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. 08, 2026
Filed:
Dec. 11, 2024
Weltrend Semiconductor Inc., Hsinchu, TW;
Jeng-Cheng Liu, Hsinchu, TW;
WELTREND SEMICONDUCTOR INC., Hsinchu, TW;
Abstract
An embodiment of the invention discloses a power supply system with first and second rectifier filters, and a power management module. The first rectifier filter is connected to a first winding for providing an output power source. The second rectifier filter is connected to an auxiliary winding for providing an auxiliary power source. The first winding and the auxiliary winding are inductively coupled with each other, and the first winding has a first number of turns larger than auxiliary winding does. The power management module selects one of the output power source and the auxiliary power source to be an input power source in response to one of the output power source and an operation power source. The power management module uses the input power source to generate and regulate the operation power source.