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:
Mar. 10, 2026
Filed:
Feb. 06, 2024
Realtek Semiconductor Corp., HsinChu, TW;
Chien-Hao Chiu, HsinChu, TW;
Realtek Semiconductor Corp., HsinChu, TW;
Abstract
A switching regulator is arranged to receive an input voltage to generate an output voltage, and includes an inductor, a mode selection circuit, a multiplexer, and a driving circuit. The mode selection circuit is arranged to generate a selection signal, wherein the selection signal indicates whether the switching regulator operates in a PWM mode or a PFM mode. The multiplexer is arranged to output a PWM signal or a PFM signal according to the selection signal. The driving circuit is arranged to generate a driving signal according to the PWM/PFM signal to control switches in the switching regulator. In response to the switching regulator operating in the PFM mode, an energy storage time of the inductor in one cycle of the PFM signal is generated according to a period length of the PWM signal.