module configured to determine that the DC voltage signal is above a threshold voltage level, and in response, clamp the DC voltage signal such that the clamped DC voltage signal i) is not proportional to the AC voltage signal and ii) is less than the threshold voltage level; a capacitor module to average peaks voltages of the clamped DC voltage signal; and a DC/DC converter to convert the averaged DC voltage signal to a converted DC voltage signal, the converted DC voltage signal having a desired DC voltage level.