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. 13, 2016
Filed:
Jan. 15, 2015
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Mattheus Johan Koerts, Nijmegen, NL;
Fred Mostert, Gelderland, NL;
Fre Jorrit Jorritsma, Nijmegen, NL;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/217 (2006.01); H03F 1/52 (2006.01); H03F 3/183 (2006.01); H03F 3/21 (2006.01);
U.S. Cl.
CPC ...
H03F 1/523 (2013.01); H03F 1/52 (2013.01); H03F 3/183 (2013.01); H03F 3/211 (2013.01); H03F 3/2171 (2013.01); H03F 3/2173 (2013.01); H03F 2200/03 (2013.01); H03F 2200/351 (2013.01); H03F 2203/21139 (2013.01);
Abstract
A current limiter for Class-D amplifiers measures and stores a position of an over-current event. By comparing the stored position, output signals can be selectively inverted. As a result, the Class-D amplifier remains in a defined modulation scheme even during period of current limiting.