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:
Feb. 08, 2022
Filed:
Mar. 25, 2019
Applicant:
Yamaha Corporation, Hamamatsu, JP;
Inventors:
Takeshi Togawa, Anjo, JP;
Masao Noro, Hamamatsu, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/217 (2006.01); H03F 3/185 (2006.01);
U.S. Cl.
CPC ...
H03F 3/217 (2013.01); H03F 3/2171 (2013.01); H03F 3/2173 (2013.01); H03F 2200/03 (2013.01); H03F 2200/171 (2013.01); H03F 2200/333 (2013.01); H03F 2200/351 (2013.01);
Abstract
A class D amplifier includes a self-oscillating class D amplification circuit that is driven by an output current signal; and a voltage-current converting circuit that outputs an output current signal in response to an input signal voltage and an output signal voltage from a feedback signal voltage.