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. 23, 2014
Filed:
Apr. 20, 2012
Young Jean Song, Gyunggi-do, KR;
Jun Goo Won, Gyunggi-do, KR;
Youn Suk Kim, Gyunggi-do, KR;
Shinichi Iizuka, Gyunggi-do, KR;
Ju Young Park, Gyunggi-do, KR;
Ki Joong Kim, Gyunggi-do, KR;
Young Jean Song, Gyunggi-do, KR;
Jun Goo Won, Gyunggi-do, KR;
Youn Suk Kim, Gyunggi-do, KR;
Shinichi Iizuka, Gyunggi-do, KR;
Ju Young Park, Gyunggi-do, KR;
Ki Joong Kim, Gyunggi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-Do, KR;
Abstract
There is provided an amplifier circuit. The amplifier circuit includes an amplifying unit including at least one transistor; at least one first bias circuit unit including a resistor and connected to the at least one transistor; and at least one second bias circuit unit connected between an input terminal to which an input signal is applied and the at least one transistor so as to block an input signal having a frequency higher than a first frequency or having a frequency lower than a second frequency. The amplifier circuit according to embodiment of the present invention may prevent thermal runaway, remove a harmonic component from an input signal to be amplified and suppress oscillations.