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:
Nov. 04, 2025
Filed:
Oct. 24, 2023
Nuvoton Technology Corporation, Hsinchu, TW;
Chun Hsin Liu, Zhubei, TW;
NUVOTON TECHNOLOGY CORPORATION, Hsinchu, TW;
Abstract
A ramp voltage signal generated by an equivalent series resistance compensation circuit in prior art is not linear, and average amplitude and maximum amplitude of the ramp voltage signal changes with an input voltage and a turn-on time. It results in a comparison result or compensation value generated by a comparator of the constant-frequency turn-on circuit will change accordingly and is difficult to control. Thus, it is difficult to design the stability of the system. The embodiments of the present disclosure design an equivalent series resistance compensation circuit including hardware circuits. Through functions of these hardware circuits, a ramp voltage signal of which average amplitude and a maximum amplitude are constant is generated, thereby solving problems encountered in the prior art.