The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2023
Filed:
May. 23, 2022
Astec International Limited, Kowloon, HK;
PengFei Li, ShenZhen, CN;
XiaoLin He, ShenZhen, CN;
HaiJun Zhang, ShenZhen, CN;
XunJiang Dai, ShenZhen, CN;
Liang Meng, ShenZhen, CN;
Astec International Limited, Kowloon, HK;
Abstract
A switched mode power supply (SMPS) includes a filter (), a power factor correction (PFC) circuit (), and a control circuit () configured to determine various electrical parameters of the SMPS. In some embodiments, the control circuit () is configured to determine a power line frequency and an AC input voltage based on an AC line voltage and an AC neural voltage. In other embodiments, the control circuit () is configured to determine an AC input current based on a reactive current flowing through the filter () and a PFC AC current. In further embodiments, the control circuit () is configured to report a value of an electrical parameter if value is determined to be accurate. Other example switch mode power supplies, control circuits and methods are also disclosed.