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:
Oct. 31, 2023

Filed:

Mar. 18, 2022
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Markus Mandl, Steinach Agendorf, DE;

Gregor Sauer, Straubing, DE;

Thomas Stein, Wald, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/217 (2006.01); H03F 3/183 (2006.01);
U.S. Cl.
CPC ...
H03F 3/2173 (2013.01); H03F 3/183 (2013.01); H03F 2200/03 (2013.01); H03F 2200/171 (2013.01); H03F 2200/351 (2013.01);
Abstract

In the field of audio amplifiers, the prior art for high output power levels is now to use class D technology. In this technology, audio signals are converted into a pulsed signal. An audio amplifieris proposed, with a modulator sectionfor accepting an input signal and outputting two intermediate signals, wherein the modulator sectionis designed to generate the intermediate signals by modulating the input signal, with an amplifier sectionfor accepting the two intermediate signals and outputting two amplified signals, wherein the amplifier sectionis designed to generate the two amplified signals by amplifying the two intermediate signals, the amplifier section having two power stages, with an end sectionfor accepting the two amplified signals and for outputting an output signal for a loudspeaker device, wherein the audio amplifiercan be switched between parallel operation and bridge operation.


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