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:
Jun. 30, 2026
Filed:
Mar. 15, 2024
Richtek Technology Corporation, Zhubei City, TW;
Chun-Jen Yu, Taoyuan, TW;
Chi-Jen Yang, Hsinchu, TW;
Tao-Cheng Yu, Hsinchu, TW;
Cheng-Wei Chung, Kaohsiung, TW;
RICHTEK TECHNOLOGY CORPORATION, Zhubei City, TW;
Abstract
A switching converter circuit includes: a power stage circuit and a current sensing circuit. The power stage circuit includes plural power switches, which include a circulation switch. The circulation switch is coupled in parallel to an inductor. When the circulation switch is turned ON, the inductor and the circulation switch constitute a circulation circuit. The current sensing circuit generates a current sensing signal. The power switches switch a switching node voltage at a switching node, thereby converting an input power to an output power. The circulation switch is controlled to be ON within a circulation period in each switching cycle, so that the switching node voltage is conducted to the output voltage. In a steady state, the inductor current circulates within the circulation circuit with a DC current level. The DC current level is lower than a peak of the inductor current.