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:
Oct. 11, 2022
Filed:
Jul. 10, 2019
Applicant:
Bose Corporation, Framingham, MA (US);
Inventors:
Remco Terwal, West Newton, MA (US);
Thomas Powell, Waltham, MA (US);
Assignee:
Bose Corporation, Framingham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/181 (2006.01); H04R 3/00 (2006.01); H03F 3/217 (2006.01); H02M 1/08 (2006.01); H02M 3/158 (2006.01); H03F 3/26 (2006.01);
U.S. Cl.
CPC ...
H03F 3/2173 (2013.01); H02M 1/083 (2013.01); H02M 3/1582 (2013.01); H03F 3/181 (2013.01); H03F 3/265 (2013.01); H04R 3/00 (2013.01); H03F 2200/03 (2013.01);
Abstract
The technology described in this document can be embodied in an apparatus that includes an amplifier that includes a first Zeta converter connected to a power supply and a load. The amplifier also includes a second Zeta converter connected to the power supply and the load. The second Zeta converter is driven by a complementary duty cycle relative to the first Zeta converter. The amplifier also includes a controller to provide an audio signal to the first Zeta converter and the second Zeta converter for delivery to the load.