Inventors

Kim Seong-Il, Hyung Sup Yoon, Jongmin Lee, Min Byoung-Gue, Hae Cheon Kim, Eun Soo Nam

Application No.

12960153 (2010.12.03)

Publication No.

20110133843 (2011.06.09)

Registration No.

8130041 (2012.03.06)

Country

UNITED STATES

Project Code

09ZB1400, Development support for customer-based convergence components, Hee-Bum Jung

Abstract

Provided is a power amplifier device. The power amplifier device includes: a cutoff unit cutting off a direct current (DC) component of a signal delivered from a signal input terminal; a circuit protecting unit connected to the cutoff unit and stabilizing a signal delivered from the cutoff unit; and an amplification unit connected to the circuit protecting unit and amplifying a signal delivered from the circuit protecting unit, wherein the amplification unit comprises a plurality of transistors connected in parallel to the circuit protecting unit and the circuit protecting unit comprises resistors connected to between bases of the plurality of transistors.