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:
Jan. 06, 2026

Filed:

Jan. 09, 2024
Applicant:

Leadtrend Technology Corp., Hsinchu County, TW;

Inventors:

Chao-Chih Lin, Hsinchu County, TW;

Ming-Chang Tsou, Hsinchu County, TW;

Assignee:

Leadtrend Technology Corp., Hsinchu County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/00 (2007.01); H02M 3/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H02M 3/01 (2021.05); H02M 3/33523 (2013.01); H02M 3/33571 (2021.05); H02M 1/0058 (2021.05);
Abstract

A primary-side controller applied to a power converter is used for controlling a frequency of a gate control signal according to a grouping mode. The primary-side controller includes a first counter, a second counter, an adjuster, a gate control signal generation circuit, and a logic circuit. The first counter generates a first signal according to the gate control signal and a predetermined number. The second counter generates a second signal according to a clock signal and the predetermined number. The adjuster determines whether to adjust the predetermined number according to the second signal, the predetermined number, and a frequency of the clock signal. The logic circuit generates a reset signal to the first counter and the second counter and an enable signal to the gate control signal generation circuit according to the first signal, the second signal, and the gate control signal.


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