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. 19, 2021
Filed:
Apr. 09, 2020
Applicant:
Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;
Inventor:
Su Yeon Han, Suwon-si, KR;
Assignee:
SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/30 (2006.01); H03F 3/24 (2006.01); H03F 3/195 (2006.01);
U.S. Cl.
CPC ...
H03F 1/302 (2013.01); H03F 3/195 (2013.01); H03F 3/245 (2013.01); H03F 2200/303 (2013.01); H03F 2200/426 (2013.01); H03F 2200/462 (2013.01); H03F 2203/21127 (2013.01); H03F 2203/21131 (2013.01);
Abstract
A power amplifier includes an amplifying circuit, including an amplifying transistor configured to amplify an input signal and configured to output an output signal, a bias circuit, including a bias transistor comprising an emitter configured to provide a bias current into a base of the amplifying transistor, and a base into which a control current is input, and an overcurrent protecting circuit configured to bypass the control current into a ground, according to a current level of the output signal.