公开(公告)号：US20230213591A1

公开(公告)日：2023-07-06

申请号：US17728551

申请日：2022-04-25

Applicant: Delta Electronics, Inc.

Inventor： Ming-Shi HUANG ,  Zheng-Feng LI ,  Jhih-Cheng HU ,  Yi-Liang LIN ,  Yu-Min MENG ,  Chun-Wei LIN ,  Chun CHANG ,  Thiam-Wee TAN

IPC: G01R31/40 ,  G05F1/10 ,  H02M1/00 ,  H02M1/12

CPC classification number: G01R31/40 ,  G05F1/10 ,  H02M1/0009 ,  H02M1/12

Abstract: A power detection circuit is provided for detecting current total input power of a resonant circuit. The power detection circuit includes a detection circuit and an estimation circuit. The detection circuit receives a current signal and obtains resonant-slot baseband power according to the current signal to generate the baseband power value. The current signal represents a resonant-slot current generated by the resonant circuit. The estimation circuit receives the baseband power value and estimates the current total input power according to the baseband power value to generate an estimated power value.