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:
Jan. 19, 2016
Filed:
Feb. 19, 2015
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Assignee:
PANASONIC CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/02 (2006.01); H03F 3/217 (2006.01); H03F 3/21 (2006.01); H03F 3/24 (2006.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H04B 1/02 (2013.01); H03F 3/211 (2013.01); H03F 3/2178 (2013.01); H03F 3/24 (2013.01); H03F 2200/451 (2013.01); H03F 2203/21109 (2013.01); H04B 2001/0408 (2013.01);
Abstract
A power amplification device includes: a first power-amplifier array including a plurality of first switching elements that constitute a class-D power amplifier for a higher bits; a second power-amplifier array including a plurality of second switching elements that constitute a class-D power amplifier for a lower bits; and a capacitor array including a plurality of capacitance elements. The second switching elements have a larger on-resistance than the first switching elements. The first power-amplifier array is arranged between the second power-amplifier array and the capacitor array.