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. 09, 2025

Filed:

Feb. 01, 2023
Applicant:

Renesas Electronics America Inc., Milpitas, CA (US);

Inventor:

Zheyuan Tan, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02M 3/157 (2006.01);
U.S. Cl.
CPC ...
H02M 1/0032 (2021.05); H02M 3/157 (2013.01); H02M 3/158 (2013.01);
Abstract

A switching converter with adjustable on-time is presented. The switching converter includes an inductor coupled to a power switch; a pulse generator generating a pulsed signal to switch the power switch and a controller. The pulsed signal has an on-time adjustable between a first value and a second value, the first value being shorter than the second value. The controller identifies a mode of operation between a continuous conduction mode and a discontinuous conduction mode and sets the on-time to the second value when a continuous conduction mode is identified. The controller also measures a duration between successive inductor current pulses, compares the duration with a first threshold value and maintains the on-time to the second value as long as the duration is less than the first threshold value. When the duration increases above the first threshold value the controller sets the on-time to the first value.


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