Invention Application
- Patent Title: AUDIO AMPLIFIER
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Application No.: US17698640Application Date: 2022-03-18
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Publication No.: US20220302886A1Publication Date: 2022-09-22
- Inventor: Markus Mandl , Gregor Sauer , Thomas Stein
- Applicant: Robert Bosch GmbH
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Priority: DE102021202687.7 20210319
- Main IPC: H03F3/217
- IPC: H03F3/217 ; H03F3/183

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 amplifier 1 is proposed, with a modulator section 4 for accepting an input signal and outputting two intermediate signals, wherein the modulator section 4 is designed to generate the intermediate signals by modulating the input signal, with an amplifier section 8 for accepting the two intermediate signals and outputting two amplified signals, wherein the amplifier section 8 is designed to generate the two amplified signals by amplifying the two intermediate signals, the amplifier section having two power stages 11;12, with an end section 21 for accepting the two amplified signals and for outputting an output signal for a loudspeaker device 2, wherein the audio amplifier 1 can be switched between parallel operation and bridge operation.
An audio amplifier 1 is proposed, with a modulator section 4 for accepting an input signal and outputting two intermediate signals, wherein the modulator section 4 is designed to generate the intermediate signals by modulating the input signal, with an amplifier section 8 for accepting the two intermediate signals and outputting two amplified signals, wherein the amplifier section 8 is designed to generate the two amplified signals by amplifying the two intermediate signals, the amplifier section having two power stages 11;12, with an end section 21 for accepting the two amplified signals and for outputting an output signal for a loudspeaker device 2, wherein the audio amplifier 1 can be switched between parallel operation and bridge operation.
Public/Granted literature
- US11804809B2 Audio amplifier Public/Granted day:2023-10-31
Information query
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