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:
Aug. 30, 2011
Filed:
Nov. 13, 2009
Sang Hoon Ha, Gyunggi-do, KR;
Sang Hee Kim, Seoul, KR;
Joong Jin Nam, Seoul, KR;
Ki Joong Kim, Jeollabuk-do, KR;
Jae Hyouck Choi, Gyunggi-do, KR;
Shinichi Ilzuka, Gyunggi-do, KR;
Youn Suk Kim, Gyunggi-do, KR;
Sang Hoon Ha, Gyunggi-do, KR;
Sang Hee Kim, Seoul, KR;
Joong Jin Nam, Seoul, KR;
Ki Joong Kim, Jeollabuk-do, KR;
Jae Hyouck Choi, Gyunggi-do, KR;
Shinichi Ilzuka, Gyunggi-do, KR;
Youn Suk Kim, Gyunggi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-do, KR;
Abstract
A power amplifier system with power control function provides accurate and efficient power control by controlling a bias voltage and a bias current of the power amplifier at the same time. A power amplifier system with power control function according to an aspect of the invention may include: a power amplifier receiving a bias voltage and a bias current from a power voltage source and having a gain controlled according to the magnitude of the bias voltage and the bias current; a voltage detection controller detecting the magnitude of the bias voltage being supplied to the power amplifier and comparing the magnitude of the bias voltage with a predetermined reference voltage to control the magnitude of the bias voltage; and a current detection controller detecting voltage having a magnitude equivalent to the magnitude of the bias current being supplied to the power amplifier and comparing the magnitude of the voltage equivalent to the magnitude of the bias current with the reference voltage to control the magnitude of the bias current.