公开(公告)号：US20220376935A1

公开(公告)日：2022-11-24

申请号：US17386611

申请日：2021-07-28

Applicant: IC Plus Corp.

Inventor： Chef HSIAO ,  Daniel KUO

IPC: H04L12/10 ,  G06F1/28 ,  G06F1/26

Abstract: Power-good detection device for a PoE system with multiple power source devices having multiple power source devices comprises an input to connect multiple power source devices, power state detection circuit to measure power state signals received by the input and power-good threshold generation circuit to generate a threshold value in response to an input control signal. The power-good detection device determines a power-good (normal) and a failure state of the power source devices based on the threshold value and provides a power-good state signal.