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:
Aug. 19, 2025
Filed:
Nov. 29, 2022
Elite Semiconductor Microelectronics Technology Inc., Hsinchu, TW;
Isaac Y. Chen, Hsinchu, TW;
Elite Semiconductor Microelectronics Technology Inc., Hsinchu, TW;
Abstract
An audio amplifier includes a plurality of power stages, a driving circuit, and a power stage control circuit. The driving circuit is arranged to drive the power stages. The power stage control circuit includes a feedback circuit and a control circuit. The feedback circuit is coupled to the power stages, and is arranged to generate a feedback signal according to at least one detection input, wherein the at least one detection input includes at least one of a power, a voltage signal corresponding to a switching time of the power stages, and a voltage signal corresponding to a switching frequency of the power stages. The control circuit is coupled between the feedback circuit and the power stages, and is arranged to generate a control signal according to the feedback signal, wherein the control signal is arranged to dynamically control a number of turned-on power stages in the power stages.