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:
Dec. 06, 2016
Filed:
Jan. 16, 2015
Robert Bosch Gmbh, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An amplifier arrangement for amplifying at least one first and one second audio input signal. In one embodiment, the arrangement includes a master amplifier designed as a class D amplifier. The first audio input signal is applied to the master audio input and a master audio output signal is applied to the master audio output. The arrangement also includes a master feedback loop; thus enabling the master amplifier to be designed as a self-oscillating class D amplifier having a master oscillation frequency, at least one slave amplifier, a slave feedback loop, wherein a slave audio output signal or signal portions thereof are fed back into a slave audio input, and a master-slave coupling loop, wherein the master audio output signal or signal portions thereof is coupled into the slave audio input, so that the slave amplifier has the master oscillation frequency as its oscillation frequency.