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:
Oct. 03, 2023
Filed:
Nov. 24, 2021
Delta Electronics, Inc., Taoyuan, TW;
Yung-Sheng Yeh, Taoyuan, TW;
Hsiang-Sheng Hung, Taoyuan, TW;
DELTA ELECTRONICS, INC., Taoyuan, TW;
Abstract
A detection circuit is used to detect an input current of a switching power conversion circuit. The current detection circuit includes a current transform unit, a first unidirectional conduction component assembly, a flux reset circuit, a second unidirectional conduction component assembly, a first switch, a second switch, a control unit, and a detection unit. The current transform unit is coupled to a power switch of the switching power conversion circuit, and the first unidirectional conduction component assembly, the flux reset circuit, and the second unidirectional conduction component assembly are connected in parallel to the current transform unit. The first switch and the second switch are coupled to the first or second unidirectional conduction component assembly, and the control unit correspondingly controls the first switch and the second switch according to a first or second direction voltage of the input voltage.