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:
Apr. 29, 2024
Lite-on Technology Corporation, Taipei, TW;
Kun-Hung Lee, Taipei, TW;
Yun-Chieh Hsu, Taipei, TW;
LITE-ON TECHNOLOGY CORPORATION, Taipei, TW;
Abstract
A frequency modulation circuit of a power supply includes a frequency adjustment circuit and a switch control signal generation circuit coupled to the frequency adjustment circuit. The switch control signal generation circuit generates a plurality of switch control signals to the frequency adjustment circuit based on a peak load request, in order to control a plurality of switches in the frequency adjustment circuit. In response to these switch control signals, an internal equivalent resistance and an internal equivalent capacitance of the frequency adjustment circuit are altered. By adjusting the internal equivalent resistance and internal equivalent capacitance of the frequency adjustment circuit, a switch frequency of a PFC circuit power stage of the power supply is controlled by the frequency adjustment circuit, in order to meet the peak load request.