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.

Date of Patent:
Apr. 06, 2021

Filed:

Aug. 27, 2019
Applicant:

Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;

Inventors:

Kyu Jin Choi, Suwon-si, KR;

Je Hee Cho, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/30 (2006.01); H03F 3/21 (2006.01);
U.S. Cl.
CPC ...
H03F 1/30 (2013.01); H03F 3/21 (2013.01); H03F 2200/447 (2013.01);
Abstract

A bias circuit includes a current generating circuit generating a first compensation current and a second compensation current, in which an ambient temperature change is reflected, based on a reference current, a first temperature compensation circuit generating a first base bias current, based on the first compensation current, to output the first base bias current to a base node of an amplifying circuit, and a second temperature compensation circuit generating a second base bias current, based on the second compensation current, to output the second base bias current to the base node of the amplifying circuit.


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