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. 26, 2021
Filed:
Feb. 01, 2019
Applicant:
Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;
Inventors:
Jong Ok Ha, Suwon-si, KR;
Jeong Hoon Kim, Suwon-si, KR;
Byeong Hak Jo, Suwon-si, KR;
Shinichi Iizuka, Suwon-si, KR;
Assignee:
Samsung Electro-Mechanics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/04 (2006.01); H03F 1/02 (2006.01); H03F 3/21 (2006.01); H03F 1/30 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0205 (2013.01); H03F 3/21 (2013.01); H03F 1/302 (2013.01); H03F 2200/18 (2013.01); H03F 2200/555 (2013.01);
Abstract
A power amplifier device includes a bias circuit to generate a startup current, which is based on an internal voltage and a startup voltage, during a startup time prior to a steady driving time point, and to generate a bias current, which is based on the internal voltage, after the steady driving time point, and a startup circuit to supply the bias circuit with the startup voltage during the startup time.