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. 09, 2025
Filed:
Dec. 16, 2022
Renesas Design (Uk) Limited, Bourne End, GB;
Julian Tyrrell, Swindon, GB;
Renesas Design (UK) Limited, Bourne End, GB;
Abstract
Described herein is a power converter operable in a pulse frequency modulation (PFM) mode. The power converted may be configured for maintaining a PFM frequency above a predetermined frequency threshold when a load current at an output node of the power converter decreases. The power converter may comprise an inductor. The power converter may be configured to, in a PFM switching cycle: during a positive charge phase of the PFM switching cycle, generate a positive charge across the inductor; and during a negative charge phase of the PFM switching cycle, generate a negative charge across the inductor smaller than or equal to the positive charge, such that a total net charge transferred to the output node during the PFM switching cycle is reduced, so as to maintain the PFM frequency above the predetermined frequency threshold.