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:
Sep. 29, 2026
Filed:
Oct. 24, 2024
Shanghai Hanmai Electronic Technology Co., Ltd, Shanghai, CN;
Xiaohui Wu, Shanghai, CN;
Shanghai Hanmai Electronic Technology Co., Ltd, Shanghai, CN;
Abstract
A multi-phase buck converter including M converter branches and a loop error amplifier and a chip are provided. Each converter branch includes a driving module and a power stage output circuit. The driving module includes a current information error amplifier, a synchronous ramp voltage generation circuit configured to generate a synchronous ramp signal based on the output voltage, a pulse width modulation comparator, and a driving control circuit. The current information error amplifier compares a detection voltage across an output inductor in a current converter branch with a detection voltage across an output inductor of in a previous converter branch, to generate a current information error signal. The pulse width modulation comparator superimposes the current information error signal to the output voltage error signal to generate a modulation voltage signal, and compares the modulation voltage signal with the synchronous ramp signal to generate a duty cycle modulation set signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile