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.

Date of Patent:
Jul. 01, 2025

Filed:

Mar. 06, 2023
Applicant:

Lite-on Technology Corporation, Taipei, TW;

Inventors:

Yu-Cheng Lin, Taipei, TW;

Te-Hung Yu, Taipei, TW;

Chia-Hui Liang, Taipei, TW;

Min-Hao Hsu, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/42 (2007.01);
U.S. Cl.
CPC ...
H02M 1/4208 (2013.01);
Abstract

A power supply circuit is provided. The power factor correction (PFC) circuit is used to perform a power factor correction according to a first voltage to generate an intermediate voltage. The first storage capacitor is used to store a first electrical energy related to the intermediate voltage. The boost conversion circuit is connected to the PFC circuit and used to generate an output voltage according to the intermediate voltage. The boost conversion circuit includes a first post-stage inductor, a first post-stage diode and a first post-stage transistor. The second storage capacitor is used to store a second electrical energy related to the output voltage. The capacitance value of the second storage capacitor is less than the capacitance value of the first storage capacitor; the first electrical energy is completely or partially transferred as the second electrical energy.


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