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:
Sep. 08, 2026

Filed:

Nov. 20, 2024
Applicant:

Richtek Technology Corporation, Zhubei City, TW;

Inventors:

Ta-Yung Yang, Taoyuan City, TW;

Yu-Chang Chen, Jiji Township, TW;

Kuo-Chi Liu, Hsinchu City, TW;

Tzu-Chen Lin, Zhubei City, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/00 (2006.01); H02M 1/00 (2007.01); H02M 1/40 (2007.01); H02M 3/335 (2006.01); H02M 1/36 (2007.01); H02M 1/38 (2007.01);
U.S. Cl.
CPC ...
H02M 3/01 (2021.05); H02M 1/0009 (2021.05); H02M 1/40 (2013.01); H02M 3/33571 (2021.05); H02M 1/0035 (2021.05); H02M 1/36 (2013.01); H02M 1/38 (2013.01); H02M 3/33507 (2013.01);
Abstract

A resonant power conversion circuit includes a resonant capacitor, a transformer, a high-side transistor, a low-side transistor, a first current detection circuit, an integrator, and a full-wave rectifying circuit. The resonant capacitor is coupled between a resonant node and a ground. The transformer includes a primary coil coupled between a switch node and the resonant node. The high-side transistor provides an input voltage to the switch node and the low-side transistor couples the switch node to the ground. The first current detection circuit generates a current detection signal based on a voltage of the resonant node. The integrator generates an integrating signal based on the current detection signal. The full-wave rectification circuit full-wave rectifies the integral signal to generate a rectified signal.


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