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:
Apr. 21, 2026
Filed:
May. 24, 2024
Fsp Technology Inc., Taoyuan City, TW;
Yung-Hsiang Shih, Taoyuan City, TW;
Ren-Yu Huang, Taoyuan City, TW;
FSP TECHNOLOGY INC., Taoyuan City, TW;
Abstract
A power supply device includes a rectification circuit, a regulation circuit, a power conversion circuit and a control circuit. The rectification circuit rectifies an input power having a first frequency. The regulation circuit regulates the input power by a switching element. The control circuit includes a controller, a frequency perturbation module and a frequency setting module. The controller controls the switching element according to a control signal. The frequency perturbation module drains the input power to generate a perturbation signal having the first frequency. The frequency setting module generates the control signal based on a basic signal and a perturbation signal having a second frequency. Accordingly, the perturbation signal and the basic signal operating at different frequencies enable the control signal to operate at a varying frequency, further enabling a switching operation of the switching element to operate at the varying frequency.