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:
Sep. 09, 2025
Filed:
Nov. 14, 2023
Power Forest Technology Corporation, Hsinchu County, TW;
Power Forest Technology Corporation, Hsinchu County, TW;
Abstract
A controller for controlling a blocking switch of a power converter is provided. The controller includes a control pin and a sensing circuit. The control pin is coupled to a control terminal of the blocking switch and an output terminal of the blocking switch. The sensing circuit includes a control switch, a variable resistance circuit, and a judgment circuit. A first terminal of the control switch is coupled to the control pin. The variable resistance circuit is coupled between a second terminal of the control switch and a reference low voltage. The judgment circuit controls the variable resistance circuit to provide a detection resistance value with a minimum value, and turns on the control switch to obtain a sensing voltage value. When the detection resistance value has a maximum value and the sensing voltage value is lower than a reference voltage value, the judgment circuit provides a notification signal.